diff options
| author | Hugh Dickins <hugh@veritas.com> | 2006-12-06 20:41:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:48 -0800 |
| commit | 1650242324a0c19d629a8be0d5a8ecdc174d31f8 (patch) | |
| tree | ede667fcb170d58750794b5b1f7baade4d0ba552 /fs/ext3 | |
| parent | ef5036782e619ab394daaec5c00876fa6b17d7a1 (diff) | |
| download | lwn-1650242324a0c19d629a8be0d5a8ecdc174d31f8.tar.gz lwn-1650242324a0c19d629a8be0d5a8ecdc174d31f8.zip | |
[PATCH] ext3 balloc: fix off-by-one against grp_goal
grp_goal 0 is a genuine goal (unlike -1), so ext3_try_to_allocate_with_rsv
should treat it as such.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ext3')
| -rw-r--r-- | fs/ext3/balloc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index db8ca34d102a..0706a45d3c07 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -1271,7 +1271,7 @@ ext3_try_to_allocate_with_rsv(struct super_block *sb, handle_t *handle, } /* * grp_goal is a group relative block number (if there is a goal) - * 0 < grp_goal < EXT3_BLOCKS_PER_GROUP(sb) + * 0 <= grp_goal < EXT3_BLOCKS_PER_GROUP(sb) * first block is a filesystem wide block number * first block is the block number of the first block in this group */ @@ -1307,7 +1307,7 @@ ext3_try_to_allocate_with_rsv(struct super_block *sb, handle_t *handle, if (!goal_in_my_reservation(&my_rsv->rsv_window, grp_goal, group, sb)) grp_goal = -1; - } else if (grp_goal > 0) { + } else if (grp_goal >= 0) { int curr = my_rsv->rsv_end - (grp_goal + group_first_block) + 1; |