#include <asm/div64.h>
-
#include <linux/statfs.h>
#define UnlockPage(p) unlock_page(p)
#define WRITE_SIZE_STR "writesize"
#define WRITE_SIZE(mtd) ((mtd)->writesize)
-
static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
{
uint64_t result = partition_size;
do_div(result, block_size);
- return (uint32_t)result;
+ return (uint32_t) result;
}
#include <linux/uaccess.h>
#include "yportenv.h"
#include "yaffs_trace.h"
#include "yaffs_guts.h"
+#include "yaffs_attribs.h"
#include "yaffs_linux.h"
#define yaffs_dentry_to_obj(dptr) yaffs_inode_to_obj((dptr)->d_inode)
#define yaffs_super_to_dev(sb) ((struct yaffs_dev *)sb->s_fs_info)
-
#define update_dir_time(dir) do {\
(dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \
} while(0)
-
+
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);
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);
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);
static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- dev_t dev);
+ dev_t dev);
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);
#ifdef CONFIG_YAFFS_XATTR
int yaffs_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags);
+ const void *value, size_t size, int flags);
ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff,
- size_t size);
+ size_t size);
int yaffs_removexattr(struct dentry *dentry, const char *name);
ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size);
#endif
-
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);
-static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
- int buflen);
+static int yaffs_readlink(struct dentry *dentry, char __user * buffer,
+ int buflen);
void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias);
static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
static int yaffs_vfs_setattr(struct inode *, struct iattr *);
-
static struct address_space_operations yaffs_file_address_operations = {
.readpage = yaffs_readpage,
.writepage = yaffs_writepage,
.write_end = yaffs_write_end,
};
-
static const struct file_operations yaffs_file_operations = {
.read = do_sync_read,
.write = do_sync_write,
.llseek = generic_file_llseek,
};
-
-
static const struct inode_operations yaffs_file_inode_operations = {
.setattr = yaffs_setattr,
#ifdef CONFIG_YAFFS_XATTR
.write_super = yaffs_write_super,
};
-
-static int yaffs_vfs_setattr(struct inode *inode, struct iattr *attr)
+static int yaffs_vfs_setattr(struct inode *inode, struct iattr *attr)
{
- setattr_copy(inode,attr);
+ setattr_copy(inode, attr);
return 0;
}
-static int yaffs_vfs_setsize(struct inode *inode, loff_t newsize)
+static int yaffs_vfs_setsize(struct inode *inode, loff_t newsize)
{
- truncate_setsize(inode,newsize);
+ truncate_setsize(inode, newsize);
return 0;
}
{
return yaffs_gc_control;
}
-
+
static void yaffs_gross_lock(struct yaffs_dev *dev)
{
T(YAFFS_TRACE_LOCK, (TSTR("yaffs locking %p\n"), current));
- down(&(yaffs_dev_to_lc(dev)->gross_lock));
+ mutex_lock(&(yaffs_dev_to_lc(dev)->gross_lock));
T(YAFFS_TRACE_LOCK, (TSTR("yaffs locked %p\n"), current));
}
static void yaffs_gross_unlock(struct yaffs_dev *dev)
{
T(YAFFS_TRACE_LOCK, (TSTR("yaffs unlocking %p\n"), current));
- up(&(yaffs_dev_to_lc(dev)->gross_lock));
+ mutex_unlock(&(yaffs_dev_to_lc(dev)->gross_lock));
}
-
-
/* ExportFS support */
-static struct inode *
-yaffs2_nfs_get_inode(struct super_block *sb, uint64_t ino, uint32_t generation)
+static struct inode *yaffs2_nfs_get_inode(struct super_block *sb, uint64_t ino,
+ uint32_t generation)
{
return Y_IGET(sb, ino);
}
-static struct dentry *
-yaffs2_fh_to_dentry(struct super_block *sb, struct fid *fid, int fh_len, int fh_type)
+static struct dentry *yaffs2_fh_to_dentry(struct super_block *sb,
+ struct fid *fid, int fh_len,
+ int fh_type)
{
- return generic_fh_to_dentry(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode) ;
+ return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
+ yaffs2_nfs_get_inode);
}
-static struct dentry *
- yaffs2_fh_to_parent(struct super_block *sb, struct fid *fid, int fh_len, int fh_type)
+static struct dentry *yaffs2_fh_to_parent(struct super_block *sb,
+ struct fid *fid, int fh_len,
+ int fh_type)
{
- return generic_fh_to_parent(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode);
+ return generic_fh_to_parent(sb, fid, fh_len, fh_type,
+ yaffs2_nfs_get_inode);
}
struct dentry *yaffs2_get_parent(struct dentry *dentry)
* using the default functions of exportfs.
*/
-static struct export_operations yaffs_export_ops =
-{
+static struct export_operations yaffs_export_ops = {
.fh_to_dentry = yaffs2_fh_to_dentry,
.fh_to_parent = yaffs2_fh_to_parent,
.get_parent = yaffs2_get_parent,
-} ;
+};
/*-----------------------------------------------------------------*/
/* Directory search context allows us to unlock access to yaffs during
*
* Called at start of readdir.
*/
-static struct yaffs_search_context * yaffs_new_search(struct yaffs_obj *dir)
+static struct yaffs_search_context *yaffs_new_search(struct yaffs_obj *dir)
{
struct yaffs_dev *dev = dir->my_dev;
- struct yaffs_search_context *sc = YMALLOC(sizeof(struct yaffs_search_context));
- if(sc){
+ struct yaffs_search_context *sc =
+ YMALLOC(sizeof(struct yaffs_search_context));
+ if (sc) {
sc->dir_obj = dir;
sc->dev = dev;
- if( list_empty(&sc->dir_obj->variant.dir_variant.children))
+ if (list_empty(&sc->dir_obj->variant.dir_variant.children))
sc->next_return = NULL;
else
- sc->next_return = list_entry(
- dir->variant.dir_variant.children.next,
- struct yaffs_obj,siblings);
+ sc->next_return =
+ list_entry(dir->variant.dir_variant.children.next,
+ struct yaffs_obj, siblings);
INIT_LIST_HEAD(&sc->others);
- list_add(&sc->others,&(yaffs_dev_to_lc(dev)->search_contexts));
+ list_add(&sc->others, &(yaffs_dev_to_lc(dev)->search_contexts));
}
return sc;
}
/*
* yaffs_search_end() disposes of a search context and cleans up.
*/
-static void yaffs_search_end(struct yaffs_search_context * sc)
+static void yaffs_search_end(struct yaffs_search_context *sc)
{
- if(sc){
+ if (sc) {
list_del(&sc->others);
YFREE(sc);
}
*/
static void yaffs_search_advance(struct yaffs_search_context *sc)
{
- if(!sc)
- return;
+ if (!sc)
+ return;
- if( sc->next_return == NULL ||
- list_empty(&sc->dir_obj->variant.dir_variant.children))
- sc->next_return = NULL;
- else {
- struct list_head *next = sc->next_return->siblings.next;
+ if (sc->next_return == NULL ||
+ list_empty(&sc->dir_obj->variant.dir_variant.children))
+ sc->next_return = NULL;
+ else {
+ struct list_head *next = sc->next_return->siblings.next;
- if( next == &sc->dir_obj->variant.dir_variant.children)
- sc->next_return = NULL; /* end of list */
- else
- sc->next_return = list_entry(next,struct yaffs_obj,siblings);
- }
+ if (next == &sc->dir_obj->variant.dir_variant.children)
+ sc->next_return = NULL; /* end of list */
+ else
+ sc->next_return =
+ list_entry(next, struct yaffs_obj, siblings);
+ }
}
/*
static void yaffs_remove_obj_callback(struct yaffs_obj *obj)
{
- struct list_head *i;
- struct yaffs_search_context *sc;
- struct list_head *search_contexts = &(yaffs_dev_to_lc(obj->my_dev)->search_contexts);
-
+ struct list_head *i;
+ struct yaffs_search_context *sc;
+ struct list_head *search_contexts =
+ &(yaffs_dev_to_lc(obj->my_dev)->search_contexts);
- /* Iterate through the directory search contexts.
- * If any are currently on the object being removed, then advance
- * the search context to the next object to prevent a hanging pointer.
- */
- list_for_each(i, search_contexts) {
- if (i) {
- sc = list_entry(i, struct yaffs_search_context,others);
- if(sc->next_return == obj)
- yaffs_search_advance(sc);
- }
+ /* Iterate through the directory search contexts.
+ * If any are currently on the object being removed, then advance
+ * the search context to the next object to prevent a hanging pointer.
