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

rsv_end is the last block within the reservation, so alloc_new_reservation
should accept start_block == rsv_end as success.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hugh Dickins 2006-12-06 20:39:20 -08:00 committed by Linus Torvalds
parent e7dc95db26
commit b2f2c76d17
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/balloc.c
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@ -1165,7 +1165,7 @@ static int alloc_new_reservation(struct ext4_reserve_window_node *my_rsv,
* 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