linux/drivers/block
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
..
aoe block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
drbd block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
mtip32xx Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block 2017-05-01 10:39:57 -07:00
paride pd: don't check blk_execute_rq return value. 2017-04-20 12:16:10 -06:00
rsxx rsxx: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
xen-blkback xen: modify xenstore watch event interface 2017-02-09 11:26:49 -05:00
zram Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block 2017-05-01 10:39:57 -07:00
amiflop.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ataflop.c ataflop: switch from req->errors to req->error_count 2017-04-20 12:16:10 -06:00
brd.c brd: remove discard support 2017-04-08 11:25:38 -06:00
cciss_cmd.h
cciss_scsi.c cciss: Remove kmalloc cast 2017-02-22 11:54:49 -07:00
cciss_scsi.h
cciss.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
cciss.h SCSI misc on 20170220 2017-02-21 11:51:42 -08:00
cryptoloop.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
DAC960.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
DAC960.h
floppy.c floppy: switch from req->errors to req->error_count 2017-04-20 12:16:10 -06:00
Kconfig virtio_blk: Fix English description of VIRTIO_BLK_SCSI 2017-04-24 22:07:10 -06:00
loop.c blk-mq: remove the error argument to blk_mq_complete_request 2017-04-20 12:16:10 -06:00
loop.h loop: zero-fill bio on the submitting cpu 2017-04-20 12:16:10 -06:00
Makefile block: remove the osdblk driver 2017-04-19 09:10:51 -06:00
nbd.c nbd: fix use after free on module unload 2017-04-28 08:04:01 -06:00
null_blk.c blk-mq: remove the error argument to blk_mq_complete_request 2017-04-20 12:16:10 -06:00
pktcdvd.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
ps3disk.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
ps3vram.c block: convert to device_add_disk() 2016-06-27 12:26:08 -07:00
rbd_types.h rbd: RBD_V{1,2}_DATA_FORMAT macros 2017-02-20 12:16:15 +01:00
rbd.c rbd: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
skd_main.c skd: implement trivial scsi ioctls directly 2017-01-31 10:53:03 -07:00
skd_s1120.h skd: fix formatting in skd_s1120.h 2013-11-08 09:10:30 -07:00
smart1,2.h
sunvdc.c sunvdc: Add support for setting physical sector size 2017-02-23 08:24:08 -08:00
swim3.c swim3: remove (commented out) printing of req->errors 2017-04-20 12:16:10 -06:00
swim_asm.S
swim.c swim: stop sharing request queue across multiple gendisks 2017-03-28 15:06:58 -06:00
sx8.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
umem.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
umem.h
virtio_blk.c blk-mq: remove the error argument to blk_mq_complete_request 2017-04-20 12:16:10 -06:00
xen-blkfront.c blk-mq: remove the error argument to blk_mq_complete_request 2017-04-20 12:16:10 -06:00
xsysace.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
z2ram.c block: remove struct request buffer member 2014-04-15 14:03:02 -06:00