+ */
+ list_for_each(i, search_contexts) {
+ if (i) {
+ sc = list_entry(i, struct yaffs_search_context, others);
+ if (sc->next_return == obj)
+ yaffs_search_advance(sc);
+ }
}
}
-
/*-----------------------------------------------------------------*/
-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;
}
-void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias) {
+void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias)
+{
kfree(alias);
}
struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
- struct yaffs_obj *obj);
+ struct yaffs_obj *obj);
/*
* Lookup is used to find objects in the fs
*/
static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *n)
+ struct nameidata *n)
{
struct yaffs_obj *obj;
struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */
struct yaffs_dev *dev = yaffs_inode_to_obj(dir)->my_dev;
- if(current != yaffs_dev_to_lc(dev)->readdir_process)
+ if (current != yaffs_dev_to_lc(dev)->readdir_process)
yaffs_gross_lock(dev);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_lookup for %d:%s\n"),
- yaffs_inode_to_obj(dir)->obj_id, dentry->d_name.name));
+ (TSTR("yaffs_lookup for %d:%s\n"),
+ yaffs_inode_to_obj(dir)->obj_id, dentry->d_name.name));
- obj = yaffs_find_by_name(yaffs_inode_to_obj(dir),
- dentry->d_name.name);
+ obj = yaffs_find_by_name(yaffs_inode_to_obj(dir), dentry->d_name.name);
obj = yaffs_get_equivalent_obj(obj); /* in case it was a hardlink */
/* Can't hold gross lock when calling yaffs_get_inode() */
- if(current != yaffs_dev_to_lc(dev)->readdir_process)
+ if (current != yaffs_dev_to_lc(dev)->readdir_process)
yaffs_gross_unlock(dev);
if (obj) {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_lookup found %d\n"), obj->obj_id));
+ (TSTR("yaffs_lookup found %d\n"), obj->obj_id));
inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
if (inode) {
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_loookup dentry \n")));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_loookup dentry \n")));
d_add(dentry, inode);
/* return dentry; */
return NULL;
}
} else {
- T(YAFFS_TRACE_OS,(TSTR("yaffs_lookup not found\n")));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_lookup not found\n")));
}
return NULL;
}
-
#ifdef YAFFS_HAS_PUT_INODE
/* For now put inode is just for debugging
static void yaffs_put_inode(struct inode *inode)
{
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_put_inode: ino %d, count %d\n"), (int)inode->i_ino,
- atomic_read(&inode->i_count)));
+ (TSTR("yaffs_put_inode: ino %d, count %d\n"), (int)inode->i_ino,
+ atomic_read(&inode->i_count)));
}
#endif
-
static void yaffs_unstitch_obj(struct inode *inode, struct yaffs_obj *obj)
{
/* Clear the association between the inode and
* yaffs_clear_inode() and yaffs_delete_inode()
*
*/
-static void yaffs_evict_inode( struct inode *inode)
+static void yaffs_evict_inode(struct inode *inode)
{
struct yaffs_obj *obj;
struct yaffs_dev *dev;
obj = yaffs_inode_to_obj(inode);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_evict_inode: ino %d, count %d %s\n"), (int)inode->i_ino,
- atomic_read(&inode->i_count),
- obj ? "object exists" : "null object"));
+ (TSTR("yaffs_evict_inode: ino %d, count %d %s\n"), (int)inode->i_ino,
+ atomic_read(&inode->i_count),
+ obj ? "object exists" : "null object"));
if (!inode->i_nlink && !is_bad_inode(inode))
deleteme = 1;
- truncate_inode_pages(&inode->i_data,0);
+ truncate_inode_pages(&inode->i_data, 0);
end_writeback(inode);
- if(deleteme && obj){
+ if (deleteme && obj) {
dev = obj->my_dev;
yaffs_gross_lock(dev);
yaffs_del_obj(obj);
if (obj) {
dev = obj->my_dev;
yaffs_gross_lock(dev);
- yaffs_unstitch_obj(inode,obj);
+ yaffs_unstitch_obj(inode, obj);
yaffs_gross_unlock(dev);
}
-
}
-
static int yaffs_file_flush(struct file *file, fl_owner_t id)
{
struct yaffs_obj *obj = yaffs_dentry_to_obj(file->f_dentry);
struct yaffs_dev *dev = obj->my_dev;
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_file_flush object %d (%s)\n"), obj->obj_id,
- obj->dirty ? "dirty" : "clean"));
+ (TSTR("yaffs_file_flush object %d (%s)\n"), obj->obj_id,
+ obj->dirty ? "dirty" : "clean"));
yaffs_gross_lock(dev);
struct yaffs_dev *dev;
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_readpage_nolock at %08x, size %08x\n"),
- (unsigned)(pg->index << PAGE_CACHE_SHIFT),
- (unsigned)PAGE_CACHE_SIZE));
+ (TSTR("yaffs_readpage_nolock at %08x, size %08x\n"),
+ (unsigned)(pg->index << PAGE_CACHE_SHIFT),
+ (unsigned)PAGE_CACHE_SIZE));
obj = yaffs_dentry_to_obj(f->f_dentry);
yaffs_gross_lock(dev);
ret = yaffs_file_rd(obj, pg_buf,
- pg->index << PAGE_CACHE_SHIFT,
- PAGE_CACHE_SIZE);
+ pg->index << PAGE_CACHE_SHIFT, PAGE_CACHE_SIZE);
yaffs_gross_unlock(dev);
int ret;
T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage\n")));
- ret=yaffs_readpage_unlock(f, pg);
+ ret = yaffs_readpage_unlock(f, pg);
T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage done\n")));
return ret;
}
end_index = i_size >> PAGE_CACHE_SHIFT;
- if(page->index < end_index)
+ if (page->index < end_index)
n_bytes = PAGE_CACHE_SIZE;
else {
- n_bytes = i_size & (PAGE_CACHE_SIZE -1);
+ n_bytes = i_size & (PAGE_CACHE_SIZE - 1);
if (page->index > end_index || !n_bytes) {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_writepage at %08x, inode size = %08x!!!\n"),
- (unsigned)(page->index << PAGE_CACHE_SHIFT),
- (unsigned)inode->i_size));
+ (TSTR
+ ("yaffs_writepage at %08x, inode size = %08x!!!\n"),
+ (unsigned)(page->index << PAGE_CACHE_SHIFT),
+ (unsigned)inode->i_size));
T(YAFFS_TRACE_OS,
- (TSTR(" -> don't care!!\n")));
+ (TSTR(" -> don't care!!\n")));
- zero_user_segment(page,0,PAGE_CACHE_SIZE);
+ zero_user_segment(page, 0, PAGE_CACHE_SIZE);
set_page_writeback(page);
unlock_page(page);
end_page_writeback(page);
}
}
- if(n_bytes != PAGE_CACHE_SIZE)
- zero_user_segment(page,n_bytes,PAGE_CACHE_SIZE);
+ if (n_bytes != PAGE_CACHE_SIZE)
+ zero_user_segment(page, n_bytes, PAGE_CACHE_SIZE);
get_page(page);
yaffs_gross_lock(dev);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_writepage at %08x, size %08x\n"),
- (unsigned)(page->index << PAGE_CACHE_SHIFT), n_bytes));
+ (TSTR("yaffs_writepage at %08x, size %08x\n"),
+ (unsigned)(page->index << PAGE_CACHE_SHIFT), n_bytes));
T(YAFFS_TRACE_OS,
- (TSTR("writepag0: obj = %05x, ino = %05x\n"),
- (int)obj->variant.file_variant.file_size, (int)inode->i_size));
+ (TSTR("writepag0: obj = %05x, ino = %05x\n"),
+ (int)obj->variant.file_variant.file_size, (int)inode->i_size));
n_written = yaffs_wr_file(obj, buffer,
- page->index << PAGE_CACHE_SHIFT, n_bytes, 0);
+ page->index << PAGE_CACHE_SHIFT, n_bytes, 0);
yaffs_touch_super(dev);
T(YAFFS_TRACE_OS,
- (TSTR("writepag1: obj = %05x, ino = %05x\n"),
- (int)obj->variant.file_variant.file_size, (int)inode->i_size));
+ (TSTR("writepag1: obj = %05x, ino = %05x\n"),
+ (int)obj->variant.file_variant.file_size, (int)inode->i_size));
yaffs_gross_unlock(dev);
return (n_written == n_bytes) ? 0 : -ENOSPC;
}
-
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;
*pagep = pg;
if (!pg) {
- ret = -ENOMEM;
+ ret = -ENOMEM;
goto out;
}
T(YAFFS_TRACE_OS,
- (TSTR("start yaffs_write_begin index %d(%x) uptodate %d\n"),
- (int)index,(int)index,Page_Uptodate(pg) ? 1 : 0));
+ (TSTR("start yaffs_write_begin index %d(%x) uptodate %d\n"),
+ (int)index, (int)index, Page_Uptodate(pg) ? 1 : 0));
/* Get fs space */
space_held = yaffs_hold_space(filp);
out:
T(YAFFS_TRACE_OS,
- (TSTR("end yaffs_write_begin fail returning %d\n"), ret));
+ (TSTR("end yaffs_write_begin fail returning %d\n"), ret));
if (space_held)
yaffs_release_space(filp);
if (pg) {
return ret;
}
-
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;
addr = kva + offset_into_page;
T(YAFFS_TRACE_OS,
- ("yaffs_write_end addr %p pos %x n_bytes %d\n",
- addr,(unsigned)pos, copied));
+ ("yaffs_write_end addr %p pos %x n_bytes %d\n",
+ addr, (unsigned)pos, copied));
ret = yaffs_file_write(filp, addr, copied, &pos);
if (ret != copied) {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_write_end not same size ret %d copied %d\n"),
- ret, copied));
+ (TSTR("yaffs_write_end not same size ret %d copied %d\n"),
+ ret, copied));
SetPageError(pg);
} else {
/* Nothing */
return ret;
}
-
