[PATCH 3/12] ext3 balloc: fix off-by-one against rsv_end

[Mingming Cao]

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

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 ext3

Signed-Off-By: Mingming Cao <cmm@xxxxxxxxxx>


---

 linux-2.6.19-rc5-cmm/fs/ext3/balloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN fs/ext3/balloc.c~ext3-balloc-fix-off-by-one-against-rsv_end fs/ext3/balloc.c
--- linux-2.6.19-rc5/fs/ext3/balloc.c~ext3-balloc-fix-off-by-one-against-rsv_end	2006-11-28 19:36:58.000000000 -0800
+++ linux-2.6.19-rc5-cmm/fs/ext3/balloc.c	2006-11-28 19:36:58.000000000 -0800
@@ -1148,7 +1148,7 @@ 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

_


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