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dm persistent data: use DMERR_LIMIT for errors

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Nearly all of persistent-data is in the IO path so throttle error
messages with DMERR_LIMIT to limit the amount logged when
something has gone wrong.

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 a5bd968aeb
commit 89ddeb8cb1
3 changed files with 20 additions and 21 deletions
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11
drivers/md/persistent-data/dm-block-manager.c
View file

@ -429,17 +429,16 @@ static int dm_bm_validate_buffer(struct dm_block_manager *bm,
return 0;
r = v->check(v, (struct dm_block *) buf, dm_bufio_get_block_size(bm->bufio));
if (unlikely(r)) {
DMERR("%s validator check failed for block %llu", v->name,
(unsigned long long) dm_bufio_get_block_number(buf));
DMERR_LIMIT("%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)) {
DMERR("validator mismatch (old=%s vs new=%s) for block %llu",
aux->validator->name, v ? v->name : "NULL",
(unsigned long long)
dm_bufio_get_block_number(buf));
DMERR_LIMIT("validator mismatch (old=%s vs new=%s) for block %llu",
aux->validator->name, v ? v->name : "NULL",
(unsigned long long) dm_bufio_get_block_number(buf));
return -EINVAL;
}
}