linux/drivers/md
Linus Torvalds 694752922b Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe:

 - Add BFQ IO scheduler under the new blk-mq scheduling framework. BFQ
   was initially a fork of CFQ, but subsequently changed to implement
   fairness based on B-WF2Q+, a modified variant of WF2Q. BFQ is meant
   to be used on desktop type single drives, providing good fairness.
   From Paolo.

 - Add Kyber IO scheduler. This is a full multiqueue aware scheduler,
   using a scalable token based algorithm that throttles IO based on
   live completion IO stats, similary to blk-wbt. From Omar.

 - A series from Jan, moving users to separately allocated backing
   devices. This continues the work of separating backing device life
   times, solving various problems with hot removal.

 - A series of updates for lightnvm, mostly from Javier. Includes a
   'pblk' target that exposes an open channel SSD as a physical block
   device.

 - A series of fixes and improvements for nbd from Josef.

 - A series from Omar, removing queue sharing between devices on mostly
   legacy drivers. This helps us clean up other bits, if we know that a
   queue only has a single device backing. This has been overdue for
   more than a decade.

 - Fixes for the blk-stats, and improvements to unify the stats and user
   windows. This both improves blk-wbt, and enables other users to
   register a need to receive IO stats for a device. From Omar.

 - blk-throttle improvements from Shaohua. This provides a scalable
   framework for implementing scalable priotization - particularly for
   blk-mq, but applicable to any type of block device. The interface is
   marked experimental for now.

 - Bucketized IO stats for IO polling from Stephen Bates. This improves
   efficiency of polled workloads in the presence of mixed block size
   IO.

 - A few fixes for opal, from Scott.

 - A few pulls for NVMe, including a lot of fixes for NVMe-over-fabrics.
   From a variety of folks, mostly Sagi and James Smart.

 - A series from Bart, improving our exposed info and capabilities from
   the blk-mq debugfs support.

 - A series from Christoph, cleaning up how handle WRITE_ZEROES.

 - A series from Christoph, cleaning up the block layer handling of how
   we track errors in a request. On top of being a nice cleanup, it also
   shrinks the size of struct request a bit.

 - Removal of mg_disk and hd (sorry Linus) by Christoph. The former was
   never used by platforms, and the latter has outlived it's usefulness.

 - Various little bug fixes and cleanups from a wide variety of folks.

