* 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext3: Add replace-on-rename hueristics for data=writeback mode
ext3: Add replace-on-truncate hueristics for data=writeback mode
ext3: Use WRITE_SYNC for commits which are caused by fsync()
block_write_full_page: Use synchronous writes for WBC_SYNC_ALL writebacks
put_bh(bh);
}
-/*
- * Write out and wait upon all the dirty data associated with a block
- * device via its mapping. Does not take the superblock lock.
- */
-int sync_blockdev(struct block_device *bdev)
-{
- int ret = 0;
-
- if (bdev)
- ret = filemap_write_and_wait(bdev->bd_inode->i_mapping);
- return ret;
-}
-EXPORT_SYMBOL(sync_blockdev);
-
-/*
- * Write out and wait upon all dirty data associated with this
- * device. Filesystem data as well as the underlying block
- * device. Takes the superblock lock.
- */
-int fsync_bdev(struct block_device *bdev)
-{
- struct super_block *sb = get_super(bdev);
- if (sb) {
- int res = fsync_super(sb);
- drop_super(sb);
- return res;
- }
- return sync_blockdev(bdev);
-}
-
-/**
- * freeze_bdev -- lock a filesystem and force it into a consistent state
- * @bdev: blockdevice to lock
- *
- * This takes the block device bd_mount_sem to make sure no new mounts
- * happen on bdev until thaw_bdev() is called.
- * If a superblock is found on this device, we take the s_umount semaphore
- * on it to make sure nobody unmounts until the snapshot creation is done.
- * The reference counter (bd_fsfreeze_count) guarantees that only the last
- * unfreeze process can unfreeze the frozen filesystem actually when multiple
- * freeze requests arrive simultaneously. It counts up in freeze_bdev() and
- * count down in thaw_bdev(). When it becomes 0, thaw_bdev() will unfreeze
- * actually.
- */
-struct super_block *freeze_bdev(struct block_device *bdev)
-{
- struct super_block *sb;
- int error = 0;
-
- mutex_lock(&bdev->bd_fsfreeze_mutex);
- if (bdev->bd_fsfreeze_count > 0) {
- bdev->bd_fsfreeze_count++;
- sb = get_super(bdev);
- mutex_unlock(&bdev->bd_fsfreeze_mutex);
- return sb;
- }
- bdev->bd_fsfreeze_count++;
-
- down(&bdev->bd_mount_sem);
- sb = get_super(bdev);
- if (sb && !(sb->s_flags & MS_RDONLY)) {
- sb->s_frozen = SB_FREEZE_WRITE;
- smp_wmb();
-
- __fsync_super(sb);
-
- sb->s_frozen = SB_FREEZE_TRANS;
- smp_wmb();
-
- sync_blockdev(sb->s_bdev);
-
- if (sb->s_op->freeze_fs) {
- error = sb->s_op->freeze_fs(sb);
- if (error) {
- printk(KERN_ERR
- "VFS:Filesystem freeze failed\n");
- sb->s_frozen = SB_UNFROZEN;
- drop_super(sb);
- up(&bdev->bd_mount_sem);
- bdev->bd_fsfreeze_count--;
- mutex_unlock(&bdev->bd_fsfreeze_mutex);
- return ERR_PTR(error);
- }
- }
- }
-
- sync_blockdev(bdev);
- mutex_unlock(&bdev->bd_fsfreeze_mutex);
-
- return sb; /* thaw_bdev releases s->s_umount and bd_mount_sem */
-}
-EXPORT_SYMBOL(freeze_bdev);
-
-/**
- * thaw_bdev -- unlock filesystem
- * @bdev: blockdevice to unlock
- * @sb: associated superblock
- *
- * Unlocks the filesystem and marks it writeable again after freeze_bdev().
