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dm integrity: do not check integrity for failed read operations 

Even though read operations fail, dm_integrity_map_continue() calls
integrity_metadata() to check integrity.  In this case, just complete
these.

This also makes it so read I/O errors do not generate integrity warnings
in the kernel log.

Cc: stable@vger.kernel.org
Signed-off-by: Hyunchul Lee <cheol.lee@lge.com>
Acked-by: Milan Broz <gmazyland@gmail.com>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Hyunchul Lee 2017-07-31 16:22:20 +09:00 committed by Mike Snitzer
parent 228bb5b260
commit b7e326f7b7
1 changed files with 5 additions and 1 deletions
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6
drivers/md/dm-integrity.c
View File

@ -1702,7 +1702,11 @@ static void dm_integrity_map_continue(struct dm_integrity_io *dio, bool from_map
if (need_sync_io) {
wait_for_completion_io(&read_comp);
integrity_metadata(&dio->work);
if (likely(!bio->bi_status))
integrity_metadata(&dio->work);
else
dec_in_flight(dio);
} else {
INIT_WORK(&dio->work, integrity_metadata);
queue_work(ic->metadata_wq, &dio->work);