-static void yaffs_fill_inode_from_obj(struct inode *inode, struct yaffs_obj *obj)
+static void yaffs_fill_inode_from_obj(struct inode *inode,
+ struct yaffs_obj *obj)
{
if (inode && obj) {
-
/* Check mode against the variant type and attempt to repair if broken. */
u32 mode = obj->yst_mode;
switch (obj->variant_type) {
inode->i_nlink = yaffs_get_obj_link_count(obj);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_fill_inode 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)));
+ (TSTR
+ ("yaffs_fill_inode 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 */
init_special_inode(inode, obj->yst_mode,
- old_decode_dev(obj->yst_rdev));
+ old_decode_dev(obj->yst_rdev));
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,
- (TSTR("yaffs_fill_inode invalid parameters\n")));
+ (TSTR("yaffs_fill_inode invalid parameters\n")));
}
}
struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
- struct yaffs_obj *obj)
+ struct yaffs_obj *obj)
{
struct inode *inode;
if (!sb) {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_get_inode for NULL super_block!!\n")));
+ (TSTR("yaffs_get_inode for NULL super_block!!\n")));
return NULL;
}
if (!obj) {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_get_inode for NULL object!!\n")));
+ (TSTR("yaffs_get_inode for NULL object!!\n")));
return NULL;
}
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_get_inode for object %d\n"), obj->obj_id));
+ (TSTR("yaffs_get_inode for object %d\n"), obj->obj_id));
inode = Y_IGET(sb, obj->obj_id);
if (IS_ERR(inode))
}
static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
- loff_t *pos)
+ loff_t * pos)
{
struct yaffs_obj *obj;
int n_written, ipos;
if (!obj)
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_file_write: hey obj is null!\n")));
+ (TSTR("yaffs_file_write: hey obj is null!\n")));
else
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_file_write about to write writing %u(%x) bytes"
+ (TSTR("yaffs_file_write about to write writing %u(%x) bytes"
"to object %d at %d(%x)\n"),
- (unsigned) n, (unsigned) n, obj->obj_id, ipos,ipos));
+ (unsigned)n, (unsigned)n, obj->obj_id, ipos, ipos));
n_written = yaffs_wr_file(obj, buf, ipos, n, 0);
yaffs_touch_super(dev);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_file_write: %d(%x) bytes written\n"),
- (unsigned )n,(unsigned)n));
+ (TSTR("yaffs_file_write: %d(%x) bytes written\n"),
+ (unsigned)n, (unsigned)n));
if (n_written > 0) {
ipos += n_written;
inode->i_blocks = (ipos + 511) >> 9;
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_file_write size updated to %d bytes, "
- "%d blocks\n"),
- ipos, (int)(inode->i_blocks)));
+ (TSTR("yaffs_file_write size updated to %d bytes, "
+ "%d blocks\n"), ipos, (int)(inode->i_blocks)));
}
}
int n_free_chunks;
-
obj = yaffs_dentry_to_obj(f->f_dentry);
dev = obj->my_dev;
struct yaffs_obj *obj;
struct yaffs_dev *dev;
-
obj = yaffs_dentry_to_obj(f->f_dentry);
dev = obj->my_dev;
yaffs_gross_lock(dev);
-
yaffs_gross_unlock(dev);
}
-
static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin)
{
long long retval;
lock_kernel();
- switch (origin){
+ switch (origin) {
case 2:
offset += i_size_read(file->f_path.dentry->d_inode);
break;
}
retval = -EINVAL;
- if (offset >= 0){
+ if (offset >= 0) {
if (offset != file->f_pos)
file->f_pos = offset;
return retval;
}
-
static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
{
struct yaffs_obj *obj;
struct yaffs_dev *dev;
- struct yaffs_search_context *sc;
+ struct yaffs_search_context *sc;
struct inode *inode = f->f_dentry->d_inode;
unsigned long offset, curoffs;
struct yaffs_obj *l;
- int ret_val = 0;
+ int ret_val = 0;
char name[YAFFS_MAX_NAME_LENGTH + 1];
offset = f->f_pos;
- sc = yaffs_new_search(obj);
- if(!sc){
- ret_val = -ENOMEM;
- goto out;
- }
+ sc = yaffs_new_search(obj);
+ if (!sc) {
+ ret_val = -ENOMEM;
+ goto out;
+ }
- T(YAFFS_TRACE_OS, (TSTR("yaffs_readdir: starting at %d\n"), (int)offset));
+ T(YAFFS_TRACE_OS,
+ (TSTR("yaffs_readdir: starting at %d\n"), (int)offset));
if (offset == 0) {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_readdir: entry . ino %d \n"),
- (int)inode->i_ino));
+ (TSTR("yaffs_readdir: entry . ino %d \n"),
+ (int)inode->i_ino));
yaffs_gross_unlock(dev);
- if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0){
+ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) {
yaffs_gross_lock(dev);
goto out;
}
}
if (offset == 1) {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_readdir: entry .. ino %d \n"),
- (int)f->f_dentry->d_parent->d_inode->i_ino));
+ (TSTR("yaffs_readdir: entry .. ino %d \n"),
+ (int)f->f_dentry->d_parent->d_inode->i_ino));
yaffs_gross_unlock(dev);
if (filldir(dirent, "..", 2, offset,
- f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0){
+ f->f_dentry->d_parent->d_inode->i_ino,
+ DT_DIR) < 0) {
yaffs_gross_lock(dev);
goto out;
}
f->f_version = inode->i_version;
}
- while(sc->next_return){
+ while (sc->next_return) {
curoffs++;
- l = sc->next_return;
+ l = sc->next_return;
if (curoffs >= offset) {
- int this_inode = yaffs_get_obj_inode(l);
- int this_type = yaffs_get_obj_type(l);
+ int this_inode = yaffs_get_obj_inode(l);
+ int this_type = yaffs_get_obj_type(l);
- yaffs_get_obj_name(l, name,
- YAFFS_MAX_NAME_LENGTH + 1);
+ yaffs_get_obj_name(l, name, YAFFS_MAX_NAME_LENGTH + 1);
T(YAFFS_TRACE_OS,
(TSTR("yaffs_readdir: %s inode %d\n"),
- name, yaffs_get_obj_inode(l)));
+ name, yaffs_get_obj_inode(l)));
- yaffs_gross_unlock(dev);
+ yaffs_gross_unlock(dev);
if (filldir(dirent,
- name,
- strlen(name),
- offset,
- this_inode,
- this_type) < 0){
+ name,
+ strlen(name),
+ offset, this_inode, this_type) < 0) {
yaffs_gross_lock(dev);
goto out;
}
- yaffs_gross_lock(dev);
+ yaffs_gross_lock(dev);
offset++;
f->f_pos++;
}
- yaffs_search_advance(sc);
+ yaffs_search_advance(sc);
}
out:
return ret_val;
}
-
-
/*
* File creation. Allocate an inode, and we're done..
*/
#define YCRED(x) (x->cred)
static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- dev_t rdev)
+ dev_t rdev)
{
struct inode *inode;
int error = -ENOSPC;
uid_t uid = YCRED(current)->fsuid;
- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
+ gid_t gid =
+ (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
mode |= S_ISGID;
if (parent) {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_mknod: parent object %d type %d\n"),
- parent->obj_id, parent->variant_type));
+ (TSTR("yaffs_mknod: parent object %d type %d\n"),
+ parent->obj_id, parent->variant_type));
} else {
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_mknod: could not get parent object\n")));
+ (TSTR("yaffs_mknod: could not get parent object\n")));
return -EPERM;
}
T(YAFFS_TRACE_OS, (TSTR("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->my_dev;
default:
/* Special (socket, fifo, device...) */
T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making special\n")));
- obj = yaffs_create_special(parent, dentry->d_name.name, mode, uid,
- gid, old_encode_dev(rdev));
+ obj =
+ yaffs_create_special(parent, dentry->d_name.name, mode, uid,
+ gid, old_encode_dev(rdev));
break;
case S_IFREG: /* file */
T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making file\n")));
obj = yaffs_create_file(parent, dentry->d_name.name, mode, uid,
- gid);
+ gid);
break;
case S_IFDIR: /* directory */
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_mknod: making directory\n")));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making directory\n")));
obj = yaffs_create_dir(parent, dentry->d_name.name, mode,
- uid, gid);
+ uid, gid);
break;
case S_IFLNK: /* symlink */
T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making symlink\n")));
d_instantiate(dentry, inode);
update_dir_time(dir);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_mknod created object %d count = %d\n"),
- obj->obj_id, atomic_read(&inode->i_count)));
+ (TSTR("yaffs_mknod created object %d count = %d\n"),
+ obj->obj_id, atomic_read(&inode->i_count)));
error = 0;
- yaffs_fill_inode_from_obj(dir,parent);
+ yaffs_fill_inode_from_obj(dir, parent);
} else {
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_mknod failed making object\n")));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod failed making object\n")));
error = -ENOMEM;
