From patchwork Sun Jul 31 15:03:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jens Axboe X-Patchwork-Id: 12933115 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73A89C00140 for ; Sun, 31 Jul 2022 15:03:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237285AbiGaPDu (ORCPT ); Sun, 31 Jul 2022 11:03:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236703AbiGaPDr (ORCPT ); Sun, 31 Jul 2022 11:03:47 -0400 Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 65BB3DEE3 for ; Sun, 31 Jul 2022 08:03:45 -0700 (PDT) Received: by mail-pg1-x535.google.com with SMTP id bh13so7614022pgb.4 for ; Sun, 31 Jul 2022 08:03:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=message-id:date:mime-version:user-agent:from:subject:to:cc :content-language:content-transfer-encoding; bh=M+CHV26VHg2xl1f7Md0yb49iEnDIed1f5mqDuq1FcZ4=; b=APRUx+PSU1G2ZJ1ocQhhalqwESQnVPNYWCD3/XDTqnWw2XTpiMHxAqZAnFxCATBjen UyNuFRdI2yD94cIgReB6dXhaoqfCIZpOBdM9SPQ5ivTGXIyNR4W9+6cdiVk6pS+H+DC9 7bAJFlmYCMsR14ZbdwxvsDPOo6j1lBhIm1JKsryED6NAZVVcDj9ZVTuGQCIupqIcSS/x 2T8UOijFupO5k3ePPnJzl/q2nNlsHcQ0bUUcBmMCI9tjneBmmvvL47/5WWea1wkinjx3 ACU5YCU14y5McqvQOF1RnnqtCe//smnwPB5q8BLXknSMzW32VT7Xr1LOCX2nOQX81iA9 ewug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:from :subject:to:cc:content-language:content-transfer-encoding; bh=M+CHV26VHg2xl1f7Md0yb49iEnDIed1f5mqDuq1FcZ4=; b=BfmE6q4aYJ5/BHXHe1OF4K471BrFUSvzuMYO396ZRePfKpq1s9+gONBJHOyUdEQCfw oxlXutkwmOyBReDNpUZM5jUubFGviAFkorL2yWWsNy9No+qv3mzfLg9HCsJ8sEA3BLOu prU17CUGYkOq3Za0eaCbMI8W1OxqpQo/lKQYimnUKChabiuwzY3bHDNVjG9kaEyPSPhb USjeEi9AVkECG5/WcP+jvaCgL4jnPqdyQvsPB1SjBBdKsmCb0G9xJztQZJZEunyQsaKc tVwv2bTKXGPtRKEj5KzdD9aN5qbj+O/Q7l5op9UFSrnK5FUVLmDFbV6mFlrQeYvdOR3F jLLg== X-Gm-Message-State: AJIora/nXN5pGDd5eufmEG2IYBvFDEynYHa/PvT/PBdb9Maf4d9W95iD 4ggNGlxPudOoppwy3IIsPyynZjh9TxTDIw== X-Google-Smtp-Source: AGRyM1vh2xJB4D6dLdKYZIpE30hOluoynuE6XXmVaLqXFSLo7SgDoFRnM8YKZY4Hw0UpFkgTmoQ06g== X-Received: by 2002:a63:1f58:0:b0:41a:27e8:d669 with SMTP id q24-20020a631f58000000b0041a27e8d669mr10228030pgm.74.1659279824604; Sun, 31 Jul 2022 08:03:44 -0700 (PDT) Received: from [192.168.1.100] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id b6-20020a17090a6e0600b001f31d6fe0f3sm7420090pjk.57.2022.07.31.08.03.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 31 Jul 2022 08:03:44 -0700 (PDT) Message-ID: <83a24590-fe65-4b8c-9069-45ad8290a451@kernel.dk> Date: Sun, 31 Jul 2022 09:03:43 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 From: Jens Axboe Subject: [GIT PULL] Block changes for 5.20-rc1 To: Linus Torvalds Cc: "linux-block@vger.kernel.org" Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi Linus, This pull request contains the core block changes queued up for 5.20. In detail: - Series improving the type checking of request flags (Bart) - Ensure queue mapping for a single queues always picks the right queue (Bart) - Series sanitizing the io priority handling (Jan) - rq-qos race fix (Jinke) - Reserved tags handling improvements (John) - Separate memory alignment from file/disk offset aligment for O_DIRECT (Keith) - Add new ublk driver, userspace block driver using io_uring for communication with the userspace backend (Ming) - Use try_cmpxchg() to cleanup the code in various spots (Uros) - Series finally removing bdevname() (Christoph) - Series cleaning up the zoned device handling (Christoph) - Series cleaning up the independent access range support (Christoph) - Series cleaning up and improving the block sysfs handling (Christoph) - Series cleaning up and improving teardown of block devices. This turns the usual two step process into something that is simpler to implement and handle in block drivers (Christoph) - Series cleaning up the chunk size handling (Christoph) - Misc cleanups and fixes (Bart, Bo, Dan, GuoYong, Jason, Keith, Liu, Ming, Sebastian, Yang, Ying) Please pull! The following changes since commit 03c765b0e3b4cb5063276b086c76f7a612856a9a: Linux 5.19-rc4 (2022-06-26 14:22:10 -0700) are available in the Git repository at: git://git.kernel.dk/linux-block.git tags/for-5.20/block-2022-07-29 for you to fetch changes up to 8d9fdb6011b4d413271eba3a62e10f89efecc419: ublk_drv: fix double shift bug (2022-07-26 12:30:07 -0600) ---------------------------------------------------------------- for-5.20/block-2022-07-29 ---------------------------------------------------------------- Bart Van Assche (70): blk-iocost: Simplify ioc_rqos_done() block: Rename a blk_mq_map_queue() argument block: Make blk_mq_get_sq_hctx() select the proper hardware queue type block: bfq: Remove an unused function definition block: bfq: Fix kernel-doc headers treewide: Rename enum req_opf into enum req_op block: Use enum req_op where appropriate block: Change the type of the last .rw_page() argument block: Change the type of req_op() and bio_op() into enum req_op block: Introduce the type blk_opf_t block: Use the new blk_opf_t type block/bfq: Use the new blk_opf_t type block/mq-deadline: Use the new blk_opf_t type block/kyber: Use the new blk_opf_t type blktrace: Trace remapped requests correctly blktrace: Use the new blk_opf_t type block/brd: Use the enum req_op type block/drbd: Use the enum req_op and blk_opf_t types block/drbd: Combine two drbd_submit_peer_request() arguments block/floppy: Fix a sparse warning block/rnbd: Use blk_opf_t where appropriate xen-blkback: Use the enum req_op and blk_opf_t types block/zram: Use enum req_op where appropriate nvdimm-btt: Use the enum req_op type um: Use enum req_op where appropriate dm/core: Reduce the size of struct dm_io_request dm/core: Rename kcopyd_job.rw into kcopyd.op dm/core: Combine request operation type and flags dm/ebs: Change 'int rw' into 'enum req_op op' dm/dm-flakey: Use the new blk_opf_t type dm/dm-integrity: Combine request operation and flags dm mirror log: Use the new blk_opf_t type dm-snap: Combine request operation type and flags dm/zone: Use the enum req_op type dm/dm-zoned: Use the enum req_op type md/core: Combine two sync_page_io() arguments md/bcache: Combine two uuid_io() arguments md/bcache: Combine two prio_io() arguments md/raid1: Use the new blk_opf_t type md/raid10: Use the new blk_opf_t type md/raid5: Use the enum req_op and blk_opf_t types nvme/host: Use the enum req_op and blk_opf_t types nvme/target: Use the new blk_opf_t type scsi/core: Improve static type checking scsi/core: Change the return type of scsi_noretry_cmd() into bool scsi/core: Use the new blk_opf_t type scsi/device_handlers: Use the new blk_opf_t type scsi/ufs: Rename a 'dir' argument into 'op' scsi/target: Use the new blk_opf_t type mm: Use the new blk_opf_t type fs/buffer: Use the new blk_opf_t type fs/buffer: Combine two submit_bh() and ll_rw_block() arguments fs/direct-io: Reduce the size of struct dio fs/mpage: Use the new blk_opf_t type fs/btrfs: Use the enum req_op and blk_opf_t types fs/ext4: Use the new blk_opf_t type fs/f2fs: Use the enum req_op and blk_opf_t types fs/gfs2: Use the enum req_op and blk_opf_t types fs/hfsplus: Use the enum req_op and blk_opf_t types fs/iomap: Use the new blk_opf_t type fs/jbd2: Fix the documentation of the jbd2_write_superblock() callers fs/nfs: Use enum req_op where appropriate fs/nilfs2: Use the enum req_op and blk_opf_t types fs/ntfs3: Use enum req_op where appropriate fs/ocfs2: Use the enum req_op and blk_opf_t types PM: Use the enum req_op and blk_opf_t types fs/xfs: Use the enum req_op and blk_opf_t types fs/zonefs: Use the enum req_op type for tracing request operations fs/buffer: Fix the ll_rw_block() kernel-doc header blktrace: Fix the blk_fill_rwbs() kernel-doc header Bo Liu (1): block: Directly use ida_alloc()/free() Christoph Hellwig (58): block: factor out a chunk_size_left helper dm: open code blk_max_size_offset in max_io_len block: open code blk_max_size_offset in blk_rq_get_max_sectors block: cleanup variable naming in get_max_io_size block: fold blk_max_size_offset into get_max_io_size block: move blk_queue_get_max_sectors to blk.h mtip32xx: remove the device_status debugfs file mtip32xx: fix device removal block: remove QUEUE_FLAG_DEAD block: stop setting the nomerges flags in blk_cleanup_queue block: simplify disk shutdown block: remove blk_cleanup_disk block: simplify blktrace sysfs attribute creation block: remove a superflous queue kobject reference block: use default groups to register the queue attributes block: remove the extra gendisk reference in __blk_mq_register_dev blk-mq: rename blk_mq_sysfs_{,un}register blk-mq: cleanup disk sysfs registration block: move ->ia_ranges from the request_queue to the gendisk block: simplify disk_set_independent_access_ranges block: remove a superflous ifdef in blkdev.h block: call blk_queue_free_zone_bitmaps from disk_release block: use bdev_is_zoned instead of open coding it block: simplify blk_mq_plug block: simplify blk_check_zone_append block: pass a gendisk to blk_queue_set_zoned block: pass a gendisk to blk_queue_clear_zone_settings block: pass a gendisk to blk_queue_free_zone_bitmaps block: remove queue_max_open_zones and queue_max_active_zones block: pass a gendisk to blk_queue_max_open_zones and blk_queue_max_active_zones block: replace blkdev_nr_zones with bdev_nr_zones block: use bdev based helpers in blkdev_zone_mgmt{,all} nvmet:: use bdev based helpers in nvmet_bdev_zone_mgmt_emulate_all dm-zoned: cleanup dmz_fixup_devices block: remove blk_queue_zone_sectors block: move zone related fields to struct gendisk block: stop using bdevname in bdev_write_inode block: stop using bdevname in __blkdev_issue_discard drbd: stop using bdevname in drbd_report_io_error pktcdvd: stop using bdevname in pkt_seq_show pktcdvd: stop using bdevname in pkt_new_dev rnbd-srv: remove the name field from struct rnbd_dev ocfs2/cluster: remove the hr_dev_name field