From a5bd968aeb87af4a3a96ecdd78912832997e8a9d Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 21 Dec 2012 20:23:34 +0000 Subject: [PATCH] dm block manager: reinstate message when validator fails 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 Signed-off-by: Alasdair G Kergon --- drivers/md/persistent-data/dm-block-manager.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/md/persistent-data/dm-block-manager.c b/drivers/md/persistent-data/dm-block-manager.c index 5ba277768d99..47b683e67a7c 100644 --- a/drivers/md/persistent-data/dm-block-manager.c +++ b/drivers/md/persistent-data/dm-block-manager.c @@ -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)) { -- 2.30.2