*/
const char *yaffs_fs_c_version =
- "$Id: yaffs_fs.c,v 1.75 2009-03-05 01:45:28 charles Exp $";
+ "$Id: yaffs_fs.c,v 1.76 2009-03-06 17:20:51 wookey Exp $";
extern const char *yaffs_guts_c_version;
#include <linux/version.h>
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
#include <linux/config.h>
#endif
#include <linux/kernel.h>
#include "asm/div64.h"
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
#include <linux/statfs.h> /* Added NCB 15-8-2003 */
#include <asm/statfs.h>
#define BDEVNAME_SIZE 0
#define yaffs_devname(sb, buf) kdevname(sb->s_dev)
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0))
/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */
#define __user
#endif
#endif
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
-#define YPROC_ROOT &proc_root
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26))
+#define YPROC_ROOT (&proc_root)
#else
#define YPROC_ROOT NULL
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
#define WRITE_SIZE_STR "writesize"
-#define WRITE_SIZE(mtd) (mtd)->writesize
+#define WRITE_SIZE(mtd) ((mtd)->writesize)
#else
#define WRITE_SIZE_STR "oobblock"
-#define WRITE_SIZE(mtd) (mtd)->oobblock
+#define WRITE_SIZE(mtd) ((mtd)->oobblock)
#endif
-#if(LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27))
#define YAFFS_USE_WRITE_BEGIN_END 1
#else
#define YAFFS_USE_WRITE_BEGIN_END 0
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,28))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
{
uint64_t result = partition_size;
- do_div(result,block_size);
+ do_div(result, block_size);
return (uint32_t)result;
}
#else
-#define YCALCBLOCKS(s,b) ((s)/(b))
+#define YCALCBLOCKS(s, b) ((s)/(b))
#endif
#include <asm/uaccess.h>
unsigned int yaffs_auto_checkpoint = 1;
/* Module Parameters */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-module_param(yaffs_traceMask,uint,0644);
-module_param(yaffs_wr_attempts,uint,0644);
-module_param(yaffs_auto_checkpoint,uint,0644);
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+module_param(yaffs_traceMask, uint, 0644);
+module_param(yaffs_wr_attempts, uint, 0644);
+module_param(yaffs_auto_checkpoint, uint, 0644);
#else
-MODULE_PARM(yaffs_traceMask,"i");
-MODULE_PARM(yaffs_wr_attempts,"i");
-MODULE_PARM(yaffs_auto_checkpoint,"i");
+MODULE_PARM(yaffs_traceMask, "i");
+MODULE_PARM(yaffs_wr_attempts, "i");
+MODULE_PARM(yaffs_auto_checkpoint, "i");
#endif
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25))
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
/* use iget and read_inode */
-#define Y_IGET(sb,inum) iget((sb),(inum))
+#define Y_IGET(sb, inum) iget((sb), (inum))
static void yaffs_read_inode(struct inode *inode);
#else
/* Call local equivalent */
#define YAFFS_USE_OWN_IGET
-#define Y_IGET(sb,inum) yaffs_iget((sb),(inum))
+#define Y_IGET(sb, inum) yaffs_iget((sb), (inum))
-static struct inode * yaffs_iget(struct super_block *sb, unsigned long ino);
+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino);
#endif
/*#define T(x) printk x */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18))
-#define yaffs_InodeToObjectLV(iptr) (iptr)->i_private
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
+#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private)
#else
-#define yaffs_InodeToObjectLV(iptr) (iptr)->u.generic_ip
+#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip)
#endif
#define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr)))
#define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode)
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info)
#else
#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp)
static void yaffs_put_super(struct super_block *sb);
static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
- loff_t * pos);
+ loff_t *pos);
static ssize_t yaffs_hold_space(struct file *f);
static void yaffs_release_space(struct file *f);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs_file_flush(struct file *file, fl_owner_t id);
#else
static int yaffs_file_flush(struct file *file);
#endif
static int yaffs_sync_object(struct file *file, struct dentry *dentry,
- int datasync);
+ int datasync);
static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
struct nameidata *n);
static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *n);
+ struct nameidata *n);
#else
static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode);
static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry);
#endif
static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
- struct dentry *dentry);
+ struct dentry *dentry);
static int yaffs_unlink(struct inode *dir, struct dentry *dentry);
static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname);
+ const char *symname);
static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- dev_t dev);
+ dev_t dev);
#else
static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- int dev);
+ int dev);
#endif
static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry);
static int yaffs_setattr(struct dentry *dentry, struct iattr *attr);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs_sync_fs(struct super_block *sb, int wait);
static void yaffs_write_super(struct super_block *sb);
#else
static int yaffs_write_super(struct super_block *sb);
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf);
-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf);
#else
static int yaffs_statfs(struct super_block *sb, struct statfs *buf);
static void yaffs_clear_inode(struct inode *);
static int yaffs_readpage(struct file *file, struct page *page);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_writepage(struct page *page, struct writeback_control *wbc);
#else
static int yaffs_writepage(struct page *page);
#if (YAFFS_USE_WRITE_BEGIN_END != 0)
static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata);
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata);
static int yaffs_write_end(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *pg, void *fsdadata);
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *pg, void *fsdadata);
#else
static int yaffs_prepare_write(struct file *f, struct page *pg,
- unsigned offset, unsigned to);
+ unsigned offset, unsigned to);
static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
- unsigned to);
-
+ unsigned to);
+
#endif
-static int yaffs_readlink(struct dentry *dentry, char __user * buffer,
- int buflen);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
+static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
+ int buflen);
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
#else
static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
#endif
};
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
static struct file_operations yaffs_file_operations = {
.read = do_sync_read,
.write = do_sync_write,
.llseek = generic_file_llseek,
};
-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18))
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
static struct file_operations yaffs_file_operations = {
.read = do_sync_read,
.mmap = generic_file_mmap,
.flush = yaffs_file_flush,
.fsync = yaffs_sync_object,
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
.sendfile = generic_file_sendfile,
#endif
};
.write_super = yaffs_write_super,
};
-static void yaffs_GrossLock(yaffs_Device * dev)
+static void yaffs_GrossLock(yaffs_Device *dev)
{
- T(YAFFS_TRACE_OS, ( "yaffs locking %p\n",current));
-
+ T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current));
down(&dev->grossLock);
- T(YAFFS_TRACE_OS, ( "yaffs locked %p\n",current));
-
+ T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current));
}
-static void yaffs_GrossUnlock(yaffs_Device * dev)
+static void yaffs_GrossUnlock(yaffs_Device *dev)
{
- T(YAFFS_TRACE_OS, ( "yaffs unlocking %p\n",current));
+ T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current));
up(&dev->grossLock);
-
}
-static int yaffs_readlink(struct dentry *dentry, char __user * buffer,
- int buflen)
+static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
+ int buflen)
{
unsigned char *alias;
int ret;
return ret;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
#else
static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
yaffs_GrossUnlock(dev);
- if (!alias)
- {
+ if (!alias) {
ret = -ENOMEM;
goto out;
- }
+ }
ret = vfs_follow_link(nd, alias);
kfree(alias);
out:
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
return ERR_PTR (ret);
#else
return ret;
}
struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
- yaffs_Object * obj);
+ yaffs_Object *obj);
/*
* Lookup is used to find objects in the fs
*/
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *n)
+ struct nameidata *n)
#else
static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry)
#endif
yaffs_GrossLock(dev);
T(YAFFS_TRACE_OS,
- ( "yaffs_lookup for %d:%s\n",
- yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
+ ("yaffs_lookup for %d:%s\n",
+ yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
- obj =
- yaffs_FindObjectByName(yaffs_InodeToObject(dir),
- dentry->d_name.name);
+ obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir),
+ dentry->d_name.name);
obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */
if (obj) {
T(YAFFS_TRACE_OS,
- ( "yaffs_lookup found %d\n", obj->objectId));
+ ("yaffs_lookup found %d\n", obj->objectId));
inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
if (inode) {
T(YAFFS_TRACE_OS,
- ( "yaffs_loookup dentry \n"));
+ ("yaffs_loookup dentry \n"));
/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to
* d_add even if NULL inode */
#if 0
}
} else {
- T(YAFFS_TRACE_OS, ( "yaffs_lookup not found\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n"));
}
static void yaffs_put_inode(struct inode *inode)
{
T(YAFFS_TRACE_OS,
- ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino,
- atomic_read(&inode->i_count)));
+ ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino,
+ atomic_read(&inode->i_count)));
}
#endif
obj = yaffs_InodeToObject(inode);
T(YAFFS_TRACE_OS,
- ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino,
- atomic_read(&inode->i_count),
- obj ? "object exists" : "null object"));
+ ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino,
+ atomic_read(&inode->i_count),
+ obj ? "object exists" : "null object"));
if (obj) {
dev = obj->myDev;
yaffs_Device *dev;
T(YAFFS_TRACE_OS,
- ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino,
- atomic_read(&inode->i_count),
- obj ? "object exists" : "null object"));
+ ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino,
+ atomic_read(&inode->i_count),
+ obj ? "object exists" : "null object"));
if (obj) {
dev = obj->myDev;
yaffs_DeleteObject(obj);
yaffs_GrossUnlock(dev);
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
- truncate_inode_pages (&inode->i_data, 0);
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
+ truncate_inode_pages (&inode->i_data, 0);
#endif
clear_inode(inode);
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs_file_flush(struct file *file, fl_owner_t id)
#else
static int yaffs_file_flush(struct file *file)
yaffs_Device *dev = obj->myDev;
T(YAFFS_TRACE_OS,
- ( "yaffs_file_flush object %d (%s)\n", obj->objectId,
- obj->dirty ? "dirty" : "clean"));
+ ("yaffs_file_flush object %d (%s)\n", obj->objectId,
+ obj->dirty ? "dirty" : "clean"));
yaffs_GrossLock(dev);
yaffs_Device *dev;
- T(YAFFS_TRACE_OS, ( "yaffs_readpage at %08x, size %08x\n",
- (unsigned)(pg->index << PAGE_CACHE_SHIFT),
- (unsigned)PAGE_CACHE_SIZE));
+ T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n",
+ (unsigned)(pg->index << PAGE_CACHE_SHIFT),
+ (unsigned)PAGE_CACHE_SIZE));
obj = yaffs_DentryToObject(f->f_dentry);
dev = obj->myDev;
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
BUG_ON(!PageLocked(pg));
#else
if (!PageLocked(pg))
yaffs_GrossLock(dev);
ret =
- yaffs_ReadDataFromFile(obj, pg_buf, pg->index << PAGE_CACHE_SHIFT,
- PAGE_CACHE_SIZE);
+ yaffs_ReadDataFromFile(obj, pg_buf,
+ pg->index << PAGE_CACHE_SHIFT,
+ PAGE_CACHE_SIZE);
yaffs_GrossUnlock(dev);
flush_dcache_page(pg);
kunmap(pg);
- T(YAFFS_TRACE_OS, ( "yaffs_readpage done\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_readpage done\n"));
return ret;
}
/* writepage inspired by/stolen from smbfs */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_writepage(struct page *page, struct writeback_control *wbc)
#else
static int yaffs_writepage(struct page *page)
if (offset > inode->i_size) {
T(YAFFS_TRACE_OS,
- (
- "yaffs_writepage at %08x, inode size = %08x!!!\n",
- (unsigned)(page->index << PAGE_CACHE_SHIFT),
- (unsigned)inode->i_size));
+ ("yaffs_writepage at %08x, inode size = %08x!!!\n",
+ (unsigned)(page->index << PAGE_CACHE_SHIFT),
+ (unsigned)inode->i_size));
T(YAFFS_TRACE_OS,
- ( " -> don't care!!\n"));
+ (" -> don't care!!\n"));
unlock_page(page);
return 0;
}
yaffs_GrossLock(obj->myDev);
T(YAFFS_TRACE_OS,
- ( "yaffs_writepage at %08x, size %08x\n",
- (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
+ ("yaffs_writepage at %08x, size %08x\n",
+ (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
T(YAFFS_TRACE_OS,
- ( "writepag0: obj = %05x, ino = %05x\n",
- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
+ ("writepag0: obj = %05x, ino = %05x\n",
+ (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
- nWritten =
- yaffs_WriteDataToFile(obj, buffer, page->index << PAGE_CACHE_SHIFT,
- nBytes, 0);
+ nWritten = yaffs_WriteDataToFile(obj, buffer,
+ page->index << PAGE_CACHE_SHIFT, nBytes, 0);
T(YAFFS_TRACE_OS,
- ( "writepag1: obj = %05x, ino = %05x\n",
- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
+ ("writepag1: obj = %05x, ino = %05x\n",
+ (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
yaffs_GrossUnlock(obj->myDev);
#if (YAFFS_USE_WRITE_BEGIN_END > 0)
static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata)
-
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata)
{
struct page *pg = NULL;
- pgoff_t index = pos >> PAGE_CACHE_SHIFT;
- uint32_t offset = pos & (PAGE_CACHE_SIZE - 1);
- uint32_t to = offset + len;
-
- int ret = 0;
- int space_held = 0;
-
- T(YAFFS_TRACE_OS, ( "start yaffs_write_begin\n"));
+ pgoff_t index = pos >> PAGE_CACHE_SHIFT;
+ uint32_t offset = pos & (PAGE_CACHE_SIZE - 1);
+ uint32_t to = offset + len;
+
+ int ret = 0;
+ int space_held = 0;
+
+ T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n"));
/* Get a page */
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,28)
- pg = grab_cache_page_write_begin(mapping,index,flags);
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)
+ pg = grab_cache_page_write_begin(mapping, index, flags);
#else
- pg = __grab_cache_page(mapping,index);
+ pg = __grab_cache_page(mapping, index);
#endif
- *pagep = pg;
- if(!pg){
+ *pagep = pg;
+ if (!pg) {
ret = -ENOMEM;
goto out;
}
/* Get fs space */
space_held = yaffs_hold_space(filp);
-
- if(!space_held){
+
+ if (!space_held) {
ret = -ENOSPC;
goto out;
}
-
+
/* Update page if required */
-
+
if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
ret = yaffs_readpage_nolock(filp, pg);
-
- if(ret)
+
+ if (ret)
goto out;
/* Happy path return */
- T(YAFFS_TRACE_OS, ( "end yaffs_write_begin - ok\n"));
-
+ T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n"));
+
return 0;
-
+
out:
- T(YAFFS_TRACE_OS, ( "end yaffs_write_begin fail returning %d\n",ret));
- if(space_held){
+ T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret));
+ if (space_held) {
yaffs_release_space(filp);
}
- if(pg) {
+ if (pg) {
unlock_page(pg);
page_cache_release(pg);
}
#else
static int yaffs_prepare_write(struct file *f, struct page *pg,
- unsigned offset, unsigned to)
+ unsigned offset, unsigned to)
{
+ T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n"));
- T(YAFFS_TRACE_OS, ( "yaffs_prepair_write\n"));
if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
return yaffs_readpage_nolock(f, pg);
return 0;
-
}
#endif
#if (YAFFS_USE_WRITE_BEGIN_END > 0)
static int yaffs_write_end(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *pg, void *fsdadata)
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *pg, void *fsdadata)
{
int ret = 0;
void *addr, *kva;
- uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE -1);
-
+ uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1);
-
- kva=kmap(pg);
+ kva = kmap(pg);
addr = kva + offset_into_page;
T(YAFFS_TRACE_OS,
- ( "yaffs_write_end addr %x pos %x nBytes %d\n", (unsigned) addr,
- (int)pos, copied));
+ ("yaffs_write_end addr %x pos %x nBytes %d\n",
+ (unsigned) addr,
+ (int)pos, copied));
ret = yaffs_file_write(filp, addr, copied, &pos);
if (ret != copied) {
T(YAFFS_TRACE_OS,
- (
- "yaffs_write_end not same size ret %d copied %d\n",
- ret, copied ));
+ ("yaffs_write_end not same size ret %d copied %d\n",
+ ret, copied));
SetPageError(pg);
ClearPageUptodate(pg);
} else {
#else
static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
- unsigned to)
+ unsigned to)
{
-
void *addr, *kva;
-
+
loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
int nBytes = to - offset;
int nWritten;
unsigned spos = pos;
unsigned saddr;
-
- kva=kmap(pg);
+
+ kva = kmap(pg);
addr = kva + offset;
saddr = (unsigned) addr;
T(YAFFS_TRACE_OS,
- ( "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr,
- spos, nBytes));
+ ("yaffs_commit_write addr %x pos %x nBytes %d\n",
+ saddr, spos, nBytes));
nWritten = yaffs_file_write(f, addr, nBytes, &pos);
if (nWritten != nBytes) {
T(YAFFS_TRACE_OS,
- (
- "yaffs_commit_write not same size nWritten %d nBytes %d\n",
- nWritten, nBytes));
+ ("yaffs_commit_write not same size nWritten %d nBytes %d\n",
+ nWritten, nBytes));
SetPageError(pg);
ClearPageUptodate(pg);
} else {
kunmap(pg);
T(YAFFS_TRACE_OS,
- ( "yaffs_commit_write returning %d\n",
- nWritten == nBytes ? 0 : nWritten));
+ ("yaffs_commit_write returning %d\n",
+ nWritten == nBytes ? 0 : nWritten));
return nWritten == nBytes ? 0 : nWritten;
-
}
#endif
-static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj)
+static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj)
{
if (inode && obj) {
/* Check mode against the variant type and attempt to repair if broken. */
- __u32 mode = obj->yst_mode;
- switch( obj->variantType ){
- case YAFFS_OBJECT_TYPE_FILE :
- if( ! S_ISREG(mode) ){
- obj->yst_mode &= ~S_IFMT;
- obj->yst_mode |= S_IFREG;
- }
-
- break;
- case YAFFS_OBJECT_TYPE_SYMLINK :
- if( ! S_ISLNK(mode) ){
- obj->yst_mode &= ~S_IFMT;
- obj->yst_mode |= S_IFLNK;
- }
-
- break;
- case YAFFS_OBJECT_TYPE_DIRECTORY :
- if( ! S_ISDIR(mode) ){
- obj->yst_mode &= ~S_IFMT;
- obj->yst_mode |= S_IFDIR;
- }
-
- break;
- case YAFFS_OBJECT_TYPE_UNKNOWN :
- case YAFFS_OBJECT_TYPE_HARDLINK :
- case YAFFS_OBJECT_TYPE_SPECIAL :
- default:
- /* TODO? */
- break;
- }
-
- inode->i_flags |= S_NOATIME;
-
+ __u32 mode = obj->yst_mode;
+ switch (obj->variantType) {
+ case YAFFS_OBJECT_TYPE_FILE:
+ if (!S_ISREG(mode)) {
+ obj->yst_mode &= ~S_IFMT;
+ obj->yst_mode |= S_IFREG;
+ }
+
+ break;
+ case YAFFS_OBJECT_TYPE_SYMLINK:
+ if (!S_ISLNK(mode)) {
+ obj->yst_mode &= ~S_IFMT;
+ obj->yst_mode |= S_IFLNK;
+ }
+
+ break;
+ case YAFFS_OBJECT_TYPE_DIRECTORY:
+ if (!S_ISDIR(mode)) {
+ obj->yst_mode &= ~S_IFMT;
+ obj->yst_mode |= S_IFDIR;
+ }
+
+ break;
+ case YAFFS_OBJECT_TYPE_UNKNOWN:
+ case YAFFS_OBJECT_TYPE_HARDLINK:
+ case YAFFS_OBJECT_TYPE_SPECIAL:
+ default:
+ /* TODO? */
+ break;
+ }
+
+ inode->i_flags |= S_NOATIME;
+
inode->i_ino = obj->objectId;
inode->i_mode = obj->yst_mode;
inode->i_uid = obj->yst_uid;
inode->i_gid = obj->yst_gid;
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
inode->i_blksize = inode->i_sb->s_blocksize;
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
inode->i_rdev = old_decode_dev(obj->yst_rdev);
inode->i_atime.tv_sec = (time_t) (obj->yst_atime);
inode->i_nlink = yaffs_GetObjectLinkCount(obj);
T(YAFFS_TRACE_OS,
- (
- "yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
- inode->i_mode, inode->i_uid, inode->i_gid,
- (int)inode->i_size, atomic_read(&inode->i_count)));
+ ("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
+ inode->i_mode, inode->i_uid, inode->i_gid,
+ (int)inode->i_size, atomic_read(&inode->i_count)));
switch (obj->yst_mode & S_IFMT) {
default: /* fifo, device or socket */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
init_special_inode(inode, obj->yst_mode,
- old_decode_dev(obj->yst_rdev));
+ old_decode_dev(obj->yst_rdev));
#else
init_special_inode(inode, obj->yst_mode,
- (dev_t) (obj->yst_rdev));
+ (dev_t) (obj->yst_rdev));
#endif
break;
case S_IFREG: /* file */
inode->i_op = &yaffs_file_inode_operations;
inode->i_fop = &yaffs_file_operations;
inode->i_mapping->a_ops =
- &yaffs_file_address_operations;
+ &yaffs_file_address_operations;
break;
case S_IFDIR: /* directory */
inode->i_op = &yaffs_dir_inode_operations;
} else {
T(YAFFS_TRACE_OS,
- ( "yaffs_FileInode invalid parameters\n"));
+ ("yaffs_FileInode invalid parameters\n"));
}
}
struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
- yaffs_Object * obj)
+ yaffs_Object *obj)
{
struct inode *inode;
if (!sb) {
T(YAFFS_TRACE_OS,
- ( "yaffs_get_inode for NULL super_block!!\n"));
+ ("yaffs_get_inode for NULL super_block!!\n"));
return NULL;
}
if (!obj) {
T(YAFFS_TRACE_OS,
- ( "yaffs_get_inode for NULL object!!\n"));
+ ("yaffs_get_inode for NULL object!!\n"));
return NULL;
}
T(YAFFS_TRACE_OS,
- ( "yaffs_get_inode for object %d\n", obj->objectId));
+ ("yaffs_get_inode for object %d\n", obj->objectId));
inode = Y_IGET(sb, obj->objectId);
- if(IS_ERR(inode))
- return NULL;
+ if (IS_ERR(inode))
+ return NULL;
/* NB Side effect: iget calls back to yaffs_read_inode(). */
/* iget also increments the inode's i_count */
}
static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
- loff_t * pos)
+ loff_t *pos)
{
yaffs_Object *obj;
int nWritten, ipos;
if (!obj) {
T(YAFFS_TRACE_OS,
- ( "yaffs_file_write: hey obj is null!\n"));
+ ("yaffs_file_write: hey obj is null!\n"));
} else {
T(YAFFS_TRACE_OS,
- (
- "yaffs_file_write about to write writing %zu bytes"
- "to object %d at %d\n",
- n, obj->objectId, ipos));
+ ("yaffs_file_write about to write writing %zu bytes"
+ "to object %d at %d\n",
+ n, obj->objectId, ipos));
}
nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0);
T(YAFFS_TRACE_OS,
- ( "yaffs_file_write writing %zu bytes, %d written at %d\n",
- n, nWritten, ipos));
+ ("yaffs_file_write writing %zu bytes, %d written at %d\n",
+ n, nWritten, ipos));
if (nWritten > 0) {
ipos += nWritten;
*pos = ipos;
inode->i_blocks = (ipos + 511) >> 9;
T(YAFFS_TRACE_OS,
- (
- "yaffs_file_write size updated to %d bytes, "
- "%d blocks\n",
- ipos, (int)(inode->i_blocks)));
+ ("yaffs_file_write size updated to %d bytes, "
+ "%d blocks\n",
+ ipos, (int)(inode->i_blocks)));
}
}
{
yaffs_Object *obj;
yaffs_Device *dev;
-
+
int nFreeChunks;
-
+
obj = yaffs_DentryToObject(f->f_dentry);
dev = obj->myDev;
yaffs_GrossLock(dev);
nFreeChunks = yaffs_GetNumberOfFreeChunks(dev);
-
+
yaffs_GrossUnlock(dev);
return (nFreeChunks > 20) ? 1 : 0;
{
yaffs_Object *obj;
yaffs_Device *dev;
-
-
+
+
obj = yaffs_DentryToObject(f->f_dentry);
dev = obj->myDev;
yaffs_GrossLock(dev);
-
- yaffs_GrossUnlock(dev);
+ yaffs_GrossUnlock(dev);
}
static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
if (offset == 0) {
T(YAFFS_TRACE_OS,
- ( "yaffs_readdir: entry . ino %d \n",
- (int)inode->i_ino));
- if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR)
- < 0) {
+ ("yaffs_readdir: entry . ino %d \n",
+ (int)inode->i_ino));
+ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) {
goto out;
}
offset++;
}
if (offset == 1) {
T(YAFFS_TRACE_OS,
- ( "yaffs_readdir: entry .. ino %d \n",
- (int)f->f_dentry->d_parent->d_inode->i_ino));
- if (filldir
- (dirent, "..", 2, offset,
- f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) {
+ ("yaffs_readdir: entry .. ino %d \n",
+ (int)f->f_dentry->d_parent->d_inode->i_ino));
+ if (filldir(dirent, "..", 2, offset,
+ f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) {
goto out;
}
offset++;
yaffs_GetObjectName(l, name,
YAFFS_MAX_NAME_LENGTH + 1);
T(YAFFS_TRACE_OS,
- ( "yaffs_readdir: %s inode %d\n", name,
+ ("yaffs_readdir: %s inode %d\n", name,
yaffs_GetObjectInode(l)));
if (filldir(dirent,
- name,
- strlen(name),
- offset,
- yaffs_GetObjectInode(l),
- yaffs_GetObjectType(l))
- < 0) {
+ name,
+ strlen(name),
+ offset,
+ yaffs_GetObjectInode(l),
+ yaffs_GetObjectType(l)) < 0) {
goto up_and_out;
}
}
}
- up_and_out:
- out:
-
+up_and_out:
+out:
yaffs_GrossUnlock(dev);
return 0;
/*
* File creation. Allocate an inode, and we're done..
