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authorLinus Torvalds <torvalds@linux-foundation.org>2020-04-04 00:44:48 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-04 00:44:48 +0300
commitde3c913c6e9d8bbf8b2d3caaed55ff3e40a62e56 (patch)
tree70db3c29fef1f565fa9fb904c695b043694f5b32 /drivers/md
parent86f26a77cb0cf532a92be18d2c065f5158e1a545 (diff)
parent8267d8fb4819afa76b2a54dca48efdda6f0b1910 (diff)
downloadlinux-de3c913c6e9d8bbf8b2d3caaed55ff3e40a62e56.tar.xz
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
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-integrity.c4
-rw-r--r--drivers/md/dm.c5
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index b989d109d55d..4094c47eca7f 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -1333,7 +1333,7 @@ static int dm_integrity_rw_tag(struct dm_integrity_c *ic, unsigned char *tag, se
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 {
@@ -3069,7 +3069,7 @@ static void dm_integrity_status(struct dm_target *ti, status_type_t type,
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));
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 753302e83910..21c0207e3207 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1740,8 +1740,9 @@ static blk_qc_t dm_process_bio(struct mapped_device *md,
* 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);
}