Messages in this thread Patch in this message |  | | Subject | [PATCH 3/12] ext3 balloc: fix off-by-one against rsv_end | From | Mingming Cao <> | Date | Tue, 28 Nov 2006 20:14:18 -0800 |
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------------------------------------------------------ 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 ext3
Signed-Off-By: Mingming Cao <cmm@us.ibm.com>
---
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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