}
static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
struct nameidata *n)
{
- T(YAFFS_TRACE_OS,(TSTR("yaffs_create\n")));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_create\n")));
return yaffs_mknod(dir, dentry, mode | S_IFREG, 0);
}
struct yaffs_obj *obj;
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_unlink %d:%s\n"),
- (int)(dir->i_ino),
- dentry->d_name.name));
+ (TSTR("yaffs_unlink %d:%s\n"),
+ (int)(dir->i_ino), dentry->d_name.name));
obj = yaffs_inode_to_obj(dir);
dev = obj->my_dev;
* 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;
struct yaffs_obj *obj = NULL;
yaffs_gross_lock(dev);
- if (!S_ISDIR(inode->i_mode)) /* Don't link directories */
- link = yaffs_link_obj(yaffs_inode_to_obj(dir), dentry->d_name.name,
- obj);
+ if (!S_ISDIR(inode->i_mode)) /* Don't link directories */
+ link =
+ yaffs_link_obj(yaffs_inode_to_obj(dir), dentry->d_name.name,
+ obj);
if (link) {
old_dentry->d_inode->i_nlink = yaffs_get_obj_link_count(obj);
d_instantiate(dentry, old_dentry->d_inode);
atomic_inc(&old_dentry->d_inode->i_count);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_link link count %d i_count %d\n"),
- old_dentry->d_inode->i_nlink,
- atomic_read(&old_dentry->d_inode->i_count)));
+ (TSTR("yaffs_link link count %d i_count %d\n"),
+ old_dentry->d_inode->i_nlink,
+ atomic_read(&old_dentry->d_inode->i_count)));
}
yaffs_gross_unlock(dev);
- if (link){
+ if (link) {
update_dir_time(dir);
return 0;
}
}
static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
+ const char *symname)
{
struct yaffs_obj *obj;
struct yaffs_dev *dev;
uid_t uid = YCRED(current)->fsuid;
- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
+ gid_t gid =
+ (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
T(YAFFS_TRACE_OS, (TSTR("yaffs_symlink\n")));
dev = yaffs_inode_to_obj(dir)->my_dev;
yaffs_gross_lock(dev);
obj = yaffs_create_symlink(yaffs_inode_to_obj(dir), dentry->d_name.name,
- S_IFLNK | S_IRWXUGO, uid, gid, symname);
+ S_IFLNK | S_IRWXUGO, uid, gid, symname);
yaffs_gross_unlock(dev);
if (obj) {
dev = obj->my_dev;
- T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC,
- (TSTR("yaffs_sync_object\n")));
+ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, (TSTR("yaffs_sync_object\n")));
yaffs_gross_lock(dev);
yaffs_flush_file(obj, 1, datasync);
yaffs_gross_unlock(dev);
/* Check if the target is an existing directory that is not empty. */
target = yaffs_find_by_name(yaffs_inode_to_obj(new_dir),
- new_dentry->d_name.name);
-
-
+ new_dentry->d_name.name);
if (target && target->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY &&
- !list_empty(&target->variant.dir_variant.children)) {
+ !list_empty(&target->variant.dir_variant.children)) {
T(YAFFS_TRACE_OS, (TSTR("target is non-empty dir\n")));
T(YAFFS_TRACE_OS, (TSTR("calling yaffs_rename_obj\n")));
ret_val = yaffs_rename_obj(yaffs_inode_to_obj(old_dir),
- old_dentry->d_name.name,
- yaffs_inode_to_obj(new_dir),
- new_dentry->d_name.name);
+ old_dentry->d_name.name,
+ yaffs_inode_to_obj(new_dir),
+ new_dentry->d_name.name);
}
yaffs_gross_unlock(dev);
new_dentry->d_inode->i_nlink--;
mark_inode_dirty(new_dentry->d_inode);
}
-
+
update_dir_time(old_dir);
- if(old_dir != new_dir)
+ if (old_dir != new_dir)
update_dir_time(new_dir);
return 0;
} else {
struct yaffs_dev *dev;
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_setattr of object %d\n"),
- yaffs_inode_to_obj(inode)->obj_id));
+ (TSTR("yaffs_setattr of object %d\n"),
+ yaffs_inode_to_obj(inode)->obj_id));
- /* Fail if a requested resize >= 2GB */
- if (attr->ia_valid & ATTR_SIZE &&
- (attr->ia_size >> 31))
+ /* Fail if a requested resize >= 2GB */
+ if (attr->ia_valid & ATTR_SIZE && (attr->ia_size >> 31))
error = -EINVAL;
if (error == 0)
error = inode_change_ok(inode, attr);
if (error == 0) {
int result;
- if (!error){
+ if (!error) {
error = yaffs_vfs_setattr(inode, attr);
- T(YAFFS_TRACE_OS,(TSTR("inode_setattr called\n")));
- if (attr->ia_valid & ATTR_SIZE){
- yaffs_vfs_setsize(inode,attr->ia_size);
- inode->i_blocks = (inode->i_size + 511) >> 9;
+ T(YAFFS_TRACE_OS, (TSTR("inode_setattr called\n")));
+ if (attr->ia_valid & ATTR_SIZE) {
+ yaffs_vfs_setsize(inode, attr->ia_size);
+ inode->i_blocks = (inode->i_size + 511) >> 9;
}
}
dev = yaffs_inode_to_obj(inode)->my_dev;
- if (attr->ia_valid & ATTR_SIZE){
- T(YAFFS_TRACE_OS,(TSTR("resize to %d(%x)\n"),
- (int)(attr->ia_size),(int)(attr->ia_size)));
+ if (attr->ia_valid & ATTR_SIZE) {
+ T(YAFFS_TRACE_OS, (TSTR("resize to %d(%x)\n"),
+ (int)(attr->ia_size),
+ (int)(attr->ia_size)));
}
yaffs_gross_lock(dev);
result = yaffs_set_attribs(yaffs_inode_to_obj(inode), attr);
- if(result == YAFFS_OK) {
+ if (result == YAFFS_OK) {
error = 0;
} else {
error = -EPERM;
}
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_setattr done returning %d\n"),error));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_setattr done returning %d\n"), error));
return error;
}
#ifdef CONFIG_YAFFS_XATTR
int yaffs_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags)
+ const void *value, size_t size, int flags)
{
struct inode *inode = dentry->d_inode;
int error = 0;
struct yaffs_dev *dev;
struct yaffs_obj *obj = yaffs_inode_to_obj(inode);
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_setxattr of object %d\n"),
- obj->obj_id));
-
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_setxattr of object %d\n"), obj->obj_id));
if (error == 0) {
int result;
dev = obj->my_dev;
yaffs_gross_lock(dev);
result = yaffs_set_xattrib(obj, name, value, size, flags);
- if(result == YAFFS_OK)
+ if (result == YAFFS_OK)
error = 0;
- else if(result < 0)
+ else if (result < 0)
error = result;
yaffs_gross_unlock(dev);
}
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_setxattr done returning %d\n"),error));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_setxattr done returning %d\n"), error));
return error;
}
-
-ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff,
- size_t size)
+ssize_t yaffs_getxattr(struct dentry * dentry, const char *name, void *buff,
+ size_t size)
{
struct inode *inode = dentry->d_inode;
int error = 0;
struct yaffs_obj *obj = yaffs_inode_to_obj(inode);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_getxattr \"%s\" from object %d\n"),
- name, obj->obj_id));
+ (TSTR("yaffs_getxattr \"%s\" from object %d\n"), name, obj->obj_id));
if (error == 0) {
dev = obj->my_dev;
yaffs_gross_unlock(dev);
}
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_getxattr done returning %d\n"),error));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_getxattr done returning %d\n"), error));
return error;
}
struct yaffs_obj *obj = yaffs_inode_to_obj(inode);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_removexattr of object %d\n"),
- obj->obj_id));
-
+ (TSTR("yaffs_removexattr of object %d\n"), obj->obj_id));
if (error == 0) {
int result;
dev = obj->my_dev;
yaffs_gross_lock(dev);
result = yaffs_remove_xattrib(obj, name);
- if(result == YAFFS_OK)
+ if (result == YAFFS_OK)
error = 0;
- else if(result < 0)
+ else if (result < 0)
error = result;
yaffs_gross_unlock(dev);
}
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_removexattr done returning %d\n"),error));
+ (TSTR("yaffs_removexattr done returning %d\n"), error));
return error;
}
-ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size)
+ssize_t yaffs_listxattr(struct dentry * dentry, char *buff, size_t size)
{
struct inode *inode = dentry->d_inode;
int error = 0;
struct yaffs_obj *obj = yaffs_inode_to_obj(inode);
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_listxattr of object %d\n"),
- obj->obj_id));
-
+ (TSTR("yaffs_listxattr of object %d\n"), obj->obj_id));
if (error == 0) {
dev = obj->my_dev;
yaffs_gross_unlock(dev);
}
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_listxattr done returning %d\n"),error));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_listxattr done returning %d\n"), error));
return error;
}
#endif
-
static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct yaffs_dev *dev = yaffs_dentry_to_obj(dentry)->my_dev;
uint64_t bytes_in_dev;
uint64_t bytes_free;
- bytes_in_dev = ((uint64_t)((dev->param.end_block - dev->param.start_block + 1))) *