*/
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
#define YCRED(x) x
#else
-#define YCRED(x) x->cred
+#define YCRED(x) (x->cred)
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- dev_t rdev)
+ dev_t rdev)
#else
static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- int rdev)
+ int rdev)
#endif
{
struct inode *inode;
uid_t uid = YCRED(current)->fsuid;
gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
- if((dir->i_mode & S_ISGID) && S_ISDIR(mode))
+ if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
mode |= S_ISGID;
if (parent) {
T(YAFFS_TRACE_OS,
- ( "yaffs_mknod: parent object %d type %d\n",
- parent->objectId, parent->variantType));
+ ("yaffs_mknod: parent object %d type %d\n",
+ parent->objectId, parent->variantType));
} else {
T(YAFFS_TRACE_OS,
- ( "yaffs_mknod: could not get parent object\n"));
+ ("yaffs_mknod: could not get parent object\n"));
return -EPERM;
}
T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, "
- "mode %x dev %x\n",
- dentry->d_name.name, mode, rdev));
+ "mode %x dev %x\n",
+ dentry->d_name.name, mode, rdev));
dev = parent->myDev;
switch (mode & S_IFMT) {
default:
/* Special (socket, fifo, device...) */
- T(YAFFS_TRACE_OS, (
- "yaffs_mknod: making special\n"));
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
- obj =
- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
- gid, old_encode_dev(rdev));
+ T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n"));
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
+ gid, old_encode_dev(rdev));
#else
- obj =
- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
- gid, rdev);
+ obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
+ gid, rdev);
#endif
break;
case S_IFREG: /* file */
- T(YAFFS_TRACE_OS, ( "yaffs_mknod: making file\n"));
- obj =
- yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
- gid);
+ T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n"));
+ obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
+ gid);
break;
case S_IFDIR: /* directory */
T(YAFFS_TRACE_OS,
- ( "yaffs_mknod: making directory\n"));
- obj =
- yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
- uid, gid);
+ ("yaffs_mknod: making directory\n"));
+ obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
+ uid, gid);
break;
case S_IFLNK: /* symlink */
- T(YAFFS_TRACE_OS, ( "yaffs_mknod: making symlink\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n"));
obj = NULL; /* Do we ever get here? */
break;
}
inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj);
d_instantiate(dentry, inode);
T(YAFFS_TRACE_OS,
- ( "yaffs_mknod created object %d count = %d\n",
- obj->objectId, atomic_read(&inode->i_count)));
+ ("yaffs_mknod created object %d count = %d\n",
+ obj->objectId, atomic_read(&inode->i_count)));
error = 0;
} else {
T(YAFFS_TRACE_OS,
- ( "yaffs_mknod failed making object\n"));
+ ("yaffs_mknod failed making object\n"));
error = -ENOMEM;
}
static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
int retVal;
- T(YAFFS_TRACE_OS, ( "yaffs_mkdir\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_mkdir\n"));
retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0);
#if 0
/* attempt to fix dir bug - didn't work */
return retVal;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
struct nameidata *n)
#else
static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode)
#endif
{
- T(YAFFS_TRACE_OS, ( "yaffs_create\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_create\n"));
return yaffs_mknod(dir, dentry, mode | S_IFREG, 0);
}
yaffs_Device *dev;
T(YAFFS_TRACE_OS,
- ( "yaffs_unlink %d:%s\n", (int)(dir->i_ino),
- dentry->d_name.name));
+ ("yaffs_unlink %d:%s\n", (int)(dir->i_ino),
+ dentry->d_name.name));
dev = yaffs_InodeToObject(dir)->myDev;
* Create a link...
*/
static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
- struct dentry *dentry)
+ struct dentry *dentry)
{
struct inode *inode = old_dentry->d_inode;
yaffs_Object *obj = NULL;
yaffs_Object *link = NULL;
yaffs_Device *dev;
- T(YAFFS_TRACE_OS, ( "yaffs_link\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_link\n"));
obj = yaffs_InodeToObject(inode);
dev = obj->myDev;
yaffs_GrossLock(dev);
- if (!S_ISDIR(inode->i_mode)) /* Don't link directories */
- {
- link =
- yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
- obj);
+ if (!S_ISDIR(inode->i_mode)) { /* Don't link directories */
+ link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
+ obj);
}
if (link) {
d_instantiate(dentry, old_dentry->d_inode);
atomic_inc(&old_dentry->d_inode->i_count);
T(YAFFS_TRACE_OS,
- ( "yaffs_link link count %d i_count %d\n",
- old_dentry->d_inode->i_nlink,
- atomic_read(&old_dentry->d_inode->i_count)));
-
+ ("yaffs_link link count %d i_count %d\n",
+ old_dentry->d_inode->i_nlink,
+ atomic_read(&old_dentry->d_inode->i_count)));
}
yaffs_GrossUnlock(dev);
if (link) {
-
return 0;
}
}
static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
+ const char *symname)
{
yaffs_Object *obj;
yaffs_Device *dev;
uid_t uid = YCRED(current)->fsuid;
gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
- T(YAFFS_TRACE_OS, ( "yaffs_symlink\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_symlink\n"));
dev = yaffs_InodeToObject(dir)->myDev;
yaffs_GrossLock(dev);
obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name,
- S_IFLNK | S_IRWXUGO, uid, gid, symname);
+ S_IFLNK | S_IRWXUGO, uid, gid, symname);
yaffs_GrossUnlock(dev);
if (obj) {
-
struct inode *inode;
inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
d_instantiate(dentry, inode);
- T(YAFFS_TRACE_OS, ( "symlink created OK\n"));
+ T(YAFFS_TRACE_OS, ("symlink created OK\n"));
return 0;
} else {
- T(YAFFS_TRACE_OS, ( "symlink not created\n"));
-
+ T(YAFFS_TRACE_OS, ("symlink not created\n"));
}
return -ENOMEM;
}
static int yaffs_sync_object(struct file *file, struct dentry *dentry,
- int datasync)
+ int datasync)
{
yaffs_Object *obj;
dev = obj->myDev;
- T(YAFFS_TRACE_OS, ( "yaffs_sync_object\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_sync_object\n"));
yaffs_GrossLock(dev);
yaffs_FlushFile(obj, 1);
yaffs_GrossUnlock(dev);
int retVal = YAFFS_FAIL;
yaffs_Object *target;
- T(YAFFS_TRACE_OS, ( "yaffs_rename\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_rename\n"));
dev = yaffs_InodeToObject(old_dir)->myDev;
yaffs_GrossLock(dev);
/* Check if the target is an existing directory that is not empty. */
- target =
- yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
- new_dentry->d_name.name);
+ target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
+ new_dentry->d_name.name);
- if (target &&
- target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
- !ylist_empty(&target->variant.directoryVariant.children)) {
+ if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
+ !ylist_empty(&target->variant.directoryVariant.children)) {
- T(YAFFS_TRACE_OS, ( "target is non-empty dir\n"));
+ T(YAFFS_TRACE_OS, ("target is non-empty dir\n"));
retVal = YAFFS_FAIL;
} else {
-
/* Now does unlinking internally using shadowing mechanism */
- T(YAFFS_TRACE_OS, ( "calling yaffs_RenameObject\n"));
-
- retVal =
- yaffs_RenameObject(yaffs_InodeToObject(old_dir),
- old_dentry->d_name.name,
- yaffs_InodeToObject(new_dir),
- new_dentry->d_name.name);
+ T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n"));
+ retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir),
+ old_dentry->d_name.name,
+ yaffs_InodeToObject(new_dir),
+ new_dentry->d_name.name);
}
yaffs_GrossUnlock(dev);
if (retVal == YAFFS_OK) {
- if(target) {
+ if (target) {
new_dentry->d_inode->i_nlink--;
mark_inode_dirty(new_dentry->d_inode);
}
} else {
return -ENOTEMPTY;
}
-
}
static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
yaffs_Device *dev;
T(YAFFS_TRACE_OS,
- ( "yaffs_setattr of object %d\n",
- yaffs_InodeToObject(inode)->objectId));
-
- if ((error = inode_change_ok(inode, attr)) == 0) {
+ ("yaffs_setattr of object %d\n",
+ yaffs_InodeToObject(inode)->objectId));
+ error = inode_change_ok(inode, attr);
+ if (error == 0) {
dev = yaffs_InodeToObject(inode)->myDev;
yaffs_GrossLock(dev);
if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) ==
- YAFFS_OK) {
+ YAFFS_OK) {
error = 0;
} else {
error = -EPERM;
return error;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
struct super_block *sb = dentry->d_sb;
-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf)
{
yaffs_Device *dev = yaffs_SuperToDevice(sb);
yaffs_Device *dev = yaffs_SuperToDevice(sb);
#endif
- T(YAFFS_TRACE_OS, ( "yaffs_statfs\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_statfs\n"));
yaffs_GrossLock(dev);
buf->f_type = YAFFS_MAGIC;
buf->f_bsize = sb->s_blocksize;
buf->f_namelen = 255;
-
- if(dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)){
+
+ if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) {
/* Do this if chunk size is not a power of 2 */
-
+
uint64_t bytesInDev;
uint64_t bytesFree;
- bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock +1))) *
- ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk));
-
- do_div(bytesInDev,sb->s_blocksize); /* bytesInDev becomes the number of blocks */
+ bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) *
+ ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk));
+
+ do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */
buf->f_blocks = bytesInDev;
bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) *
- ((uint64_t)(dev->nDataBytesPerChunk));
-
- do_div(bytesFree,sb->s_blocksize);
-
+ ((uint64_t)(dev->nDataBytesPerChunk));
+
+ do_div(bytesFree, sb->s_blocksize);
+
buf->f_bfree = bytesFree;
-
+
} else if (sb->s_blocksize > dev->nDataBytesPerChunk) {
-
+
buf->f_blocks =
- (dev->endBlock - dev->startBlock + 1) *
- dev->nChunksPerBlock /
- (sb->s_blocksize / dev->nDataBytesPerChunk);
- buf->f_bfree =
- yaffs_GetNumberOfFreeChunks(dev) /
- (sb->s_blocksize / dev->nDataBytesPerChunk);
+ (dev->endBlock - dev->startBlock + 1) *
+ dev->nChunksPerBlock /
+ (sb->s_blocksize / dev->nDataBytesPerChunk);
+ buf->f_bfree =
+ yaffs_GetNumberOfFreeChunks(dev) /
+ (sb->s_blocksize / dev->nDataBytesPerChunk);
} else {
- buf->f_blocks =
- (dev->endBlock - dev->startBlock + 1) *
- dev->nChunksPerBlock *
- (dev->nDataBytesPerChunk / sb->s_blocksize);
-
- buf->f_bfree =
- yaffs_GetNumberOfFreeChunks(dev) *
- (dev->nDataBytesPerChunk / sb->s_blocksize);
+ buf->f_blocks =
+ (dev->endBlock - dev->startBlock + 1) *
+ dev->nChunksPerBlock *
+ (dev->nDataBytesPerChunk / sb->s_blocksize);
+
+ buf->f_bfree =
+ yaffs_GetNumberOfFreeChunks(dev) *
+ (dev->nDataBytesPerChunk / sb->s_blocksize);
}
-
-
+
buf->f_files = 0;
buf->f_ffree = 0;
buf->f_bavail = buf->f_bfree;
{
yaffs_Device *dev = yaffs_SuperToDevice(sb);
- T(YAFFS_TRACE_OS, ( "yaffs_do_sync_fs\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n"));
- if(sb->s_dirt) {
+ if (sb->s_dirt) {
yaffs_GrossLock(dev);
- if(dev){
+ if (dev) {
yaffs_FlushEntireDeviceCache(dev);
yaffs_CheckpointSave(dev);
}
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static void yaffs_write_super(struct super_block *sb)
#else
static int yaffs_write_super(struct super_block *sb)
#endif
{
- T(YAFFS_TRACE_OS, ( "yaffs_write_super\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_write_super\n"));
if (yaffs_auto_checkpoint >= 2)
yaffs_do_sync_fs(sb);
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
- return 0;
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18))
+ return 0;
#endif
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs_sync_fs(struct super_block *sb, int wait)
#else
static int yaffs_sync_fs(struct super_block *sb)
#endif
{
-
- T(YAFFS_TRACE_OS, ( "yaffs_sync_fs\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n"));
if (yaffs_auto_checkpoint >= 1)
yaffs_do_sync_fs(sb);
-
- return 0;
+ return 0;
}
#ifdef YAFFS_USE_OWN_IGET
-static struct inode * yaffs_iget(struct super_block *sb, unsigned long ino)
+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino)
{
struct inode *inode;
yaffs_Object *obj;
yaffs_Device *dev = yaffs_SuperToDevice(sb);
T(YAFFS_TRACE_OS,
- ( "yaffs_iget for %lu\n", ino));
+ ("yaffs_iget for %lu\n", ino));
inode = iget_locked(sb, ino);
if (!inode)
if (!(inode->i_state & I_NEW))
return inode;
- /* NB This is called as a side effect of other functions, but
- * we had to release the lock to prevent deadlocks, so
- * need to lock again.
- */
-
+ /* NB This is called as a side effect of other functions, but
+ * we had to release the lock to prevent deadlocks, so
+ * need to lock again.
+ */
+
yaffs_GrossLock(dev);
obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
yaffs_FillInodeFromObject(inode, obj);
yaffs_GrossUnlock(dev);
-
+
unlock_new_inode(inode);
return inode;
}
yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb);
T(YAFFS_TRACE_OS,
- ( "yaffs_read_inode for %d\n", (int)inode->i_ino));
+ ("yaffs_read_inode for %d\n", (int)inode->i_ino));
yaffs_GrossLock(dev);
static YLIST_HEAD(yaffs_dev_list);
-#if 0 // not used
+#if 0 /* not used */
static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data)
{
yaffs_Device *dev = yaffs_SuperToDevice(sb);
- if( *flags & MS_RDONLY ) {
+ if (*flags & MS_RDONLY) {
struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
T(YAFFS_TRACE_OS,
- ( "yaffs_remount_fs: %s: RO\n", dev->name ));
+ ("yaffs_remount_fs: %s: RO\n", dev->name));
yaffs_GrossLock(dev);
mtd->sync(mtd);
yaffs_GrossUnlock(dev);
- }
- else {
+ } else {
T(YAFFS_TRACE_OS,
- ( "yaffs_remount_fs: %s: RW\n", dev->name ));
+ ("yaffs_remount_fs: %s: RW\n", dev->name));
}
return 0;
{
yaffs_Device *dev = yaffs_SuperToDevice(sb);
- T(YAFFS_TRACE_OS, ( "yaffs_put_super\n"));
+ T(YAFFS_TRACE_OS, ("yaffs_put_super\n"));
yaffs_GrossLock(dev);
yaffs_CheckpointSave(dev);
- if (dev->putSuperFunc) {
+ if (dev->putSuperFunc)
dev->putSuperFunc(sb);
- }
yaffs_Deinitialise(dev);
/* we assume this is protected by lock_kernel() in mount/umount */
ylist_del(&dev->devList);
- if(dev->spareBuffer){
+ if (dev->spareBuffer) {
YFREE(dev->spareBuffer);
dev->spareBuffer = NULL;
}
static void yaffs_MTDPutSuper(struct super_block *sb)
{
-
struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
- if (mtd->sync) {
+ if (mtd->sync)
mtd->sync(mtd);
- }
put_mtd_device(mtd);
}
{
struct super_block *sb = (struct super_block *)vsb;
- T(YAFFS_TRACE_OS, ( "yaffs_MarkSuperBlockDirty() sb = %p\n",sb));
- if(sb)
+ T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb));
+ if (sb)
sb->s_dirt = 1;
}
#define MAX_OPT_LEN 20
static int yaffs_parse_options(yaffs_options *options, const char *options_str)
{
- char cur_opt[MAX_OPT_LEN+1];
+ char cur_opt[MAX_OPT_LEN + 1];
int p;
int error = 0;
/* Parse through the options which is a comma seperated list */
- while(options_str && *options_str && !error){
- memset(cur_opt,0,MAX_OPT_LEN+1);
+ while (options_str && *options_str && !error) {
+ memset(cur_opt, 0, MAX_OPT_LEN + 1);
p = 0;
- while(*options_str && *options_str != ','){
- if(p < MAX_OPT_LEN){
+ while (*options_str && *options_str != ',') {
+ if (p < MAX_OPT_LEN) {
cur_opt[p] = *options_str;
p++;
}
options_str++;
}
- if(!strcmp(cur_opt,"inband-tags"))
+ if (!strcmp(cur_opt, "inband-tags"))
options->inband_tags = 1;
- else if(!strcmp(cur_opt,"no-cache"))
+ else if (!strcmp(cur_opt, "no-cache"))
options->no_cache = 1;
- else if(!strcmp(cur_opt,"no-checkpoint-read"))
+ else if (!strcmp(cur_opt, "no-checkpoint-read"))
options->skip_checkpoint_read = 1;
- else if(!strcmp(cur_opt,"no-checkpoint-write"))
+ else if (!strcmp(cur_opt, "no-checkpoint-write"))
options->skip_checkpoint_write = 1;
- else if(!strcmp(cur_opt,"no-checkpoint")){
+ else if (!strcmp(cur_opt, "no-checkpoint")) {
options->skip_checkpoint_read = 1;
options->skip_checkpoint_write = 1;
} else {
- printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",cur_opt);
+ printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",
+ cur_opt);
error = 1;
}
-
}
return error;
}
static struct super_block *yaffs_internal_read_super(int yaffsVersion,
- struct super_block *sb,
- void *data, int silent)
+ struct super_block *sb,
+ void *data, int silent)
{
int nBlocks;
struct inode *inode = NULL;
sb->s_dev,
yaffs_devname(sb, devname_buf));
- if(!data_str)
+ if (!data_str)
data_str = "";
- printk(KERN_INFO "yaffs: passed flags \"%s\"\n",data_str);
+ printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str);
- memset(&options,0,sizeof(options));
+ memset(&options, 0, sizeof(options));
- if(yaffs_parse_options(&options,data_str)){
+ if (yaffs_parse_options(&options, data_str)) {
/* Option parsing failed */
return NULL;
}
T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd)));
T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize));
T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize));
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
T(YAFFS_TRACE_OS, (" size %u\n", mtd->size));
#else
T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size));
if (yaffsVersion == 1 &&
WRITE_SIZE(mtd) >= 2048) {
- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n"));
+ T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n"));
yaffsVersion = 2;
}
/* Added NCB 26/5/2006 for completeness */
- if (yaffsVersion == 2 &&
+ if (yaffsVersion == 2 &&
!options.inband_tags &&
- WRITE_SIZE(mtd) == 512){
- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n"));
+ WRITE_SIZE(mtd) == 512) {
+ T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n"));
yaffsVersion = 1;
}
!mtd->block_markbad ||
!mtd->read ||
!mtd->write ||
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
!mtd->read_oob || !mtd->write_oob) {
#else
!mtd->write_ecc ||
if (!mtd->erase ||
!mtd->read ||
!mtd->write ||
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
!mtd->read_oob || !mtd->write_oob) {
#else
!mtd->write_ecc ||
* Set the yaffs_Device up for mtd
*/
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
#else
sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
/* Set up the memory size parameters.... */
- nBlocks = YCALCBLOCKS(mtd->size ,(YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
+ nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
dev->startBlock = 0;
dev->endBlock = nBlocks - 1;
dev->queryNANDBlock = nandmtd2_QueryNANDBlock;
dev->spareBuffer = YMALLOC(mtd->oobsize);
dev->isYaffs2 = 1;
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
dev->totalBytesPerChunk = mtd->writesize;
dev->nChunksPerBlock = mtd->erasesize / mtd->writesize;
#else
dev->totalBytesPerChunk = mtd->oobblock;
dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
#endif
- nBlocks = YCALCBLOCKS(mtd->size,mtd->erasesize);
+ nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize);
dev->startBlock = 0;
dev->endBlock = nBlocks - 1;
} else {
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
/* use the MTD interface in yaffs_mtdif1.c */
dev->writeChunkWithTagsToNAND =
nandmtd1_WriteChunkWithTagsToNAND;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
int silent)
{
return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs_read_super(struct file_system_type *fs,
int flags, const char *dev_name,
void *data, struct vfsmount *mnt)
#ifdef CONFIG_YAFFS_YAFFS2
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
int silent)
{
return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs2_read_super(struct file_system_type *fs,
int flags, const char *dev_name, void *data,
struct vfsmount *mnt)
char *end;
char *mask_name;
const char *x;
- char substring[MAX_MASK_NAME_LENGTH+1];
+ char substring[MAX_MASK_NAME_LENGTH + 1];
int i;
int done = 0;
int add, len = 0;
pos += len;
done = 0;
} else {
- for(x = buf + pos, i = 0;
- (*x == '_' || (*x >='a' && *x <= 'z')) &&
- i <MAX_MASK_NAME_LENGTH; x++, i++, pos++)
- substring[i] = *x;
+ for (x = buf + pos, i = 0;
+ (*x == '_' || (*x >= 'a' && *x <= 'z')) &&
+ i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
+ substring[i] = *x;
substring[i] = '\0';
for (i = 0; mask_flags[i].mask_name != NULL; i++) {
- if(strcmp(substring,mask_flags[i].mask_name) == 0){
+ if (strcmp(substring, mask_flags[i].mask_name) == 0) {
mask_name = mask_flags[i].mask_name;
mask_bitfield = mask_flags[i].mask_bitfield;
done = 0;
if (mask_name != NULL) {
done = 0;
- switch(add) {
+ switch (add) {
case '-':
rg &= ~mask_bitfield;
break;
yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS;
- printk("new trace = 0x%08X\n",yaffs_traceMask);
+ printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask);
if (rg & YAFFS_TRACE_ALWAYS) {
for (i = 0; mask_flags[i].mask_name != NULL; i++) {
char flag;
flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-';
- printk("%c%s\n", flag, mask_flags[i].mask_name);
+ printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name);
}
}
};
static struct file_system_to_install fs_to_install[] = {
-//#ifdef CONFIG_YAFFS_YAFFS1
{&yaffs_fs_type, 0},
-//#endif
-//#ifdef CONFIG_YAFFS_YAFFS2
{&yaffs2_fs_type, 0},
-//#endif
{NULL, 0}
};
}
fsinst++;
}
-
}
module_init(init_yaffs_fs)
*/
const char *yaffs_guts_c_version =
- "$Id: yaffs_guts.c,v 1.80 2009-03-05 21:46:46 charles Exp $";
+ "$Id: yaffs_guts.c,v 1.81 2009-03-06 17:20:51 wookey Exp $";
#include "yportenv.h"
#include "yaffs_getblockinfo.h"
#include "yaffs_tagscompat.h"
-#ifndef CONFIG_YAFFS_USE_OWN_SORT
+#ifndef CONFIG_YAFFS_USE_OWN_SORT
#include "yaffs_qsort.h"
#endif
#include "yaffs_nand.h"
/* Robustification (if it ever comes about...) */
-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND);
-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk);
-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
- const __u8 * data,
- const yaffs_ExtendedTags * tags);
-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
- const yaffs_ExtendedTags * tags);
+static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND);
+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND,
+ int erasedOk);
+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
+ const __u8 *data,
+ const yaffs_ExtendedTags *tags);
+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
+ const yaffs_ExtendedTags *tags);
/* Other local prototypes */
-static int yaffs_UnlinkObject( yaffs_Object *obj);
+static int yaffs_UnlinkObject(yaffs_Object *obj);
static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj);
static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList);
-static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device * dev,
- const __u8 * buffer,
- yaffs_ExtendedTags * tags,
- int useReserve);
-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
- int chunkInNAND, int inScan);
-
-static yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number,
- yaffs_ObjectType type);
-static void yaffs_AddObjectToDirectory(yaffs_Object * directory,
- yaffs_Object * obj);
-static int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name,
- int force, int isShrink, int shadows);
-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj);
+static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev,
+ const __u8 *buffer,
+ yaffs_ExtendedTags *tags,
+ int useReserve);
+static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode,
+ int chunkInNAND, int inScan);
+
+static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number,
+ yaffs_ObjectType type);
+static void yaffs_AddObjectToDirectory(yaffs_Object *directory,
+ yaffs_Object *obj);
+static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name,
+ int force, int isShrink, int shadows);
+static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj);
static int yaffs_CheckStructures(void);
-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level,
- int chunkOffset, int *limit);
-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in);
+static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level,
+ int chunkOffset, int *limit);
+static int yaffs_DoGenericObjectDeletion(yaffs_Object *in);
-static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo);
+static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo);
static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
- int chunkInNAND);
+ int chunkInNAND);
-static int yaffs_UnlinkWorker(yaffs_Object * obj);
+static int yaffs_UnlinkWorker(yaffs_Object *obj);
-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId,
- int chunkInObject);
+static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId,
+ int chunkInObject);
-loff_t yaffs_GetFileSize(yaffs_Object * obj);
+loff_t yaffs_GetFileSize(yaffs_Object *obj);
-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr);
+static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve,
+ yaffs_BlockInfo **blockUsedPtr);
-static void yaffs_VerifyFreeChunks(yaffs_Device * dev);
+static void yaffs_VerifyFreeChunks(yaffs_Device *dev);
static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in);
static void yaffs_VerifyDirectory(yaffs_Object *directory);
#ifdef YAFFS_PARANOID
-static int yaffs_CheckFileSanity(yaffs_Object * in);
+static int yaffs_CheckFileSanity(yaffs_Object *in);
#else
#define yaffs_CheckFileSanity(in)
#endif
-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in);
-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId);
+static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in);
+static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId);
static void yaffs_InvalidateCheckpoint(yaffs_Device *dev);
-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode,
- yaffs_ExtendedTags * tags);
+static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode,
+ yaffs_ExtendedTags *tags);
-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos);
-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev,
- yaffs_FileStructure * fStruct,
- __u32 chunkId);
+static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn,
+ unsigned pos);
+static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev,
+ yaffs_FileStructure *fStruct,
+ __u32 chunkId);
/* Function to calculate chunk and offset */
-static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut, __u32 *offsetOut)
+static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut,
+ __u32 *offsetOut)
{
int chunk;
__u32 offset;
-
+
chunk = (__u32)(addr >> dev->chunkShift);
-
- if(dev->chunkDiv == 1)
- {
+
+ if (dev->chunkDiv == 1) {
/* easy power of 2 case */
offset = (__u32)(addr & dev->chunkMask);
- }
- else
- {
+ } else {
/* Non power-of-2 case */
-
+
loff_t chunkBase;
-
+
chunk /= dev->chunkDiv;
-
+
chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk;
offset = (__u32)(addr - chunkBase);
}
*offsetOut = offset;
}
-/* Function to return the number of shifts for a power of 2 greater than or equal
- * to the given number
+/* Function to return the number of shifts for a power of 2 greater than or
+ * equal to the given number
* Note we don't try to cater for all possible numbers and this does not have to
* be hellishly efficient.