* 'for-4.12/block' of git://git.kernel.dk/linux-block: (329 commits)
  block: hide badblocks attribute by default
  blk-mq: unify hctx delay_work and run_work
  block: add kblock_mod_delayed_work_on()
  blk-mq: unify hctx delayed_run_work and run_work
  nbd: fix use after free on module unload
  MAINTAINERS: bfq: Add Paolo as maintainer for the BFQ I/O scheduler
  blk-mq-sched: alloate reserved tags out of normal pool
  mtip32xx: use runtime tag to initialize command header
  scsi: Implement blk_mq_ops.show_rq()
  blk-mq: Add blk_mq_ops.show_rq()
  blk-mq: Show operation, cmd_flags and rq_flags names
  blk-mq: Make blk_flags_show() callers append a newline character
  blk-mq: Move the "state" debugfs attribute one level down
  blk-mq: Unregister debugfs attributes earlier
  blk-mq: Only unregister hctxs for which registration succeeded
  blk-mq-debugfs: Rename functions for registering and unregistering the mq directory
  blk-mq: Let blk_mq_debugfs_register() look up the queue name
  blk-mq: Register <dev>/queue/mq after having registered <dev>/queue
  ide-pm: always pass 0 error to ide_complete_rq in ide_do_devset
  ide-pm: always pass 0 error to __blk_end_request_all
  ..
2017-05-01 10:39:57 -07:00
..
bcache drivers/md/bcache/util.h: remove duplicate inclusion of blkdev.h 2017-03-09 17:01:10 -08:00
persistent-data sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> 2017-03-02 08:42:40 +01:00
bitmap.c md: separate flags for superblock changes 2016-12-08 22:01:47 -08:00
bitmap.h md-cluster: sync bitmap when node received RESYNCING msg 2016-05-04 12:39:35 -07:00
dm-bio-prison.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm-bio-prison.h dm bio prison: add dm_cell_promote_or_release() 2015-05-29 14:19:06 -04:00
dm-bio-record.h
dm-bufio.c sched/headers: Prepare to move the memalloc_noio_*() APIs to <linux/sched/mm.h> 2017-03-02 08:42:33 +01:00
dm-bufio.h
dm-builtin.c dm: move request-based code out to dm-rq.[hc] 2016-06-10 15:15:44 -04:00
dm-cache-block-types.h linux: drop __bitwise__ everywhere 2016-12-16 00:13:41 +02:00
dm-cache-metadata.c dm cache metadata: fix metadata2 format's blocks_are_clean_separate_dirty 2017-03-20 16:00:49 -04:00
dm-cache-metadata.h dm cache metadata: add "metadata2" feature 2017-02-16 13:12:47 -05:00
dm-cache-policy-cleaner.c dm cache: speed up writing of the hint array 2016-09-22 11:15:02 -04:00
dm-cache-policy-internal.h dm cache: speed up writing of the hint array 2016-09-22 11:15:02 -04:00
dm-cache-policy-smq.c dm cache policy smq: use hash_32() instead of hash_32_generic() 2016-12-08 19:42:37 -05:00
dm-cache-policy.c
dm-cache-policy.h dm cache: speed up writing of the hint array 2016-09-22 11:15:02 -04:00
dm-cache-target.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
dm-core.h dm: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
dm-crypt.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
dm-delay.c dm: rename target's per_bio_data_size to per_io_data_size 2016-02-22 22:34:37 -05:00
dm-era-target.c block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
dm-exception-store.c - Revert a dm-multipath change that caused a regression for unprivledged 2015-11-04 21:19:53 -08:00
dm-exception-store.h dm snapshot: fix hung bios when copy error occurs 2016-01-08 20:03:05 -05:00
dm-flakey.c dm flakey: introduce "error_writes" feature 2016-12-13 15:01:31 -05:00
dm-io.c dm: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
dm-ioctl.c sched/headers: Prepare to move the memalloc_noio_*() APIs to <linux/sched/mm.h> 2017-03-02 08:42:33 +01:00
dm-kcopyd.c dm kcopyd: switch to use REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
dm-linear.c dm: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
dm-log-userspace-base.c dm: drop NULL test before kmem_cache_destroy() and mempool_destroy() 2015-10-31 19:06:00 -04:00
dm-log-userspace-transfer.c dm log userspace transfer: match wait_for_completion_timeout return type 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.h
dm-log-writes.c Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block 2016-10-07 14:42:05 -07:00
dm-log.c block,fs: use REQ_* flags directly 2016-11-01 09:43:26 -06:00
dm-mpath.c dm mpath: don't check for req->errors 2017-04-20 12:16:10 -06:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h dm path selector: remove 'repeat_count' return from .select_path hook 2016-02-22 22:34:42 -05:00
dm-queue-length.c dm path selector: remove 'repeat_count' return from .select_path hook 2016-02-22 22:34:42 -05:00
dm-raid1.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
dm-raid.c Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block 2017-05-01 10:39:57 -07:00
dm-region-hash.c block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
dm-round-robin.c dm round robin: revert "use percpu 'repeat_count' and 'current_path'" 2017-02-17 00:54:09 -05:00
dm-rq.c blk-mq: remove the error argument to blk_mq_complete_request 2017-04-20 12:16:10 -06:00
dm-rq.h dm: always defer request allocation to the owner of the request_queue 2017-01-27 15:08:35 -07:00
dm-service-time.c dm path selector: remove 'repeat_count' return from .select_path hook 2016-02-22 22:34:42 -05:00
dm-snap-persistent.c block,fs: use REQ_* flags directly 2016-11-01 09:43:26 -06:00
dm-snap-transient.c dm snapshot: fix hung bios when copy error occurs 2016-01-08 20:03:05 -05:00
dm-snap.c block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
dm-stats.c dm stats: fix a leaked s->histogram_boundaries array 2017-02-16 14:17:07 -05:00
dm-stats.h dm stats: support precise timestamps 2015-06-17 12:40:40 -04:00
dm-stripe.c dm: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
dm-switch.c dm switch: simplify conditional in alloc_region_table() 2015-10-31 19:06:06 -04:00
dm-sysfs.c dm: move request-based code out to dm-rq.[hc] 2016-06-10 15:15:44 -04:00
dm-table.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
dm-target.c dm: always defer request allocation to the owner of the request_queue 2017-01-27 15:08:35 -07:00
dm-thin-metadata.c dm thin: fix a race condition between discarding and provisioning a block 2016-07-20 12:43:35 -04:00
dm-thin-metadata.h dm thin: fix a race condition between discarding and provisioning a block 2016-07-20 12:43:35 -04:00
dm-thin.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
dm-uevent.c
dm-uevent.h
dm-verity-fec.c dm verity fec: fix bufio leaks 2017-03-31 15:44:25 -04:00
dm-verity-fec.h dm verity fec: limit error correction recursion 2017-03-16 09:37:31 -04:00
dm-verity-target.c dm verity: fix incorrect error message 2016-11-21 09:52:01 -05:00
dm-verity.h dm verity: add ignore_zero_blocks feature 2015-12-10 10:39:03 -05:00
dm-zero.c block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
dm.c dm: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
dm.h dm: always defer request allocation to the owner of the request_queue 2017-01-27 15:08:35 -07:00
faulty.c md: fast clone bio in bio_clone_mddev() 2017-02-15 11:24:54 -08:00
Kconfig dm block manager: make block locking optional 2016-11-14 15:17:47 -05:00
linear.c md: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
linear.h md linear: fix a race between linear_add() and linear_congested() 2017-02-13 09:17:50 -08:00
Makefile dm: move request-based code out to dm-rq.[hc] 2016-06-10 15:15:44 -04:00
md-cluster.c md-cluster: remove useless memset from gather_all_resync_info 2017-03-09 09:02:06 -08:00
md-cluster.h md-cluster: gather resync infos and enable recv_thread after bitmap is ready 2016-05-09 09:24:03 -07:00
md.c md: fix incorrect use of lexx_to_cpu in does_sb_need_changing 2017-03-10 12:54:38 -08:00
md.h md: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
multipath.c md: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
multipath.h
raid0.c md: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
raid0.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
raid1.c md: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
raid1.h RAID1: avoid unnecessary spin locks in I/O barrier code 2017-02-19 22:04:25 -08:00
raid5-cache.c md/raid5-cache: exclude reclaiming stripes in reclaim check 2017-02-13 09:20:05 -08:00
raid5.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
raid5.h md/raid5-cache: exclude reclaiming stripes in reclaim check 2017-02-13 09:20:05 -08:00
raid10.c md: support REQ_OP_WRITE_ZEROES 2017-04-08 11:25:38 -06:00
raid10.h md/raid10: add failfast handling for reads. 2016-11-22 09:14:28 -08:00