/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
- * Copyright (C) 2002-2010 Aleph One Ltd.
+ * Copyright (C) 2002-2011 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10))
#define YAFFS_COMPILE_BACKGROUND
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6, 23))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 23))
#define YAFFS_COMPILE_FREEZER
#endif
#endif
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28))
#define YAFFS_COMPILE_EXPORTFS
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35))
#define YAFFS_USE_SETATTR_COPY
#define YAFFS_USE_TRUNCATE_SETSIZE
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35))
#define YAFFS_HAS_EVICT_INODE
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
#define YAFFS_NEW_FOLLOW_LINK 1
#else
#define YAFFS_NEW_FOLLOW_LINK 0
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/proc_fs.h>
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39))
#include <linux/smp_lock.h>
+#endif
#include <linux/pagemap.h>
#include <linux/mtd/mtd.h>
#include <linux/interrupt.h>
#define YPROC_ROOT NULL
#endif
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26))
#define Y_INIT_TIMER(a) init_timer(a)
#else
#define Y_INIT_TIMER(a) init_timer_on_stack(a)
#define YAFFS_USE_WRITE_BEGIN_END 0
#endif
+
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0))
+#define set_nlink(inode, count) do { (inode)->i_nlink = (count); } while(0)
+#endif
+
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
{
#include "yaffs_linux.h"
#include "yaffs_mtdif.h"
-#include "yaffs_mtdif1.h"
-#include "yaffs_mtdif2.h"
unsigned int yaffs_trace_mask = YAFFS_TRACE_BAD_BLOCKS | YAFFS_TRACE_ALWAYS;
unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
unsigned int yaffs_auto_checkpoint = 1;
unsigned int yaffs_gc_control = 1;
unsigned int yaffs_bg_enable = 1;
-
+unsigned int yaffs_auto_select = 1;
/* Module Parameters */
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
module_param(yaffs_trace_mask, uint, 0644);
#define yaffs_inode_to_obj_lv(iptr) ((iptr)->u.generic_ip)
#endif
-#define yaffs_inode_to_obj(iptr) ((struct yaffs_obj *)(yaffs_inode_to_obj_lv(iptr)))
+#define yaffs_inode_to_obj(iptr) \
+ ((struct yaffs_obj *)(yaffs_inode_to_obj_lv(iptr)))
#define yaffs_dentry_to_obj(dptr) yaffs_inode_to_obj((dptr)->d_inode)
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
#define update_dir_time(dir) do {\
(dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \
- } while(0)
+ } 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_file_flush(struct file *file);
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+static int yaffs_sync_object(struct file *file, loff_t start, loff_t end, int datasync);
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
static int yaffs_sync_object(struct file *file, int datasync);
#else
static int yaffs_sync_object(struct file *file, struct dentry *dentry,
static int yaffs_writepage(struct page *page);
#endif
-#ifdef CONFIG_YAFFS_XATTR
static int yaffs_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
-static ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff,
- size_t size);
+static ssize_t yaffs_getxattr(struct dentry *dentry, const char *name,
+ void *buff, size_t size);
static int yaffs_removexattr(struct dentry *dentry, const char *name);
static ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size);
-#endif
#if (YAFFS_USE_WRITE_BEGIN_END != 0)
static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
};
#endif
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25))
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
static void zero_user_segment(struct page *page, unsigned start, unsigned end)
{
void *kaddr = kmap_atomic(page, KM_USER0);
static const struct inode_operations yaffs_file_inode_operations = {
.setattr = yaffs_setattr,
-#ifdef CONFIG_YAFFS_XATTR
