------------------------------------------------------ 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 _ - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