from struct o2hb_region ext4: only initialize mmp_bdevname once block: remove bdevname ublk: remove UBLK_IO_F_INTEGRITY ublk: add a MAINTAINERS entry ublk: remove UBLK_IO_F_PREFLUSH ublk: remove the empty open and release block device operations ublk: simplify ublk_ch_open and ublk_ch_release ublk: cleanup ublk_ctrl_uring_cmd ublk: fold __ublk_create_dev into ublk_ctrl_add_dev ublk: rewrite ublk_ctrl_get_queue_affinity to not rely on hctx->cpumask ublk: defer disk allocation blk-mq: fix error handling in __blk_mq_alloc_disk block: call blk_mq_exit_queue from disk_release for never added disks block: remove __blk_get_queue ublk_drv: fix error handling of ublk_add_dev Dan Carpenter (2): ublk_drv: fix an IS_ERR() vs NULL check ublk_drv: fix double shift bug GuoYong Zheng (1): bfq: Remove useless code in bfq_lookup_next_entity Jan Kara (9): block: fix default IO priority handling again block: Return effective IO priority from get_current_ioprio() block: Generalize get_current_ioprio() for any task block: Make ioprio_best() static block: Fix handling of tasks without ioprio in ioprio_get(2) blk-ioprio: Remove unneeded field blk-ioprio: Convert from rqos policy to direct call block: Initialize bio priority earlier block: Always initialize bio IO priority on submit Jason Yan (2): blk-cgroup: factor out blkcg_iostat_update() blk-cgroup: factor out blkcg_free_all_cpd() Jinke Han (1): block: don't allow the same type rq_qos add more than once John Garry (6): scsi: core: Remove reserved request time-out handling blk-mq: Add a flag for reserved requests blk-mq: Drop blk_mq_ops.timeout 'reserved' arg scsi: fnic: Drop reserved request handling blk-mq: Drop 'reserved' arg of busy_tag_iter_fn blk-mq: Drop local variable for reserved tag Keith Busch (11): block: fix infinite loop for invalid zone append block/bio: remove duplicate append pages code block: export dma_alignment attribute block: introduce bdev_dma_alignment helper block: add a helper function for dio alignment block/merge: count bytes instead of sectors block/bounce: count bytes instead of sectors iov: introduce iov_iter_aligned block: introduce bdev_iter_is_aligned helper block: relax direct io memory alignment iomap: add support for dma aligned direct-io Liu Song (1): blk-mq: blk_mq_tag_busy is no need to return a value Ming Lei (8): blk-mq: don't create hctx debugfs dir until q->debugfs_dir is created ublk_drv: add io_uring based userspace block driver ublk_drv: support to complete io command via task_work_add ublk_drv: fix request queue leak ublk_drv: fix build warning with -Wmaybe-uninitialized and one sparse warning mmc: fix disk/queue leak in case of adding disk failure ublk_drv: fix lockdep warning ublk_drv: make sure that correct flags(features) returned to userspace Sebastian Andrzej Siewior (1): blk-mq: Don't disable preemption around __blk_mq_run_hw_queue(). Uros Bizjak (4): block/rq_qos: Use atomic_try_cmpxchg in atomic_inc_below block: Use try_cmpxchg in update_io_ticks blk-iolatency: Use atomic{,64}_try_cmpxchg blk-cgroup: Use atomic{,64}_try_cmpxchg Yang Li (1): ublk_drv: remove unneeded semicolon Yang Yingliang (1): ublk_drv: fix missing error return code in ublk_add_dev() Ying Sun (1): block: remove "select BLK_RQ_IO_DATA_LEN" from