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fs: add sync_inode_metadata

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Add a new helper to write out the inode using the writeback code,
that is including the correct dirty bit and list manipulation.  A few
of filesystems already opencode this, and a lot of others should be
using it instead of using write_inode_now which also writes out the
data.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Christoph Hellwig 2010-10-06 10:48:20 +02:00 • committed by Al Viro
commit c37650161a
10 changed files with 30 additions and 41 deletions
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2
fs/ext2/dir.c
View file

@ -98,7 +98,7 @@ static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len)
if (IS_DIRSYNC(dir)) {
err = write_one_page(page, 1);
if (!err)
err = ext2_sync_inode(dir);
err = sync_inode_metadata(dir, 1);
} else {
unlock_page(page);
}

1
fs/ext2/ext2.h
View file

@ -120,7 +120,6 @@ extern unsigned long ext2_count_free (struct buffer_head *, unsigned);
extern struct inode *ext2_iget (struct super_block *, unsigned long);
extern int ext2_write_inode (struct inode *, struct writeback_control *);
extern void ext2_evict_inode(struct inode *);
extern int ext2_sync_inode (struct inode *);
extern int ext2_get_block(struct inode *, sector_t, struct buffer_head *, int);
extern int ext2_setattr (struct dentry *, struct iattr *);
extern void ext2_set_inode_flags(struct inode *inode);

11
fs/ext2/inode.c
View file

@ -1203,7 +1203,7 @@ static int ext2_setsize(struct inode *inode, loff_t newsize)
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
if (inode_needs_sync(inode)) {
sync_mapping_buffers(inode->i_mapping);
ext2_sync_inode (inode);
sync_inode_metadata(inode, 1);
} else {
mark_inode_dirty(inode);
}
@ -1523,15 +1523,6 @@ int ext2_write_inode(struct inode *inode, struct writeback_control *wbc)
return __ext2_write_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
}
int ext2_sync_inode(struct inode *inode)
{
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.nr_to_write = 0, /* sys_fsync did this */
};
return sync_inode(inode, &wbc);
}
int ext2_setattr(struct dentry *dentry, struct iattr *iattr)
{
struct inode *inode = dentry->d_inode;

2
fs/ext2/xattr.c
View file

@ -699,7 +699,7 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh,
EXT2_I(inode)->i_file_acl = new_bh ? new_bh->b_blocknr : 0;
inode->i_ctime = CURRENT_TIME_SEC;
if (IS_SYNC(inode)) {
error = ext2_sync_inode (inode);
error = sync_inode_metadata(inode, 1);
/* In case sync failed due to ENOSPC the inode was actually
* written (only some dirty data were not) so we just proceed
* as if nothing happened and cleanup the unused block */