*/
-
+
static __u32 ShiftsGE(__u32 x)
{
int extraBits;
int nShifts;
-
+
nShifts = extraBits = 0;
-
- while(x>1){
- if(x & 1) extraBits++;
- x>>=1;
+
+ while (x > 1) {
+ if (x & 1)
+ extraBits++;
+ x >>= 1;
nShifts++;
}
- if(extraBits)
+ if (extraBits)
nShifts++;
-
+
return nShifts;
}
/* Function to return the number of shifts to get a 1 in bit 0
*/
-
+
static __u32 Shifts(__u32 x)
{
int nShifts;
-
+
nShifts = 0;
-
- if(!x) return 0;
-
- while( !(x&1)){
- x>>=1;
+
+ if (!x)
+ return 0;
+
+ while (!(x&1)) {
+ x >>= 1;
nShifts++;
}
-
+
return nShifts;
}
-/*
+/*
* Temporary buffer manipulations.
*/
-static int yaffs_InitialiseTempBuffers(yaffs_Device *dev)
+static int yaffs_InitialiseTempBuffers(yaffs_Device *dev)
{
int i;
__u8 *buf = (__u8 *)1;
-
- memset(dev->tempBuffer,0,sizeof(dev->tempBuffer));
-
+
+ memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer));
+
for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) {
dev->tempBuffer[i].line = 0; /* not in use */
dev->tempBuffer[i].buffer = buf =
YMALLOC_DMA(dev->totalBytesPerChunk);
}
-
+
return buf ? YAFFS_OK : YAFFS_FAIL;
-
}
-__u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo)
+__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo)
{
int i, j;
dev->tempInUse++;
- if(dev->tempInUse > dev->maxTemp)
+ if (dev->tempInUse > dev->maxTemp)
dev->maxTemp = dev->tempInUse;
for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
}
-void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer,
+void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer,
int lineNo)
{
int i;
-
+
dev->tempInUse--;
-
+
for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
if (dev->tempBuffer[i].buffer == buffer) {
dev->tempBuffer[i].line = 0;
/*
* Determine if we have a managed buffer.
*/
-int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer)
+int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer)
{
int i;
+
for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
if (dev->tempBuffer[i].buffer == buffer)
return 1;
-
}
- for (i = 0; i < dev->nShortOpCaches; i++) {
- if( dev->srCache[i].data == buffer )
- return 1;
-
- }
+ for (i = 0; i < dev->nShortOpCaches; i++) {
+ if (dev->srCache[i].data == buffer)
+ return 1;
+ }
- if (buffer == dev->checkpointBuffer)
- return 1;
+ if (buffer == dev->checkpointBuffer)
+ return 1;
- T(YAFFS_TRACE_ALWAYS,
- (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR)));
- return 0;
+ T(YAFFS_TRACE_ALWAYS,
+ (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR)));
+ return 0;
}
* Chunk bitmap manipulations
*/
-static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device * dev, int blk)
+static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk)
{
if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
T(YAFFS_TRACE_ERROR,
- (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
- blk));
+ (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
+ blk));
YBUG();
}
return dev->chunkBits +
- (dev->chunkBitmapStride * (blk - dev->internalStartBlock));
+ (dev->chunkBitmapStride * (blk - dev->internalStartBlock));
}
static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk)
{
- if(blk < dev->internalStartBlock || blk > dev->internalEndBlock ||
- chunk < 0 || chunk >= dev->nChunksPerBlock) {
- T(YAFFS_TRACE_ERROR,
- (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),blk,chunk));
- YBUG();
+ if (blk < dev->internalStartBlock || blk > dev->internalEndBlock ||
+ chunk < 0 || chunk >= dev->nChunksPerBlock) {
+ T(YAFFS_TRACE_ERROR,
+ (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),
+ blk, chunk));
+ YBUG();
}
}
-static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device * dev, int blk)
+static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk)
{
__u8 *blkBits = yaffs_BlockBits(dev, blk);
memset(blkBits, 0, dev->chunkBitmapStride);
}
-static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device * dev, int blk, int chunk)
+static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk)
{
__u8 *blkBits = yaffs_BlockBits(dev, blk);
- yaffs_VerifyChunkBitId(dev,blk,chunk);
+ yaffs_VerifyChunkBitId(dev, blk, chunk);
blkBits[chunk / 8] &= ~(1 << (chunk & 7));
}
-static Y_INLINE void yaffs_SetChunkBit(yaffs_Device * dev, int blk, int chunk)
+static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk)
{
__u8 *blkBits = yaffs_BlockBits(dev, blk);
-
- yaffs_VerifyChunkBitId(dev,blk,chunk);
+
+ yaffs_VerifyChunkBitId(dev, blk, chunk);
blkBits[chunk / 8] |= (1 << (chunk & 7));
}
-static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device * dev, int blk, int chunk)
+static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk)
{
__u8 *blkBits = yaffs_BlockBits(dev, blk);
- yaffs_VerifyChunkBitId(dev,blk,chunk);
+ yaffs_VerifyChunkBitId(dev, blk, chunk);
return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0;
}
-static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device * dev, int blk)
+static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk)
{
__u8 *blkBits = yaffs_BlockBits(dev, blk);
int i;
return 0;
}
-static int yaffs_CountChunkBits(yaffs_Device * dev, int blk)
+static int yaffs_CountChunkBits(yaffs_Device *dev, int blk)
{
__u8 *blkBits = yaffs_BlockBits(dev, blk);
int i;
int n = 0;
for (i = 0; i < dev->chunkBitmapStride; i++) {
__u8 x = *blkBits;
- while(x){
- if(x & 1)
+ while (x) {
+ if (x & 1)
n++;
- x >>=1;
+ x >>= 1;
}
-
+
blkBits++;
}
return n;
}
-/*
+/*
* Verification code
*/
-
+
static int yaffs_SkipVerification(yaffs_Device *dev)
{
return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL));
return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND));
}
-static const char * blockStateName[] = {
+static const char *blockStateName[] = {
"Unknown",
"Needs scanning",
"Scanning",
"Dead"
};
-static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n)
+static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n)
{
int actuallyUsed;
int inUse;
-
- if(yaffs_SkipVerification(dev))
+
+ if (yaffs_SkipVerification(dev))
return;
-
+
/* Report illegal runtime states */
- if(bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has undefined state %d"TENDSTR),n,bi->blockState));
-
- switch(bi->blockState){
- case YAFFS_BLOCK_STATE_UNKNOWN:
- case YAFFS_BLOCK_STATE_SCANNING:
- case YAFFS_BLOCK_STATE_NEEDS_SCANNING:
- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has bad run-state %s"TENDSTR),
- n,blockStateName[bi->blockState]));
+ if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState));
+
+ switch (bi->blockState) {
+ case YAFFS_BLOCK_STATE_UNKNOWN:
+ case YAFFS_BLOCK_STATE_SCANNING:
+ case YAFFS_BLOCK_STATE_NEEDS_SCANNING:
+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR),
+ n, blockStateName[bi->blockState]));
}
-
+
/* Check pages in use and soft deletions are legal */
-
+
actuallyUsed = bi->pagesInUse - bi->softDeletions;
-
- if(bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock ||
+
+ if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock ||
bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock ||
actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock)
- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR),
- n,bi->pagesInUse,bi->softDeletions));
-
-
+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR),
+ n, bi->pagesInUse, bi->softDeletions));
+
+
/* Check chunk bitmap legal */
- inUse = yaffs_CountChunkBits(dev,n);
- if(inUse != bi->pagesInUse)
- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR),
- n,bi->pagesInUse,inUse));
-
+ inUse = yaffs_CountChunkBits(dev, n);
+ if (inUse != bi->pagesInUse)
+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR),
+ n, bi->pagesInUse, inUse));
+
/* Check that the sequence number is valid.
- * Ten million is legal, but is very unlikely
+ * Ten million is legal, but is very unlikely
*/
- if(dev->isYaffs2 &&
+ if (dev->isYaffs2 &&
(bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) &&
- (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000 ))
- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has suspect sequence number of %d"TENDSTR),
- n,bi->sequenceNumber));
-
+ (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000))
+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR),
+ n, bi->sequenceNumber));
}
-static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n)
+static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi,
+ int n)
{
- yaffs_VerifyBlock(dev,bi,n);
-
+ yaffs_VerifyBlock(dev, bi, n);
+
/* After collection the block should be in the erased state */
/* This will need to change if we do partial gc */
-
- if(bi->blockState != YAFFS_BLOCK_STATE_COLLECTING &&
- bi->blockState != YAFFS_BLOCK_STATE_EMPTY){
- T(YAFFS_TRACE_ERROR,(TSTR("Block %d is in state %d after gc, should be erased"TENDSTR),
- n,bi->blockState));
+
+ if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING &&
+ bi->blockState != YAFFS_BLOCK_STATE_EMPTY) {
+ T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR),
+ n, bi->blockState));
}
}
int i;
int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES];
int nIllegalBlockStates = 0;
-
- if(yaffs_SkipVerification(dev))
+ if (yaffs_SkipVerification(dev))
return;
- memset(nBlocksPerState,0,sizeof(nBlocksPerState));
+ memset(nBlocksPerState, 0, sizeof(nBlocksPerState));
-
- for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++){
- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
- yaffs_VerifyBlock(dev,bi,i);
+ for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
+ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
+ yaffs_VerifyBlock(dev, bi, i);
- if(bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
+ if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
nBlocksPerState[bi->blockState]++;
else
nIllegalBlockStates++;
-
}
-
- T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR)));
- T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR)));
-
- T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates));
- if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
- T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR)));
- for(i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
+ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
+ T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR)));
+
+ T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates));
+ if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
+ T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR)));
+
+ for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
T(YAFFS_TRACE_VERIFY,
(TSTR("%s %d blocks"TENDSTR),
- blockStateName[i],nBlocksPerState[i]));
-
- if(dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])
+ blockStateName[i], nBlocksPerState[i]));
+
+ if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])
T(YAFFS_TRACE_VERIFY,
(TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR),
dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]));
-
- if(dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])
+
+ if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])
T(YAFFS_TRACE_VERIFY,
(TSTR("Erased block count wrong dev %d count %d"TENDSTR),
dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]));
-
- if(nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1)
+
+ if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1)
T(YAFFS_TRACE_VERIFY,
(TSTR("Too many collecting blocks %d (max is 1)"TENDSTR),
nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING]));
- T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR)));
+ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
}
*/
static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck)
{
- if(obj && yaffs_SkipVerification(obj->myDev))
+ if (obj && yaffs_SkipVerification(obj->myDev))
return;
-
- if(!(tags && obj && oh)){
- T(YAFFS_TRACE_VERIFY,
- (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR),
- (__u32)tags,(__u32)obj,(__u32)oh));
+
+ if (!(tags && obj && oh)) {
+ T(YAFFS_TRACE_VERIFY,
+ (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR),
+ (__u32)tags, (__u32)obj, (__u32)oh));
return;
}
-
- if(oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
- oh->type > YAFFS_OBJECT_TYPE_MAX)
- T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR),
- tags->objectId, oh->type));
- if(tags->objectId != obj->objectId)
- T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d header mismatch objectId %d"TENDSTR),
- tags->objectId, obj->objectId));
+ if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
+ oh->type > YAFFS_OBJECT_TYPE_MAX)
+ T(YAFFS_TRACE_VERIFY,
+ (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR),
+ tags->objectId, oh->type));
+
+ if (tags->objectId != obj->objectId)
+ T(YAFFS_TRACE_VERIFY,
+ (TSTR("Obj %d header mismatch objectId %d"TENDSTR),
+ tags->objectId, obj->objectId));
/*
* Check that the object's parent ids match if parentCheck requested.
- *
+ *
* Tests do not apply to the root object.
*/
-
- if(parentCheck && tags->objectId > 1 && !obj->parent)
- T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR),
- tags->objectId, oh->parentObjectId));
-
-
- if(parentCheck && obj->parent &&
- oh->parentObjectId != obj->parent->objectId &&
- (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED ||
- obj->parent->objectId != YAFFS_OBJECTID_DELETED))
- T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR),
- tags->objectId, oh->parentObjectId, obj->parent->objectId));
-
-
- if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */
+
+ if (parentCheck && tags->objectId > 1 && !obj->parent)
+ T(YAFFS_TRACE_VERIFY,
+ (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR),
+ tags->objectId, oh->parentObjectId));
+
+ if (parentCheck && obj->parent &&
+ oh->parentObjectId != obj->parent->objectId &&
+ (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED ||
+ obj->parent->objectId != YAFFS_OBJECTID_DELETED))
+ T(YAFFS_TRACE_VERIFY,
+ (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR),
+ tags->objectId, oh->parentObjectId, obj->parent->objectId));
+
+ if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */
T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d header name is NULL"TENDSTR),
- obj->objectId));
+ (TSTR("Obj %d header name is NULL"TENDSTR),
+ obj->objectId));
- if(tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */
+ if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */
T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d header name is 0xFF"TENDSTR),
- obj->objectId));
+ (TSTR("Obj %d header name is 0xFF"TENDSTR),
+ obj->objectId));
}
-static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn,
- __u32 level, int chunkOffset)
+static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn,
+ __u32 level, int chunkOffset)
{
int i;
yaffs_Device *dev = obj->myDev;
if (tn) {
if (level > 0) {
- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){
+ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
if (tn->internal[i]) {
ok = yaffs_VerifyTnodeWorker(obj,
tn->internal[i],
} else if (level == 0) {
yaffs_ExtendedTags tags;
__u32 objectId = obj->objectId;
-
+
chunkOffset <<= YAFFS_TNODES_LEVEL0_BITS;
-
- for(i = 0; i < YAFFS_NTNODES_LEVEL0; i++){
- __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
-
- if(theChunk > 0){
+
+ for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) {
+ __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
+
+ if (theChunk > 0) {
/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */
- yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags);
- if(tags.objectId != objectId || tags.chunkId != chunkOffset){
- T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
+ yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags);
+ if (tags.objectId != objectId || tags.chunkId != chunkOffset) {
+ T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
objectId, chunkOffset, theChunk,
tags.objectId, tags.chunkId));
}
yaffs_ExtendedTags tags;
yaffs_Tnode *tn;
__u32 objectId;
-
- if(!obj)
+
+ if (!obj)
return;
- if(yaffs_SkipVerification(obj->myDev))
+ if (yaffs_SkipVerification(obj->myDev))
return;
-
+
dev = obj->myDev;
objectId = obj->objectId;
-
+
/* Check file size is consistent with tnode depth */
lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1;
x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS;
requiredTallness = 0;
- while (x> 0) {
+ while (x > 0) {
x >>= YAFFS_TNODES_INTERNAL_BITS;
requiredTallness++;
}
-
+
actualTallness = obj->variant.fileVariant.topLevel;
-
- if(requiredTallness > actualTallness )
+
+ if (requiredTallness > actualTallness)
T(YAFFS_TRACE_VERIFY,
(TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR),
- obj->objectId,actualTallness, requiredTallness));
-
-
- /* Check that the chunks in the tnode tree are all correct.
+ obj->objectId, actualTallness, requiredTallness));
+
+
+ /* Check that the chunks in the tnode tree are all correct.
* We do this by scanning through the tnode tree and
* checking the tags for every chunk match.
*/
- if(yaffs_SkipNANDVerification(dev))
+ if (yaffs_SkipNANDVerification(dev))
return;
-
- for(i = 1; i <= lastChunk; i++){
- tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant,i);
+
+ for (i = 1; i <= lastChunk; i++) {
+ tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i);
if (tn) {
- __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
- if(theChunk > 0){
+ __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
+ if (theChunk > 0) {
/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */
- yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags);
- if(tags.objectId != objectId || tags.chunkId != i){
- T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
+ yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags);
+ if (tags.objectId != objectId || tags.chunkId != i) {
+ T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
objectId, i, theChunk,
tags.objectId, tags.chunkId));
}
}
}
-
}
-
}
static void yaffs_VerifyHardLink(yaffs_Object *obj)
{
- if(obj && yaffs_SkipVerification(obj->myDev))
+ if (obj && yaffs_SkipVerification(obj->myDev))
return;
-
+
/* Verify sane equivalent object */
}
static void yaffs_VerifySymlink(yaffs_Object *obj)
{
- if(obj && yaffs_SkipVerification(obj->myDev))
+ if (obj && yaffs_SkipVerification(obj->myDev))
return;
-
+
/* Verify symlink string */
}
static void yaffs_VerifySpecial(yaffs_Object *obj)
{
- if(obj && yaffs_SkipVerification(obj->myDev))
+ if (obj && yaffs_SkipVerification(obj->myDev))
return;
}
static void yaffs_VerifyObject(yaffs_Object *obj)
{
yaffs_Device *dev;
-
+
__u32 chunkMin;
__u32 chunkMax;
-
+
__u32 chunkIdOk;
__u32 chunkInRange;
__u32 chunkShouldNotBeDeleted;
- __u32 chunkValid;
-
- if(!obj)
+ __u32 chunkValid;
+
+ if (!obj)
return;
-
- if(obj->beingCreated)
+
+ if (obj->beingCreated)
return;
-
+
dev = obj->myDev;
-
- if(yaffs_SkipVerification(dev))
+
+ if (yaffs_SkipVerification(dev))
return;
-
+
/* Check sane object header chunk */
chunkMin = dev->internalStartBlock * dev->nChunksPerBlock;
chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax);
chunkIdOk = chunkInRange || obj->hdrChunk == 0;
- chunkValid = chunkInRange &&
+ chunkValid = chunkInRange &&
yaffs_CheckChunkBit(dev,
- obj->hdrChunk / dev->nChunksPerBlock,
- obj->hdrChunk % dev->nChunksPerBlock);
+ obj->hdrChunk / dev->nChunksPerBlock,
+ obj->hdrChunk % dev->nChunksPerBlock);
chunkShouldNotBeDeleted = chunkInRange && !chunkValid;
- if(!obj->fake &&
- (!chunkIdOk || chunkShouldNotBeDeleted)) {
- T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
- obj->objectId,obj->hdrChunk,
- chunkIdOk ? "" : ",out of range",
- chunkShouldNotBeDeleted ? ",marked as deleted" : ""));
+ if (!obj->fake &&
+ (!chunkIdOk || chunkShouldNotBeDeleted)) {
+ T(YAFFS_TRACE_VERIFY,
+ (TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
+ obj->objectId, obj->hdrChunk,
+ chunkIdOk ? "" : ",out of range",
+ chunkShouldNotBeDeleted ? ",marked as deleted" : ""));
}
-
- if(chunkValid &&!yaffs_SkipNANDVerification(dev)) {
+
+ if (chunkValid && !yaffs_SkipNANDVerification(dev)) {
yaffs_ExtendedTags tags;
yaffs_ObjectHeader *oh;
- __u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__);
-
+ __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
+
oh = (yaffs_ObjectHeader *)buffer;
- yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk,buffer, &tags);
+ yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer,
+ &tags);
+
+ yaffs_VerifyObjectHeader(obj, oh, &tags, 1);
- yaffs_VerifyObjectHeader(obj,oh,&tags,1);
-
- yaffs_ReleaseTempBuffer(dev,buffer,__LINE__);
+ yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
}
-
+
/* Verify it has a parent */
- if(obj && !obj->fake &&
- (!obj->parent || obj->parent->myDev != dev)){
- T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR),
- obj->objectId,obj->parent));
+ if (obj && !obj->fake &&
+ (!obj->parent || obj->parent->myDev != dev)) {
+ T(YAFFS_TRACE_VERIFY,
+ (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR),
+ obj->objectId, obj->parent));
}
-
+
/* Verify parent is a directory */
- if(obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){
- T(YAFFS_TRACE_VERIFY,
- (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR),
- obj->objectId,obj->parent->variantType));
+ if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ T(YAFFS_TRACE_VERIFY,
+ (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR),
+ obj->objectId, obj->parent->variantType));
}
-
- switch(obj->variantType){
+
+ switch (obj->variantType) {
case YAFFS_OBJECT_TYPE_FILE:
yaffs_VerifyFile(obj);
break;
default:
T(YAFFS_TRACE_VERIFY,
(TSTR("Obj %d has illegaltype %d"TENDSTR),
- obj->objectId,obj->variantType));
+ obj->objectId, obj->variantType));
break;
}
-
-
}
static void yaffs_VerifyObjects(yaffs_Device *dev)
{
- yaffs_Object *obj;
- int i;
- struct ylist_head *lh;
+ yaffs_Object *obj;
+ int i;
+ struct ylist_head *lh;
- if(yaffs_SkipVerification(dev))
- return;
-
- /* Iterate through the objects in each hash entry */
-
- for(i = 0; i < YAFFS_NOBJECT_BUCKETS; i++){
- ylist_for_each(lh, &dev->objectBucket[i].list) {
- if (lh) {
- obj = ylist_entry(lh, yaffs_Object, hashLink);
- yaffs_VerifyObject(obj);
- }
- }
- }
+ if (yaffs_SkipVerification(dev))
+ return;
+
+ /* Iterate through the objects in each hash entry */
+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
+ ylist_for_each(lh, &dev->objectBucket[i].list) {
+ if (lh) {
+ obj = ylist_entry(lh, yaffs_Object, hashLink);
+ yaffs_VerifyObject(obj);
+ }
+ }
+ }
}
/*
* Simple hash function. Needs to have a reasonable spread
*/
-
+
static Y_INLINE int yaffs_HashFunction(int n)
{
n = abs(n);
- return (n % YAFFS_NOBJECT_BUCKETS);
+ return n % YAFFS_NOBJECT_BUCKETS;
}
/*
* Access functions to useful fake objects.
* Note that root might have a presence in NAND if permissions are set.
*/
-
-yaffs_Object *yaffs_Root(yaffs_Device * dev)
+
+yaffs_Object *yaffs_Root(yaffs_Device *dev)
{
return dev->rootDir;
}
-yaffs_Object *yaffs_LostNFound(yaffs_Device * dev)
+yaffs_Object *yaffs_LostNFound(yaffs_Device *dev)
{
return dev->lostNFoundDir;
}
/*
* Erased NAND checking functions
*/
-
-int yaffs_CheckFF(__u8 * buffer, int nBytes)
+
+int yaffs_CheckFF(__u8 *buffer, int nBytes)
{
/* Horrible, slow implementation */
while (nBytes--) {
}
static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
- int chunkInNAND)
+ int chunkInNAND)
{
-
int retval = YAFFS_OK;
__u8 *data = yaffs_GetTempBuffer(dev, __LINE__);
yaffs_ExtendedTags tags;
int result;
result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags);
-
- if(tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR)
+
+ if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR)
retval = YAFFS_FAIL;
-
if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) {
T(YAFFS_TRACE_NANDACCESS,
}
static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
- const __u8 * data,
- yaffs_ExtendedTags * tags,
- int useReserve)
+ const __u8 *data,
+ yaffs_ExtendedTags *tags,
+ int useReserve)
{
int attempts = 0;
int writeOk = 0;
/* Copy the data into the robustification buffer */
yaffs_HandleWriteChunkOk(dev, chunk, data, tags);
- } while (writeOk != YAFFS_OK &&
- (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts));
-
- if(!writeOk)
+ } while (writeOk != YAFFS_OK &&
+ (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts));
+
+ if (!writeOk)
chunk = -1;
if (attempts > 1) {
/*
* Block retiring for handling a broken block.