- */
-int thaw_bdev(struct block_device *bdev, struct super_block *sb)
-{
- int error = 0;
-
- mutex_lock(&bdev->bd_fsfreeze_mutex);
- if (!bdev->bd_fsfreeze_count) {
- mutex_unlock(&bdev->bd_fsfreeze_mutex);
- return -EINVAL;
- }
-
- bdev->bd_fsfreeze_count--;
- if (bdev->bd_fsfreeze_count > 0) {
- if (sb)
- drop_super(sb);
- mutex_unlock(&bdev->bd_fsfreeze_mutex);
- return 0;
- }
-
- if (sb) {
- BUG_ON(sb->s_bdev != bdev);
- if (!(sb->s_flags & MS_RDONLY)) {
- if (sb->s_op->unfreeze_fs) {
- error = sb->s_op->unfreeze_fs(sb);
- if (error) {
- printk(KERN_ERR
- "VFS:Filesystem thaw failed\n");
- sb->s_frozen = SB_FREEZE_TRANS;
- bdev->bd_fsfreeze_count++;
- mutex_unlock(&bdev->bd_fsfreeze_mutex);
- return error;
- }
- }
- sb->s_frozen = SB_UNFROZEN;
- smp_wmb();
- wake_up(&sb->s_wait_unfrozen);
- }
- drop_super(sb);
- }
-
- up(&bdev->bd_mount_sem);
- mutex_unlock(&bdev->bd_fsfreeze_mutex);
- return 0;
-}
-EXPORT_SYMBOL(thaw_bdev);
-
/*
* Various filesystems appear to want __find_get_block to be non-blocking.
* But it's the page lock which protects the buffers. To get around this,
head = page_buffers(page);
bh = head;
do {
- if (bh->b_blocknr == block) {
+ if (!buffer_mapped(bh))
+ all_mapped = 0;
+ else if (bh->b_blocknr == block) {
ret = bh;
get_bh(bh);
goto out_unlock;
}
- if (!buffer_mapped(bh))
- all_mapped = 0;
bh = bh->b_this_page;
} while (bh != head);
&zone);
if (zone)
try_to_free_pages(node_zonelist(nid, GFP_NOFS), 0,
- GFP_NOFS);
+ GFP_NOFS, NULL);
}
}
return err;
}
+void do_thaw_all(unsigned long unused)
+{
+ struct super_block *sb;
+ char b[BDEVNAME_SIZE];
+
+ spin_lock(&sb_lock);
+restart:
+ list_for_each_entry(sb, &super_blocks, s_list) {
+ sb->s_count++;
+ spin_unlock(&sb_lock);
+ down_read(&sb->s_umount);
+ while (sb->s_bdev && !thaw_bdev(sb->s_bdev, sb))
+ printk(KERN_WARNING "Emergency Thaw on %s\n",
+ bdevname(sb->s_bdev, b));
+ up_read(&sb->s_umount);
+ spin_lock(&sb_lock);
+ if (__put_super_and_need_restart(sb))
+ goto restart;
+ }
+ spin_unlock(&sb_lock);
+ printk(KERN_WARNING "Emergency Thaw complete\n");
+}
+
+/**
+ * emergency_thaw_all -- forcibly thaw every frozen filesystem
+ *
+ * Used for emergency unfreeze of all filesystems via SysRq
+ */
+void emergency_thaw_all(void)
+{
+ pdflush_operation(do_thaw_all, 0);
+}
+
/**
* sync_mapping_buffers - write out & wait upon a mapping's "associated" buffers
* @mapping: the mapping which wants those buffers written
spin_lock_irq(&mapping->tree_lock);
if (page->mapping) { /* Race with truncate? */
WARN_ON_ONCE(warn && !PageUptodate(page));
-
- if (mapping_cap_account_dirty(mapping)) {
- __inc_zone_page_state(page, NR_FILE_DIRTY);
- __inc_bdi_stat(mapping->backing_dev_info,
- BDI_RECLAIMABLE);
- task_dirty_inc(current);
- task_io_account_write(PAGE_CACHE_SIZE);
- }
+ account_page_dirtied(page, mapping);
radix_tree_tag_set(&mapping->page_tree,
page_index(page), PAGECACHE_TAG_DIRTY);
}
struct buffer_head *bh, *head;
const unsigned blocksize = 1 << inode->i_blkbits;
int nr_underway = 0;
+ int write_op = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
BUG_ON(!PageLocked(page));
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
- submit_bh(WRITE, bh);
+ submit_bh(write_op, bh);
nr_underway++;
}
bh = next;
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
clear_buffer_dirty(bh);
- submit_bh(WRITE, bh);
+ submit_bh(write_op, bh);
nr_underway++;
}
bh = next;
* unlock the page.