- ((uint64_t)(dev->param.chunks_per_block * dev->data_bytes_per_chunk));
+ bytes_in_dev =
+ ((uint64_t)
+ ((dev->param.end_block - dev->param.start_block +
+ 1))) * ((uint64_t) (dev->param.chunks_per_block *
+ dev->data_bytes_per_chunk));
- do_div(bytes_in_dev, sb->s_blocksize); /* bytes_in_dev becomes the number of blocks */
+ do_div(bytes_in_dev, sb->s_blocksize); /* bytes_in_dev becomes the number of blocks */
buf->f_blocks = bytes_in_dev;
- bytes_free = ((uint64_t)(yaffs_get_n_free_chunks(dev))) *
- ((uint64_t)(dev->data_bytes_per_chunk));
+ bytes_free = ((uint64_t) (yaffs_get_n_free_chunks(dev))) *
+ ((uint64_t) (dev->data_bytes_per_chunk));
do_div(bytes_free, sb->s_blocksize);
} else if (sb->s_blocksize > dev->data_bytes_per_chunk) {
buf->f_blocks =
- (dev->param.end_block - dev->param.start_block + 1) *
- dev->param.chunks_per_block /
- (sb->s_blocksize / dev->data_bytes_per_chunk);
+ (dev->param.end_block - dev->param.start_block + 1) *
+ dev->param.chunks_per_block /
+ (sb->s_blocksize / dev->data_bytes_per_chunk);
buf->f_bfree =
- yaffs_get_n_free_chunks(dev) /
- (sb->s_blocksize / dev->data_bytes_per_chunk);
+ yaffs_get_n_free_chunks(dev) /
+ (sb->s_blocksize / dev->data_bytes_per_chunk);
} else {
buf->f_blocks =
- (dev->param.end_block - dev->param.start_block + 1) *
- dev->param.chunks_per_block *
- (dev->data_bytes_per_chunk / sb->s_blocksize);
+ (dev->param.end_block - dev->param.start_block + 1) *
+ dev->param.chunks_per_block *
+ (dev->data_bytes_per_chunk / sb->s_blocksize);
buf->f_bfree =
- yaffs_get_n_free_chunks(dev) *
- (dev->data_bytes_per_chunk / sb->s_blocksize);
+ yaffs_get_n_free_chunks(dev) *
+ (dev->data_bytes_per_chunk / sb->s_blocksize);
}
buf->f_files = 0;
return 0;
}
-
-
static void yaffs_flush_inodes(struct super_block *sb)
{
struct inode *iptr;
struct yaffs_obj *obj;
-
- list_for_each_entry(iptr,&sb->s_inodes, i_sb_list){
+
+ list_for_each_entry(iptr, &sb->s_inodes, i_sb_list) {
obj = yaffs_inode_to_obj(iptr);
- if(obj){
+ if (obj) {
T(YAFFS_TRACE_OS, (TSTR("flushing obj %d\n"),
- obj->obj_id));
- yaffs_flush_file(obj,1,0);
+ obj->obj_id));
+ yaffs_flush_file(obj, 1, 0);
}
}
}
-
static void yaffs_flush_super(struct super_block *sb, int do_checkpoint)
{
- struct yaffs_dev *dev = yaffs_super_to_dev(sb);
- if(!dev)
+ struct yaffs_dev *dev = yaffs_super_to_dev(sb);
+ if (!dev)
return;
-
+
yaffs_flush_inodes(sb);
yaffs_update_dirty_dirs(dev);
yaffs_flush_whole_cache(dev);
- if(do_checkpoint)
+ if (do_checkpoint)
yaffs_checkpoint_save(dev);
}
-
static unsigned yaffs_bg_gc_urgency(struct yaffs_dev *dev)
{
- unsigned erased_chunks = dev->n_erased_blocks * dev->param.chunks_per_block;
+ unsigned erased_chunks =
+ dev->n_erased_blocks * dev->param.chunks_per_block;
struct yaffs_linux_context *context = yaffs_dev_to_lc(dev);
- unsigned scattered = 0; /* Free chunks not in an erased block */
+ unsigned scattered = 0; /* Free chunks not in an erased block */
- if(erased_chunks < dev->n_free_chunks)
+ if (erased_chunks < dev->n_free_chunks)
scattered = (dev->n_free_chunks - erased_chunks);
- if(!context->bg_running)
+ if (!context->bg_running)
return 0;
- else if(scattered < (dev->param.chunks_per_block * 2))
+ else if (scattered < (dev->param.chunks_per_block * 2))
return 0;
- else if(erased_chunks > dev->n_free_chunks/2)
+ else if (erased_chunks > dev->n_free_chunks / 2)
return 0;
- else if(erased_chunks > dev->n_free_chunks/4)
+ else if (erased_chunks > dev->n_free_chunks / 4)
return 1;
else
return 2;
}
-static int yaffs_do_sync_fs(struct super_block *sb,
- int request_checkpoint)
+static int yaffs_do_sync_fs(struct super_block *sb, int request_checkpoint)
{
struct yaffs_dev *dev = yaffs_super_to_dev(sb);
int do_checkpoint;
T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND,
- (TSTR("yaffs_do_sync_fs: gc-urgency %d %s %s%s\n"),
- gc_urgent,
- sb->s_dirt ? "dirty" : "clean",
- request_checkpoint ? "checkpoint requested" : "no checkpoint",
- oneshot_checkpoint ? " one-shot" : "" ));
+ (TSTR("yaffs_do_sync_fs: gc-urgency %d %s %s%s\n"),
+ gc_urgent,
+ sb->s_dirt ? "dirty" : "clean",
+ request_checkpoint ? "checkpoint requested" : "no checkpoint",
+ oneshot_checkpoint ? " one-shot" : ""));
yaffs_gross_lock(dev);
do_checkpoint = ((request_checkpoint && !gc_urgent) ||
- oneshot_checkpoint) &&
- !dev->is_checkpointed;
+ oneshot_checkpoint) && !dev->is_checkpointed;
if (sb->s_dirt || do_checkpoint) {
yaffs_flush_super(sb, !dev->is_checkpointed && do_checkpoint);
sb->s_dirt = 0;
- if(oneshot_checkpoint)
+ if (oneshot_checkpoint)
yaffs_auto_checkpoint &= ~4;
}
yaffs_gross_unlock(dev);
* The thread should not do any writing while the fs is in read only.
*/
-
void yaffs_background_waker(unsigned long data)
{
wake_up_process((struct task_struct *)data);
struct timer_list timer;
T(YAFFS_TRACE_BACKGROUND,
- (TSTR("yaffs_background starting for dev %p\n"),
- (void *)dev));
+ (TSTR("yaffs_background starting for dev %p\n"), (void *)dev));
set_freezable();
- while(context->bg_running){
- T(YAFFS_TRACE_BACKGROUND,
- (TSTR("yaffs_background\n")));
+ while (context->bg_running) {
+ T(YAFFS_TRACE_BACKGROUND, (TSTR("yaffs_background\n")));
- if(kthread_should_stop())
+ if (kthread_should_stop())
break;
- if(try_to_freeze())
+ if (try_to_freeze())
continue;
yaffs_gross_lock(dev);
now = jiffies;
- if(time_after(now, next_dir_update) && yaffs_bg_enable){
+ if (time_after(now, next_dir_update) && yaffs_bg_enable) {
yaffs_update_dirty_dirs(dev);
next_dir_update = now + HZ;
}
- if(time_after(now,next_gc) && yaffs_bg_enable){
- if(!dev->is_checkpointed){
+ if (time_after(now, next_gc) && yaffs_bg_enable) {
+ if (!dev->is_checkpointed) {
urgency = yaffs_bg_gc_urgency(dev);
gc_result = yaffs_bg_gc(dev, urgency);
- if(urgency > 1)
- next_gc = now + HZ/20+1;
- else if(urgency > 0)
- next_gc = now + HZ/10+1;
+ if (urgency > 1)
+ next_gc = now + HZ / 20 + 1;
+ else if (urgency > 0)
+ next_gc = now + HZ / 10 + 1;
else
next_gc = now + HZ * 2;
- } else /*
- * gc not running so set to next_dir_update
- * to cut down on wake ups
- */
+ } else {
+ /*
+ * gc not running so set to next_dir_update
+ * to cut down on wake ups
+ */
next_gc = next_dir_update;
+ }
}
yaffs_gross_unlock(dev);
expires = next_dir_update;
- if (time_before(next_gc,expires))
+ if (time_before(next_gc, expires))
expires = next_gc;
- if(time_before(expires,now))
+ if (time_before(expires, now))
expires = now + HZ;
Y_INIT_TIMER(&timer);
- timer.expires = expires+1;
- timer.data = (unsigned long) current;
+ timer.expires = expires + 1;
+ timer.data = (unsigned long)current;
timer.function = yaffs_background_waker;
- set_current_state(TASK_INTERRUPTIBLE);
+ set_current_state(TASK_INTERRUPTIBLE);
add_timer(&timer);
schedule();
del_timer_sync(&timer);
int retval = 0;
struct yaffs_linux_context *context = yaffs_dev_to_lc(dev);
- if(dev->read_only)
+ if (dev->read_only)
return -1;
context->bg_running = 1;
context->bg_thread = kthread_run(yaffs_bg_thread_fn,
- (void *)dev,"yaffs-bg-%d",context->mount_id);
+ (void *)dev, "yaffs-bg-%d",
+ context->mount_id);
- if(IS_ERR(context->bg_thread)){
+ if (IS_ERR(context->bg_thread)) {
retval = PTR_ERR(context->bg_thread);
context->bg_thread = NULL;
context->bg_running = 0;
ctxt->bg_running = 0;
- if( ctxt->bg_thread){
+ if (ctxt->bg_thread) {
kthread_stop(ctxt->bg_thread);
ctxt->bg_thread = NULL;
}
}
-
static void yaffs_write_super(struct super_block *sb)
{
unsigned request_checkpoint = (yaffs_auto_checkpoint >= 2);
T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND,
- (TSTR("yaffs_write_super%s\n"),
- request_checkpoint ? " checkpt" : ""));
+ (TSTR("yaffs_write_super%s\n"),
+ request_checkpoint ? " checkpt" : ""));
yaffs_do_sync_fs(sb, request_checkpoint);
}
-
static int yaffs_sync_fs(struct super_block *sb, int wait)
{
unsigned request_checkpoint = (yaffs_auto_checkpoint >= 1);
T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC,
- (TSTR("yaffs_sync_fs%s\n"),
- request_checkpoint ? " checkpt" : ""));
+ (TSTR("yaffs_sync_fs%s\n"), request_checkpoint ? " checkpt" : ""));
yaffs_do_sync_fs(sb, request_checkpoint);
struct yaffs_obj *obj;
struct yaffs_dev *dev = yaffs_super_to_dev(sb);
- T(YAFFS_TRACE_OS,
