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Date: Tue, 28 Nov 2006 20:15:15 -0800 From: Mingming Cao <cmm@...ibm.com> To: Andrew Morton <akpm@...l.org>, Hugh Dickins <hugh@...itas.com> Cc: Mel Gorman <mel@...net.ie>, "Martin J. Bligh" <mbligh@...igh.org>, linux-kernel@...r.kernel.org, "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org> Subject: [PATCH 9/12] ext4 balloc: fix off-by-one against rsv_end ------------------------------------------------------ Subject: ext2 balloc: fix off-by-one against rsv_end From: Hugh Dickins <hugh@...itas.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@...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@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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