*/
-
-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND)
+
+static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND)
{
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
yaffs_InvalidateCheckpoint(dev);
-
+
if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) {
if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) {
T(YAFFS_TRACE_ALWAYS, (TSTR(
"yaffs: Failed to mark bad and erase block %d"
TENDSTR), blockInNAND));
- }
- else {
+ } else {
yaffs_ExtendedTags tags;
int chunkId = blockInNAND * dev->nChunksPerBlock;
yaffs_InitialiseTags(&tags);
tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK;
if (dev->writeChunkWithTagsToNAND(dev, chunkId -
- dev->chunkOffset, buffer, &tags) != YAFFS_OK)
+ dev->chunkOffset, buffer, &tags) != YAFFS_OK)
T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to "
TCONT("write bad block marker to block %d")
TENDSTR), blockInNAND));
* Functions for robustisizing TODO
*
*/
-
-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
- const __u8 * data,
- const yaffs_ExtendedTags * tags)
+
+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
+ const __u8 *data,
+ const yaffs_ExtendedTags *tags)
{
}
-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
- const yaffs_ExtendedTags * tags)
+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
+ const yaffs_ExtendedTags *tags)
{
}
void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi)
{
- if(!bi->gcPrioritise){
+ if (!bi->gcPrioritise) {
bi->gcPrioritise = 1;
dev->hasPendingPrioritisedGCs = 1;
- bi->chunkErrorStrikes ++;
-
- if(bi->chunkErrorStrikes > 3){
+ bi->chunkErrorStrikes++;
+
+ if (bi->chunkErrorStrikes > 3) {
bi->needsRetiring = 1; /* Too many stikes, so retire this */
T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR)));
}
-
}
}
-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk)
+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND,
+ int erasedOk)
{
-
int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
- yaffs_HandleChunkError(dev,bi);
-
-
- if(erasedOk ) {
+ yaffs_HandleChunkError(dev, bi);
+
+ if (erasedOk) {
/* Was an actual write failure, so mark the block for retirement */
bi->needsRetiring = 1;
T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
(TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND));
-
-
}
-
+
/* Delete the chunk */
yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
}
-/*---------------- Name handling functions ------------*/
+/*---------------- Name handling functions ------------*/
-static __u16 yaffs_CalcNameSum(const YCHAR * name)
+static __u16 yaffs_CalcNameSum(const YCHAR *name)
{
__u16 sum = 0;
__u16 i = 1;
return sum;
}
-static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name)
+static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name)
{
#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
- memset(obj->shortName,0,sizeof (YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1));
+ memset(obj->shortName, 0, sizeof (YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1));
if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) {
yaffs_strcpy(obj->shortName, name);
} else {
* The list is hooked together using the first pointer
* in the tnode.
*/
-
+
/* yaffs_CreateTnodes creates a bunch more tnodes and
* adds them to the tnode free list.
* Don't use this function directly
*/
-static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes)
+static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes)
{
int i;
int tnodeSize;
if (nTnodes < 1)
return YAFFS_OK;
-
+
/* Calculate the tnode size in bytes for variable width tnode support.
* Must be a multiple of 32-bits */
tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
- if(tnodeSize < sizeof(yaffs_Tnode))
+ if (tnodeSize < sizeof(yaffs_Tnode))
tnodeSize = sizeof(yaffs_Tnode);
-
/* make these things */
if (!newTnodes) {
T(YAFFS_TRACE_ERROR,
- (TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
+ (TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
return YAFFS_FAIL;
}
dev->freeTnodes = newTnodes;
#else
/* New hookup for wide tnodes */
- for(i = 0; i < nTnodes -1; i++) {
+ for (i = 0; i < nTnodes - 1; i++) {
curr = (yaffs_Tnode *) &mem[i * tnodeSize];
next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize];
curr->internal[0] = next;
}
-
+
curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize];
curr->internal[0] = dev->freeTnodes;
dev->freeTnodes = (yaffs_Tnode *)mem;
* NB If we can't add this to the management list it isn't fatal
* but it just means we can't free this bunch of tnodes later.
*/
-
+
tnl = YMALLOC(sizeof(yaffs_TnodeList));
if (!tnl) {
T(YAFFS_TRACE_ERROR,
(TSTR
("yaffs: Could not add tnodes to management list" TENDSTR)));
return YAFFS_FAIL;
-
} else {
tnl->tnodes = newTnodes;
tnl->next = dev->allocatedTnodeList;
/* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */
-static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev)
+static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev)
{
yaffs_Tnode *tn = NULL;
return tn;
}
-static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev)
+static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev)
{
yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev);
int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
- if(tnodeSize < sizeof(yaffs_Tnode))
+ if (tnodeSize < sizeof(yaffs_Tnode))
tnodeSize = sizeof(yaffs_Tnode);
-
- if(tn)
+
+ if (tn)
memset(tn, 0, tnodeSize);
- return tn;
+ return tn;
}
/* FreeTnode frees up a tnode and puts it back on the free list */
-static void yaffs_FreeTnode(yaffs_Device * dev, yaffs_Tnode * tn)
+static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn)
{
if (tn) {
#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
dev->nFreeTnodes++;
}
dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
-
}
-static void yaffs_DeinitialiseTnodes(yaffs_Device * dev)
+static void yaffs_DeinitialiseTnodes(yaffs_Device *dev)
{
/* Free the list of allocated tnodes */
yaffs_TnodeList *tmp;
dev->nFreeTnodes = 0;
}
-static void yaffs_InitialiseTnodes(yaffs_Device * dev)
+static void yaffs_InitialiseTnodes(yaffs_Device *dev)
{
dev->allocatedTnodeList = NULL;
dev->freeTnodes = NULL;
dev->nFreeTnodes = 0;
dev->nTnodesCreated = 0;
+}
+
+
+void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos,
+ unsigned val)
+{
+ __u32 *map = (__u32 *)tn;
+ __u32 bitInMap;
+ __u32 bitInWord;
+ __u32 wordInMap;
+ __u32 mask;
+
+ pos &= YAFFS_TNODES_LEVEL0_MASK;
+ val >>= dev->chunkGroupBits;
+
+ bitInMap = pos * dev->tnodeWidth;
+ wordInMap = bitInMap / 32;
+ bitInWord = bitInMap & (32 - 1);
+ mask = dev->tnodeMask << bitInWord;
+
+ map[wordInMap] &= ~mask;
+ map[wordInMap] |= (mask & (val << bitInWord));
+
+ if (dev->tnodeWidth > (32 - bitInWord)) {
+ bitInWord = (32 - bitInWord);
+ wordInMap++;;
+ mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord);
+ map[wordInMap] &= ~mask;
+ map[wordInMap] |= (mask & (val >> bitInWord));
+ }
}
+static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn,
+ unsigned pos)
+{
+ __u32 *map = (__u32 *)tn;
+ __u32 bitInMap;
+ __u32 bitInWord;
+ __u32 wordInMap;
+ __u32 val;
+
+ pos &= YAFFS_TNODES_LEVEL0_MASK;
+
+ bitInMap = pos * dev->tnodeWidth;
+ wordInMap = bitInMap / 32;
+ bitInWord = bitInMap & (32 - 1);
-void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsigned val)
-{
- __u32 *map = (__u32 *)tn;
- __u32 bitInMap;
- __u32 bitInWord;
- __u32 wordInMap;
- __u32 mask;
-
- pos &= YAFFS_TNODES_LEVEL0_MASK;
- val >>= dev->chunkGroupBits;
-
- bitInMap = pos * dev->tnodeWidth;
- wordInMap = bitInMap /32;
- bitInWord = bitInMap & (32 -1);
-
- mask = dev->tnodeMask << bitInWord;
-
- map[wordInMap] &= ~mask;
- map[wordInMap] |= (mask & (val << bitInWord));
-
- if(dev->tnodeWidth > (32-bitInWord)) {
- bitInWord = (32 - bitInWord);
- wordInMap++;;
- mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord);
- map[wordInMap] &= ~mask;
- map[wordInMap] |= (mask & (val >> bitInWord));
- }
-}
-
-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos)
-{
- __u32 *map = (__u32 *)tn;
- __u32 bitInMap;
- __u32 bitInWord;
- __u32 wordInMap;
- __u32 val;
-
- pos &= YAFFS_TNODES_LEVEL0_MASK;
-
- bitInMap = pos * dev->tnodeWidth;
- wordInMap = bitInMap /32;
- bitInWord = bitInMap & (32 -1);
-
- val = map[wordInMap] >> bitInWord;
-
- if(dev->tnodeWidth > (32-bitInWord)) {
- bitInWord = (32 - bitInWord);
- wordInMap++;;
- val |= (map[wordInMap] << bitInWord);
- }
-
- val &= dev->tnodeMask;
- val <<= dev->chunkGroupBits;
-
- return val;
+ val = map[wordInMap] >> bitInWord;
+
+ if (dev->tnodeWidth > (32 - bitInWord)) {
+ bitInWord = (32 - bitInWord);
+ wordInMap++;;
+ val |= (map[wordInMap] << bitInWord);
+ }
+
+ val &= dev->tnodeMask;
+ val <<= dev->chunkGroupBits;
+
+ return val;
}
/* ------------------- End of individual tnode manipulation -----------------*/
*/
/* FindLevel0Tnode finds the level 0 tnode, if one exists. */
-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev,
- yaffs_FileStructure * fStruct,
- __u32 chunkId)
+static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev,
+ yaffs_FileStructure *fStruct,
+ __u32 chunkId)
{
-
yaffs_Tnode *tn = fStruct->top;
__u32 i;
int requiredTallness;
/* Traverse down to level 0 */
while (level > 0 && tn) {
- tn = tn->
- internal[(chunkId >>
- ( YAFFS_TNODES_LEVEL0_BITS +
- (level - 1) *
- YAFFS_TNODES_INTERNAL_BITS)
- ) &
- YAFFS_TNODES_INTERNAL_MASK];
+ tn = tn->internal[(chunkId >>
+ (YAFFS_TNODES_LEVEL0_BITS +
+ (level - 1) *
+ YAFFS_TNODES_INTERNAL_BITS)) &
+ YAFFS_TNODES_INTERNAL_MASK];
level--;
-
}
return tn;
* If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will
* be plugged into the ttree.
*/
-
-static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev,
- yaffs_FileStructure * fStruct,
- __u32 chunkId,
- yaffs_Tnode *passedTn)
-{
+static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev,
+ yaffs_FileStructure *fStruct,
+ __u32 chunkId,
+ yaffs_Tnode *passedTn)
+{
int requiredTallness;
int i;
int l;
if (requiredTallness > fStruct->topLevel) {
- /* Not tall enough,gotta make the tree taller */
+ /* Not tall enough, gotta make the tree taller */
for (i = fStruct->topLevel; i < requiredTallness; i++) {
-
+
tn = yaffs_GetTnode(dev);
if (tn) {
l = fStruct->topLevel;
tn = fStruct->top;
-
- if(l > 0) {
+
+ if (l > 0) {
while (l > 0 && tn) {
x = (chunkId >>
- ( YAFFS_TNODES_LEVEL0_BITS +
+ (YAFFS_TNODES_LEVEL0_BITS +
(l - 1) * YAFFS_TNODES_INTERNAL_BITS)) &
YAFFS_TNODES_INTERNAL_MASK;
- if((l>1) && !tn->internal[x]){
+ if ((l > 1) && !tn->internal[x]) {
/* Add missing non-level-zero tnode */
tn->internal[x] = yaffs_GetTnode(dev);
- } else if(l == 1) {
+ } else if (l == 1) {
/* Looking from level 1 at level 0 */
- if (passedTn) {
+ if (passedTn) {
/* If we already have one, then release it.*/
- if(tn->internal[x])
- yaffs_FreeTnode(dev,tn->internal[x]);
+ if (tn->internal[x])
+ yaffs_FreeTnode(dev, tn->internal[x]);
tn->internal[x] = passedTn;
-
- } else if(!tn->internal[x]) {
+
+ } else if (!tn->internal[x]) {
/* Don't have one, none passed in */
tn->internal[x] = yaffs_GetTnode(dev);
}
}
-
+
tn = tn->internal[x];
l--;
}
} else {
/* top is level 0 */
- if(passedTn) {
- memcpy(tn,passedTn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
- yaffs_FreeTnode(dev,passedTn);
+ if (passedTn) {
+ memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
+ yaffs_FreeTnode(dev, passedTn);
}
}
return tn;
}
-static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk,
- yaffs_ExtendedTags * tags, int objectId,
- int chunkInInode)
+static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk,
+ yaffs_ExtendedTags *tags, int objectId,
+ int chunkInInode)
{
int j;
for (j = 0; theChunk && j < dev->chunkGroupSize; j++) {
- if (yaffs_CheckChunkBit
- (dev, theChunk / dev->nChunksPerBlock,
- theChunk % dev->nChunksPerBlock)) {
+ if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock,
+ theChunk % dev->nChunksPerBlock)) {
yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL,
tags);
if (yaffs_TagsMatch(tags, objectId, chunkInInode)) {
/* found it; */
return theChunk;
-
}
}
theChunk++;
/* DeleteWorker scans backwards through the tnode tree and deletes all the
* chunks and tnodes in the file
- * Returns 1 if the tree was deleted.
+ * Returns 1 if the tree was deleted.
* Returns 0 if it stopped early due to hitting the limit and the delete is incomplete.
*/
-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level,
+static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level,
int chunkOffset, int *limit)
{
int i;
if (tn) {
if (level > 0) {
-
for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
i--) {
if (tn->internal[i]) {
allDone = 0;
} else {
allDone =
- yaffs_DeleteWorker(in,
- tn->
- internal
- [i],
- level -
- 1,
- (chunkOffset
+ yaffs_DeleteWorker(in,
+ tn->
+ internal
+ [i],
+ level -
+ 1,
+ (chunkOffset
<<
YAFFS_TNODES_INTERNAL_BITS)
- + i,
- limit);
+ + i,
+ limit);
}
if (allDone) {
yaffs_FreeTnode(dev,
tn->internal[i] = NULL;
}
}
-
}
return (allDone) ? 1 : 0;
} else if (level == 0) {
int hitLimit = 0;
for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit;
- i--) {
- theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
+ i--) {
+ theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
if (theChunk) {
- chunkInInode =
- (chunkOffset <<
- YAFFS_TNODES_LEVEL0_BITS) + i;
+ chunkInInode = (chunkOffset <<
+ YAFFS_TNODES_LEVEL0_BITS) + i;
foundChunk =
- yaffs_FindChunkInGroup(dev,
- theChunk,
- &tags,
- in->objectId,
- chunkInInode);
+ yaffs_FindChunkInGroup(dev,
+ theChunk,
+ &tags,
+ in->objectId,
+ chunkInInode);
if (foundChunk > 0) {
yaffs_DeleteChunk(dev,
}
- yaffs_PutLevel0Tnode(dev,tn,i,0);
+ yaffs_PutLevel0Tnode(dev, tn, i, 0);
}
}
}
-static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk)
+static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk)
{
-
yaffs_BlockInfo *theBlock;
T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk));
* of the tnode.
* Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted.
*/
-
-static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn,
+
+static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn,
__u32 level, int chunkOffset)
{
int i;
} else if (level == 0) {
for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) {
- theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
+ theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
if (theChunk) {
/* Note this does not find the real chunk, only the chunk group.
- * We make an assumption that a chunk group is not larger than
+ * We make an assumption that a chunk group is not larger than
* a block.
*/
yaffs_SoftDeleteChunk(dev, theChunk);
- yaffs_PutLevel0Tnode(dev,tn,i,0);
+ yaffs_PutLevel0Tnode(dev, tn, i, 0);
}
}
}
-static void yaffs_SoftDeleteFile(yaffs_Object * obj)
+static void yaffs_SoftDeleteFile(yaffs_Object *obj)
{
if (obj->deleted &&
obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) {
* by a special case.
*/
-static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device * dev, yaffs_Tnode * tn,
- __u32 level, int del0)
+static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn,
+ __u32 level, int del0)
{
int i;
int hasData;
}
-static int yaffs_PruneFileStructure(yaffs_Device * dev,
- yaffs_FileStructure * fStruct)
+static int yaffs_PruneFileStructure(yaffs_Device *dev,
+ yaffs_FileStructure *fStruct)
{
int i;
int hasData;
/* Now we have a tree with all the non-zero branches NULL but the height
* is the same as it was.
* Let's see if we can trim internal tnodes to shorten the tree.
- * We can do this if only the 0th element in the tnode is in use
+ * We can do this if only the 0th element in the tnode is in use
* (ie all the non-zero are NULL)
*/
/* yaffs_CreateFreeObjects creates a bunch more objects and
* adds them to the object free list.
*/
-static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects)
+static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects)
{
int i;
yaffs_Object *newObjects;
list = YMALLOC(sizeof(yaffs_ObjectList));
if (!newObjects || !list) {
- if(newObjects)
+ if (newObjects)
YFREE(newObjects);
- if(list)
+ if (list)
YFREE(list);
T(YAFFS_TRACE_ALLOCATE,
(TSTR("yaffs: Could not allocate more objects" TENDSTR)));
return YAFFS_FAIL;
}
-
- /* Hook them into the free list */
- for (i = 0; i < nObjects - 1; i++) {
- newObjects[i].siblings.next =
- (struct ylist_head *)(&newObjects[i + 1]);
- }
- newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects;
+ /* Hook them into the free list */
+ for (i = 0; i < nObjects - 1; i++) {
+ newObjects[i].siblings.next =
+ (struct ylist_head *)(&newObjects[i + 1]);
+ }
+
+ newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects;
dev->freeObjects = newObjects;
dev->nFreeObjects += nObjects;
dev->nObjectsCreated += nObjects;
/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */
-static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev)
+static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev)
{
yaffs_Object *tn = NULL;
if (dev->freeObjects) {
tn = dev->freeObjects;
dev->freeObjects =
- (yaffs_Object *) (dev->freeObjects->siblings.next);
+ (yaffs_Object *) (dev->freeObjects->siblings.next);
dev->nFreeObjects--;
}
#endif
- if(tn){
+ if (tn) {
/* Now sweeten it up... */
memset(tn, 0, sizeof(yaffs_Object));
tn->beingCreated = 1;
-
+
tn->myDev = dev;
tn->hdrChunk = 0;
tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN;
YINIT_LIST_HEAD(&(tn->hardLinks));
YINIT_LIST_HEAD(&(tn->hashLink));
YINIT_LIST_HEAD(&tn->siblings);
-
+
/* Now make the directory sane */
- if(dev->rootDir){
+ if (dev->rootDir) {
tn->parent = dev->rootDir;
- ylist_add(&(tn->siblings),&dev->rootDir->variant.directoryVariant.children);
+ ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children);
}
- /* Add it to the lost and found directory.
- * NB Can't put root or lostNFound in lostNFound so
+ /* Add it to the lost and found directory.
+ * NB Can't put root or lostNFound in lostNFound so
* check if lostNFound exists first
*/
if (dev->lostNFoundDir) {
yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn);
}
-
+
tn->beingCreated = 0;
}
-
+
dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
return tn;
}
-static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device * dev, int number,
+static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number,
__u32 mode)
{
}
-static void yaffs_UnhashObject(yaffs_Object * tn)
+static void yaffs_UnhashObject(yaffs_Object *tn)
{
int bucket;
- yaffs_Device *dev = tn->myDev;
-
- /* If it is still linked into the bucket list, free from the list */
- if (!ylist_empty(&tn->hashLink)) {
- ylist_del_init(&tn->hashLink);
- bucket = yaffs_HashFunction(tn->objectId);
- dev->objectBucket[bucket].count--;
- }
+ yaffs_Device *dev = tn->myDev;
+ /* If it is still linked into the bucket list, free from the list */
+ if (!ylist_empty(&tn->hashLink)) {
+ ylist_del_init(&tn->hashLink);
+ bucket = yaffs_HashFunction(tn->objectId);
+ dev->objectBucket[bucket].count--;
+ }
}
/* FreeObject frees up a Object and puts it back on the free list */
-static void yaffs_FreeObject(yaffs_Object * tn)
+static void yaffs_FreeObject(yaffs_Object *tn)
{
-
yaffs_Device *dev = tn->myDev;
#ifdef __KERNEL__
if(tn->parent)
YBUG();
- if(!ylist_empty(&tn->siblings))
+ if (!ylist_empty(&tn->siblings))
YBUG();
-#ifdef __KERNEL__
+#ifdef __KERNEL__
if (tn->myInode) {
/* We're still hooked up to a cached inode.
* Don't delete now, but mark for later deletion
}
#endif
- yaffs_UnhashObject(tn);
+ yaffs_UnhashObject(tn);
#ifdef VALGRIND_TEST
YFREE(tn);
#else
- /* Link into the free list. */
- tn->siblings.next = (struct ylist_head *)(dev->freeObjects);
- dev->freeObjects = tn;
- dev->nFreeObjects++;
+ /* Link into the free list. */
+ tn->siblings.next = (struct ylist_head *)(dev->freeObjects);
+ dev->freeObjects = tn;
+ dev->nFreeObjects++;
#endif
dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
-
}
#ifdef __KERNEL__
-void yaffs_HandleDeferedFree(yaffs_Object * obj)
+void yaffs_HandleDeferedFree(yaffs_Object *obj)
{
if (obj->deferedFree) {
yaffs_FreeObject(obj);
#endif
-static void yaffs_DeinitialiseObjects(yaffs_Device * dev)
+static void yaffs_DeinitialiseObjects(yaffs_Device *dev)
{
/* Free the list of allocated Objects */
dev->nFreeObjects = 0;
}
-static void yaffs_InitialiseObjects(yaffs_Device * dev)
+static void yaffs_InitialiseObjects(yaffs_Device *dev)
{
int i;
dev->allocatedObjectList = NULL;
dev->freeObjects = NULL;
- dev->nFreeObjects = 0;
-
- for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
- YINIT_LIST_HEAD(&dev->objectBucket[i].list);
- dev->objectBucket[i].count = 0;
- }
+ dev->nFreeObjects = 0;
+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
+ YINIT_LIST_HEAD(&dev->objectBucket[i].list);
+ dev->objectBucket[i].count = 0;
+ }
}
-static int yaffs_FindNiceObjectBucket(yaffs_Device * dev)
+static int yaffs_FindNiceObjectBucket(yaffs_Device *dev)
{
- static int x = 0;
+ static int x;
int i;
int l = 999;
int lowest = 999999;
return l;
}
-static int yaffs_CreateNewObjectNumber(yaffs_Device * dev)
+static int yaffs_CreateNewObjectNumber(yaffs_Device *dev)
{
int bucket = yaffs_FindNiceObjectBucket(dev);
/* Now find an object value that has not already been taken
* by scanning the list.
- */
+ */
- int found = 0;
- struct ylist_head *i;
+ int found = 0;
+ struct ylist_head *i;
- __u32 n = (__u32) bucket;
+ __u32 n = (__u32) bucket;
/* yaffs_CheckObjectHashSanity(); */
while (!found) {
- found = 1;
- n += YAFFS_NOBJECT_BUCKETS;
- if (1 || dev->objectBucket[bucket].count > 0) {
- ylist_for_each(i, &dev->objectBucket[bucket].list) {
- /* If there is already one in the list */
- if (i
- && ylist_entry(i, yaffs_Object,
- hashLink)->objectId == n) {
- found = 0;
- }
+ found = 1;
+ n += YAFFS_NOBJECT_BUCKETS;
+ if (1 || dev->objectBucket[bucket].count > 0) {
+ ylist_for_each(i, &dev->objectBucket[bucket].list) {
+ /* If there is already one in the list */
+ if (i && ylist_entry(i, yaffs_Object,
+ hashLink)->objectId == n) {
+ found = 0;
+ }
}
}
}
-
return n;
}
-static void yaffs_HashObject(yaffs_Object * in)
+static void yaffs_HashObject(yaffs_Object *in)
{
- int bucket = yaffs_HashFunction(in->objectId);
- yaffs_Device *dev = in->myDev;
-
- ylist_add(&in->hashLink, &dev->objectBucket[bucket].list);
- dev->objectBucket[bucket].count++;
+ int bucket = yaffs_HashFunction(in->objectId);
+ yaffs_Device *dev = in->myDev;
+ ylist_add(&in->hashLink, &dev->objectBucket[bucket].list);
+ dev->objectBucket[bucket].count++;
}
-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number)
+yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number)
{
- int bucket = yaffs_HashFunction(number);
- struct ylist_head *i;
- yaffs_Object *in;
+ int bucket = yaffs_HashFunction(number);
+ struct ylist_head *i;
+ yaffs_Object *in;
- ylist_for_each(i, &dev->objectBucket[bucket].list) {
- /* Look if it is in the list */
- if (i) {
- in = ylist_entry(i, yaffs_Object, hashLink);
- if (in->objectId == number) {
+ ylist_for_each(i, &dev->objectBucket[bucket].list) {
+ /* Look if it is in the list */
+ if (i) {
+ in = ylist_entry(i, yaffs_Object, hashLink);
+ if (in->objectId == number) {
#ifdef __KERNEL__
- /* Don't tell the VFS about this one if it is defered free */
+ /* Don't tell the VFS about this one if it is defered free */
if (in->deferedFree)
return NULL;
#endif
return NULL;
}
-yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number,
+yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number,
yaffs_ObjectType type)
{
-
yaffs_Object *theObject;
yaffs_Tnode *tn = NULL;
}
theObject = yaffs_AllocateEmptyObject(dev);
- if(!theObject)
+ if (!theObject)
return NULL;
-
- if(type == YAFFS_OBJECT_TYPE_FILE){
+
+ if (type == YAFFS_OBJECT_TYPE_FILE) {
tn = yaffs_GetTnode(dev);
- if(!tn){
+ if (!tn) {
yaffs_FreeObject(theObject);
return NULL;
}
}
-
-
if (theObject) {
theObject->fake = 0;
theObject->variant.fileVariant.scannedFileSize = 0;
theObject->variant.fileVariant.shrinkSize = 0xFFFFFFFF; /* max __u32 */
theObject->variant.fileVariant.topLevel = 0;
- theObject->variant.fileVariant.top = tn;
- break;
- case YAFFS_OBJECT_TYPE_DIRECTORY:
- YINIT_LIST_HEAD(&theObject->variant.directoryVariant.
