[PATCH 9/12] ext4 balloc: fix off-by-one against rsv_end

[Mingming Cao <cmm@us.ibm.com>]

------------------------------------------------------
Subject: ext2 balloc: fix off-by-one against rsv_end
From: Hugh Dickins <hugh@veritas.com>

rsv_end is the last block within the reservation, so alloc_new_reservation
should accept start_block == rsv_end as success.
------------------------------------------------------
Sync up  a ext2 reservation fix in ext4
Signed-Off-By: Mingming Cao <cmm@us.ibm.com>


---

 linux-2.6.19-rc5-cmm/fs/ext4/balloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN fs/ext4/balloc.c~ext4-balloc-fix-off-by-one-against-rsv_end fs/ext4/balloc.c
--- linux-2.6.19-rc5/fs/ext4/balloc.c~ext4-balloc-fix-off-by-one-against-rsv_end	2006-11-28 19:37:15.000000000 -0800
+++ linux-2.6.19-rc5-cmm/fs/ext4/balloc.c	2006-11-28 19:37:15.000000000 -0800
@@ -1165,7 +1165,7 @@ retry:
 	 * check if the first free block is within the
 	 * free space we just reserved
 	 */
-	if (start_block >= my_rsv->rsv_start && start_block < my_rsv->rsv_end)
+	if (start_block >= my_rsv->rsv_start && start_block <= my_rsv->rsv_end)
 		return 0;		/* success */
 	/*
 	 * if the first free bit we found is out of the reservable space

_


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/