- (TSTR("yaffs_iget for %lu\n"), ino));
+ T(YAFFS_TRACE_OS, (TSTR("yaffs_iget for %lu\n"), ino));
inode = iget_locked(sb, ino);
if (!inode)
}
static LIST_HEAD(yaffs_context_list);
-struct semaphore yaffs_context_lock;
+struct mutex yaffs_context_lock;
static void yaffs_put_super(struct super_block *sb)
{
T(YAFFS_TRACE_OS, (TSTR("yaffs_put_super\n")));
T(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND,
- (TSTR("Shutting down yaffs background thread\n")));
+ (TSTR("Shutting down yaffs background thread\n")));
yaffs_bg_stop(dev);
T(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND,
- (TSTR("yaffs background thread shut down\n")));
+ (TSTR("yaffs background thread shut down\n")));
yaffs_gross_lock(dev);
- yaffs_flush_super(sb,1);
+ yaffs_flush_super(sb, 1);
if (yaffs_dev_to_lc(dev)->put_super_fn)
yaffs_dev_to_lc(dev)->put_super_fn(sb);
-
yaffs_deinitialise(dev);
yaffs_gross_unlock(dev);
-
- down(&yaffs_context_lock);
+ mutex_lock(&yaffs_context_lock);
list_del_init(&(yaffs_dev_to_lc(dev)->context_list));
- up(&yaffs_context_lock);
+ mutex_unlock(&yaffs_context_lock);
if (yaffs_dev_to_lc(dev)->spare_buffer) {
YFREE(yaffs_dev_to_lc(dev)->spare_buffer);
kfree(dev);
}
-
static void yaffs_mtd_put_super(struct super_block *sb)
{
struct mtd_info *mtd = yaffs_dev_to_mtd(yaffs_super_to_dev(sb));
put_mtd_device(mtd);
}
-
static void yaffs_touch_super(struct yaffs_dev *dev)
{
struct super_block *sb = yaffs_dev_to_lc(dev)->super;
int lazy_loading_overridden;
int empty_lost_and_found;
int empty_lost_and_found_overridden;
-} ;
+};
#define MAX_OPT_LEN 30
-static int yaffs_parse_options(struct yaffs_options *options, const char *options_str)
+static int yaffs_parse_options(struct yaffs_options *options,
+ const char *options_str)
{
char cur_opt[MAX_OPT_LEN + 1];
int p;
memset(cur_opt, 0, MAX_OPT_LEN + 1);
p = 0;
- while(*options_str == ',')
+ while (*options_str == ',')
options_str++;
while (*options_str && *options_str != ',') {
options_str++;
}
- if (!strcmp(cur_opt, "inband-tags"))
+ if (!strcmp(cur_opt, "inband-tags")) {
options->inband_tags = 1;
- else if (!strcmp(cur_opt, "tags-ecc-off")){
+ } else if (!strcmp(cur_opt, "tags-ecc-off")) {
options->tags_ecc_on = 0;
- options->tags_ecc_overridden=1;
- } else if (!strcmp(cur_opt, "tags-ecc-on")){
+ options->tags_ecc_overridden = 1;
+ } else if (!strcmp(cur_opt, "tags-ecc-on")) {
options->tags_ecc_on = 1;
options->tags_ecc_overridden = 1;
- } else if (!strcmp(cur_opt, "lazy-loading-off")){
+ } else if (!strcmp(cur_opt, "lazy-loading-off")) {
options->lazy_loading_enabled = 0;
- options->lazy_loading_overridden=1;
- } else if (!strcmp(cur_opt, "lazy-loading-on")){
+ options->lazy_loading_overridden = 1;
+ } else if (!strcmp(cur_opt, "lazy-loading-on")) {
options->lazy_loading_enabled = 1;
options->lazy_loading_overridden = 1;
- } else if (!strcmp(cur_opt, "empty-lost-and-found-off")){
+ } else if (!strcmp(cur_opt, "empty-lost-and-found-off")) {
options->empty_lost_and_found = 0;
- options->empty_lost_and_found_overridden=1;
- } else if (!strcmp(cur_opt, "empty-lost-and-found-on")){
+ options->empty_lost_and_found_overridden = 1;
+ } else if (!strcmp(cur_opt, "empty-lost-and-found-on")) {
options->empty_lost_and_found = 1;
- options->empty_lost_and_found_overridden=1;
- } else if (!strcmp(cur_opt, "no-cache"))
+ options->empty_lost_and_found_overridden = 1;
+ } 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);
+ cur_opt);
error = 1;
}
}
}
static struct super_block *yaffs_internal_read_super(int yaffs_version,
- struct super_block *sb,
- void *data, int silent)
+ struct super_block *sb,
+ void *data, int silent)
{
int n_blocks;
struct inode *inode = NULL;
sb->s_op = &yaffs_super_ops;
sb->s_flags |= MS_NOATIME;
- read_only =((sb->s_flags & MS_RDONLY) != 0);
+ read_only = ((sb->s_flags & MS_RDONLY) != 0);
sb->s_export_op = &yaffs_export_ops;
else
printk(KERN_INFO "yaffs: dev is %d name is \"%s\" %s\n",
sb->s_dev,
- yaffs_devname(sb, devname_buf),
- read_only ? "ro" : "rw");
+ yaffs_devname(sb, devname_buf), read_only ? "ro" : "rw");
if (!data_str)
data_str = "";
return NULL;
}
-
sb->s_blocksize = PAGE_CACHE_SIZE;
sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_read_super: Using yaffs%d\n"), yaffs_version));
+ (TSTR("yaffs_read_super: Using yaffs%d\n"), yaffs_version));
T(YAFFS_TRACE_OS,
- (TSTR("yaffs_read_super: block size %d\n"),
- (int)(sb->s_blocksize)));
+ (TSTR("yaffs_read_super: block size %d\n"), (int)(sb->s_blocksize)));
T(YAFFS_TRACE_ALWAYS,
- (TSTR("yaffs: Attempting MTD mount of %u.%u,\"%s\"\n"),
- MAJOR(sb->s_dev), MINOR(sb->s_dev),
- yaffs_devname(sb, devname_buf)));
+ (TSTR("yaffs: Attempting MTD mount of %u.%u,\"%s\"\n"),
+ MAJOR(sb->s_dev), MINOR(sb->s_dev), yaffs_devname(sb, devname_buf)));
/* Check it's an mtd device..... */
if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR)
mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
if (!mtd) {
T(YAFFS_TRACE_ALWAYS,
- (TSTR("yaffs: MTD device #%u doesn't appear to exist\n"),
- MINOR(sb->s_dev)));
+ (TSTR("yaffs: MTD device #%u doesn't appear to exist\n"),
+ MINOR(sb->s_dev)));
return NULL;
}
/* Check it's NAND */
if (mtd->type != MTD_NANDFLASH) {
T(YAFFS_TRACE_ALWAYS,
- (TSTR("yaffs: MTD device is not NAND it's type %d\n"),
- mtd->type));
+ (TSTR("yaffs: MTD device is not NAND it's type %d\n"),
+ mtd->type));
return NULL;
}
#ifdef CONFIG_YAFFS_AUTO_YAFFS2
if (yaffs_version == 1 && WRITE_SIZE(mtd) >= 2048) {
- T(YAFFS_TRACE_ALWAYS,
- (TSTR("yaffs: auto selecting yaffs2\n")));
+ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: auto selecting yaffs2\n")));
yaffs_version = 2;
}
/* Added NCB 26/5/2006 for completeness */
- if (yaffs_version == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) {
- T(YAFFS_TRACE_ALWAYS,
- (TSTR("yaffs: auto selecting yaffs1\n")));
+ if (yaffs_version == 2 && !options.inband_tags
+ && WRITE_SIZE(mtd) == 512) {
+ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: auto selecting yaffs1\n")));
yaffs_version = 1;
}
-
#endif
if (yaffs_version == 2) {
!mtd->block_isbad ||
!mtd->block_markbad ||
!mtd->read ||
- !mtd->write ||
- !mtd->read_oob || !mtd->write_oob) {
+ !mtd->write || !mtd->read_oob || !mtd->write_oob) {
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs: MTD device does not support required "
- "functions\n")));
+ "functions\n")));
return NULL;
}
if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
- mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
+ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
!options.inband_tags) {
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs: MTD device does not have the "
- "right page sizes\n")));
+ "right page sizes\n")));
return NULL;
}
} else {
/* Check for V1 style functions */
if (!mtd->erase ||
!mtd->read ||
- !mtd->write ||
- !mtd->read_oob || !mtd->write_oob) {
+ !mtd->write || !mtd->read_oob || !mtd->write_oob) {
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs: MTD device does not support required "
- "functions\n")));
+ "functions\n")));
return NULL;
}
mtd->oobsize != YAFFS_BYTES_PER_SPARE) {
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs: MTD device does not support have the "
- "right page sizes\n")));
+ "right page sizes\n")));
return NULL;
}
}
* Set the struct yaffs_dev up for mtd
*/
- if (!read_only && !(mtd->flags & MTD_WRITEABLE)){
+ if (!read_only && !(mtd->flags & MTD_WRITEABLE)) {
read_only = 1;
- printk(KERN_INFO "yaffs: mtd is read only, setting superblock read only");
+ printk(KERN_INFO
+ "yaffs: mtd is read only, setting superblock read only");
sb->s_flags |= MS_RDONLY;
}
dev = kmalloc(sizeof(struct yaffs_dev), GFP_KERNEL);
- context = kmalloc(sizeof(struct yaffs_linux_context),GFP_KERNEL);
-
- if(!dev || !context ){
- if(dev)
+ context = kmalloc(sizeof(struct yaffs_linux_context), GFP_KERNEL);
+
+ if (!dev || !context) {
+ if (dev)
kfree(dev);
- if(context)
+ if (context)
kfree(context);
dev = NULL;
context = NULL;
/* Deep shit could not allocate device structure */
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs_read_super: Failed trying to allocate "
- "struct yaffs_dev. \n")));
+ "struct yaffs_dev. \n")));
return NULL;
}
memset(dev, 0, sizeof(struct yaffs_dev));