- children);
- break;
- case YAFFS_OBJECT_TYPE_SYMLINK:
+ theObject->variant.fileVariant.top = tn;
+ break;
+ case YAFFS_OBJECT_TYPE_DIRECTORY:
+ YINIT_LIST_HEAD(&theObject->variant.directoryVariant.
+ children);
+ break;
+ case YAFFS_OBJECT_TYPE_SYMLINK:
case YAFFS_OBJECT_TYPE_HARDLINK:
case YAFFS_OBJECT_TYPE_SPECIAL:
/* No action required */
return theObject;
}
-static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev,
+static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev,
int number,
yaffs_ObjectType type)
{
return theObject;
}
-
-static YCHAR *yaffs_CloneString(const YCHAR * str)
+
+static YCHAR *yaffs_CloneString(const YCHAR *str)
{
YCHAR *newStr = NULL;
if (str && *str) {
newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR));
- if(newStr)
+ if (newStr)
yaffs_strcpy(newStr, str);
}
* aliasString only has meaning for a sumlink.
* rdev only has meaning for devices (a subset of special objects)
*/
-
+
static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type,
- yaffs_Object * parent,
- const YCHAR * name,
+ yaffs_Object *parent,
+ const YCHAR *name,
__u32 mode,
__u32 uid,
__u32 gid,
- yaffs_Object * equivalentObject,
- const YCHAR * aliasString, __u32 rdev)
+ yaffs_Object *equivalentObject,
+ const YCHAR *aliasString, __u32 rdev)
{
yaffs_Object *in;
YCHAR *str = NULL;
in = yaffs_CreateNewObject(dev, -1, type);
- if(!in)
+ if (!in)
return YAFFS_FAIL;
-
- if(type == YAFFS_OBJECT_TYPE_SYMLINK){
+
+ if (type == YAFFS_OBJECT_TYPE_SYMLINK) {
str = yaffs_CloneString(aliasString);
- if(!str){
+ if (!str) {
yaffs_FreeObject(in);
return NULL;
}
}
-
-
+
+
if (in) {
in->hdrChunk = 0;
break;
case YAFFS_OBJECT_TYPE_HARDLINK:
in->variant.hardLinkVariant.equivalentObject =
- equivalentObject;
- in->variant.hardLinkVariant.equivalentObjectId =
- equivalentObject->objectId;
- ylist_add(&in->hardLinks, &equivalentObject->hardLinks);
- break;
- case YAFFS_OBJECT_TYPE_FILE:
- case YAFFS_OBJECT_TYPE_DIRECTORY:
+ equivalentObject;
+ in->variant.hardLinkVariant.equivalentObjectId =
+ equivalentObject->objectId;
+ ylist_add(&in->hardLinks, &equivalentObject->hardLinks);
+ break;
+ case YAFFS_OBJECT_TYPE_FILE:
+ case YAFFS_OBJECT_TYPE_DIRECTORY:
case YAFFS_OBJECT_TYPE_SPECIAL:
case YAFFS_OBJECT_TYPE_UNKNOWN:
/* do nothing */
return in;
}
-yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name,
- __u32 mode, __u32 uid, __u32 gid)
+yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name,
+ __u32 mode, __u32 uid, __u32 gid)
{
return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode,
- uid, gid, NULL, NULL, 0);
+ uid, gid, NULL, NULL, 0);
}
-yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name,
- __u32 mode, __u32 uid, __u32 gid)
+yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name,
+ __u32 mode, __u32 uid, __u32 gid)
{
return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name,
mode, uid, gid, NULL, NULL, 0);
}
-yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name,
- __u32 mode, __u32 uid, __u32 gid, __u32 rdev)
+yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
+ __u32 mode, __u32 uid, __u32 gid, __u32 rdev)
{
return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode,
uid, gid, NULL, NULL, rdev);
}
-yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name,
- __u32 mode, __u32 uid, __u32 gid,
- const YCHAR * alias)
+yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name,
+ __u32 mode, __u32 uid, __u32 gid,
+ const YCHAR *alias)
{
return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode,
- uid, gid, NULL, alias, 0);
+ uid, gid, NULL, alias, 0);
}
/* yaffs_Link returns the object id of the equivalent object.*/
-yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name,
- yaffs_Object * equivalentObject)
+yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name,
+ yaffs_Object *equivalentObject)
{
/* Get the real object in case we were fed a hard link as an equivalent object */
equivalentObject = yaffs_GetEquivalentObject(equivalentObject);
}
-static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir,
- const YCHAR * newName, int force, int shadows)
+static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir,
+ const YCHAR *newName, int force, int shadows)
{
int unlinkOp;
int deleteOp;
TENDSTR)));
YBUG();
}
-
+
/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
if (obj->myDev->isYaffs2) {
unlinkOp = (newDir == obj->myDev->unlinkedDir);
existingTarget = yaffs_FindObjectByName(newDir, newName);
- /* If the object is a file going into the unlinked directory,
+ /* If the object is a file going into the unlinked directory,
* then it is OK to just stuff it in since duplicate names are allowed.
- * else only proceed if the new name does not exist and if we're putting
+ * else only proceed if the new name does not exist and if we're putting
* it into a directory.
*/
if ((unlinkOp ||
obj->unlinked = 1;
/* If it is a deletion then we mark it as a shrink for gc purposes. */
- if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows)>= 0)
+ if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0)
return YAFFS_OK;
}
return YAFFS_FAIL;
}
-int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName,
- yaffs_Object * newDir, const YCHAR * newName)
+int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName,
+ yaffs_Object *newDir, const YCHAR *newName)
{
- yaffs_Object *obj=NULL;
- yaffs_Object *existingTarget=NULL;
+ yaffs_Object *obj = NULL;
+ yaffs_Object *existingTarget = NULL;
int force = 0;
-
-
- if(!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
+
+
+ if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
YBUG();
- if(!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
+ if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
YBUG();
#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
#endif
else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH)
- /* ENAMETOOLONG */
- return YAFFS_FAIL;
+ /* ENAMETOOLONG */
+ return YAFFS_FAIL;
obj = yaffs_FindObjectByName(oldDir, oldName);
/* Now do the handling for an existing target, if there is one */
- existingTarget = yaffs_FindObjectByName(newDir, newName);
- if (existingTarget &&
- existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
- !ylist_empty(&existingTarget->variant.directoryVariant.children)) {
- /* There is a target that is a non-empty directory, so we fail */
- return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */
- } else if (existingTarget && existingTarget != obj) {
- /* Nuke the target first, using shadowing,
+ existingTarget = yaffs_FindObjectByName(newDir, newName);
+ if (existingTarget &&
+ existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
+ !ylist_empty(&existingTarget->variant.directoryVariant.children)) {
+ /* There is a target that is a non-empty directory, so we fail */
+ return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */
+ } else if (existingTarget && existingTarget != obj) {
+ /* Nuke the target first, using shadowing,
* but only if it isn't the same object
*/
yaffs_ChangeObjectName(obj, newDir, newName, force,
- existingTarget->objectId);
+ existingTarget->objectId);
yaffs_UnlinkObject(existingTarget);
}
/*------------------------- Block Management and Page Allocation ----------------*/
-static int yaffs_InitialiseBlocks(yaffs_Device * dev)
+static int yaffs_InitialiseBlocks(yaffs_Device *dev)
{
int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
-
+
dev->blockInfo = NULL;
dev->chunkBits = NULL;
-
+
dev->allocationBlock = -1; /* force it to get a new one */
/* If the first allocation strategy fails, thry the alternate one */
dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo));
- if(!dev->blockInfo){
+ if (!dev->blockInfo) {
dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo));
dev->blockInfoAlt = 1;
- }
- else
+ } else
dev->blockInfoAlt = 0;
-
- if(dev->blockInfo){
-
+
+ if (dev->blockInfo) {
/* Set up dynamic blockinfo stuff. */
dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */
dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks);
- if(!dev->chunkBits){
+ if (!dev->chunkBits) {
dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks);
dev->chunkBitsAlt = 1;
- }
- else
+ } else
dev->chunkBitsAlt = 0;
}
-
+
if (dev->blockInfo && dev->chunkBits) {
memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo));
memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks);
}
return YAFFS_FAIL;
-
}
-static void yaffs_DeinitialiseBlocks(yaffs_Device * dev)
+static void yaffs_DeinitialiseBlocks(yaffs_Device *dev)
{
- if(dev->blockInfoAlt && dev->blockInfo)
+ if (dev->blockInfoAlt && dev->blockInfo)
YFREE_ALT(dev->blockInfo);
- else if(dev->blockInfo)
+ else if (dev->blockInfo)
YFREE(dev->blockInfo);
dev->blockInfoAlt = 0;
dev->blockInfo = NULL;
-
- if(dev->chunkBitsAlt && dev->chunkBits)
+
+ if (dev->chunkBitsAlt && dev->chunkBits)
YFREE_ALT(dev->chunkBits);
- else if(dev->chunkBits)
+ else if (dev->chunkBits)
YFREE(dev->chunkBits);
dev->chunkBitsAlt = 0;
dev->chunkBits = NULL;
}
-static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device * dev,
- yaffs_BlockInfo * bi)
+static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev,
+ yaffs_BlockInfo *bi)
{
int i;
__u32 seq;
seq = dev->sequenceNumber;
for (i = dev->internalStartBlock; i <= dev->internalEndBlock;
- i++) {
+ i++) {
b = yaffs_GetBlockInfo(dev, i);
if (b->blockState == YAFFS_BLOCK_STATE_FULL &&
(b->pagesInUse - b->softDeletions) <
* discarded pages.
*/
return (bi->sequenceNumber <= dev->oldestDirtySequence);
-
}
/* FindDiretiestBlock is used to select the dirtiest block (or close enough)
* for garbage collection.
*/
-static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev,
- int aggressive)
+static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev,
+ int aggressive)
{
-
int b = dev->currentDirtyChecker;
int i;
int iterations;
int dirtiest = -1;
int pagesInUse = 0;
- int prioritised=0;
+ int prioritised = 0;
yaffs_BlockInfo *bi;
int pendingPrioritisedExist = 0;
-
+
/* First let's see if we need to grab a prioritised block */
- if(dev->hasPendingPrioritisedGCs){
- for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){
+ if (dev->hasPendingPrioritisedGCs) {
+ for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) {
bi = yaffs_GetBlockInfo(dev, i);
- //yaffs_VerifyBlock(dev,bi,i);
-
- if(bi->gcPrioritise) {
+ /* yaffs_VerifyBlock(dev,bi,i); */
+
+ if (bi->gcPrioritise) {
pendingPrioritisedExist = 1;
- if(bi->blockState == YAFFS_BLOCK_STATE_FULL &&
- yaffs_BlockNotDisqualifiedFromGC(dev, bi)){
+ if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
+ yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
pagesInUse = (bi->pagesInUse - bi->softDeletions);
dirtiest = i;
prioritised = 1;
}
}
}
-
- if(!pendingPrioritisedExist) /* None found, so we can clear this */
+
+ if (!pendingPrioritisedExist) /* None found, so we can clear this */
dev->hasPendingPrioritisedGCs = 0;
}
return -1;
}
- if(!prioritised)
+ if (!prioritised)
pagesInUse =
- (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1;
+ (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1;
if (aggressive) {
iterations =
if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) {
dirtiest = b;
pagesInUse = 0;
- }
- else
+ } else
#endif
if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
- (bi->pagesInUse - bi->softDeletions) < pagesInUse &&
- yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
+ (bi->pagesInUse - bi->softDeletions) < pagesInUse &&
+ yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
dirtiest = b;
pagesInUse = (bi->pagesInUse - bi->softDeletions);
}
if (dirtiest > 0) {
T(YAFFS_TRACE_GC,
(TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest,
- dev->nChunksPerBlock - pagesInUse,prioritised));
+ dev->nChunksPerBlock - pagesInUse, prioritised));
}
dev->oldestDirtySequence = 0;
- if (dirtiest > 0) {
+ if (dirtiest > 0)
dev->nonAggressiveSkip = 4;
- }
return dirtiest;
}
-static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo)
+static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo)
{
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo);
/* If the block is still healthy erase it and mark as clean.
* If the block has had a data failure, then retire it.
*/
-
+
T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE,
(TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR),
blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : ""));
-
+
bi->blockState = YAFFS_BLOCK_STATE_DIRTY;
if (!bi->needsRetiring) {
}
}
- if (erasedOk &&
+ if (erasedOk &&
((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) {
int i;
for (i = 0; i < dev->nChunksPerBlock; i++) {
}
}
-static int yaffs_FindBlockForAllocation(yaffs_Device * dev)
+static int yaffs_FindBlockForAllocation(yaffs_Device *dev)
{
int i;
return -1;
}
-
+
/* Find an empty block. */
for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev)
{
- if(!dev->nCheckpointBlocksRequired &&
- dev->isYaffs2){
+ if (!dev->nCheckpointBlocksRequired &&
+ dev->isYaffs2) {
/* Not a valid value so recalculate */
int nBytes = 0;
int nBlocks;
tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
- if(tnodeSize < sizeof(yaffs_Tnode))
+ if (tnodeSize < sizeof(yaffs_Tnode))
tnodeSize = sizeof(yaffs_Tnode);
-
+
nBytes += sizeof(yaffs_CheckpointValidity);
nBytes += sizeof(yaffs_CheckpointDevice);
nBytes += devBlocks * sizeof(yaffs_BlockInfo);
nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes);
nBytes += sizeof(yaffs_CheckpointValidity);
nBytes += sizeof(__u32); /* checksum*/
-
+
/* Round up and add 2 blocks to allow for some bad blocks, so add 3 */
-
+
nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3;
-
+
dev->nCheckpointBlocksRequired = nBlocks;
}
return dev->nCheckpointBlocksRequired;
}
-// Check if there's space to allocate...
-// Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()?
-static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev)
+/*
+ * Check if there's space to allocate...
+ * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()?
+ */
+static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev)
{
int reservedChunks;
int reservedBlocks = dev->nReservedBlocks;
int checkpointBlocks;
-
- if(dev->isYaffs2){
- checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) -
+
+ if (dev->isYaffs2) {
+ checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) -
dev->blocksInCheckpoint;
- if(checkpointBlocks < 0)
+ if (checkpointBlocks < 0)
checkpointBlocks = 0;
} else {
- checkpointBlocks =0;
+ checkpointBlocks = 0;
}
-
+
reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock);
-
+
return (dev->nFreeChunks > reservedChunks);
}
-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr)
+static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve,
+ yaffs_BlockInfo **blockUsedPtr)
{
int retVal;
yaffs_BlockInfo *bi;
}
if (dev->nErasedBlocks < dev->nReservedBlocks
- && dev->allocationPage == 0) {
+ && dev->allocationPage == 0) {
T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR)));
}
bi = yaffs_GetBlockInfo(dev, dev->allocationBlock);
retVal = (dev->allocationBlock * dev->nChunksPerBlock) +
- dev->allocationPage;
+ dev->allocationPage;
bi->pagesInUse++;
yaffs_SetChunkBit(dev, dev->allocationBlock,
- dev->allocationPage);
+ dev->allocationPage);
dev->allocationPage++;
dev->allocationBlock = -1;
}
- if(blockUsedPtr)
+ if (blockUsedPtr)
*blockUsedPtr = bi;
-
+
return retVal;
}
-
+
T(YAFFS_TRACE_ERROR,
- (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
+ (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
return -1;
}
-static int yaffs_GetErasedChunks(yaffs_Device * dev)
+static int yaffs_GetErasedChunks(yaffs_Device *dev)
{
int n;
}
-static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block, int wholeBlock)
+static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block,
+ int wholeBlock)
{
int oldChunk;
int newChunk;
yaffs_Object *object;
isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT);
-
+
bi->blockState = YAFFS_BLOCK_STATE_COLLECTING;
T(YAFFS_TRACE_TRACING,
- (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR),
- block,
- bi->pagesInUse,
- bi->hasShrinkHeader,
- wholeBlock));
+ (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR),
+ block,
+ bi->pagesInUse,
+ bi->hasShrinkHeader,
+ wholeBlock));
/*yaffs_VerifyFreeChunks(dev); */
dev->isDoingGC = 1;
if (isCheckpointBlock ||
- !yaffs_StillSomeChunkBits(dev, block)) {
+ !yaffs_StillSomeChunkBits(dev, block)) {
T(YAFFS_TRACE_TRACING,
- (TSTR
- ("Collecting block %d that has no chunks in use" TENDSTR),
- block));
+ (TSTR
+ ("Collecting block %d that has no chunks in use" TENDSTR),
+ block));
yaffs_BlockBecameDirty(dev, block);
} else {
__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
-
- yaffs_VerifyBlock(dev,bi,block);
+
+ yaffs_VerifyBlock(dev, bi, block);
maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10;
oldChunk = block * dev->nChunksPerBlock + dev->gcChunk;
-
- for ( /* init already done */;
+
+ for (/* init already done */;
retVal == YAFFS_OK &&
dev->gcChunk < dev->nChunksPerBlock &&
- (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING)&&
+ (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) &&
maxCopies > 0;
dev->gcChunk++, oldChunk++) {
if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) {
/* This page is in use and might need to be copied off */
-
+
maxCopies--;
markNAND = 1;
("Collecting chunk in block %d, %d %d %d " TENDSTR),
dev->gcChunk, tags.objectId, tags.chunkId,
tags.byteCount));
-
- if(object && !yaffs_SkipVerification(dev)){
- if(tags.chunkId == 0)
+
+ if (object && !yaffs_SkipVerification(dev)) {
+ if (tags.chunkId == 0)
matchingChunk = object->hdrChunk;
- else if(object->softDeleted)
+ else if (object->softDeleted)
matchingChunk = oldChunk; /* Defeat the test */
else
- matchingChunk = yaffs_FindChunkInFile(object,tags.chunkId,NULL);
-
- if(oldChunk != matchingChunk)
+ matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL);
+
+ if (oldChunk != matchingChunk)
T(YAFFS_TRACE_ERROR,
(TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR),
- oldChunk,matchingChunk,tags.objectId, tags.chunkId));
-
+ oldChunk, matchingChunk, tags.objectId, tags.chunkId));
+
}
if (!object) {
tags.objectId, tags.chunkId, tags.byteCount));
}
- if (object &&
+ if (object &&
object->deleted &&
object->softDeleted &&
tags.chunkId != 0) {
/* Data chunk in a soft deleted file, throw it away
* It's a soft deleted data chunk,
- * No need to copy this, just forget about it and
+ * No need to copy this, just forget about it and
* fix up the object.
*/
cleanups++;
}
markNAND = 0;
- } else if (0
- /* Todo object && object->deleted && object->nDataChunks == 0 */
- ) {
+ } else if (0) {
+ /* Todo object && object->deleted && object->nDataChunks == 0 */
/* Deleted object header with no data chunks.
* Can be discarded and the file deleted.
*/
oh = (yaffs_ObjectHeader *)buffer;
oh->isShrink = 0;
tags.extraIsShrinkHeader = 0;
-
- yaffs_VerifyObjectHeader(object,oh,&tags,1);
+
+ yaffs_VerifyObjectHeader(object, oh, &tags, 1);
}
newChunk =
}
}
- if(retVal == YAFFS_OK)
+ if (retVal == YAFFS_OK)
yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__);
}
}
- yaffs_VerifyCollectedBlock(dev,bi,block);
-
- if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) {
+ yaffs_VerifyCollectedBlock(dev, bi, block);
+
+ chunksAfter = yaffs_GetErasedChunks(dev);
+ if (chunksBefore >= chunksAfter) {
T(YAFFS_TRACE_GC,
(TSTR
("gc did not increase free chunks before %d after %d"
}
/* If the gc completed then clear the current gcBlock so that we find another. */
- if(bi->blockState != YAFFS_BLOCK_STATE_COLLECTING){
+ if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) {
dev->gcBlock = -1;
dev->gcChunk = 0;
}
-
+
dev->isDoingGC = 0;
return retVal;
* The idea is to help clear out space in a more spread-out manner.
* Dunno if it really does anything useful.
*/
-static int yaffs_CheckGarbageCollection(yaffs_Device * dev)
+static int yaffs_CheckGarbageCollection(yaffs_Device *dev)
{
int block;
int aggressive;
int gcOk = YAFFS_OK;
int maxTries = 0;
-
+
int checkpointBlockAdjust;
if (dev->isDoingGC) {
/* Bail out so we don't get recursive gc */
return YAFFS_OK;
}
-
+
/* This loop should pass the first time.
* We'll only see looping here if the erase of the collected block fails.
*/
do {
maxTries++;
-
+
checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
- if(checkpointBlockAdjust < 0)
+ if (checkpointBlockAdjust < 0)
checkpointBlockAdjust = 0;
if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) {
aggressive = 0;
}
- if(dev->gcBlock <= 0){
+ if (dev->gcBlock <= 0) {
dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive);
dev->gcChunk = 0;
}
-
+
block = dev->gcBlock;
if (block > 0) {
("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR),
dev->nErasedBlocks, aggressive));
- gcOk = yaffs_GarbageCollectBlock(dev,block,aggressive);
+ gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive);
}
if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) {
("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d"
TENDSTR), dev->nErasedBlocks, maxTries, block));
}
- } while ((dev->nErasedBlocks < dev->nReservedBlocks) &&
+ } while ((dev->nErasedBlocks < dev->nReservedBlocks) &&
(block > 0) &&
(maxTries < 2));
/*------------------------- TAGS --------------------------------*/
-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId,
+static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId,
int chunkInObject)
{
return (tags->chunkId == chunkInObject &&
/*-------------------- Data file manipulation -----------------*/
-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode,
- yaffs_ExtendedTags * tags)
+static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode,
+ yaffs_ExtendedTags *tags)
{
/*Get the Tnode, then get the level 0 offset chunk offset */
yaffs_Tnode *tn;
tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode);
if (tn) {
- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode);
+ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
retVal =
yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
return retVal;
}
-static int yaffs_FindAndDeleteChunkInFile(yaffs_Object * in, int chunkInInode,
- yaffs_ExtendedTags * tags)
+static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode,
+ yaffs_ExtendedTags *tags)
{
/* Get the Tnode, then get the level 0 offset chunk offset */
yaffs_Tnode *tn;
if (tn) {
- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode);
+ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
retVal =
yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
/* Delete the entry in the filestructure (if found) */
if (retVal != -1) {
- yaffs_PutLevel0Tnode(dev,tn,chunkInInode,0);
+ yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0);
}
} else {
/*T(("No level 0 found for %d\n", chunkInInode)); */
#ifdef YAFFS_PARANOID
-static int yaffs_CheckFileSanity(yaffs_Object * in)
+static int yaffs_CheckFileSanity(yaffs_Object *in)
{
int chunk;
int nChunks;
if (tn) {
- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunk);
+ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk);
if (yaffs_CheckChunkBits
(dev, theChunk / dev->nChunksPerBlock,
#endif
-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
+static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode,
int chunkInNAND, int inScan)
{
- /* NB inScan is zero unless scanning.
- * For forward scanning, inScan is > 0;
+ /* NB inScan is zero unless scanning.
+ * For forward scanning, inScan is > 0;
* for backward scanning inScan is < 0
*/
-
+
yaffs_Tnode *tn;
yaffs_Device *dev = in->myDev;
int existingChunk;
return YAFFS_OK;
}
- tn = yaffs_AddOrFindLevel0Tnode(dev,
+ tn = yaffs_AddOrFindLevel0Tnode(dev,
&in->variant.fileVariant,
chunkInInode,
NULL);
return YAFFS_FAIL;
}
- existingChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode);
+ existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
if (inScan != 0) {
/* If we're scanning then we need to test for duplicates
- * NB This does not need to be efficient since it should only ever
+ * NB This does not need to be efficient since it should only ever
* happen when the power fails during a write, then only one
* chunk should ever be affected.
*
}
- /* NB The deleted flags should be false, otherwise the chunks will
+ /* NB The deleted flags should be false, otherwise the chunks will
* not be loaded during a scan
*/
- if(inScan > 0) {
+ if (inScan > 0) {
newSerial = newTags.serialNumber;
existingSerial = existingTags.serialNumber;
}
(in->myDev->isYaffs2 ||
existingChunk <= 0 ||
((existingSerial + 1) & 3) == newSerial)) {
- /* Forward scanning.
+ /* Forward scanning.
* Use new
* Delete the old one and drop through to update the tnode
*/
in->nDataChunks++;
}
- yaffs_PutLevel0Tnode(dev,tn,chunkInInode,chunkInNAND);
+ yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND);
return YAFFS_OK;
}
-static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode,
- __u8 * buffer)
+static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode,
+ __u8 *buffer)
{
int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL);
if (chunkInNAND >= 0) {
return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND,
- buffer,NULL);
+ buffer, NULL);
} else {
T(YAFFS_TRACE_NANDACCESS,
(TSTR("Chunk %d not found zero instead" TENDSTR),
chunkInNAND));
/* get sane (zero) data if you read a hole */
- memset(buffer, 0, in->myDev->nDataBytesPerChunk);
+ memset(buffer, 0, in->myDev->nDataBytesPerChunk);
return 0;
}
}
-void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn)
+void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn)
{
int block;
int page;
if (chunkId <= 0)
return;
-
+
dev->nDeletions++;
block = chunkId / dev->nChunksPerBlock;
page = chunkId % dev->nChunksPerBlock;
- if(!yaffs_CheckChunkBit(dev,block,page))
+ if (!yaffs_CheckChunkBit(dev, block, page))
T(YAFFS_TRACE_VERIFY,
- (TSTR("Deleting invalid chunk %d"TENDSTR),
- chunkId));
+ (TSTR("Deleting invalid chunk %d"TENDSTR),
+ chunkId));
bi = yaffs_GetBlockInfo(dev, block);
}
-static int yaffs_WriteChunkDataToObject(yaffs_Object * in, int chunkInInode,
- const __u8 * buffer, int nBytes,
+static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode,
+ const __u8 *buffer, int nBytes,
int useReserve)
{
/* Find old chunk Need to do this to get serial number
newTags.serialNumber =
(prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1;
newTags.byteCount = nBytes;
-
- if(nBytes < 1 || nBytes > dev->totalBytesPerChunk){
+
+ if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) {
T(YAFFS_TRACE_ERROR,
(TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes));
YBUG();
- }
-
-
+ }
newChunkId =
yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
/* UpdateObjectHeader updates the header on NAND for an object.