*/
int
-block_page_mkwrite(struct vm_area_struct *vma, struct page *page,
+block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
get_block_t get_block)
{
+ struct page *page = vmf->page;
struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
unsigned long end;
loff_t size;
- int ret = -EINVAL;
+ int ret = VM_FAULT_NOPAGE; /* make the VM retry the fault */
lock_page(page);
size = i_size_read(inode);
if (!ret)
ret = block_commit_write(page, 0, end);
+ if (unlikely(ret)) {
+ if (ret == -ENOMEM)
+ ret = VM_FAULT_OOM;
+ else /* -ENOSPC, -EIO, etc */
+ ret = VM_FAULT_SIGBUS;
+ }
+
out_unlock:
unlock_page(page);
return ret;
EXPORT_SYMBOL(end_buffer_read_sync);
EXPORT_SYMBOL(end_buffer_write_sync);
EXPORT_SYMBOL(file_fsync);
-EXPORT_SYMBOL(fsync_bdev);
EXPORT_SYMBOL(generic_block_bmap);
EXPORT_SYMBOL(generic_cont_expand_simple);
EXPORT_SYMBOL(init_buffer);
*/
static int ext3_release_file (struct inode * inode, struct file * filp)
{
+ if (EXT3_I(inode)->i_state & EXT3_STATE_FLUSH_ON_CLOSE) {
+ filemap_flush(inode->i_mapping);
+ EXT3_I(inode)->i_state &= ~EXT3_STATE_FLUSH_ON_CLOSE;
+ }
/* if we are the last writer on the inode, drop the block reservation */
if ((filp->f_mode & FMODE_WRITE) &&
(atomic_read(&inode->i_writecount) == 1))
.write = do_sync_write,
.aio_read = generic_file_aio_read,
.aio_write = ext3_file_write,
- .ioctl = ext3_ioctl,
+ .unlocked_ioctl = ext3_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = ext3_compat_ioctl,
#endif
struct page **pagep, void **fsdata)
{
struct inode *inode = mapping->host;
- int ret, needed_blocks = ext3_writepage_trans_blocks(inode);
+ int ret;
handle_t *handle;
int retries = 0;
struct page *page;
pgoff_t index;
unsigned from, to;
+ /* Reserve one block more for addition to orphan list in case
+ * we allocate blocks but write fails for some reason */
+ int needed_blocks = ext3_writepage_trans_blocks(inode) + 1;
index = pos >> PAGE_CACHE_SHIFT;
from = pos & (PAGE_CACHE_SIZE - 1);
}
write_begin_failed:
if (ret) {
- ext3_journal_stop(handle);
- unlock_page(page);
- page_cache_release(page);
/*
* block_write_begin may have instantiated a few blocks
* outside i_size. Trim these off again. Don't need
* i_size_read because we hold i_mutex.
+ *
+ * Add inode to orphan list in case we crash before truncate
+ * finishes.
*/
+ if (pos + len > inode->i_size)
+ ext3_orphan_add(handle, inode);
+ ext3_journal_stop(handle);
+ unlock_page(page);
+ page_cache_release(page);
if (pos + len > inode->i_size)
vmtruncate(inode, inode->i_size);
}
return err;
}
+/* For ordered writepage and write_end functions */
+static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
+{
+ /*
+ * Write could have mapped the buffer but it didn't copy the data in
+ * yet. So avoid filing such buffer into a transaction.
+ */
+ if (buffer_mapped(bh) && buffer_uptodate(bh))
+ return ext3_journal_dirty_data(handle, bh);
+ return 0;
+}
+
/* For write_end() in data=journal mode */
static int write_end_fn(handle_t *handle, struct buffer_head *bh)
{
}
/*
- * Generic write_end handler for ordered and writeback ext3 journal modes.
- * We can't use generic_write_end, because that unlocks the page and we need to
- * unlock the page after ext3_journal_stop, but ext3_journal_stop must run
- * after block_write_end.