.setxattr = yaffs_setxattr,
.getxattr = yaffs_getxattr,
.listxattr = yaffs_listxattr,
.removexattr = yaffs_removexattr,
-#endif
};
static const struct inode_operations yaffs_symlink_inode_operations = {
.put_link = yaffs_put_link,
#endif
.setattr = yaffs_setattr,
-#ifdef CONFIG_YAFFS_XATTR
.setxattr = yaffs_setxattr,
.getxattr = yaffs_getxattr,
.listxattr = yaffs_listxattr,
.removexattr = yaffs_removexattr,
-#endif
};
static const struct inode_operations yaffs_dir_inode_operations = {
.mknod = yaffs_mknod,
.rename = yaffs_rename,
.setattr = yaffs_setattr,
-#ifdef CONFIG_YAFFS_XATTR
.setxattr = yaffs_setxattr,
.getxattr = yaffs_getxattr,
.listxattr = yaffs_listxattr,
.removexattr = yaffs_removexattr,
-#endif
};
static const struct file_operations yaffs_dir_operations = {
static int yaffs_vfs_setattr(struct inode *inode, struct iattr *attr)
{
-#ifdef YAFFS_USE_SETATTR_COPY
+#ifdef YAFFS_USE_SETATTR_COPY
setattr_copy(inode, attr);
return 0;
#else
static int yaffs_vfs_setsize(struct inode *inode, loff_t newsize)
{
-#ifdef YAFFS_USE_TRUNCATE_SETSIZE
+#ifdef YAFFS_USE_TRUNCATE_SETSIZE
truncate_setsize(inode, newsize);
return 0;
#else
* 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);
- }
+ sc = list_entry(i, struct yaffs_search_context, others);
+ if (sc->next_return == obj)
+ yaffs_search_advance(sc);
}
}
if (current != yaffs_dev_to_lc(dev)->readdir_process)
yaffs_gross_lock(dev);
- yaffs_trace(YAFFS_TRACE_OS,"yaffs_lookup for %d:%s",
+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_lookup for %d:%s",
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);
struct yaffs_obj *obj;
unsigned char *pg_buf;
int ret;
-
+ loff_t pos = ((loff_t) pg->index) << PAGE_CACHE_SHIFT;
struct yaffs_dev *dev;
yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_readpage_nolock at %08x, size %08x",
- (unsigned)(pg->index << PAGE_CACHE_SHIFT),
- (unsigned)PAGE_CACHE_SIZE);
+ "yaffs_readpage_nolock at %lld, size %08x",
+ (long long)pos,
+ (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);
+ ret = yaffs_file_rd(obj, pg_buf, pos, PAGE_CACHE_SIZE);
yaffs_gross_unlock(dev);
if (page->index > end_index || !n_bytes) {
yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_writepage at %08x, inode size = %08x!!",
- (unsigned)(page->index << PAGE_CACHE_SHIFT),
- (unsigned)inode->i_size);
+ "yaffs_writepage at %lld, inode size = %lld!!",
+ ((loff_t)page->index) << PAGE_CACHE_SHIFT,
+ inode->i_size);
yaffs_trace(YAFFS_TRACE_OS,
" -> don't care!!");
yaffs_gross_lock(dev);
yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_writepage at %08x, size %08x",
- (unsigned)(page->index << PAGE_CACHE_SHIFT), n_bytes);
+ "yaffs_writepage at %lld, size %08x",
+ ((loff_t)page->index) << PAGE_CACHE_SHIFT, n_bytes);
yaffs_trace(YAFFS_TRACE_OS,
- "writepag0: obj = %05x, ino = %05x",
- (int)obj->variant.file_variant.file_size, (int)inode->i_size);
+ "writepag0: obj = %lld, ino = %lld",
+ obj->variant.file_variant.file_size, inode->i_size);
n_written = yaffs_wr_file(obj, buffer,
- page->index << PAGE_CACHE_SHIFT, n_bytes, 0);
+ ((loff_t)page->index) << PAGE_CACHE_SHIFT, n_bytes, 0);
yaffs_touch_super(dev);
yaffs_trace(YAFFS_TRACE_OS,
- "writepag1: obj = %05x, ino = %05x",
- (int)obj->variant.file_variant.file_size, (int)inode->i_size);
+ "writepag1: obj = %lld, ino = %lld",
+ obj->variant.file_variant.file_size, inode->i_size);
yaffs_gross_unlock(dev);
addr = kva + offset_into_page;
yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_write_end addr %p pos %x n_bytes %d",
- addr, (unsigned)pos, copied);
+ "yaffs_write_end addr %p pos %lld n_bytes %d",
+ addr, pos, copied);
ret = yaffs_file_write(filp, addr, copied, &pos);
int n_bytes = to - offset;
int n_written;
- unsigned spos = pos;
- unsigned saddr;
-
kva = kmap(pg);
addr = kva + offset;
- saddr = (unsigned)addr;
-
yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_commit_write addr %x pos %x n_bytes %d",
- saddr, spos, n_bytes);
+ "yaffs_commit_write addr %p pos %lld n_bytes %d",
+ addr, pos, n_bytes);
n_written = yaffs_file_write(f, addr, n_bytes, &pos);
inode->i_size = yaffs_get_obj_length(obj);
inode->i_blocks = (inode->i_size + 511) >> 9;
- inode->i_nlink = yaffs_get_obj_link_count(obj);
+ set_nlink(inode, yaffs_get_obj_link_count(obj));
yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_fill_inode mode %x uid %d gid %d size %d count %d",
+ "yaffs_fill_inode mode %x uid %d gid %d size %lld count %d",
inode->i_mode, inode->i_uid, inode->i_gid,
- (int)inode->i_size, atomic_read(&inode->i_count));
+ inode->i_size, atomic_read(&inode->i_count));
switch (obj->yst_mode & S_IFMT) {
default: /* fifo, device or socket */
loff_t * pos)
{
struct yaffs_obj *obj;
- int n_written, ipos;
+ int n_written;
+ loff_t ipos;
struct inode *inode;
struct yaffs_dev *dev;
obj = yaffs_dentry_to_obj(f->f_dentry);
+ if (!obj) {
+ yaffs_trace(YAFFS_TRACE_OS,
+ "yaffs_file_write: hey obj is null!");
+ return -EINVAL;
+ }
+
dev = obj->my_dev;
yaffs_gross_lock(dev);
else
ipos = *pos;
- if (!obj)
- yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_file_write: hey obj is null!");
- else
- yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_file_write about to write writing %u(%x) bytes to object %d at %d(%x)",
- (unsigned)n, (unsigned)n, obj->obj_id, ipos, ipos);
+ yaffs_trace(YAFFS_TRACE_OS,
+ "yaffs_file_write about to write writing %u(%x) bytes to object %d at %lld",
+ (unsigned)n, (unsigned)n, obj->obj_id, ipos);
n_written = yaffs_wr_file(obj, buf, ipos, n, 0);
inode->i_blocks = (ipos + 511) >> 9;
yaffs_trace(YAFFS_TRACE_OS,
- "yaffs_file_write size updated to %d bytes, %d blocks",
+ "yaffs_file_write size updated to %lld bytes, %d blocks",
ipos, (int)(inode->i_blocks));
}
ret_val = yaffs_unlinker(obj, dentry->d_name.name);
if (ret_val == YAFFS_OK) {
- dentry->d_inode->i_nlink--;
+ inode_dec_link_count(dentry->d_inode);
dir->i_version++;
yaffs_gross_unlock(dev);
- mark_inode_dirty(dentry->d_inode);
update_dir_time(dir);
return 0;
}
obj);
if (link) {
- old_dentry->d_inode->i_nlink = yaffs_get_obj_link_count(obj);
+ set_nlink(old_dentry->d_inode, yaffs_get_obj_link_count(obj));
d_instantiate(dentry, old_dentry->d_inode);
atomic_inc(&old_dentry->d_inode->i_count);
yaffs_trace(YAFFS_TRACE_OS,
yaffs_trace(YAFFS_TRACE_OS, "yaffs_symlink");
+ if (strnlen(dentry->d_name.name, YAFFS_MAX_NAME_LENGTH + 1) >
+ YAFFS_MAX_NAME_LENGTH)
+ return -ENAMETOOLONG;
+
+ if (strnlen(symname, YAFFS_MAX_ALIAS_LENGTH + 1) >
+ YAFFS_MAX_ALIAS_LENGTH)
+ return -ENAMETOOLONG;
+
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,
return -ENOMEM;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+static int yaffs_sync_object(struct file *file, loff_t start, loff_t end, int datasync)
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
static int yaffs_sync_object(struct file *file, int datasync)
#else
static int yaffs_sync_object(struct file *file, struct dentry *dentry,
yaffs_gross_unlock(dev);
if (ret_val == YAFFS_OK) {
- if (target) {
- new_dentry->d_inode->i_nlink--;
- mark_inode_dirty(new_dentry->d_inode);
- }
+ if (target)
+ inode_dec_link_count(new_dentry->d_inode);
update_dir_time(old_dir);
if (old_dir != new_dir)
yaffs_trace(YAFFS_TRACE_OS,
"yaffs_setattr of object %d",
yaffs_inode_to_obj(inode)->obj_id);
-
+#if 0
/* Fail if a requested resize >= 2GB */
if (attr->ia_valid & ATTR_SIZE && (attr->ia_size >> 31))
error = -EINVAL;
+#endif
if (error == 0)
error = inode_change_ok(inode, attr);
return error;
}
-#ifdef CONFIG_YAFFS_XATTR
static int yaffs_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
return error;
}
-#endif
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
* yaffs_bg_start() launches the background thread.
