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dm block manager: reinstate message when validator fails

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Reinstate a useful error message when the block manager buffer validator fails.
This was mistakenly eliminated when the block manager was converted to use
dm-bufio.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mike Snitzer 2012-12-21 20:23:34 +00:00 committed by Alasdair G Kergon
parent 3a0f9aaee0
commit a5bd968aeb
1 changed files with 4 additions and 1 deletions
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5
drivers/md/persistent-data/dm-block-manager.c
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@ -428,8 +428,11 @@ static int dm_bm_validate_buffer(struct dm_block_manager *bm,
if (!v)
return 0;
r = v->check(v, (struct dm_block *) buf, dm_bufio_get_block_size(bm->bufio));
if (unlikely(r))
if (unlikely(r)) {
DMERR("%s validator check failed for block %llu", v->name,
(unsigned long long) dm_bufio_get_block_number(buf));
return r;
}
aux->validator = v;
} else {
if (unlikely(aux->validator != v)) {