Mike Snitzer dbaf971c9c dm mpath: remove harmful bio-based optimization ... Removes the branching for edge-case where no SCSI device handler exists. The __map_bio_fast() method was far too limited, by only selecting a new pathgroup or path IFF there was a path failure, fix this be eliminating it in favor of __map_bio(). __map_bio()'s extra SCSI device handler specific MPATHF_PG_INIT_REQUIRED test is not in the fast path anyway. This change restores full path selector functionality for bio-based configurations that don't haave a SCSI device handler. But it should be noted that the path selectors do have an impact on performance for certain networks that are extremely fast (and don't require frequent switching). Fixes: 8d47e65948 ("dm mpath: remove unnecessary NVMe branching in favor of scsi_dh checks") Cc: stable@vger.kernel.org Reported-by: Drew Hastings <dhastings@crucialwebhost.com> Suggested-by: Martin Wilck <mwilck@suse.de> Signed-off-by: Mike Snitzer <snitzer@redhat.com>		2019-11-26 10:22:46 -05:00
..
bcache
persistent-data
dm-bio-prison-v1.c	dm bio prison: replace spin_lock_irqsave with spin_lock_irq	2019-11-05 14:53:03 -05:00
dm-bio-prison-v1.h
dm-bio-prison-v2.c	dm bio prison: replace spin_lock_irqsave with spin_lock_irq	2019-11-05 14:53:03 -05:00
dm-bio-prison-v2.h
dm-bio-record.h
dm-bufio.c
dm-builtin.c
dm-cache-background-tracker.c
dm-cache-background-tracker.h
dm-cache-block-types.h
dm-cache-metadata.c
dm-cache-metadata.h
dm-cache-policy-internal.h
dm-cache-policy-smq.c
dm-cache-policy.c
dm-cache-policy.h
dm-cache-target.c	dm cache: replace spin_lock_irqsave with spin_lock_irq	2019-11-05 14:53:04 -05:00
dm-clone-metadata.c	dm clone: replace spin_lock_irqsave with spin_lock_irq	2019-11-05 14:35:42 -05:00
dm-clone-metadata.h	dm clone: replace spin_lock_irqsave with spin_lock_irq	2019-11-05 14:35:42 -05:00
dm-clone-target.c	dm clone: add bucket_lock_irq/bucket_unlock_irq helpers	2019-11-05 14:36:34 -05:00
dm-core.h
dm-crypt.c	Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt workqueues"	2019-11-20 17:27:39 -05:00
dm-delay.c
dm-dust.c	dm dust: add limited write failure mode	2019-11-05 15:25:34 -05:00
dm-era-target.c
dm-exception-store.c
dm-exception-store.h
dm-flakey.c
dm-init.c
dm-integrity.c	dm integrity: fix excessive alignment of metadata runs	2019-11-15 14:49:16 -05:00
dm-io.c
dm-ioctl.c
dm-kcopyd.c
dm-linear.c
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c
dm-log.c
dm-mpath.c	dm mpath: remove harmful bio-based optimization	2019-11-26 10:22:46 -05:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c
dm-raid.c	dm raid: Remove unnecessary negation of a shift in raid10_format_to_md_layout	2019-11-07 11:59:38 -05:00
dm-region-hash.c
dm-round-robin.c
dm-rq.c
dm-rq.h
dm-service-time.c
dm-snap-persistent.c
dm-snap-transient.c
dm-snap.c	dm snapshot: rework COW throttling to fix deadlock	2019-10-10 09:46:05 -04:00
dm-stats.c
dm-stats.h
dm-stripe.c	dm stripe: use struct_size() in kmalloc()	2019-11-05 14:09:59 -05:00
dm-switch.c
dm-sysfs.c
dm-table.c	dm table: do not allow request-based DM to stack on partitions	2019-11-05 11:22:52 -05:00
dm-target.c
dm-thin-metadata.c
dm-thin-metadata.h
dm-thin.c	dm thin: wakeup worker only when deferred bios exist	2019-11-18 10:03:12 -05:00
dm-uevent.c
dm-uevent.h
dm-unstripe.c
dm-verity-fec.c
dm-verity-fec.h
dm-verity-target.c
dm-verity-verify-sig.c
dm-verity-verify-sig.h
dm-verity.h
dm-writecache.c	dm writecache: handle REQ_FUA	2019-11-05 14:21:40 -05:00
dm-zero.c
dm-zoned-metadata.c	dm zoned: reduce overhead of backing device checks	2019-11-07 10:08:36 -05:00
dm-zoned-reclaim.c	dm zoned: reduce overhead of backing device checks	2019-11-07 10:08:36 -05:00
dm-zoned-target.c	dm zoned: reduce overhead of backing device checks	2019-11-07 10:08:36 -05:00
dm-zoned.h	dm zoned: reduce overhead of backing device checks	2019-11-07 10:08:36 -05:00
dm.c
dm.h
Kconfig	dm: Fix Kconfig indentation	2019-11-20 10:35:31 -05:00
Makefile
md-bitmap.c
md-bitmap.h
md-cluster.c
md-cluster.h
md-faulty.c
md-linear.c
md-linear.h
md-multipath.c
md-multipath.h
md.c
md.h
raid0.c	md/raid0: fix warning message for parameter default_layout	2019-10-16 09:43:02 -07:00
raid0.h
raid1-10.c
raid1.c
raid1.h
raid5-cache.c
raid5-log.h
raid5-ppl.c
raid5.c
raid5.h
raid10.c
raid10.h