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| author | Hugh Dickins <hugh@veritas.com> | 2006-12-06 20:39:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:42 -0800 |
| commit | e7dc95db2695dc92b223cdc49227ac57e63406d2 (patch) | |
| tree | a988c2c6b0c8b3c0bf357ed711b57c0ba1045aa1 /fs/ext4 | |
| parent | cd16c8f72aaaf2af06969d1441051b90010f7041 (diff) | |
| download | linux-e7dc95db2695dc92b223cdc49227ac57e63406d2.tar.gz linux-e7dc95db2695dc92b223cdc49227ac57e63406d2.tar.bz2 linux-e7dc95db2695dc92b223cdc49227ac57e63406d2.zip | |
[PATCH] ext4 balloc: fix off-by-one against grp_goal
grp_goal 0 is a genuine goal (unlike -1), so ext4_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/ext4')
| -rw-r--r-- | fs/ext4/balloc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index af3acf3c37b6..2bcca5261eeb 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -1288,7 +1288,7 @@ ext4_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 < EXT4_BLOCKS_PER_GROUP(sb) + * 0 <= grp_goal < EXT4_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 */ @@ -1324,7 +1324,7 @@ ext4_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; |