+ * This is nasty and subtle: ext3_write_begin() could have allocated blocks
+ * for the whole page but later we failed to copy the data in. Update inode
+ * size according to what we managed to copy. The rest is going to be
+ * truncated in write_end function.
*/
-static int ext3_generic_write_end(struct file *file,
- struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+static void update_file_sizes(struct inode *inode, loff_t pos, unsigned copied)
{
- struct inode *inode = file->f_mapping->host;
-
- copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
-
- if (pos+copied > inode->i_size) {
- i_size_write(inode, pos+copied);
+ /* What matters to us is i_disksize. We don't write i_size anywhere */
+ if (pos + copied > inode->i_size)
+ i_size_write(inode, pos + copied);
+ if (pos + copied > EXT3_I(inode)->i_disksize) {
+ EXT3_I(inode)->i_disksize = pos + copied;
mark_inode_dirty(inode);
}
-
- return copied;
}
/*
unsigned from, to;
int ret = 0, ret2;
- from = pos & (PAGE_CACHE_SIZE - 1);
- to = from + len;
+ copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
+ from = pos & (PAGE_CACHE_SIZE - 1);
+ to = from + copied;
ret = walk_page_buffers(handle, page_buffers(page),
- from, to, NULL, ext3_journal_dirty_data);
+ from, to, NULL, journal_dirty_data_fn);
- if (ret == 0) {
- /*
- * generic_write_end() will run mark_inode_dirty() if i_size
- * changes. So let's piggyback the i_disksize mark_inode_dirty
- * into that.
- */
- loff_t new_i_size;
-
- new_i_size = pos + copied;
- if (new_i_size > EXT3_I(inode)->i_disksize)
- EXT3_I(inode)->i_disksize = new_i_size;
- ret2 = ext3_generic_write_end(file, mapping, pos, len, copied,
- page, fsdata);
- copied = ret2;
- if (ret2 < 0)
- ret = ret2;
- }
+ if (ret == 0)
+ update_file_sizes(inode, pos, copied);
+ /*
+ * There may be allocated blocks outside of i_size because
+ * we failed to copy some data. Prepare for truncate.
+ */
+ if (pos + len > inode->i_size)
+ ext3_orphan_add(handle, inode);
ret2 = ext3_journal_stop(handle);
if (!ret)
ret = ret2;
unlock_page(page);
page_cache_release(page);
+ if (pos + len > inode->i_size)
+ vmtruncate(inode, inode->i_size);
return ret ? ret : copied;
}
{
handle_t *handle = ext3_journal_current_handle();
struct inode *inode = file->f_mapping->host;
- int ret = 0, ret2;
- loff_t new_i_size;
-
- new_i_size = pos + copied;
- if (new_i_size > EXT3_I(inode)->i_disksize)
- EXT3_I(inode)->i_disksize = new_i_size;
-
- ret2 = ext3_generic_write_end(file, mapping, pos, len, copied,
- page, fsdata);
- copied = ret2;
- if (ret2 < 0)
- ret = ret2;
+ int ret;
- ret2 = ext3_journal_stop(handle);
- if (!ret)
- ret = ret2;
+ copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
+ update_file_sizes(inode, pos, copied);
+ /*
+ * There may be allocated blocks outside of i_size because
+ * we failed to copy some data. Prepare for truncate.
+ */
+ if (pos + len > inode->i_size)
+ ext3_orphan_add(handle, inode);
+ ret = ext3_journal_stop(handle);
unlock_page(page);
page_cache_release(page);
+ if (pos + len > inode->i_size)
+ vmtruncate(inode, inode->i_size);
return ret ? ret : copied;
}
if (copied < len) {
if (!PageUptodate(page))
copied = 0;
- page_zero_new_buffers(page, from+copied, to);
+ page_zero_new_buffers(page, from + copied, to);
+ to = from + copied;
}
ret = walk_page_buffers(handle, page_buffers(page), from,
to, &partial, write_end_fn);
if (!partial)
SetPageUptodate(page);
- if (pos+copied > inode->i_size)
- i_size_write(inode, pos+copied);
+
+ if (pos + copied > inode->i_size)
+ i_size_write(inode, pos + copied);
+ /*
+ * There may be allocated blocks outside of i_size because
+ * we failed to copy some data. Prepare for truncate.
