Commit b7e326f7 authored Jul 31, 2017 by Hyunchul Lee Committed by Mike Snitzer Sep 11, 2017

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>

parent 228bb5b2

drivers/md/dm-integrity.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -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);
		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);