RepoMirrors/btrfs-progs
1
0
Fork 0
mirror of https://github.com/kdave/btrfs-progs synced 2024-12-25 15:42:23 +00:00
Code Issues Packages Projects Releases Wiki Activity

Make sure all dirty blocks are written at commit time

Browse Source 
Write dirty block groups may make some block groups dirty.
This patch make btrfs_write_dirty_block_groups properly
handle the recursion.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Yan Zheng 2009-06-03 11:59:47 -04:00 committed by Chris Mason
parent 50860d6e31
commit 0030f1d3ae
1 changed files with 13 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
extent-tree.c
View File

@ -1697,8 +1697,6 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
struct extent_io_tree *block_group_cache;
struct btrfs_block_group_cache *cache;
int ret;
int err = 0;
int werr = 0;
struct btrfs_path *path;
u64 last = 0;
u64 start;
@ -1713,30 +1711,26 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
while(1) {
ret = find_first_extent_bit(block_group_cache, last,
&start, &end, BLOCK_GROUP_DIRTY);
if (ret)
if (ret) {
if (last == 0)
break;
last = 0;
continue;
}
last = end + 1;
ret = get_state_private(block_group_cache, start, &ptr);
if (ret)
break;
cache = (struct btrfs_block_group_cache *)(unsigned long)ptr;
err = write_one_cache_group(trans, root,
path, cache);
/*
* if we fail to write the cache group, we want
* to keep it marked dirty in hopes that a later
* write will work
*/
if (err) {
werr = err;
continue;
}
BUG_ON(ret);
clear_extent_bits(block_group_cache, start, end,
BLOCK_GROUP_DIRTY, GFP_NOFS);
cache = (struct btrfs_block_group_cache *)(unsigned long)ptr;
ret = write_one_cache_group(trans, root, path, cache);
BUG_ON(ret);
}
btrfs_free_path(path);
return werr;
return 0;
}
static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info,