+ */
+ if (pos + len > inode->i_size)
+ ext3_orphan_add(handle, inode);
EXT3_I(inode)->i_state |= EXT3_STATE_JDATA;
if (inode->i_size > EXT3_I(inode)->i_disksize) {
EXT3_I(inode)->i_disksize = inode->i_size;
unlock_page(page);
page_cache_release(page);
+ if (pos + len > inode->i_size)
+ vmtruncate(inode, inode->i_size);
return ret ? ret : copied;
}
return 0;
}
-static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
+static int buffer_unmapped(handle_t *handle, struct buffer_head *bh)
{
- if (buffer_mapped(bh))
- return ext3_journal_dirty_data(handle, bh);
- return 0;
+ return !buffer_mapped(bh);
}
/*
if (ext3_journal_current_handle())
goto out_fail;
+ if (!page_has_buffers(page)) {
+ create_empty_buffers(page, inode->i_sb->s_blocksize,
+ (1 << BH_Dirty)|(1 << BH_Uptodate));
+ } else if (!walk_page_buffers(NULL, page_buffers(page), 0, PAGE_CACHE_SIZE, NULL, buffer_unmapped)) {
+ /* Provide NULL instead of get_block so that we catch bugs if buffers weren't really mapped */
+ return block_write_full_page(page, NULL, wbc);
+ }
+ page_bufs = page_buffers(page);
+
handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));
if (IS_ERR(handle)) {
goto out_fail;
}
- if (!page_has_buffers(page)) {
- create_empty_buffers(page, inode->i_sb->s_blocksize,
- (1 << BH_Dirty)|(1 << BH_Uptodate));
- }
- page_bufs = page_buffers(page);
walk_page_buffers(handle, page_bufs, 0,
PAGE_CACHE_SIZE, NULL, bget_one);
if (!ext3_can_truncate(inode))
return;
+ if (inode->i_size == 0 && ext3_should_writeback_data(inode))
+ ei->i_state |= EXT3_STATE_FLUSH_ON_CLOSE;
+
/*
* We have to lock the EOF page here, because lock_page() nests
* outside journal_start().
error = PTR_ERR(handle);
goto err_out;
}
- error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
+ error = vfs_dq_transfer(inode, attr) ? -EDQUOT : 0;
if (error) {
ext3_journal_stop(handle);
return error;
ret = 2 * (bpp + indirects) + 2;
#ifdef CONFIG_QUOTA
- /* We know that structure was already allocated during DQUOT_INIT so
+ /* We know that structure was already allocated during vfs_dq_init so
* we will be updating only the data blocks + inodes */
ret += 2*EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb);
#endif
* i_size has been changed by generic_commit_write() and we thus need
* to include the updated inode in the current transaction.
*
- * Also, DQUOT_ALLOC_SPACE() will always dirty the inode when blocks
+ * Also, vfs_dq_alloc_space() will always dirty the inode when blocks
* are allocated to the file.
*
* If the inode is marked synchronous, we don't honour that here - doing
struct dx_frame *frame,
int *err);
static void dx_release (struct dx_frame *frames);
-static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
+static int dx_make_map(struct ext3_dir_entry_2 *de, unsigned blocksize,
struct dx_hash_info *hinfo, struct dx_map_entry map[]);
static void dx_sort_map(struct dx_map_entry *map, unsigned count);
static struct ext3_dir_entry_2 *dx_move_dirents (char *from, char *to,
struct dx_map_entry *offsets, int count);
-static struct ext3_dir_entry_2* dx_pack_dirents (char *base, int size);
+static struct ext3_dir_entry_2 *dx_pack_dirents(char *base, unsigned blocksize);
static void dx_insert_block (struct dx_frame *frame, u32 hash, u32 block);
static int ext3_htree_next_block(struct inode *dir, __u32 hash,
struct dx_frame *frame,
* Create map of hash values, offsets, and sizes, stored at end of block.
* Returns number of entries mapped.