* yaffs_bg_stop() cleans up the background thread.
*
- * NB:
+ * NB:
* The thread should only run after the yaffs is initialised
* The thread should be stopped before yaffs is unmounted.
* The thread should not do any writing while the fs is in read only.
static void yaffs_put_super(struct super_block *sb)
{
struct yaffs_dev *dev = yaffs_super_to_dev(sb);
+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
- yaffs_trace(YAFFS_TRACE_OS, "yaffs_put_super");
+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_ALWAYS,
+ "yaffs_put_super");
yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND,
"Shutting down yaffs background thread");
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);
}
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));
- if (mtd->sync)
+ if (mtd && mtd->sync)
mtd->sync(mtd);
- put_mtd_device(mtd);
+ if(mtd)
+ put_mtd_device(mtd);
+
+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_ALWAYS,
+ "yaffs_put_super done");
}
+
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;
+ int disable_summary;
};
#define MAX_OPT_LEN 30
} else if (!strcmp(cur_opt, "lazy-loading-on")) {
options->lazy_loading_enabled = 1;
options->lazy_loading_overridden = 1;
+ } else if (!strcmp(cur_opt, "disable-summary")) {
+ options->disable_summary = 1;
} else if (!strcmp(cur_opt, "empty-lost-and-found-off")) {
options->empty_lost_and_found = 0;
options->empty_lost_and_found_overridden = 1;
struct yaffs_linux_context *context_iterator;
struct list_head *l;
+ if (!sb) {
+ printk(KERN_INFO "yaffs: sb is NULL\n");
+ return NULL;
+ }
+
sb->s_magic = YAFFS_MAGIC;
sb->s_op = &yaffs_super_ops;
sb->s_flags |= MS_NOATIME;
sb->s_export_op = &yaffs_export_ops;
#endif
- if (!sb)
- printk(KERN_INFO "yaffs: sb is NULL\n");
- else if (!sb->s_dev)
+ if (!sb->s_dev)
printk(KERN_INFO "yaffs: sb->s_dev is NULL\n");
else if (!yaffs_devname(sb, devname_buf))
printk(KERN_INFO "yaffs: devname is NULL\n");
yaffs_trace(YAFFS_TRACE_OS, " size %lld", mtd->size);
#endif
-#ifdef CONFIG_YAFFS_AUTO_YAFFS2
-
- if (yaffs_version == 1 && WRITE_SIZE(mtd) >= 2048) {
+ if (yaffs_auto_select && yaffs_version == 1 && WRITE_SIZE(mtd) >= 2048) {
yaffs_trace(YAFFS_TRACE_ALWAYS, "auto selecting yaffs2");
yaffs_version = 2;
}
yaffs_trace(YAFFS_TRACE_ALWAYS, "auto selecting yaffs1");
yaffs_version = 1;
}
-#endif
if (yaffs_version == 2) {
/* Check for version 2 style functions */
sb->u.generic_sbp = dev;
#endif
+
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));
- param->start_block = 0;
- param->end_block = n_blocks - 1;
- param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK;
- param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK;
param->n_reserved_blocks = 5;
param->n_caches = (options.no_cache) ? 0 : 10;
param->inband_tags = options.inband_tags;
-#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD
- param->disable_lazy_load = 1;
-#endif
-#ifdef CONFIG_YAFFS_XATTR
param->enable_xattr = 1;
-#endif
if (options.lazy_loading_overridden)
param->disable_lazy_load = !options.lazy_loading_enabled;
-#ifdef CONFIG_YAFFS_DISABLE_TAGS_ECC
- param->no_tags_ecc = 1;
-#endif
-
-#ifdef CONFIG_YAFFS_DISABLE_BACKGROUND
-#else
param->defered_dir_update = 1;
-#endif
if (options.tags_ecc_overridden)
param->no_tags_ecc = !options.tags_ecc_on;
-#ifdef CONFIG_YAFFS_EMPTY_LOST_AND_FOUND
param->empty_lost_n_found = 1;
-#endif
-
-#ifdef CONFIG_YAFFS_DISABLE_BLOCK_REFRESHING
- param->refresh_period = 0;
-#else
param->refresh_period = 500;
-#endif
-
-#ifdef CONFIG_YAFFS__ALWAYS_CHECK_CHUNK_ERASED
- param->always_check_erased = 1;
-#endif
+ param->disable_summary = options.disable_summary;
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->bad_block_fn = nandmtd2_mark_block_bad;
- param->query_block_fn = nandmtd2_query_block;
- yaffs_dev_to_lc(dev)->spare_buffer =
- kmalloc(mtd->oobsize, GFP_NOFS);
param->is_yaffs2 = 1;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
param->total_bytes_per_chunk = mtd->writesize;
param->start_block = 0;
param->end_block = n_blocks - 1;
} else {
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