* If name is not NULL, then that new name is used.
*/
-int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force,
+int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force,
int isShrink, int shadows)
{
__u8 *buffer = NULL;
YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1];
- yaffs_ObjectHeader *oh = NULL;
-
- yaffs_strcpy(oldName,_Y("silly old name"));
+ yaffs_ObjectHeader *oh = NULL;
+
+ yaffs_strcpy(oldName, _Y("silly old name"));
- if (!in->fake ||
- in == dev->rootDir || /* The rootDir should also be saved */
- force) {
+ if (!in->fake ||
+ in == dev->rootDir || /* The rootDir should also be saved */
+ force) {
yaffs_CheckGarbageCollection(dev);
yaffs_CheckObjectDetailsLoaded(in);
if (prevChunkId > 0) {
result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId,
buffer, &oldTags);
-
- yaffs_VerifyObjectHeader(in,oh,&oldTags,0);
-
+
+ yaffs_VerifyObjectHeader(in, oh, &oldTags, 0);
+
memcpy(oldName, oh->name, sizeof(oh->name));
}
if (name && *name) {
memset(oh->name, 0, sizeof(oh->name));
yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH);
- } else if (prevChunkId>=0) {
+ } else if (prevChunkId >= 0) {
memcpy(oh->name, oldName, sizeof(oh->name));
} else {
memset(oh->name, 0, sizeof(oh->name));
newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0;
newTags.extraObjectType = in->variantType;
- yaffs_VerifyObjectHeader(in,oh,&newTags,1);
+ yaffs_VerifyObjectHeader(in, oh, &newTags, 1);
/* Create new chunk in NAND */
newChunkId =
__LINE__);
}
- if(!yaffs_ObjectHasCachedWriteData(in))
+ if (!yaffs_ObjectHasCachedWriteData(in))
in->dirty = 0;
/* If this was a shrink, then mark the block that the chunk lives on */
if (isShrink) {
bi = yaffs_GetBlockInfo(in->myDev,
- newChunkId /in->myDev-> nChunksPerBlock);
+ newChunkId / in->myDev->nChunksPerBlock);
bi->hasShrinkHeader = 1;
}
/*------------------------ Short Operations Cache ----------------------------------------
* In many situations where there is no high level buffering (eg WinCE) a lot of
- * reads might be short sequential reads, and a lot of writes may be short
+ * reads might be short sequential reads, and a lot of writes may be short
* sequential writes. eg. scanning/writing a jpeg file.
- * In these cases, a short read/write cache can provide a huge perfomance benefit
+ * In these cases, a short read/write cache can provide a huge perfomance benefit
* with dumb-as-a-rock code.
- * In Linux, the page cache provides read buffering aand the short op cache provides write
+ * In Linux, the page cache provides read buffering aand the short op cache provides write
* buffering.
*
* There are a limited number (~10) of cache chunks per device so that we don't
int i;
yaffs_ChunkCache *cache;
int nCaches = obj->myDev->nShortOpCaches;
-
- for(i = 0; i < nCaches; i++){
+
+ for (i = 0; i < nCaches; i++) {
cache = &dev->srCache[i];
if (cache->object == obj &&
cache->dirty)
return 1;
}
-
+
return 0;
}
-static void yaffs_FlushFilesChunkCache(yaffs_Object * obj)
+static void yaffs_FlushFilesChunkCache(yaffs_Object *obj)
{
yaffs_Device *dev = obj->myDev;
int lowest = -99; /* Stop compiler whining. */
yaffs_Object *obj;
int nCaches = dev->nShortOpCaches;
int i;
-
+
/* Find a dirty object in the cache and flush it...
* until there are no further dirty objects.
*/
do {
obj = NULL;
- for( i = 0; i < nCaches && !obj; i++) {
+ for (i = 0; i < nCaches && !obj; i++) {
if (dev->srCache[i].object &&
dev->srCache[i].dirty)
obj = dev->srCache[i].object;
-
+
}
- if(obj)
+ if (obj)
yaffs_FlushFilesChunkCache(obj);
-
- } while(obj);
-
+
+ } while (obj);
+
}
/* Grab us a cache chunk for use.
- * First look for an empty one.
+ * First look for an empty one.
* Then look for the least recently used non-dirty one.
* Then look for the least recently used dirty one...., flush and look again.
*/
-static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev)
+static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev)
{
int i;
if (dev->nShortOpCaches > 0) {
for (i = 0; i < dev->nShortOpCaches; i++) {
- if (!dev->srCache[i].object)
+ if (!dev->srCache[i].object)
return &dev->srCache[i];
}
}
return NULL;
}
-static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device * dev)
+static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev)
{
yaffs_ChunkCache *cache;
yaffs_Object *theObj;
for (i = 0; i < dev->nShortOpCaches; i++) {
if (dev->srCache[i].object &&
!dev->srCache[i].locked &&
- (dev->srCache[i].lastUse < usage || !cache))
- {
+ (dev->srCache[i].lastUse < usage || !cache)) {
usage = dev->srCache[i].lastUse;
theObj = dev->srCache[i].object;
cache = &dev->srCache[i];
}
/* Find a cached chunk */
-static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object * obj,
+static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj,
int chunkId)
{
yaffs_Device *dev = obj->myDev;
}
/* Mark the chunk for the least recently used algorithym */
-static void yaffs_UseChunkCache(yaffs_Device * dev, yaffs_ChunkCache * cache,
+static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache,
int isAWrite)
{
* Do this when a whole page gets written,
* ie the short cache for this page is no longer valid.
*/
-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId)
+static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId)
{
if (object->myDev->nShortOpCaches > 0) {
yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId);
/* Invalidate all the cache pages associated with this object
* Do this whenever ther file is deleted or resized.
*/
-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in)
+static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in)
{
int i;
yaffs_Device *dev = in->myDev;
/*--------------------- Checkpointing --------------------*/
-static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev,int head)
+static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head)
{
yaffs_CheckpointValidity cp;
-
- memset(&cp,0,sizeof(cp));
-
+
+ memset(&cp, 0, sizeof(cp));
+
cp.structType = sizeof(cp);
cp.magic = YAFFS_MAGIC;
cp.version = YAFFS_CHECKPOINT_VERSION;
cp.head = (head) ? 1 : 0;
-
- return (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp))?
+
+ return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ?
1 : 0;
}
{
yaffs_CheckpointValidity cp;
int ok;
-
- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
-
- if(ok)
+
+ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
+
+ if (ok)
ok = (cp.structType == sizeof(cp)) &&
(cp.magic == YAFFS_MAGIC) &&
(cp.version == YAFFS_CHECKPOINT_VERSION) &&
return ok ? 1 : 0;
}
-static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp,
+static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp,
yaffs_Device *dev)
{
cp->nErasedBlocks = dev->nErasedBlocks;
cp->allocationBlock = dev->allocationBlock;
cp->allocationPage = dev->allocationPage;
cp->nFreeChunks = dev->nFreeChunks;
-
+
cp->nDeletedFiles = dev->nDeletedFiles;
cp->nUnlinkedFiles = dev->nUnlinkedFiles;
cp->nBackgroundDeletions = dev->nBackgroundDeletions;
cp->sequenceNumber = dev->sequenceNumber;
cp->oldestDirtySequence = dev->oldestDirtySequence;
-
+
}
static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev,
dev->allocationBlock = cp->allocationBlock;
dev->allocationPage = cp->allocationPage;
dev->nFreeChunks = cp->nFreeChunks;
-
+
dev->nDeletedFiles = cp->nDeletedFiles;
dev->nUnlinkedFiles = cp->nUnlinkedFiles;
dev->nBackgroundDeletions = cp->nBackgroundDeletions;
__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
int ok;
-
+
/* Write device runtime values*/
- yaffs_DeviceToCheckpointDevice(&cp,dev);
+ yaffs_DeviceToCheckpointDevice(&cp, dev);
cp.structType = sizeof(cp);
-
- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
-
+
+ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
+
/* Write block info */
- if(ok) {
+ if (ok) {
nBytes = nBlocks * sizeof(yaffs_BlockInfo);
- ok = (yaffs_CheckpointWrite(dev,dev->blockInfo,nBytes) == nBytes);
+ ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes);
}
-
- /* Write chunk bits */
- if(ok) {
+
+ /* Write chunk bits */
+ if (ok) {
nBytes = nBlocks * dev->chunkBitmapStride;
- ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes);
+ ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes);
}
return ok ? 1 : 0;
__u32 nBytes;
__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
- int ok;
-
- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
- if(!ok)
+ int ok;
+
+ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
+ if (!ok)
return 0;
-
- if(cp.structType != sizeof(cp))
+
+ if (cp.structType != sizeof(cp))
return 0;
-
-
- yaffs_CheckpointDeviceToDevice(dev,&cp);
-
+
+
+ yaffs_CheckpointDeviceToDevice(dev, &cp);
+
nBytes = nBlocks * sizeof(yaffs_BlockInfo);
-
- ok = (yaffs_CheckpointRead(dev,dev->blockInfo,nBytes) == nBytes);
-
- if(!ok)
+
+ ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes);
+
+ if (!ok)
return 0;
nBytes = nBlocks * dev->chunkBitmapStride;
-
- ok = (yaffs_CheckpointRead(dev,dev->chunkBits,nBytes) == nBytes);
-
+
+ ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes);
+
return ok ? 1 : 0;
}
cp->unlinkAllowed = obj->unlinkAllowed;
cp->serial = obj->serial;
cp->nDataChunks = obj->nDataChunks;
-
- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+
+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize;
- else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
+ else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId;
}
-static int yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointObject *cp)
+static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp)
{
yaffs_Object *parent;
if (obj->variantType != cp->variantType) {
- T(YAFFS_TRACE_ERROR,(TSTR("Checkpoint read object %d type %d "
+ T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d "
TCONT("chunk %d does not match existing object type %d")
TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk,
obj->variantType));
return 0;
}
-
+
obj->objectId = cp->objectId;
-
- if(cp->parentId)
+
+ if (cp->parentId)
parent = yaffs_FindOrCreateObjectByNumber(
obj->myDev,
cp->parentId,
YAFFS_OBJECT_TYPE_DIRECTORY);
else
parent = NULL;
-
- if(parent) {
+
+ if (parent) {
if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
- T(YAFFS_TRACE_ALWAYS,(TSTR("Checkpoint read object %d parent %d type %d"
+ T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d"
TCONT(" chunk %d Parent type, %d, not directory")
TENDSTR),
- cp->objectId,cp->parentId,cp->variantType,cp->hdrChunk,parent->variantType));
+ cp->objectId, cp->parentId, cp->variantType,
+ cp->hdrChunk, parent->variantType));
return 0;
}
yaffs_AddObjectToDirectory(parent, obj);
obj->unlinkAllowed = cp->unlinkAllowed;
obj->serial = cp->serial;
obj->nDataChunks = cp->nDataChunks;
-
- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+
+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId;
- else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
+ else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId;
- if(obj->hdrChunk > 0)
+ if (obj->hdrChunk > 0)
obj->lazyLoaded = 1;
return 1;
}
-static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn,
- __u32 level, int chunkOffset)
+static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn,
+ __u32 level, int chunkOffset)
{
int i;
yaffs_Device *dev = in->myDev;
int ok = 1;
int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
- if(tnodeSize < sizeof(yaffs_Tnode))
+ if (tnodeSize < sizeof(yaffs_Tnode))
tnodeSize = sizeof(yaffs_Tnode);
-
+
if (tn) {
if (level > 0) {
- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){
+ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
if (tn->internal[i]) {
ok = yaffs_CheckpointTnodeWorker(in,
tn->internal[i],
}
} else if (level == 0) {
__u32 baseOffset = chunkOffset << YAFFS_TNODES_LEVEL0_BITS;
- ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset));
- if(ok)
- ok = (yaffs_CheckpointWrite(dev,tn,tnodeSize) == tnodeSize);
+ ok = (yaffs_CheckpointWrite(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset));
+ if (ok)
+ ok = (yaffs_CheckpointWrite(dev, tn, tnodeSize) == tnodeSize);
}
}
{
__u32 endMarker = ~0;
int ok = 1;
-
- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE){
+
+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
ok = yaffs_CheckpointTnodeWorker(obj,
obj->variant.fileVariant.top,
obj->variant.fileVariant.topLevel,
0);
- if(ok)
- ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) ==
+ if (ok)
+ ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) ==
sizeof(endMarker));
}
-
+
return ok ? 1 : 0;
}
int nread = 0;
int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
- if(tnodeSize < sizeof(yaffs_Tnode))
+ if (tnodeSize < sizeof(yaffs_Tnode))
tnodeSize = sizeof(yaffs_Tnode);
- ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk));
-
- while(ok && (~baseChunk)){
+ ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
+
+ while (ok && (~baseChunk)) {
nread++;
/* Read level 0 tnode */
-
-
+
+
tn = yaffs_GetTnodeRaw(dev);
- if(tn)
- ok = (yaffs_CheckpointRead(dev,tn,tnodeSize) == tnodeSize);
+ if (tn)
+ ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize);
else
ok = 0;
-
- if(tn && ok){
+
+ if (tn && ok)
ok = yaffs_AddOrFindLevel0Tnode(dev,
- fileStructPtr,
- baseChunk,
- tn) ? 1 : 0;
-
- }
-
- if(ok)
- ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk));
-
+ fileStructPtr,
+ baseChunk,
+ tn) ? 1 : 0;
+
+ if (ok)
+ ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
+
}
- T(YAFFS_TRACE_CHECKPOINT,(
+ T(YAFFS_TRACE_CHECKPOINT, (
TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR),
- nread,baseChunk,ok));
+ nread, baseChunk, ok));
- return ok ? 1 : 0;
+ return ok ? 1 : 0;
}
-
+
static int yaffs_WriteCheckpointObjects(yaffs_Device *dev)
{
yaffs_Object *obj;
- yaffs_CheckpointObject cp;
- int i;
- int ok = 1;
- struct ylist_head *lh;
+ yaffs_CheckpointObject cp;
+ int i;
+ int ok = 1;
+ struct ylist_head *lh;
-
- /* Iterate through the objects in each hash entry,
+
+ /* Iterate through the objects in each hash entry,
* dumping them to the checkpointing stream.
- */
-
- for(i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++){
- ylist_for_each(lh, &dev->objectBucket[i].list) {
- if (lh) {
- obj = ylist_entry(lh, yaffs_Object, hashLink);
- if (!obj->deferedFree) {
- yaffs_ObjectToCheckpointObject(&cp,obj);
- cp.structType = sizeof(cp);
-
- T(YAFFS_TRACE_CHECKPOINT,(
+ */
+
+ for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) {
+ ylist_for_each(lh, &dev->objectBucket[i].list) {
+ if (lh) {
+ obj = ylist_entry(lh, yaffs_Object, hashLink);
+ if (!obj->deferedFree) {
+ yaffs_ObjectToCheckpointObject(&cp, obj);
+ cp.structType = sizeof(cp);
+
+ T(YAFFS_TRACE_CHECKPOINT, (
TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR),
- cp.objectId,cp.parentId,cp.variantType,cp.hdrChunk,(unsigned) obj));
+ cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj));
+
+ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
-
- if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){
+ if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
ok = yaffs_WriteCheckpointTnodes(obj);
}
}
}
}
- }
-
- /* Dump end of list */
- memset(&cp,0xFF,sizeof(yaffs_CheckpointObject));
+ }
+
+ /* Dump end of list */
+ memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject));
cp.structType = sizeof(cp);
-
- if(ok)
- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
-
+
+ if (ok)
+ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
+
return ok ? 1 : 0;
}
int ok = 1;
int done = 0;
yaffs_Object *hardList = NULL;
-
- while(ok && !done) {
- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
- if(cp.structType != sizeof(cp)) {
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("struct size %d instead of %d ok %d"TENDSTR),
- cp.structType,sizeof(cp),ok));
+
+ while (ok && !done) {
+ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
+ if (cp.structType != sizeof(cp)) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR),
+ cp.structType, sizeof(cp), ok));
ok = 0;
}
-
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
- cp.objectId,cp.parentId,cp.variantType,cp.hdrChunk));
- if(ok && cp.objectId == ~0)
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
+ cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk));
+
+ if (ok && cp.objectId == ~0)
done = 1;
- else if(ok){
- obj = yaffs_FindOrCreateObjectByNumber(dev,cp.objectId, cp.variantType);
- if(obj) {
- ok = yaffs_CheckpointObjectToObject(obj,&cp);
+ else if (ok) {
+ obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType);
+ if (obj) {
+ ok = yaffs_CheckpointObjectToObject(obj, &cp);
if (!ok)
break;
- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
- ok = yaffs_ReadCheckpointTnodes(obj);
- } else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
- obj->hardLinks.next =
- (struct ylist_head *)
- hardList;
- hardList = obj;
- }
-
- }
- else
+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
+ ok = yaffs_ReadCheckpointTnodes(obj);
+ } else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
+ obj->hardLinks.next =
+ (struct ylist_head *) hardList;
+ hardList = obj;
+ }
+ } else
ok = 0;
}
}
-
- if(ok)
- yaffs_HardlinkFixup(dev,hardList);
-
+
+ if (ok)
+ yaffs_HardlinkFixup(dev, hardList);
+
return ok ? 1 : 0;
}
{
__u32 checkpointSum;
int ok;
-
- yaffs_GetCheckpointSum(dev,&checkpointSum);
-
- ok = (yaffs_CheckpointWrite(dev,&checkpointSum,sizeof(checkpointSum)) == sizeof(checkpointSum));
-
- if(!ok)
+
+ yaffs_GetCheckpointSum(dev, &checkpointSum);
+
+ ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum));
+
+ if (!ok)
return 0;
-
+
return 1;
}
__u32 checkpointSum0;
__u32 checkpointSum1;
int ok;
-
- yaffs_GetCheckpointSum(dev,&checkpointSum0);
-
- ok = (yaffs_CheckpointRead(dev,&checkpointSum1,sizeof(checkpointSum1)) == sizeof(checkpointSum1));
-
- if(!ok)
+
+ yaffs_GetCheckpointSum(dev, &checkpointSum0);
+
+ ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1));
+
+ if (!ok)
return 0;
-
- if(checkpointSum0 != checkpointSum1)
+
+ if (checkpointSum0 != checkpointSum1)
return 0;
-
+
return 1;
}
static int yaffs_WriteCheckpointData(yaffs_Device *dev)
{
-
int ok = 1;
-
- if(dev->skipCheckpointWrite || !dev->isYaffs2){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint write" TENDSTR)));
+
+ if (dev->skipCheckpointWrite || !dev->isYaffs2) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR)));
ok = 0;
}
-
- if(ok)
- ok = yaffs_CheckpointOpen(dev,1);
-
- if(ok){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR)));
- ok = yaffs_WriteCheckpointValidityMarker(dev,1);
+
+ if (ok)
+ ok = yaffs_CheckpointOpen(dev, 1);
+
+ if (ok) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
+ ok = yaffs_WriteCheckpointValidityMarker(dev, 1);
}
- if(ok){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint device" TENDSTR)));
+ if (ok) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR)));
ok = yaffs_WriteCheckpointDevice(dev);
}
- if(ok){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint objects" TENDSTR)));
+ if (ok) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR)));
ok = yaffs_WriteCheckpointObjects(dev);
}
- if(ok){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR)));
- ok = yaffs_WriteCheckpointValidityMarker(dev,0);
+ if (ok) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
+ ok = yaffs_WriteCheckpointValidityMarker(dev, 0);
}
-
- if(ok){
+
+ if (ok) {
ok = yaffs_WriteCheckpointSum(dev);
}
-
-
- if(!yaffs_CheckpointClose(dev))
- ok = 0;
-
- if(ok)
- dev->isCheckpointed = 1;
- else
- dev->isCheckpointed = 0;
+
+
+ if (!yaffs_CheckpointClose(dev))
+ ok = 0;
+
+ if (ok)
+ dev->isCheckpointed = 1;
+ else
+ dev->isCheckpointed = 0;
return dev->isCheckpointed;
}
static int yaffs_ReadCheckpointData(yaffs_Device *dev)
{
int ok = 1;
-
- if(dev->skipCheckpointRead || !dev->isYaffs2){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint read" TENDSTR)));
+
+ if (dev->skipCheckpointRead || !dev->isYaffs2) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR)));
ok = 0;
}
-
- if(ok)
- ok = yaffs_CheckpointOpen(dev,0); /* open for read */
-
- if(ok){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR)));
- ok = yaffs_ReadCheckpointValidityMarker(dev,1);
+
+ if (ok)
+ ok = yaffs_CheckpointOpen(dev, 0); /* open for read */
+
+ if (ok) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
+ ok = yaffs_ReadCheckpointValidityMarker(dev, 1);
}
- if(ok){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint device" TENDSTR)));
+ if (ok) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR)));
ok = yaffs_ReadCheckpointDevice(dev);
}
- if(ok){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR)));
+ if (ok) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR)));
ok = yaffs_ReadCheckpointObjects(dev);
}
- if(ok){
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR)));
- ok = yaffs_ReadCheckpointValidityMarker(dev,0);
+ if (ok) {
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
+ ok = yaffs_ReadCheckpointValidityMarker(dev, 0);
}
-
- if(ok){
+
+ if (ok) {
ok = yaffs_ReadCheckpointSum(dev);
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint checksum %d" TENDSTR),ok));
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok));
}
- if(!yaffs_CheckpointClose(dev))
+ if (!yaffs_CheckpointClose(dev))
ok = 0;
- if(ok)
- dev->isCheckpointed = 1;
- else
- dev->isCheckpointed = 0;
+ if (ok)
+ dev->isCheckpointed = 1;
+ else
+ dev->isCheckpointed = 0;
return ok ? 1 : 0;
static void yaffs_InvalidateCheckpoint(yaffs_Device *dev)
{
- if(dev->isCheckpointed ||
- dev->blocksInCheckpoint > 0){
+ if (dev->isCheckpointed ||
+ dev->blocksInCheckpoint > 0) {
dev->isCheckpointed = 0;
yaffs_CheckpointInvalidateStream(dev);
- if(dev->superBlock && dev->markSuperBlockDirty)
+ if (dev->superBlock && dev->markSuperBlockDirty)
dev->markSuperBlockDirty(dev->superBlock);
}
}
int yaffs_CheckpointSave(yaffs_Device *dev)
{
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("save entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
yaffs_VerifyObjects(dev);
yaffs_VerifyBlocks(dev);
yaffs_VerifyFreeChunks(dev);
- if(!dev->isCheckpointed) {
+ if (!dev->isCheckpointed) {
yaffs_InvalidateCheckpoint(dev);
yaffs_WriteCheckpointData(dev);
}
-
- T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
+
+ T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
return dev->isCheckpointed;
}
int yaffs_CheckpointRestore(yaffs_Device *dev)
{
int retval;
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
-
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
+
retval = yaffs_ReadCheckpointData(dev);
- if(dev->isCheckpointed){
+ if (dev->isCheckpointed) {
yaffs_VerifyObjects(dev);
yaffs_VerifyBlocks(dev);
yaffs_VerifyFreeChunks(dev);
}
- T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
-
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
+
return retval;
}
* Curve-balls: the first chunk might also be the last chunk.
*/
-int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset,
- int nBytes)
+int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset,
+ int nBytes)
{
int chunk;
dev = in->myDev;
while (n > 0) {
- //chunk = offset / dev->nDataBytesPerChunk + 1;
- //start = offset % dev->nDataBytesPerChunk;
- yaffs_AddrToChunk(dev,offset,&chunk,&start);
+ /* chunk = offset / dev->nDataBytesPerChunk + 1; */
+ /* start = offset % dev->nDataBytesPerChunk; */
+ yaffs_AddrToChunk(dev, offset, &chunk, &start);
chunk++;
/* OK now check for the curveball where the start and end are in
- * the same chunk.
+ * the same chunk.
