[PATCH] ext3 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>
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@ -1148,7 +1148,7 @@ retry:
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* check if the first free block is within the
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* free space we just reserved
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*/
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if (start_block >= my_rsv->rsv_start && start_block < my_rsv->rsv_end)
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if (start_block >= my_rsv->rsv_start && start_block <= my_rsv->rsv_end)
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return 0; /* success */
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/*
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* if the first free bit we found is out of the reservable space
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