Merge tag 'for-5.7/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

- Fix excessive bio splitting that caused performance regressions

- Fix logic bug in DM integrity discard support's integrity tag testing

- Fix DM integrity warning on ppc64le due to missing cast

* tag 'for-5.7/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm integrity: fix logic bug in integrity tag testing
Revert "dm: always call blk_queue_split() in dm_process_bio()"
dm integrity: fix ppc64le warning

drivers/md/dm-integrity.c

···
 			if (likely(is_power_of_2(ic->tag_size))) {
 				if (unlikely(memcmp(dp, tag, to_copy)))
 					if (unlikely(!ic->discard) ||
-					    unlikely(!memchr_inv(dp, DISCARD_FILLER, to_copy))) {
+					    unlikely(memchr_inv(dp, DISCARD_FILLER, to_copy) != NULL)) {
 						goto thorough_test;
 				}
 			} else {
···
 	switch (type) {
 	case STATUSTYPE_INFO:
 		DMEMIT("%llu %llu",
-			atomic64_read(&ic->number_of_mismatches),
+			(unsigned long long)atomic64_read(&ic->number_of_mismatches),
 			ic->provided_data_sectors);
 		if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING))
 			DMEMIT(" %llu", le64_to_cpu(ic->sb->recalc_sector));

drivers/md/dm.c

···
 	 * won't be imposed.
 	 */
 	if (current->bio_list) {
-		blk_queue_split(md->queue, &bio);
-		if (!is_abnormal_io(bio))
+		if (is_abnormal_io(bio))
+			blk_queue_split(md->queue, &bio);
+		else
 			dm_queue_split(md, ti, &bio);
 	}