From 1650242324a0c19d629a8be0d5a8ecdc174d31f8 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 6 Dec 2006 20:41:25 -0800 Subject: [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 Signed-off-by: Hugh Dickins Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/balloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/ext3') diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index db8ca34d102..0706a45d3c0 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; -- cgit v1.2.3