- /* 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->bad_block_fn = nandmtd1_mark_block_bad;
- param->query_block_fn = nandmtd1_query_block;
-#else
- param->write_chunk_fn = nandmtd_write_chunk;
- param->read_chunk_fn = nandmtd_read_chunk;
-#endif
param->is_yaffs2 = 0;
+ n_blocks = YCALCBLOCKS(mtd->size,
+ YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
+
+ param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK;
+ param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK;
}
- /* ... and common functions */
- param->erase_fn = nandmtd_erase_block;
- param->initialise_flash_fn = nandmtd_initialise;
- yaffs_dev_to_lc(dev)->put_super_fn = yaffs_mtd_put_super;
+ param->start_block = 0;
+ param->end_block = n_blocks - 1;
+
+ yaffs_mtd_drv_install(dev);
param->sb_dirty_fn = yaffs_touch_super;
- param->gc_control = yaffs_gc_control_callback;
+ param->gc_control_fn = yaffs_gc_control_callback;
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;
err = yaffs_guts_initialise(dev);
- yaffs_trace(YAFFS_TRACE_OS,
+ yaffs_trace(YAFFS_TRACE_OS,
"yaffs_read_super: guts initialised %s",
(err == YAFFS_OK) ? "OK" : "FAILED");
if (!context->bg_thread)
param->defered_dir_update = 0;
+ sb->s_maxbytes = yaffs_max_file_size(dev);
+
/* Release lock before yaffs_get_inode() */
yaffs_gross_unlock(dev);
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, 39))
+static struct dentry *yaffs_mount(struct file_system_type *fs_type, int flags,
+ const char *dev_name, void *data)
+{
+ return mount_bdev(fs_type, flags, dev_name, data, yaffs_internal_read_super_mtd);
+}
+#elif (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)
static struct file_system_type yaffs_fs_type = {
.owner = THIS_MODULE,
.name = "yaffs",
- .get_sb = yaffs_read_super,
- .kill_sb = kill_block_super,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+ .mount = yaffs_mount,
+#else
+ .get_sb = yaffs_read_super,
+#endif
+ .kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
#else
FS_REQUIRES_DEV);
#endif
-#ifdef CONFIG_YAFFS_YAFFS2
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
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, 39))
+static struct dentry *yaffs2_mount(struct file_system_type *fs_type, int flags,
+ const char *dev_name, void *data)
+{
+ return mount_bdev(fs_type, flags, dev_name, data, yaffs2_internal_read_super_mtd);
+}
+#elif (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)
static struct file_system_type yaffs2_fs_type = {
.owner = THIS_MODULE,
.name = "yaffs2",
- .get_sb = yaffs2_read_super,
- .kill_sb = kill_block_super,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+ .mount = yaffs2_mount,
+#else
+ .get_sb = yaffs2_read_super,
+#endif
+ .kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
#else
FS_REQUIRES_DEV);
#endif
-#endif /* CONFIG_YAFFS_YAFFS2 */
static struct proc_dir_entry *my_proc_entry;
static char *yaffs_dump_dev_part1(char *buf, struct yaffs_dev *dev)
{
+ buf += sprintf(buf, "max file size....... %lld\n",
+ (long long) yaffs_max_file_size(dev));
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);
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_retried_writes..... %u\n",
+ dev->n_retried_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);
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);
+ buf += sprintf(buf, "tags_used............ %u\n", dev->tags_used);
+ buf += sprintf(buf, "summary_used......... %u\n", dev->summary_used);
return buf;
}
yaffs_trace(YAFFS_TRACE_ALWAYS,
"yaffs built " __DATE__ " " __TIME__ " Installing.");
-#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED
- yaffs_trace(YAFFS_TRACE_ALWAYS,
- " \n\n\n\nYAFFS-WARNING CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED selected.\n\n\n\n"
- );
-#endif
-
mutex_init(&yaffs_context_lock);
/* Install the proc_fs entries */
module_exit(exit_yaffs_fs)
MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
-MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2010");
+MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2011");
MODULE_LICENSE("GPL");
projects / yaffs2.git / blobdiff