*/
if ((start + n) < dev->nDataBytesPerChunk) {
nToCopy = n;
return nDone;
}
-int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset,
- int nBytes, int writeThrough)
+int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset,
+ int nBytes, int writeThrough)
{
int chunk;
__u32 start;
int nToCopy;
- int n = nBytes;
- int nDone = 0;
- int nToWriteBack;
- int startOfWrite = offset;
- int chunkWritten = 0;
- __u32 nBytesRead;
- __u32 chunkStart;
+ int n = nBytes;
+ int nDone = 0;
+ int nToWriteBack;
+ int startOfWrite = offset;
+ int chunkWritten = 0;
+ __u32 nBytesRead;
+ __u32 chunkStart;
yaffs_Device *dev;
dev = in->myDev;
while (n > 0 && chunkWritten >= 0) {
- //chunk = offset / dev->nDataBytesPerChunk + 1;
- //start = offset % dev->nDataBytesPerChunk;
- yaffs_AddrToChunk(dev,offset,&chunk,&start);
-
- if(chunk * dev->nDataBytesPerChunk + start != offset ||
- start >= dev->nDataBytesPerChunk){
- T(YAFFS_TRACE_ERROR,(
+ /* chunk = offset / dev->nDataBytesPerChunk + 1; */
+ /* start = offset % dev->nDataBytesPerChunk; */
+ yaffs_AddrToChunk(dev, offset, &chunk, &start);
+
+ if (chunk * dev->nDataBytesPerChunk + start != offset ||
+ start >= dev->nDataBytesPerChunk) {
+ T(YAFFS_TRACE_ERROR, (
TSTR("AddrToChunk of offset %d gives chunk %d start %d"
TENDSTR),
- (int)offset, chunk,start));
+ (int)offset, chunk, start));
}
chunk++;
chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk);
- if(chunkStart > in->variant.fileVariant.fileSize)
+ if (chunkStart > in->variant.fileVariant.fileSize)
nBytesRead = 0; /* Past end of file */
else
nBytesRead = in->variant.fileVariant.fileSize - chunkStart;
nToWriteBack =
(nBytesRead >
(start + n)) ? nBytesRead : (start + n);
-
- if(nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk)
+
+ if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk)
YBUG();
} else {
}
if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) {
- /* An incomplete start or end chunk (or maybe both start and end chunk),
+ /* An incomplete start or end chunk (or maybe both start and end chunk),
* or we're using inband tags, so we want to use the cache buffers.
*/
if (dev->nShortOpCaches > 0) {
yaffs_ChunkCache *cache;
/* If we can't find the data in the cache, then load the cache */
cache = yaffs_FindChunkCache(in, chunk);
-
+
if (!cache
&& yaffs_CheckSpaceForAllocation(in->
myDev)) {
yaffs_ReadChunkDataFromObject(in, chunk,
cache->
data);
- }
- else if(cache &&
- !cache->dirty &&
- !yaffs_CheckSpaceForAllocation(in->myDev)){
+ } else if (cache &&
+ !cache->dirty &&
+ !yaffs_CheckSpaceForAllocation(in->myDev)) {
/* Drop the cache if it was a read cache item and
* no space check has been made for it.
- */
+ */
cache = NULL;
}
} else {
/* A full chunk. Write directly from the supplied buffer. */
-
+
chunkWritten =
/* ---------------------- File resizing stuff ------------------ */
-static void yaffs_PruneResizedChunks(yaffs_Object * in, int newSize)
+static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize)
{
yaffs_Device *dev = in->myDev;
}
-int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize)
+int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize)
{
int oldFileSize = in->variant.fileVariant.fileSize;
__u32 newSizeOfPartialChunk;
int newFullChunks;
-
+
yaffs_Device *dev = in->myDev;
yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk);
yaffs_FlushFilesChunkCache(in);
yaffs_InvalidateWholeChunkCache(in);
- yaffs_CheckGarbageCollection(dev);
+ yaffs_CheckGarbageCollection(dev);
- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
- return YAFFS_FAIL;
- }
+ if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
+ return YAFFS_FAIL;
+ }
- if (newSize == oldFileSize) {
- return YAFFS_OK;
- }
+ if (newSize == oldFileSize) {
+ return YAFFS_OK;
+ }
- if (newSize < oldFileSize) {
+ if (newSize < oldFileSize) {
yaffs_PruneResizedChunks(in, newSize);
if (newSizeOfPartialChunk != 0) {
int lastChunk = 1 + newFullChunks;
-
+
__u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__);
/* Got to read and rewrite the last chunk with its new size and zero pad */
in->variant.fileVariant.fileSize = newSize;
}
-
-
+
/* Write a new object header.
* show we've shrunk the file, if need be
* Do this only if the file is not in the deleted directories.
return YAFFS_OK;
}
-loff_t yaffs_GetFileSize(yaffs_Object * obj)
+loff_t yaffs_GetFileSize(yaffs_Object *obj)
{
obj = yaffs_GetEquivalentObject(obj);
-int yaffs_FlushFile(yaffs_Object * in, int updateTime)
+int yaffs_FlushFile(yaffs_Object *in, int updateTime)
{
int retVal;
if (in->dirty) {
#endif
}
- retVal =
- (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >=
- 0) ? YAFFS_OK : YAFFS_FAIL;
+ retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >=
+ 0) ? YAFFS_OK : YAFFS_FAIL;
} else {
retVal = YAFFS_OK;
}
}
-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in)
+static int yaffs_DoGenericObjectDeletion(yaffs_Object *in)
{
/* First off, invalidate the file's data in the cache, without flushing. */
if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) {
/* Move to the unlinked directory so we have a record that it was deleted. */
- yaffs_ChangeObjectName(in, in->myDev->deletedDir,_Y("deleted"), 0, 0);
+ yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0);
}
* and the inode associated with the file.
* It does not delete the links associated with the file.
*/
-static int yaffs_UnlinkFileIfNeeded(yaffs_Object * in)
+static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in)
{
int retVal;
return retVal;
}
-int yaffs_DeleteFile(yaffs_Object * in)
+int yaffs_DeleteFile(yaffs_Object *in)
{
int retVal = YAFFS_OK;
int deleted = in->deleted;
-
- yaffs_ResizeFile(in,0);
+
+ yaffs_ResizeFile(in, 0);
if (in->nDataChunks > 0) {
/* Use soft deletion if there is data in the file.
}
}
-static int yaffs_DeleteDirectory(yaffs_Object * in)
+static int yaffs_DeleteDirectory(yaffs_Object *in)
{
- /* First check that the directory is empty. */
- if (ylist_empty(&in->variant.directoryVariant.children)) {
- return yaffs_DoGenericObjectDeletion(in);
- }
+ /* First check that the directory is empty. */
+ if (ylist_empty(&in->variant.directoryVariant.children)) {
+ return yaffs_DoGenericObjectDeletion(in);
+ }
return YAFFS_FAIL;
}
-static int yaffs_DeleteSymLink(yaffs_Object * in)
+static int yaffs_DeleteSymLink(yaffs_Object *in)
{
YFREE(in->variant.symLinkVariant.alias);
return yaffs_DoGenericObjectDeletion(in);
}
-static int yaffs_DeleteHardLink(yaffs_Object * in)
+static int yaffs_DeleteHardLink(yaffs_Object *in)
{
- /* remove this hardlink from the list assocaited with the equivalent
- * object
- */
- ylist_del_init(&in->hardLinks);
- return yaffs_DoGenericObjectDeletion(in);
+ /* remove this hardlink from the list assocaited with the equivalent
+ * object
+ */
+ ylist_del_init(&in->hardLinks);
+ return yaffs_DoGenericObjectDeletion(in);
}
-int yaffs_DeleteObject(yaffs_Object * obj)
+int yaffs_DeleteObject(yaffs_Object *obj)
{
int retVal = -1;
switch (obj->variantType) {
return retVal;
}
-static int yaffs_UnlinkWorker(yaffs_Object * obj)
+static int yaffs_UnlinkWorker(yaffs_Object *obj)
{
int immediateDeletion = 0;
*/
yaffs_Object *hl;
- int retVal;
- YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
+ int retVal;
+ YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
- hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks);
+ hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks);
- ylist_del_init(&hl->hardLinks);
- ylist_del_init(&hl->siblings);
+ ylist_del_init(&hl->hardLinks);
+ ylist_del_init(&hl->siblings);
- yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
+ yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0);
}
-static int yaffs_UnlinkObject( yaffs_Object *obj)
+static int yaffs_UnlinkObject(yaffs_Object *obj)
{
if (obj && obj->unlinkAllowed) {
return YAFFS_FAIL;
}
-int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name)
+int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name)
{
yaffs_Object *obj;
/*----------------------- Initialisation Scanning ---------------------- */
-static void yaffs_HandleShadowedObject(yaffs_Device * dev, int objId,
- int backwardScanning)
+static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId,
+ int backwardScanning)
{
yaffs_Object *obj;
{
yaffs_Object *hl;
yaffs_Object *in;
-
+
while (hardList) {
hl = hardList;
hardList = (yaffs_Object *) (hardList->hardLinks.next);
hl->variant.hardLinkVariant.
equivalentObjectId);
- if (in) {
- /* Add the hardlink pointers */
- hl->variant.hardLinkVariant.equivalentObject = in;
- ylist_add(&hl->hardLinks, &in->hardLinks);
- } else {
- /* Todo Need to report/handle this better.
- * Got a problem... hardlink to a non-existant object
- */
- hl->variant.hardLinkVariant.equivalentObject = NULL;
- YINIT_LIST_HEAD(&hl->hardLinks);
-
- }
+ if (in) {
+ /* Add the hardlink pointers */
+ hl->variant.hardLinkVariant.equivalentObject = in;
+ ylist_add(&hl->hardLinks, &in->hardLinks);
+ } else {
+ /* Todo Need to report/handle this better.
+ * Got a problem... hardlink to a non-existant object
+ */
+ hl->variant.hardLinkVariant.equivalentObject = NULL;
+ YINIT_LIST_HEAD(&hl->hardLinks);
+ }
}
-
}
-static int ybicmp(const void *a, const void *b){
- register int aseq = ((yaffs_BlockIndex *)a)->seq;
- register int bseq = ((yaffs_BlockIndex *)b)->seq;
- register int ablock = ((yaffs_BlockIndex *)a)->block;
- register int bblock = ((yaffs_BlockIndex *)b)->block;
- if( aseq == bseq )
- return ablock - bblock;
- else
- return aseq - bseq;
-
+static int ybicmp(const void *a, const void *b)
+{
+ register int aseq = ((yaffs_BlockIndex *)a)->seq;
+ register int bseq = ((yaffs_BlockIndex *)b)->seq;
+ register int ablock = ((yaffs_BlockIndex *)a)->block;
+ register int bblock = ((yaffs_BlockIndex *)b)->block;
+ if (aseq == bseq)
+ return ablock - bblock;
+ else
+ return aseq - bseq;
}
yaffs_DeleteObject(l);
}
}
-
+
ylist_for_each_safe(i, n,
&dev->deletedDir->variant.directoryVariant.children) {
if (i) {
}
-static int yaffs_Scan(yaffs_Device * dev)
+static int yaffs_Scan(yaffs_Device *dev)
{
yaffs_ExtendedTags tags;
int blk;
yaffs_ObjectHeader *oh;
yaffs_Object *in;
yaffs_Object *parent;
-
+
int alloc_failed = 0;
-
+
struct yaffs_ShadowFixerStruct *shadowFixerList = NULL;
-
+
__u8 *chunkData;
-
-
+
+
T(YAFFS_TRACE_SCAN,
(TSTR("yaffs_Scan starts intstartblk %d intendblk %d..." TENDSTR),
dev->internalStartBlock, dev->internalEndBlock));
bi->blockState = state;
bi->sequenceNumber = sequenceNumber;
- if(bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
+ if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
bi->blockState = state = YAFFS_BLOCK_STATE_DEAD;
T(YAFFS_TRACE_SCAN_DEBUG,
(TSTR("Block empty " TENDSTR)));
dev->nErasedBlocks++;
dev->nFreeChunks += dev->nChunksPerBlock;
- }
+ }
}
startIterator = dev->internalStartBlock;
/* For each block.... */
for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator;
blockIterator++) {
-
+
+ YYIELD();
+
YYIELD();
- YYIELD();
-
blk = blockIterator;
bi = yaffs_GetBlockInfo(dev, blk);
/*T((" %d %d deleted\n",blk,c)); */
} else if (!tags.chunkUsed) {
/* An unassigned chunk in the block
- * This means that either the block is empty or
+ * This means that either the block is empty or
* this is the one being allocated from
*/
state = YAFFS_BLOCK_STATE_ALLOCATING;
dev->allocationBlock = blk;
dev->allocationPage = c;
- dev->allocationBlockFinder = blk;
+ dev->allocationBlockFinder = blk;
/* Set it to here to encourage the allocator to go forth from here. */
-
+
}
dev->nFreeChunks += (dev->nChunksPerBlock - c);
/* PutChunkIntoFile checks for a clash (two data chunks with
* the same chunkId).
*/
-
- if(!in)
+
+ if (!in)
alloc_failed = 1;
- if(in){
- if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1))
+ if (in) {
+ if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1))
alloc_failed = 1;
}
-
+
endpos =
(tags.chunkId - 1) * dev->nDataBytesPerChunk +
tags.byteCount;
- if (in &&
+ if (in &&
in->variantType == YAFFS_OBJECT_TYPE_FILE
&& in->variant.fileVariant.scannedFileSize <
endpos) {
tags.objectId);
if (in && in->variantType != oh->type) {
/* This should not happen, but somehow
- * Wev'e ended up with an objectId that has been reused but not yet
+ * Wev'e ended up with an objectId that has been reused but not yet
* deleted, and worse still it has changed type. Delete the old object.
*/
objectId,
oh->type);
- if(!in)
+ if (!in)
alloc_failed = 1;
-
+
if (in && oh->shadowsObject > 0) {
-
+
struct yaffs_ShadowFixerStruct *fixer;
fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct));
- if(fixer){
- fixer-> next = shadowFixerList;
+ if (fixer) {
+ fixer->next = shadowFixerList;
shadowFixerList = fixer;
fixer->objectId = tags.objectId;
fixer->shadowedId = oh->shadowsObject;
}
-
+
}
if (in && in->valid) {
yaffs_FindOrCreateObjectByNumber
(dev, oh->parentObjectId,
YAFFS_OBJECT_TYPE_DIRECTORY);
- if(!parent)
+ if (!parent)
alloc_failed = 1;
if (parent && parent->variantType ==
YAFFS_OBJECT_TYPE_UNKNOWN) {
- /* Set up as a directory */
- parent->variantType =
- YAFFS_OBJECT_TYPE_DIRECTORY;
- YINIT_LIST_HEAD(&parent->variant.
- directoryVariant.
- children);
- } else if (!parent || parent->variantType !=
- YAFFS_OBJECT_TYPE_DIRECTORY)
- {
+ /* Set up as a directory */
+ parent->variantType =
+ YAFFS_OBJECT_TYPE_DIRECTORY;
+ YINIT_LIST_HEAD(&parent->variant.
+ directoryVariant.
+ children);
+ } else if (!parent || parent->variantType !=
+ YAFFS_OBJECT_TYPE_DIRECTORY) {
/* Hoosterman, another problem....
* We're trying to use a non-directory as a directory
*/
* Since we might scan a hardlink before its equivalent object is scanned
* we put them all in a list.
* After scanning is complete, we should have all the objects, so we run through this
- * list and fix up all the chains.
+ * list and fix up all the chains.
*/
switch (in->variantType) {
- case YAFFS_OBJECT_TYPE_UNKNOWN:
+ case YAFFS_OBJECT_TYPE_UNKNOWN:
/* Todo got a problem */
break;
case YAFFS_OBJECT_TYPE_FILE:
break;
case YAFFS_OBJECT_TYPE_HARDLINK:
in->variant.hardLinkVariant.
- equivalentObjectId =
- oh->equivalentObjectId;
- in->hardLinks.next =
- (struct ylist_head *)
- hardList;
- hardList = in;
- break;
+ equivalentObjectId =
+ oh->equivalentObjectId;
+ in->hardLinks.next =
+ (struct ylist_head *)
+ hardList;
+ hardList = in;
+ break;
case YAFFS_OBJECT_TYPE_DIRECTORY:
/* Do nothing */
break;
case YAFFS_OBJECT_TYPE_SPECIAL:
/* Do nothing */
break;
- case YAFFS_OBJECT_TYPE_SYMLINK:
+ case YAFFS_OBJECT_TYPE_SYMLINK:
in->variant.symLinkVariant.alias =
yaffs_CloneString(oh->alias);
- if(!in->variant.symLinkVariant.alias)
+ if (!in->variant.symLinkVariant.alias)
alloc_failed = 1;
break;
}
/*
- if (parent == dev->deletedDir) {
+ if (parent == dev->deletedDir) {
yaffs_DestroyObject(in);
bi->hasShrinkHeader = 1;
}
}
-
+
/* Ok, we've done all the scanning.
* Fix up the hard link chains.
- * We should now have scanned all the objects, now it's time to add these
+ * We should now have scanned all the objects, now it's time to add these
* hardlinks.
*/
- yaffs_HardlinkFixup(dev,hardList);
-
+ yaffs_HardlinkFixup(dev, hardList);
+
/* Fix up any shadowed objects */
{
struct yaffs_ShadowFixerStruct *fixer;
yaffs_Object *obj;
-
- while(shadowFixerList){
+
+ while (shadowFixerList) {
fixer = shadowFixerList;
shadowFixerList = fixer->next;
/* Complete the rename transaction by deleting the shadowed object
* then setting the object header to unshadowed.
*/
- obj = yaffs_FindObjectByNumber(dev,fixer->shadowedId);
+ obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId);
if(obj)
yaffs_DeleteObject(obj);
- obj = yaffs_FindObjectByNumber(dev,fixer->objectId);
+ obj = yaffs_FindObjectByNumber(dev, fixer->objectId);
if(obj){
- yaffs_UpdateObjectHeader(obj,NULL,1,0,0);
+ yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0);
}
-
+
YFREE(fixer);
}
}
yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
- if(alloc_failed){
+ if (alloc_failed) {
return YAFFS_FAIL;
}
-
+
T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR)));
-
+
return YAFFS_OK;
}
int result;
int alloc_failed = 0;
- if(!in)
+ if (!in)
return;
-
+
dev = in->myDev;
-
+
#if 0
- T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR),
+ T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR),
in->objectId,
in->lazyLoaded ? "not yet" : "already"));
#endif
- if(in->lazyLoaded && in->hdrChunk > 0){
+ if (in->lazyLoaded && in->hdrChunk > 0) {
in->lazyLoaded = 0;
chunkData = yaffs_GetTempBuffer(dev, __LINE__);
- result = yaffs_ReadChunkWithTagsFromNAND(dev,in->hdrChunk,chunkData,&tags);
+ result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags);
oh = (yaffs_ObjectHeader *) chunkData;
in->yst_mode = oh->yst_mode;
in->yst_mtime = oh->yst_mtime;
in->yst_ctime = oh->yst_ctime;
in->yst_rdev = oh->yst_rdev;
-
+
#endif
yaffs_SetObjectName(in, oh->name);
-
- if(in->variantType == YAFFS_OBJECT_TYPE_SYMLINK){
+
+ if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
in->variant.symLinkVariant.alias =
yaffs_CloneString(oh->alias);
- if(!in->variant.symLinkVariant.alias)
+ if (!in->variant.symLinkVariant.alias)
alloc_failed = 1; /* Not returned to caller */
}
-
- yaffs_ReleaseTempBuffer(dev,chunkData, __LINE__);
+
+ yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
}
}
-static int yaffs_ScanBackwards(yaffs_Device * dev)
+static int yaffs_ScanBackwards(yaffs_Device *dev)
{
yaffs_ExtendedTags tags;
int blk;
int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
int itsUnlinked;
__u8 *chunkData;
-
+
int fileSize;
int isShrink;
int foundChunksInBlock;
int equivalentObjectId;
int alloc_failed = 0;
-
+
yaffs_BlockIndex *blockIndex = NULL;
int altBlockIndex = 0;
dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex));
-
- if(!blockIndex) {
+
+ if (!blockIndex) {
blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex));
altBlockIndex = 1;
}
-
- if(!blockIndex) {
+
+ if (!blockIndex) {
T(YAFFS_TRACE_SCAN,
(TSTR("yaffs_Scan() could not allocate block index!" TENDSTR)));
return YAFFS_FAIL;
}
-
+
dev->blocksInCheckpoint = 0;
-
+
chunkData = yaffs_GetTempBuffer(dev, __LINE__);
/* Scan all the blocks to determine their state */
bi->blockState = state;
bi->sequenceNumber = sequenceNumber;
- if(bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA)
+ if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA)
bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT;
- if(bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
+ if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
bi->blockState = state = YAFFS_BLOCK_STATE_DEAD;
-
+
T(YAFFS_TRACE_SCAN_DEBUG,
(TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
state, sequenceNumber));
-
- if(state == YAFFS_BLOCK_STATE_CHECKPOINT){
+
+ if (state == YAFFS_BLOCK_STATE_CHECKPOINT) {
dev->blocksInCheckpoint++;
-
+
} else if (state == YAFFS_BLOCK_STATE_DEAD) {
T(YAFFS_TRACE_BAD_BLOCKS,
(TSTR("block %d is bad" TENDSTR), blk));
}
#else
{
- /* Dungy old bubble sort... */
-
+ /* Dungy old bubble sort... */
+
yaffs_BlockIndex temp;
int i;
int j;
YYIELD();
- T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR)));
+ T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR)));
/* Now scan the blocks looking at the data. */
startIterator = 0;
/* For each block.... backwards */
for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator;
- blockIterator--) {
- /* Cooperative multitasking! This loop can run for so
+ blockIterator--) {
+ /* Cooperative multitasking! This loop can run for so
long that watchdog timers expire. */
- YYIELD();
+ YYIELD();
/* get the block to scan in the correct order */
blk = blockIndex[blockIterator].block;
bi = yaffs_GetBlockInfo(dev, blk);
-
-
+
+
state = bi->blockState;
deleted = 0;
/* For each chunk in each block that needs scanning.... */
foundChunksInBlock = 0;
- for (c = dev->nChunksPerBlock - 1;
+ for (c = dev->nChunksPerBlock - 1;
!alloc_failed && c >= 0 &&
(state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
state == YAFFS_BLOCK_STATE_ALLOCATING); c--) {
- /* Scan backwards...
+ /* Scan backwards...
* Read the tags and decide what to do
*/
-
+
chunk = blk * dev->nChunksPerBlock + c;
result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL,
* it is a chunk that was skipped due to failing the erased
* check. Just skip it so that it can be deleted.
* But, more typically, We get here when this is an unallocated
- * chunk and his means that either the block is empty or
+ * chunk and his means that either the block is empty or
* this is the one being allocated from
*/
- if(foundChunksInBlock)
- {
+ if (foundChunksInBlock) {
/* This is a chunk that was skipped due to failing the erased check */
-
} else if (c == 0) {
/* We're looking at the first chunk in the block so the block is unused */
state = YAFFS_BLOCK_STATE_EMPTY;
} else {
if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
state == YAFFS_BLOCK_STATE_ALLOCATING) {
- if(dev->sequenceNumber == bi->sequenceNumber) {
+ if (dev->sequenceNumber == bi->sequenceNumber) {
/* this is the block being allocated from */
-
+
T(YAFFS_TRACE_SCAN,
(TSTR
(" Allocating from %d %d"
state = YAFFS_BLOCK_STATE_ALLOCATING;
dev->allocationBlock = blk;
dev->allocationPage = c;
- dev->allocationBlockFinder = blk;
- }
- else {
+ dev->allocationBlockFinder = blk;
+ } else {
/* This is a partially written block that is not
* the current allocation block. This block must have
* had a write failure, so set up for retirement.
*/
-
+
/* bi->needsRetiring = 1; ??? TODO */
bi->gcPrioritise = 1;
-
+
T(YAFFS_TRACE_ALWAYS,
(TSTR("Partially written block %d detected" TENDSTR),
blk));
}
-
}
-
}
dev->nFreeChunks++;
-
- } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED){
+
+ } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) {
T(YAFFS_TRACE_SCAN,
(TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR),
blk, c));
dev->nFreeChunks++;
- }else if (tags.chunkId > 0) {
+ } else if (tags.chunkId > 0) {
/* chunkId > 0 so it is a data chunk... */
unsigned int endpos;
__u32 chunkBase =
(tags.chunkId - 1) * dev->nDataBytesPerChunk;
-
+
foundChunksInBlock = 1;
tags.
objectId,
YAFFS_OBJECT_TYPE_FILE);
- if(!in){
+ if (!in) {
/* Out of memory */
alloc_failed = 1;
}
-
+
if (in &&
in->variantType == YAFFS_OBJECT_TYPE_FILE
&& chunkBase <
in->variant.fileVariant.shrinkSize) {
/* This has not been invalidated by a resize */
- if(!yaffs_PutChunkIntoFile(in, tags.chunkId,
- chunk, -1)){
+ if (!yaffs_PutChunkIntoFile(in, tags.chunkId,
+ chunk, -1)) {
alloc_failed = 1;
}
- /* File size is calculated by looking at the data chunks if we have not
+ /* File size is calculated by looking at the data chunks if we have not
* seen an object header yet. Stop this practice once we find an object header.
*/
endpos =
(tags.chunkId -
1) * dev->nDataBytesPerChunk +
tags.byteCount;
-
+
if (!in->valid && /* have not got an object header yet */
in->variant.fileVariant.
scannedFileSize < endpos) {
scannedFileSize;
}
- } else if(in) {
+ } else if (in) {
/* This chunk has been invalidated by a resize, so delete */
yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
tags.extraShadows ||
(!in->valid &&
(tags.objectId == YAFFS_OBJECTID_ROOT ||
- tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))
- ) {
+ tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) {
/* If we don't have valid info then we need to read the chunk
- * TODO In future we can probably defer reading the chunk and
+ * TODO In future we can probably defer reading the chunk and
* living with invalid data until needed.
*/
NULL);
oh = (yaffs_ObjectHeader *) chunkData;
-
- if(dev->inbandTags){
+
+ if (dev->inbandTags) {
/* Fix up the header if they got corrupted by inband tags */
oh->shadowsObject = oh->inbandShadowsObject;
oh->isShrink = oh->inbandIsShrink;
if (in->valid) {
/* We have already filled this one.
- * We have a duplicate that will be discarded, but
+ * We have a duplicate that will be discarded, but
* we first have to suck out resize info if it is a file.