param = &(dev->param);
- memset(context,0,sizeof(struct yaffs_linux_context));
+ memset(context, 0, sizeof(struct yaffs_linux_context));
dev->os_context = context;
INIT_LIST_HEAD(&(context->context_list));
context->dev = dev;
dev->read_only = read_only;
sb->s_fs_info = dev;
-
+
dev->driver_context = mtd;
param->name = mtd->name;
/* Set up the memory size parameters.... */
- n_blocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
+ n_blocks =
+ YCALCBLOCKS(mtd->size,
+ (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
param->start_block = 0;
param->end_block = n_blocks - 1;
#ifdef CONFIG_YAFFS_XATTR
param->enable_xattr = 1;
#endif
- if(options.lazy_loading_overridden)
+ if (options.lazy_loading_overridden)
param->disable_lazy_load = !options.lazy_loading_enabled;
#ifdef CONFIG_YAFFS_DISABLE_TAGS_ECC
param->defered_dir_update = 1;
#endif
- if(options.tags_ecc_overridden)
+ if (options.tags_ecc_overridden)
param->no_tags_ecc = !options.tags_ecc_on;
#ifdef CONFIG_YAFFS_EMPTY_LOST_AND_FOUND
param->always_check_erased = 1;
#endif
- if(options.empty_lost_and_found_overridden)
+ if (options.empty_lost_and_found_overridden)
param->empty_lost_n_found = options.empty_lost_and_found;
/* ... and the functions. */
if (yaffs_version == 2) {
- param->write_chunk_tags_fn =
- nandmtd2_write_chunk_tags;
- param->read_chunk_tags_fn =
- nandmtd2_read_chunk_tags;
+ param->write_chunk_tags_fn = nandmtd2_write_chunk_tags;
+ param->read_chunk_tags_fn = nandmtd2_read_chunk_tags;
param->bad_block_fn = nandmtd2_mark_block_bad;
param->query_block_fn = nandmtd2_query_block;
yaffs_dev_to_lc(dev)->spare_buffer = YMALLOC(mtd->oobsize);
param->end_block = n_blocks - 1;
} else {
/* use the MTD interface in yaffs_mtdif1.c */
- param->write_chunk_tags_fn =
- nandmtd1_write_chunk_tags;
- param->read_chunk_tags_fn =
- nandmtd1_read_chunk_tags;
+ param->write_chunk_tags_fn = nandmtd1_write_chunk_tags;
+ param->read_chunk_tags_fn = nandmtd1_read_chunk_tags;
param->bad_block_fn = nandmtd1_mark_block_bad;
param->query_block_fn = nandmtd1_query_block;
param->is_yaffs2 = 0;
param->sb_dirty_fn = yaffs_touch_super;
param->gc_control = yaffs_gc_control_callback;
- yaffs_dev_to_lc(dev)->super= sb;
-
+ yaffs_dev_to_lc(dev)->super = sb;
#ifndef CONFIG_YAFFS_DOES_ECC
param->use_nand_ecc = 1;
#endif
-#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES
- param->wide_tnodes_disabled = 1;
-#endif
-
param->skip_checkpt_rd = options.skip_checkpoint_read;
param->skip_checkpt_wr = options.skip_checkpoint_write;
- down(&yaffs_context_lock);
+ mutex_lock(&yaffs_context_lock);
/* Get a mount id */
found = 0;
- for(mount_id=0; ! found; mount_id++){
+ for (mount_id = 0; !found; mount_id++) {
found = 1;
- list_for_each(l,&yaffs_context_list){
- context_iterator = list_entry(l,struct yaffs_linux_context,context_list);
- if(context_iterator->mount_id == mount_id)
+ list_for_each(l, &yaffs_context_list) {
+ context_iterator =
+ list_entry(l, struct yaffs_linux_context,
+ context_list);
+ if (context_iterator->mount_id == mount_id)
found = 0;
}
}
context->mount_id = mount_id;
- list_add_tail(&(yaffs_dev_to_lc(dev)->context_list), &yaffs_context_list);
- up(&yaffs_context_lock);
+ list_add_tail(&(yaffs_dev_to_lc(dev)->context_list),
+ &yaffs_context_list);
+ mutex_unlock(&yaffs_context_lock);
- /* Directory search handling...*/
- INIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->search_contexts));
- param->remove_obj_fn = yaffs_remove_obj_callback;
+ /* Directory search handling... */
+ INIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->search_contexts));
+ param->remove_obj_fn = yaffs_remove_obj_callback;
- init_MUTEX(&(yaffs_dev_to_lc(dev)->gross_lock));
+ mutex_init(&(yaffs_dev_to_lc(dev)->gross_lock));
yaffs_gross_lock(dev);
T(YAFFS_TRACE_OS,
(TSTR("yaffs_read_super: guts initialised %s\n"),
(err == YAFFS_OK) ? "OK" : "FAILED"));
-
- if(err == YAFFS_OK)
+
+ if (err == YAFFS_OK)
yaffs_bg_start(dev);
-
- if(!context->bg_thread)
- param->defered_dir_update = 0;
+ if (!context->bg_thread)
+ param->defered_dir_update = 0;
/* Release lock before yaffs_get_inode() */
yaffs_gross_unlock(dev);
/* Create root inode */
if (err == YAFFS_OK)
- inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0,
- yaffs_root(dev));
+ inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0, yaffs_root(dev));
if (!inode)
return NULL;
sb->s_root = root;
sb->s_dirt = !dev->is_checkpointed;
T(YAFFS_TRACE_ALWAYS,
- (TSTR("yaffs_read_super: is_checkpointed %d\n"),
- dev->is_checkpointed));
+ (TSTR("yaffs_read_super: is_checkpointed %d\n"),
+ dev->is_checkpointed));
T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: done\n")));
return sb;
}
-
static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
int silent)
{
.fs_flags = FS_REQUIRES_DEV,
};
-
#ifdef CONFIG_YAFFS_YAFFS2
static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
}
static int yaffs2_read_super(struct file_system_type *fs,
- int flags, const char *dev_name, void *data,
- struct vfsmount *mnt)
+ int flags, const char *dev_name, void *data,
+ struct vfsmount *mnt)
{
return get_sb_bdev(fs, flags, dev_name, data,
- yaffs2_internal_read_super_mtd, mnt);
+ yaffs2_internal_read_super_mtd, mnt);
}
static struct file_system_type yaffs2_fs_type = {
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
-#endif /* CONFIG_YAFFS_YAFFS2 */
+#endif /* CONFIG_YAFFS_YAFFS2 */
static struct proc_dir_entry *my_proc_entry;
static struct proc_dir_entry *debug_proc_entry;
-static char *yaffs_dump_dev_part0(char *buf, struct yaffs_dev * dev)
-{
- buf += sprintf(buf, "start_block........... %d\n", dev->param.start_block);
- buf += sprintf(buf, "end_block............. %d\n", dev->param.end_block);
- buf += sprintf(buf, "total_bytes_per_chunk. %d\n", dev->param.total_bytes_per_chunk);
- buf += sprintf(buf, "use_nand_ecc.......... %d\n", dev->param.use_nand_ecc);
- buf += sprintf(buf, "no_tags_ecc........... %d\n", dev->param.no_tags_ecc);
- buf += sprintf(buf, "is_yaffs2............. %d\n", dev->param.is_yaffs2);
- buf += sprintf(buf, "inband_tags........... %d\n", dev->param.inband_tags);
- buf += sprintf(buf, "empty_lost_n_found.... %d\n", dev->param.empty_lost_n_found);
- buf += sprintf(buf, "disable_lazy_load..... %d\n", dev->param.disable_lazy_load);
- buf += sprintf(buf, "refresh_period........ %d\n", dev->param.refresh_period);
+static char *yaffs_dump_dev_part0(char *buf, struct yaffs_dev *dev)
+{
+ buf +=
+ sprintf(buf, "start_block........... %d\n", dev->param.start_block);
+ buf +=
+ sprintf(buf, "end_block............. %d\n", dev->param.end_block);
+ buf +=
+ sprintf(buf, "total_bytes_per_chunk. %d\n",
+ dev->param.total_bytes_per_chunk);
+ buf +=
+ sprintf(buf, "use_nand_ecc.......... %d\n",
+ dev->param.use_nand_ecc);
+ buf +=
+ sprintf(buf, "no_tags_ecc........... %d\n", dev->param.no_tags_ecc);
+ buf +=
+ sprintf(buf, "is_yaffs2............. %d\n", dev->param.is_yaffs2);
+ buf +=
+ sprintf(buf, "inband_tags........... %d\n", dev->param.inband_tags);
+ buf +=
+ sprintf(buf, "empty_lost_n_found.... %d\n",
+ dev->param.empty_lost_n_found);
+ buf +=
+ sprintf(buf, "disable_lazy_load..... %d\n",
+ dev->param.disable_lazy_load);
+ buf +=
+ sprintf(buf, "refresh_period........ %d\n",
+ dev->param.refresh_period);
buf += sprintf(buf, "n_caches.............. %d\n", dev->param.n_caches);
- buf += sprintf(buf, "n_reserved_blocks..... %d\n", dev->param.n_reserved_blocks);
- buf += sprintf(buf, "always_check_erased... %d\n", dev->param.always_check_erased);
+ buf +=
+ sprintf(buf, "n_reserved_blocks..... %d\n",
+ dev->param.n_reserved_blocks);
+ buf +=
+ sprintf(buf, "always_check_erased... %d\n",
+ dev->param.always_check_erased);
buf += sprintf(buf, "\n");
return buf;
}
-
-static char *yaffs_dump_dev_part1(char *buf, struct yaffs_dev * dev)
+static char *yaffs_dump_dev_part1(char *buf, struct yaffs_dev *dev)
{
- buf += sprintf(buf, "data_bytes_per_chunk.. %d\n", dev->data_bytes_per_chunk);
+ buf +=
+ sprintf(buf, "data_bytes_per_chunk.. %d\n",
+ dev->data_bytes_per_chunk);
buf += sprintf(buf, "chunk_grp_bits........ %d\n", dev->chunk_grp_bits);
buf += sprintf(buf, "chunk_grp_size........ %d\n", dev->chunk_grp_size);