*/
-static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
- struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
+static int dx_make_map(struct ext3_dir_entry_2 *de, unsigned blocksize,
+ struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
{
int count = 0;
char *base = (char *) de;
struct dx_hash_info h = *hinfo;
- while ((char *) de < base + size)
+ while ((char *) de < base + blocksize)
{
if (de->name_len && de->inode) {
ext3fs_dirhash(de->name, de->name_len, &h);
return ERR_PTR(-EIO);
}
inode = ext3_iget(dir->i_sb, ino);
- if (IS_ERR(inode))
- return ERR_CAST(inode);
+ if (unlikely(IS_ERR(inode))) {
+ if (PTR_ERR(inode) == -ESTALE) {
+ ext3_error(dir->i_sb, __func__,
+ "deleted inode referenced: %lu",
+ ino);
+ return ERR_PTR(-EIO);
+ } else {
+ return ERR_CAST(inode);
+ }
+ }
}
return d_splice_alias(inode, dentry);
}
* Compact each dir entry in the range to the minimal rec_len.
* Returns pointer to last entry in range.
*/
-static struct ext3_dir_entry_2* dx_pack_dirents(char *base, int size)
+static struct ext3_dir_entry_2 *dx_pack_dirents(char *base, unsigned blocksize)
{
- struct ext3_dir_entry_2 *next, *to, *prev, *de = (struct ext3_dir_entry_2 *) base;
+ struct ext3_dir_entry_2 *next, *to, *prev;
+ struct ext3_dir_entry_2 *de = (struct ext3_dir_entry_2 *)base;
unsigned rec_len = 0;
prev = to = de;
- while ((char*)de < base + size) {
+ while ((char *)de < base + blocksize) {
next = ext3_next_entry(de);
if (de->inode && de->name_len) {
rec_len = EXT3_DIR_REC_LEN(de->name_len);
/* Initialize quotas before so that eventual writes go in
* separate transaction */
- DQUOT_INIT(dentry->d_inode);
+ vfs_dq_init(dentry->d_inode);
handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
- DQUOT_INIT(dentry->d_inode);
+ vfs_dq_init(dentry->d_inode);
handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
struct inode * old_inode, * new_inode;
struct buffer_head * old_bh, * new_bh, * dir_bh;
struct ext3_dir_entry_2 * old_de, * new_de;
- int retval;
+ int retval, flush_file = 0;
old_bh = new_bh = dir_bh = NULL;
/* Initialize quotas before so that eventual writes go
* in separate transaction */
if (new_dentry->d_inode)
- DQUOT_INIT(new_dentry->d_inode);
+ vfs_dq_init(new_dentry->d_inode);
handle = ext3_journal_start(old_dir, 2 *
EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) +
EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2);
ext3_mark_inode_dirty(handle, new_inode);
if (!new_inode->i_nlink)
ext3_orphan_add(handle, new_inode);
+ if (ext3_should_writeback_data(new_inode))
+ flush_file = 1;
}
retval = 0;
brelse (old_bh);
brelse (new_bh);
ext3_journal_stop(handle);
+ if (retval == 0 && flush_file)
+ filemap_flush(old_inode->i_mapping);
return retval;
}
#define EXT3_STATE_JDATA 0x00000001 /* journaled data exists */
#define EXT3_STATE_NEW 0x00000002 /* inode is newly created */
#define EXT3_STATE_XATTR 0x00000004 /* has in-inode xattrs */
+ #define EXT3_STATE_FLUSH_ON_CLOSE 0x00000008
/* Used to pass group descriptor data when online resize is done */
struct ext3_new_group_input {
u64 start, u64 len);
/* ioctl.c */
-extern int ext3_ioctl (struct inode *, struct file *, unsigned int,
- unsigned long);
-extern long ext3_compat_ioctl (struct file *, unsigned int, unsigned long);
+extern long ext3_ioctl(struct file *, unsigned int, unsigned long);
+extern long ext3_compat_ioctl(struct file *, unsigned int, unsigned long);
/* namei.c */
extern int ext3_orphan_add(handle_t *, struct inode *);
projects / linux-2.6-omap-h63xx.git / commitdiff