*/
- if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) &&
- ((oh &&
- oh-> type == YAFFS_OBJECT_TYPE_FILE)||
+ if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) &&
+ ((oh &&
+ oh->type == YAFFS_OBJECT_TYPE_FILE) ||
(tags.extraHeaderInfoAvailable &&
- tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))
- ) {
+ tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) {
__u32 thisSize =
(oh) ? oh->fileSize : tags.
extraFileLength;
(oh) ? oh->
parentObjectId : tags.
extraParentObjectId;
-
-
+
+
isShrink =
(oh) ? oh->isShrink : tags.
extraIsShrinkHeader;
YAFFS_OBJECTID_LOSTNFOUND)) {
/* We only load some info, don't fiddle with directory structure */
in->valid = 1;
-
- if(oh) {
+
+ if (oh) {
in->variantType = oh->type;
in->yst_mode = oh->yst_mode;
in->yst_mtime = oh->yst_mtime;
in->yst_ctime = oh->yst_ctime;
in->yst_rdev = oh->yst_rdev;
-
+
#endif
} else {
in->variantType = tags.extraObjectType;
in->valid = 1;
in->hdrChunk = chunk;
- if(oh) {
+ if (oh) {
in->variantType = oh->type;
in->yst_mode = oh->yst_mode;
in->yst_rdev = oh->yst_rdev;
#endif
- if (oh->shadowsObject > 0)
+ if (oh->shadowsObject > 0)
yaffs_HandleShadowedObject(dev,
oh->
shadowsObject,
1);
-
+
yaffs_SetObjectName(in, oh->name);
parent =
yaffs_FindOrCreateObjectByNumber
- (dev, oh->parentObjectId,
- YAFFS_OBJECT_TYPE_DIRECTORY);
+ (dev, oh->parentObjectId,
+ YAFFS_OBJECT_TYPE_DIRECTORY);
fileSize = oh->fileSize;
- isShrink = oh->isShrink;
+ isShrink = oh->isShrink;
equivalentObjectId = oh->equivalentObjectId;
- }
- else {
+ } else {
in->variantType = tags.extraObjectType;
parent =
yaffs_FindOrCreateObjectByNumber
- (dev, tags.extraParentObjectId,
- YAFFS_OBJECT_TYPE_DIRECTORY);
+ (dev, tags.extraParentObjectId,
+ YAFFS_OBJECT_TYPE_DIRECTORY);
fileSize = tags.extraFileLength;
isShrink = tags.extraIsShrinkHeader;
equivalentObjectId = tags.extraEquivalentObjectId;
if (parent && parent->variantType ==
YAFFS_OBJECT_TYPE_UNKNOWN) {
- /* Set up as a directory */
- parent->variantType =
- YAFFS_OBJECT_TYPE_DIRECTORY;
- YINIT_LIST_HEAD(&parent->variant.
- directoryVariant.
- children);
- } else if (!parent || parent->variantType !=
- YAFFS_OBJECT_TYPE_DIRECTORY)
- {
+ /* Set up as a directory */
+ parent->variantType =
+ YAFFS_OBJECT_TYPE_DIRECTORY;
+ YINIT_LIST_HEAD(&parent->variant.
+ directoryVariant.
+ children);
+ } else if (!parent || parent->variantType !=
+ YAFFS_OBJECT_TYPE_DIRECTORY) {
/* Hoosterman, another problem....
* We're trying to use a non-directory as a directory
*/
* Since we might scan a hardlink before its equivalent object is scanned
* we put them all in a list.
* After scanning is complete, we should have all the objects, so we run
- * through this list and fix up all the chains.
+ * through this list and fix up all the chains.
*/
switch (in->variantType) {
- case YAFFS_OBJECT_TYPE_UNKNOWN:
+ case YAFFS_OBJECT_TYPE_UNKNOWN:
/* Todo got a problem */
break;
case YAFFS_OBJECT_TYPE_FILE:
scannedFileSize < fileSize) {
/* This covers the case where the file size is greater
* than where the data is
- * This will happen if the file is resized to be larger
+ * This will happen if the file is resized to be larger
* than its current data extents.
*/
in->variant.fileVariant.fileSize = fileSize;
break;
case YAFFS_OBJECT_TYPE_HARDLINK:
- if(!itsUnlinked) {
- in->variant.hardLinkVariant.equivalentObjectId =
- equivalentObjectId;
- in->hardLinks.next =
- (struct ylist_head *) hardList;
- hardList = in;
- }
- break;
+ if (!itsUnlinked) {
+ in->variant.hardLinkVariant.equivalentObjectId =
+ equivalentObjectId;
+ in->hardLinks.next =
+ (struct ylist_head *) hardList;
+ hardList = in;
+ }
+ break;
case YAFFS_OBJECT_TYPE_DIRECTORY:
/* Do nothing */
break;
/* Do nothing */
break;
case YAFFS_OBJECT_TYPE_SYMLINK:
- if(oh){
- in->variant.symLinkVariant.alias =
- yaffs_CloneString(oh->
- alias);
- if(!in->variant.symLinkVariant.alias)
- alloc_failed = 1;
+ if (oh) {
+ in->variant.symLinkVariant.alias =
+ yaffs_CloneString(oh->alias);
+ if (!in->variant.symLinkVariant.alias)
+ alloc_failed = 1;
}
break;
}
}
-
+
}
} /* End of scanning for each chunk */
}
- if (altBlockIndex)
+ if (altBlockIndex)
YFREE_ALT(blockIndex);
else
YFREE(blockIndex);
-
+
/* Ok, we've done all the scanning.
* Fix up the hard link chains.
- * We should now have scanned all the objects, now it's time to add these
+ * We should now have scanned all the objects, now it's time to add these
* hardlinks.
*/
- yaffs_HardlinkFixup(dev,hardList);
-
+ yaffs_HardlinkFixup(dev, hardList);
+
yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
-
- if(alloc_failed){
+
+ if (alloc_failed) {
return YAFFS_FAIL;
}
static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj)
{
- struct ylist_head *lh;
- yaffs_Object *listObj;
-
- int count = 0;
+ struct ylist_head *lh;
+ yaffs_Object *listObj;
- if(!obj){
+ int count = 0;
+
+ if (!obj) {
T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR)));
YBUG();
return;
}
- if(yaffs_SkipVerification(obj->myDev))
- return;
+ if (yaffs_SkipVerification(obj->myDev))
+ return;
- if(!obj->parent){
+ if (!obj->parent) {
T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR)));
YBUG();
return;
}
-
- if(obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){
+
+ if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR)));
YBUG();
}
-
- /* Iterate through the objects in each hash entry */
-
- ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) {
+
+ /* Iterate through the objects in each hash entry */
+
+ ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) {
if (lh) {
- listObj = ylist_entry(lh, yaffs_Object, siblings);
+ listObj = ylist_entry(lh, yaffs_Object, siblings);
yaffs_VerifyObject(listObj);
- if(obj == listObj)
- count ++;
- }
+ if (obj == listObj)
+ count++;
+ }
}
-
- if(count != 1){
- T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR),count));
+
+ if (count != 1) {
+ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count));
YBUG();
}
-
}
static void yaffs_VerifyDirectory(yaffs_Object *directory)
{
-
- struct ylist_head *lh;
- yaffs_Object *listObj;
+ struct ylist_head *lh;
+ yaffs_Object *listObj;
- if(!directory){
+ if (!directory) {
YBUG();
return;
}
- if(yaffs_SkipFullVerification(directory->myDev))
- return;
+ if (yaffs_SkipFullVerification(directory->myDev))
+ return;
-
- if(directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){
- T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR),directory->variantType));
+ if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType));
YBUG();
}
-
- /* Iterate through the objects in each hash entry */
-
- ylist_for_each(lh, &directory->variant.directoryVariant.children) {
+
+ /* Iterate through the objects in each hash entry */
+
+ ylist_for_each(lh, &directory->variant.directoryVariant.children) {
if (lh) {
- listObj = ylist_entry(lh, yaffs_Object, siblings);
- if(listObj->parent != directory){
- T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR),listObj->parent));
+ listObj = ylist_entry(lh, yaffs_Object, siblings);
+ if (listObj->parent != directory) {
+ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent));
YBUG();
}
yaffs_VerifyObjectInDirectory(listObj);
- }
- }
-
+ }
+ }
}
-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj)
+static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj)
{
yaffs_Device *dev = obj->myDev;
yaffs_Object *parent;
-
- yaffs_VerifyObjectInDirectory(obj);
+
+ yaffs_VerifyObjectInDirectory(obj);
parent = obj->parent;
-
+
yaffs_VerifyDirectory(parent);
- if(dev && dev->removeObjectCallback)
- dev->removeObjectCallback(obj);
+ if (dev && dev->removeObjectCallback)
+ dev->removeObjectCallback(obj);
-
- ylist_del_init(&obj->siblings);
- obj->parent = NULL;
- yaffs_VerifyDirectory(parent);
+ ylist_del_init(&obj->siblings);
+ obj->parent = NULL;
+ yaffs_VerifyDirectory(parent);
}
-static void yaffs_AddObjectToDirectory(yaffs_Object * directory,
- yaffs_Object * obj)
+static void yaffs_AddObjectToDirectory(yaffs_Object *directory,
+ yaffs_Object *obj)
{
-
if (!directory) {
T(YAFFS_TRACE_ALWAYS,
(TSTR
YBUG();
}
- if (obj->siblings.prev == NULL) {
- /* Not initialised */
- YBUG();
+ if (obj->siblings.prev == NULL) {
+ /* Not initialised */
+ YBUG();
+ }
- }
yaffs_VerifyDirectory(directory);
yaffs_RemoveObjectFromDirectory(obj);
-
-
- /* Now add it */
- ylist_add(&obj->siblings, &directory->variant.directoryVariant.children);
- obj->parent = directory;
- if (directory == obj->myDev->unlinkedDir
- || directory == obj->myDev->deletedDir) {
+
+ /* Now add it */
+ ylist_add(&obj->siblings, &directory->variant.directoryVariant.children);
+ obj->parent = directory;
+
+ if (directory == obj->myDev->unlinkedDir
+ || directory == obj->myDev->deletedDir) {
obj->unlinked = 1;
obj->myDev->nUnlinkedFiles++;
obj->renameAllowed = 0;
}
yaffs_VerifyDirectory(directory);
- yaffs_VerifyObjectInDirectory(obj);
-
-
+ yaffs_VerifyObjectInDirectory(obj);
}
-yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory,
- const YCHAR * name)
+yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory,
+ const YCHAR *name)
{
- int sum;
+ int sum;
- struct ylist_head *i;
- YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1];
+ struct ylist_head *i;
+ YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1];
- yaffs_Object *l;
+ yaffs_Object *l;
if (!name) {
return NULL;
YBUG();
}
- sum = yaffs_CalcNameSum(name);
+ sum = yaffs_CalcNameSum(name);
+
+ ylist_for_each(i, &directory->variant.directoryVariant.children) {
+ if (i) {
+ l = ylist_entry(i, yaffs_Object, siblings);
+
+ if (l->parent != directory)
+ YBUG();
- ylist_for_each(i, &directory->variant.directoryVariant.children) {
- if (i) {
- l = ylist_entry(i, yaffs_Object, siblings);
-
- if(l->parent != directory)
- YBUG();
-
- yaffs_CheckObjectDetailsLoaded(l);
+ yaffs_CheckObjectDetailsLoaded(l);
/* Special case for lost-n-found */
if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) {
return l;
}
- } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0){
+ } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) {
/* LostnFound chunk called Objxxx
* Do a real check
*/
yaffs_GetObjectName(l, buffer,
YAFFS_MAX_NAME_LENGTH);
- if (yaffs_strncmp(name, buffer,YAFFS_MAX_NAME_LENGTH) == 0) {
+ if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0) {
return l;
}
-
}
}
}
#if 0
-int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir,
- int (*fn) (yaffs_Object *))
+int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir,
+ int (*fn) (yaffs_Object *))
{
- struct ylist_head *i;
- yaffs_Object *l;
+ struct ylist_head *i;
+ yaffs_Object *l;
- if (!theDir) {
+ if (!theDir) {
T(YAFFS_TRACE_ALWAYS,
(TSTR
("tragedy: yaffs_FindObjectByName: null pointer directory"
return YAFFS_FAIL;
}
- ylist_for_each(i, &theDir->variant.directoryVariant.children) {
- if (i) {
- l = ylist_entry(i, yaffs_Object, siblings);
- if (l && !fn(l)) {
- return YAFFS_FAIL;
- }
+ ylist_for_each(i, &theDir->variant.directoryVariant.children) {
+ if (i) {
+ l = ylist_entry(i, yaffs_Object, siblings);
+ if (l && !fn(l)) {
+ return YAFFS_FAIL;
+ }
}
}
* actual object.
*/
-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj)
+yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj)
{
if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
/* We want the object id of the equivalent object, not this one */
yaffs_CheckObjectDetailsLoaded(obj);
}
return obj;
-
}
-int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize)
+int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize)
{
memset(name, 0, buffSize * sizeof(YCHAR));
-
+
yaffs_CheckObjectDetailsLoaded(obj);
if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
YCHAR *x = &numString[19];
unsigned v = obj->objectId;
numString[19] = 0;
- while(v>0){
+ while (v > 0) {
x--;
*x = '0' + (v % 10);
v /= 10;
}
/* make up a name */
yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX);
- yaffs_strcat(locName,x);
+ yaffs_strcat(locName, x);
yaffs_strncpy(name, locName, buffSize - 1);
}
return yaffs_strlen(name);
}
-int yaffs_GetObjectFileLength(yaffs_Object * obj)
+int yaffs_GetObjectFileLength(yaffs_Object *obj)
{
-
/* Dereference any hard linking */
obj = yaffs_GetEquivalentObject(obj);
}
}
-int yaffs_GetObjectLinkCount(yaffs_Object * obj)
+int yaffs_GetObjectLinkCount(yaffs_Object *obj)
{
- int count = 0;
- struct ylist_head *i;
-
- if (!obj->unlinked) {
- count++; /* the object itself */
- }
- ylist_for_each(i, &obj->hardLinks) {
- count++; /* add the hard links; */
- }
- return count;
+ int count = 0;
+ struct ylist_head *i;
+ if (!obj->unlinked) {
+ count++; /* the object itself */
+ }
+ ylist_for_each(i, &obj->hardLinks) {
+ count++; /* add the hard links; */
+ }
+ return count;
}
-int yaffs_GetObjectInode(yaffs_Object * obj)
+int yaffs_GetObjectInode(yaffs_Object *obj)
{
obj = yaffs_GetEquivalentObject(obj);
return obj->objectId;
}
-unsigned yaffs_GetObjectType(yaffs_Object * obj)
+unsigned yaffs_GetObjectType(yaffs_Object *obj)
{
obj = yaffs_GetEquivalentObject(obj);
}
}
-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj)
+YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj)
{
obj = yaffs_GetEquivalentObject(obj);
if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
#ifndef CONFIG_YAFFS_WINCE
-int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr)
+int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr)
{
unsigned int valid = attr->ia_valid;
return YAFFS_OK;
}
-int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr)
+int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr)
{
unsigned int valid = 0;
attr->ia_valid = valid;
return YAFFS_OK;
-
}
#endif
#if 0
-int yaffs_DumpObject(yaffs_Object * obj)
+int yaffs_DumpObject(yaffs_Object *obj)
{
YCHAR name[257];
/*---------------------------- Initialisation code -------------------------------------- */
-static int yaffs_CheckDevFunctions(const yaffs_Device * dev)
+static int yaffs_CheckDevFunctions(const yaffs_Device *dev)
{
/* Common functions, gotta have */
static int yaffs_CreateInitialDirectories(yaffs_Device *dev)
{
/* Initialise the unlinked, deleted, root and lost and found directories */
-
+
dev->lostNFoundDir = dev->rootDir = NULL;
dev->unlinkedDir = dev->deletedDir = NULL;
dev->unlinkedDir =
yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR);
-
+
dev->deletedDir =
yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR);
dev->lostNFoundDir =
yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND,
YAFFS_LOSTNFOUND_MODE | S_IFDIR);
-
- if(dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir){
+
+ if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) {
yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir);
return YAFFS_OK;
}
-
+
return YAFFS_FAIL;
}
-int yaffs_GutsInitialise(yaffs_Device * dev)
+int yaffs_GutsInitialise(yaffs_Device *dev)
{
int init_failed = 0;
unsigned x;
dev->blockOffset = 0;
dev->chunkOffset = 0;
dev->nFreeChunks = 0;
-
+
dev->gcBlock = -1;
if (dev->startBlock == 0) {
/* Check geometry parameters. */
- if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) ||
- (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) ||
- (dev->inbandTags && !dev->isYaffs2 ) ||
- dev->nChunksPerBlock < 2 ||
- dev->nReservedBlocks < 2 ||
- dev->internalStartBlock <= 0 ||
- dev->internalEndBlock <= 0 ||
- dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2) // otherwise it is too small
- ) {
+ if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) ||
+ (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) ||
+ (dev->inbandTags && !dev->isYaffs2) ||
+ dev->nChunksPerBlock < 2 ||
+ dev->nReservedBlocks < 2 ||
+ dev->internalStartBlock <= 0 ||
+ dev->internalEndBlock <= 0 ||
+ dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) { /* otherwise it is too small */
T(YAFFS_TRACE_ALWAYS,
(TSTR
("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d "
(TSTR("yaffs: InitialiseNAND failed" TENDSTR)));
return YAFFS_FAIL;
}
-
+
/* Sort out space for inband tags, if required */
- if(dev->inbandTags)
+ if (dev->inbandTags)
dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart);
- else
+ else
dev->nDataBytesPerChunk = dev->totalBytesPerChunk;
/* Got the right mix of functions? */
dev->isMounted = 1;
/* OK now calculate a few things for the device */
-
+
/*
- * Calculate all the chunk size manipulation numbers:
+ * Calculate all the chunk size manipulation numbers:
*/
x = dev->nDataBytesPerChunk;
/* We always use dev->chunkShift and dev->chunkDiv */
dev->chunkDiv = x;
/* We only use chunk mask if chunkDiv is 1 */
dev->chunkMask = (1<<dev->chunkShift) - 1;
-
+
/*
* Calculate chunkGroupBits.
* We need to find the next power of 2 > than internalEndBlock
*/
x = dev->nChunksPerBlock * (dev->internalEndBlock + 1);
-
+
bits = ShiftsGE(x);
-
+
/* Set up tnode width if wide tnodes are enabled. */
- if(!dev->wideTnodesDisabled){
+ if (!dev->wideTnodesDisabled) {
/* bits must be even so that we end up with 32-bit words */
- if(bits & 1)
+ if (bits & 1)
bits++;
- if(bits < 16)
+ if (bits < 16)
dev->tnodeWidth = 16;
else
dev->tnodeWidth = bits;
- }
- else
+ } else
dev->tnodeWidth = 16;
-
+
dev->tnodeMask = (1<<dev->tnodeWidth)-1;
-
+
/* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled),
* so if the bitwidth of the
* chunk range we're using is greater than 16 we need
* to figure out chunk shift and chunkGroupSize
*/
-
+
if (bits <= dev->tnodeWidth)
dev->chunkGroupBits = 0;
else
dev->chunkGroupBits = bits - dev->tnodeWidth;
-
+
dev->chunkGroupSize = 1 << dev->chunkGroupBits;
dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */
/* Initialise temporary buffers and caches. */
- if(!yaffs_InitialiseTempBuffers(dev))
+ if (!yaffs_InitialiseTempBuffers(dev))
init_failed = 1;
-
+
dev->srCache = NULL;
dev->gcCleanupList = NULL;
-
-
+
+
if (!init_failed &&
dev->nShortOpCaches > 0) {
int i;
}
dev->srCache = YMALLOC(srCacheBytes);
-
+
buf = (__u8 *) dev->srCache;
-
- if(dev->srCache)
- memset(dev->srCache,0,srCacheBytes);
-
+
+ if (dev->srCache)
+ memset(dev->srCache, 0, srCacheBytes);
+
for (i = 0; i < dev->nShortOpCaches && buf; i++) {
dev->srCache[i].object = NULL;
dev->srCache[i].lastUse = 0;
dev->srCache[i].dirty = 0;
dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk);
}
- if(!buf)
+ if (!buf)
init_failed = 1;
-
+
dev->srLastUse = 0;
}
dev->cacheHits = 0;
-
- if(!init_failed){
+
+ if (!init_failed) {
dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32));
- if(!dev->gcCleanupList)
+ if (!dev->gcCleanupList)
init_failed = 1;
}
if (dev->isYaffs2) {
dev->useHeaderFileSize = 1;
}
- if(!init_failed && !yaffs_InitialiseBlocks(dev))
+ if (!init_failed && !yaffs_InitialiseBlocks(dev))
init_failed = 1;
-
+
yaffs_InitialiseTnodes(dev);
yaffs_InitialiseObjects(dev);
- if(!init_failed && !yaffs_CreateInitialDirectories(dev))
+ if (!init_failed && !yaffs_CreateInitialDirectories(dev))
init_failed = 1;
- if(!init_failed){
+ if (!init_failed) {
/* Now scan the flash. */
if (dev->isYaffs2) {
- if(yaffs_CheckpointRestore(dev)) {
+ if (yaffs_CheckpointRestore(dev)) {
yaffs_CheckObjectDetailsLoaded(dev->rootDir);
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs: restored from checkpoint" TENDSTR)));
} else {
- /* Clean up the mess caused by an aborted checkpoint load
- * and scan backwards.
+ /* Clean up the mess caused by an aborted checkpoint load
+ * and scan backwards.
*/
yaffs_DeinitialiseBlocks(dev);
yaffs_DeinitialiseTnodes(dev);
yaffs_DeinitialiseObjects(dev);
-
-
+
+
dev->nErasedBlocks = 0;
dev->nFreeChunks = 0;
dev->allocationBlock = -1;
dev->nBackgroundDeletions = 0;
dev->oldestDirtySequence = 0;
- if(!init_failed && !yaffs_InitialiseBlocks(dev))
+ if (!init_failed && !yaffs_InitialiseBlocks(dev))
init_failed = 1;
-
+
yaffs_InitialiseTnodes(dev);
yaffs_InitialiseObjects(dev);
- if(!init_failed && !yaffs_CreateInitialDirectories(dev))
+ if (!init_failed && !yaffs_CreateInitialDirectories(dev))
init_failed = 1;
- if(!init_failed && !yaffs_ScanBackwards(dev))
+ if (!init_failed && !yaffs_ScanBackwards(dev))
init_failed = 1;
}
- }else
- if(!yaffs_Scan(dev))
+ } else if (!yaffs_Scan(dev))
init_failed = 1;
yaffs_StripDeletedObjects(dev);
}
-
- if(init_failed){
+
+ if (init_failed) {
/* Clean up the mess */
T(YAFFS_TRACE_TRACING,
(TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR)));
yaffs_VerifyFreeChunks(dev);
yaffs_VerifyBlocks(dev);
-
+
T(YAFFS_TRACE_TRACING,
(TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR)));
}
-void yaffs_Deinitialise(yaffs_Device * dev)
+void yaffs_Deinitialise(yaffs_Device *dev)
{
if (dev->isMounted) {
int i;
dev->srCache) {
for (i = 0; i < dev->nShortOpCaches; i++) {
- if(dev->srCache[i].data)
+ if (dev->srCache[i].data)
YFREE(dev->srCache[i].data);
dev->srCache[i].data = NULL;
}
dev->isMounted = 0;
-
- if(dev->deinitialiseNAND)
+
+ if (dev->deinitialiseNAND)
dev->deinitialiseNAND(dev);
}
-
}
-static int yaffs_CountFreeChunks(yaffs_Device * dev)
+static int yaffs_CountFreeChunks(yaffs_Device *dev)
{
int nFree;
int b;
yaffs_BlockInfo *blk;
for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock;
- b++) {
+ b++) {
blk = yaffs_GetBlockInfo(dev, b);
switch (blk->blockState) {
default:
break;
}
-
}
return nFree;
}
-int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev)
+int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev)
{
/* This is what we report to the outside world */
#endif
nFree += dev->nDeletedFiles;
-
+
/* Now count the number of dirty chunks in the cache and subtract those */
{
nFree -= nDirtyCacheChunks;
nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock);
-
+
/* Now we figure out how much to reserve for the checkpoint and report that... */
blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
- if(blocksForCheckpoint < 0)
+ if (blocksForCheckpoint < 0)
blocksForCheckpoint = 0;
-
+
nFree -= (blocksForCheckpoint * dev->nChunksPerBlock);
if (nFree < 0)
static int yaffs_freeVerificationFailures;
-static void yaffs_VerifyFreeChunks(yaffs_Device * dev)
+static void yaffs_VerifyFreeChunks(yaffs_Device *dev)
{
int counted;
int difference;
-
- if(yaffs_SkipVerification(dev))
+
+ if (yaffs_SkipVerification(dev))
return;
-
+
counted = yaffs_CountFreeChunks(dev);
difference = dev->nFreeChunks - counted;
/*---------------------------------------- YAFFS test code ----------------------*/
-#define yaffs_CheckStruct(structure,syze, name) \
+#define yaffs_CheckStruct(structure, syze, name) \
do { \
- if(sizeof(structure) != syze) \
- { \
- T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\
- name,syze,sizeof(structure))); \
- return YAFFS_FAIL; \
+ if (sizeof(structure) != syze) { \
+ T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\
+ name, syze, sizeof(structure))); \
+ return YAFFS_FAIL; \
} \
- } while(0)
+ } while (0)
static int yaffs_CheckStructures(void)
{
/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */
/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */
#ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG
- yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode");
+ yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode");
#endif
#ifndef CONFIG_YAFFS_WINCE
- yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader");
+ yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader");
#endif
- return YAFFS_OK;
+ return YAFFS_OK;
}
projects / yaffs2.git / commitdiff