- buf += sprintf(buf, "n_erased_blocks....... %d\n", dev->n_erased_blocks);
- buf += sprintf(buf, "blocks_in_checkpt..... %d\n", dev->blocks_in_checkpt);
+ buf +=
+ sprintf(buf, "n_erased_blocks....... %d\n", dev->n_erased_blocks);
+ buf +=
+ sprintf(buf, "blocks_in_checkpt..... %d\n", dev->blocks_in_checkpt);
buf += sprintf(buf, "\n");
buf += sprintf(buf, "n_tnodes.............. %d\n", dev->n_tnodes);
buf += sprintf(buf, "n_obj................. %d\n", dev->n_obj);
buf += sprintf(buf, "n_erasures............ %u\n", dev->n_erasures);
buf += sprintf(buf, "n_gc_copies........... %u\n", dev->n_gc_copies);
buf += sprintf(buf, "all_gcs............... %u\n", dev->all_gcs);
- buf += sprintf(buf, "passive_gc_count...... %u\n", dev->passive_gc_count);
- buf += sprintf(buf, "oldest_dirty_gc_count. %u\n", dev->oldest_dirty_gc_count);
+ buf +=
+ sprintf(buf, "passive_gc_count...... %u\n", dev->passive_gc_count);
+ buf +=
+ sprintf(buf, "oldest_dirty_gc_count. %u\n",
+ dev->oldest_dirty_gc_count);
buf += sprintf(buf, "n_gc_blocks........... %u\n", dev->n_gc_blocks);
buf += sprintf(buf, "bg_gcs................ %u\n", dev->bg_gcs);
- buf += sprintf(buf, "n_retired_writes...... %u\n", dev->n_retired_writes);
- buf += sprintf(buf, "n_retired_blocks...... %u\n", dev->n_retired_blocks);
+ buf +=
+ sprintf(buf, "n_retired_writes...... %u\n", dev->n_retired_writes);
+ buf +=
+ sprintf(buf, "n_retired_blocks...... %u\n", dev->n_retired_blocks);
buf += sprintf(buf, "n_ecc_fixed........... %u\n", dev->n_ecc_fixed);
buf += sprintf(buf, "n_ecc_unfixed......... %u\n", dev->n_ecc_unfixed);
- buf += sprintf(buf, "n_tags_ecc_fixed...... %u\n", dev->n_tags_ecc_fixed);
- buf += sprintf(buf, "n_tags_ecc_unfixed.... %u\n", dev->n_tags_ecc_unfixed);
+ buf +=
+ sprintf(buf, "n_tags_ecc_fixed...... %u\n", dev->n_tags_ecc_fixed);
+ buf +=
+ sprintf(buf, "n_tags_ecc_unfixed.... %u\n",
+ dev->n_tags_ecc_unfixed);
buf += sprintf(buf, "cache_hits............ %u\n", dev->cache_hits);
- buf += sprintf(buf, "n_deleted_files....... %u\n", dev->n_deleted_files);
- buf += sprintf(buf, "n_unlinked_files...... %u\n", dev->n_unlinked_files);
+ buf +=
+ sprintf(buf, "n_deleted_files....... %u\n", dev->n_deleted_files);
+ buf +=
+ sprintf(buf, "n_unlinked_files...... %u\n", dev->n_unlinked_files);
buf += sprintf(buf, "refresh_count......... %u\n", dev->refresh_count);
buf += sprintf(buf, "n_bg_deletions........ %u\n", dev->n_bg_deletions);
/* Print header first */
if (step == 0)
- buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__"\n");
+ buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__ "\n");
else if (step == 1)
- buf += sprintf(buf,"\n");
+ buf += sprintf(buf, "\n");
else {
- step-=2;
-
- down(&yaffs_context_lock);
+ step -= 2;
+
+ mutex_lock(&yaffs_context_lock);
/* Locate and print the Nth entry. Order N-squared but N is small. */
list_for_each(item, &yaffs_context_list) {
- struct yaffs_linux_context *dc = list_entry(item, struct yaffs_linux_context, context_list);
+ struct yaffs_linux_context *dc =
+ list_entry(item, struct yaffs_linux_context,
+ context_list);
struct yaffs_dev *dev = dc->dev;
if (n < (step & ~1)) {
- n+=2;
+ n += 2;
continue;
}
- if((step & 1)==0){
- buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->param.name);
+ if ((step & 1) == 0) {
+ buf +=
+ sprintf(buf, "\nDevice %d \"%s\"\n", n,
+ dev->param.name);
buf = yaffs_dump_dev_part0(buf, dev);
- } else
+ } else {
buf = yaffs_dump_dev_part1(buf, dev);
-
+ }
+
break;
}
- up(&yaffs_context_lock);
+ mutex_unlock(&yaffs_context_lock);
}
return buf - page < count ? buf - page : count;
}
static int yaffs_stats_proc_read(char *page,
- char **start,
- off_t offset, int count, int *eof, void *data)
+ char **start,
+ off_t offset, int count, int *eof, void *data)
{
struct list_head *item;
char *buf = page;
int n = 0;
- down(&yaffs_context_lock);
+ mutex_lock(&yaffs_context_lock);
/* Locate and print the Nth entry. Order N-squared but N is small. */
list_for_each(item, &yaffs_context_list) {
- struct yaffs_linux_context *dc = list_entry(item, struct yaffs_linux_context, context_list);
+ struct yaffs_linux_context *dc =
+ list_entry(item, struct yaffs_linux_context, context_list);
struct yaffs_dev *dev = dc->dev;
int erased_chunks;
- erased_chunks = dev->n_erased_blocks * dev->param.chunks_per_block;
-
- buf += sprintf(buf,"%d, %d, %d, %u, %u, %u, %u\n",
- n, dev->n_free_chunks, erased_chunks,
- dev->bg_gcs, dev->oldest_dirty_gc_count,
- dev->n_obj, dev->n_tnodes);
- }
- up(&yaffs_context_lock);
+ erased_chunks =
+ dev->n_erased_blocks * dev->param.chunks_per_block;
+ buf += sprintf(buf, "%d, %d, %d, %u, %u, %u, %u\n",
+ n, dev->n_free_chunks, erased_chunks,
+ dev->bg_gcs, dev->oldest_dirty_gc_count,
+ dev->n_obj, dev->n_tnodes);
+ }
+ mutex_unlock(&yaffs_context_lock);
return buf - page < count ? buf - page : count;
}
char *mask_name;
unsigned mask_bitfield;
} mask_flags[] = {
- {"allocate", YAFFS_TRACE_ALLOCATE},
+ {"allocate", YAFFS_TRACE_ALLOCATE},
{"always", YAFFS_TRACE_ALWAYS},
{"background", YAFFS_TRACE_BACKGROUND},
{"bad_blocks", YAFFS_TRACE_BAD_BLOCKS},
{"os", YAFFS_TRACE_OS},
{"scan_debug", YAFFS_TRACE_SCAN_DEBUG},
{"scan", YAFFS_TRACE_SCAN},
+ {"mount", YAFFS_TRACE_MOUNT},
{"tracing", YAFFS_TRACE_TRACING},
{"sync", YAFFS_TRACE_SYNC},
{"write", YAFFS_TRACE_WRITE},
-
{"verify", YAFFS_TRACE_VERIFY},
{"verify_nand", YAFFS_TRACE_VERIFY_NAND},
{"verify_full", YAFFS_TRACE_VERIFY_FULL},
{"verify_all", YAFFS_TRACE_VERIFY_ALL},
-
{"all", 0xffffffff},
{"none", 0},
{NULL, 0},
#define MAX_MASK_NAME_LENGTH 40
static int yaffs_proc_write_trace_options(struct file *file, const char *buf,
- unsigned long count, void *data)
+ unsigned long count, void *data)
{
unsigned rg = 0, mask_bitfield;
char *end;
done = 0;
} else {
for (x = buf + pos, i = 0;
- (*x == '_' || (*x >= 'a' && *x <= 'z')) &&
- i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
+ (*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;
+ mask_bitfield =
+ mask_flags[i].mask_bitfield;
done = 0;
break;
}
char flag;
flag = ((rg & mask_flags[i].mask_bitfield) ==
mask_flags[i].mask_bitfield) ? '+' : '-';
- printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name);
+ printk(KERN_DEBUG "%c%s\n", flag,
+ mask_flags[i].mask_name);
}
}
return count;
}
-
static int yaffs_proc_write(struct file *file, const char *buf,
- unsigned long count, void *data)
+ unsigned long count, void *data)
{
- return yaffs_proc_write_trace_options(file, buf, count, data);
+ return yaffs_proc_write_trace_options(file, buf, count, data);
}
/* Stuff to handle installation of file systems */
#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED
T(YAFFS_TRACE_ALWAYS,
- (TSTR(" \n\n\n\nYAFFS-WARNING CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED selected.\n\n\n\n")));
+ (TSTR
+ (" \n\n\n\nYAFFS-WARNING CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED selected.\n\n\n\n")));
#endif
-
-
-
- init_MUTEX(&yaffs_context_lock);
+ mutex_init(&yaffs_context_lock);
/* Install the proc_fs entries */
my_proc_entry = create_proc_entry("yaffs",
- S_IRUGO | S_IFREG,
- YPROC_ROOT);
+ S_IRUGO | S_IFREG, YPROC_ROOT);
if (my_proc_entry) {
my_proc_entry->write_proc = yaffs_proc_write;
my_proc_entry->read_proc = yaffs_proc_read;
my_proc_entry->data = NULL;
- } else
+ } else {
return -ENOMEM;
+ }
debug_proc_entry = create_proc_entry("yaffs_stats",
- S_IRUGO | S_IFREG,
- YPROC_ROOT);
+ S_IRUGO | S_IFREG, YPROC_ROOT);
if (debug_proc_entry) {
debug_proc_entry->write_proc = NULL;
debug_proc_entry->read_proc = yaffs_stats_proc_read;
debug_proc_entry->data = NULL;
- } else
+ } else {
return -ENOMEM;
+ }
/* Now add the file system entries */
struct file_system_to_install *fsinst;
T(YAFFS_TRACE_ALWAYS,
- (TSTR("yaffs built " __DATE__ " " __TIME__ " removing. \n")));
+ (TSTR("yaffs built " __DATE__ " " __TIME__ " removing. \n")));
remove_proc_entry("yaffs", YPROC_ROOT);
remove_proc_entry("yaffs_stats", YPROC_ROOT);
}
module_init(init_yaffs_fs)
-module_exit(exit_yaffs_fs)
+ module_exit(exit_yaffs_fs)
-MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
+ MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2010");
MODULE_LICENSE("GPL");
projects / yaffs2.git / blobdiff