BLK_CGROUP_IOCOST dependency Documentation/ABI/stable/sysfs-block | 9 + Documentation/scsi/scsi_eh.rst | 3 +- Documentation/scsi/scsi_mid_low_api.rst | 2 +- MAINTAINERS | 7 + arch/m68k/emu/nfblock.c | 4 +- arch/um/drivers/ubd_kern.c | 8 +- arch/xtensa/platforms/iss/simdisk.c | 4 +- block/Kconfig | 1 - block/bdev.c | 10 +- block/bfq-cgroup.c | 34 +- block/bfq-iosched.c | 16 +- block/bfq-iosched.h | 8 +- block/bfq-wf2q.c | 5 +- block/bio.c | 126 +-- block/blk-cgroup-rwstat.h | 8 +- block/blk-cgroup.c | 76 +- block/blk-cgroup.h | 12 +- block/blk-core.c | 80 +- block/blk-flush.c | 6 +- block/blk-ia-ranges.c | 65 +- block/blk-ioc.c | 2 + block/blk-iocost.c | 22 +- block/blk-iolatency.c | 30 +- block/blk-ioprio.c | 57 +- block/blk-ioprio.h | 9 + block/blk-lib.c | 6 +- block/blk-merge.c | 79 +- block/blk-mq-debugfs-zoned.c | 6 +- block/blk-mq-debugfs.c | 19 +- block/blk-mq-sysfs.c | 45 +- block/blk-mq-tag.c | 31 +- block/blk-mq-tag.h | 10 +- block/blk-mq.c | 105 +- block/blk-mq.h | 39 +- block/blk-rq-qos.c | 10 +- block/blk-rq-qos.h | 11 +- block/blk-settings.c | 11 +- block/blk-sysfs.c | 60 +- block/blk-throttle.c | 7 +- block/blk-wbt.c | 30 +- block/blk-zoned.c | 92 +- block/blk.h | 34 +- block/bounce.c | 13 +- block/bsg-lib.c | 6 +- block/elevator.h | 2 +- block/fops.c | 28 +- block/genhd.c | 80 +- block/ioctl.c | 2 +- block/ioprio.c | 58 +- block/kyber-iosched.c | 8 +- block/mq-deadline.c | 4 +- block/partitions/core.c | 3 +- drivers/block/Kconfig | 9 + drivers/block/Makefile | 2 + drivers/block/amiflop.c | 2 +- drivers/block/aoe/aoeblk.c | 2 +- drivers/block/aoe/aoedev.c | 2 +- drivers/block/ataflop.c | 5 +- drivers/block/brd.c | 8 +- drivers/block/drbd/drbd_actlog.c | 9 +- drivers/block/drbd/drbd_bitmap.c | 2 +- drivers/block/drbd/drbd_int.h | 5 +- drivers/block/drbd/drbd_main.c | 4 +- drivers/block/drbd/drbd_receiver.c | 24 +- drivers/block/drbd/drbd_req.c | 6 +- drivers/block/drbd/drbd_worker.c | 2 +- drivers/block/floppy.c | 8 +- drivers/block/loop.c | 3 +- drivers/block/mtip32xx/mtip32xx.c | 307 +----- drivers/block/mtip32xx/mtip32xx.h | 5 - drivers/block/n64cart.c | 2 +- drivers/block/nbd.c | 9 +- drivers/block/null_blk/main.c | 15 +- drivers/block/null_blk/null_blk.h | 12 +- drivers/block/null_blk/trace.h | 2 +- drivers/block/null_blk/zoned.c | 12 +- drivers/block/paride/pcd.c | 4 +- drivers/block/paride/pd.c | 6 +- drivers/block/paride/pf.c | 4 +- drivers/block/pktcdvd.c | 14 +- drivers/block/ps3disk.c | 4 +- drivers/block/ps3vram.c | 4 +- drivers/block/rbd.c | 2 +- drivers/block/rnbd/rnbd-clt.c | 6 +- drivers/block/rnbd/rnbd-proto.h | 7 +- drivers/block/rnbd/rnbd-srv-dev.c | 1 - drivers/block/rnbd/rnbd-srv-dev.h | 1 - drivers/block/rnbd/rnbd-srv-sysfs.c | 5 +- drivers/block/rnbd/rnbd-srv.c | 9 +- drivers/block/rnbd/rnbd-srv.h | 3 +- drivers/block/sunvdc.c | 4 +- drivers/block/swim.c | 2 +- drivers/block/swim3.c | 2 +- drivers/block/sx8.c | 6 +- drivers/block/ublk_drv.c | 1545 +++++++++++++++++++++++++++ drivers/block/virtio_blk.c | 3 +- drivers/block/xen-blkback/blkback.c | 6 +- drivers/block/xen-blkfront.c | 4 +- drivers/block/z2ram.c | 3 +- drivers/block/zram/zram_drv.c | 8 +- drivers/cdrom/gdrom.c | 3 +- drivers/infiniband/ulp/srp/ib_srp.c | 3 +- drivers/md/bcache/super.c | 27 +- drivers/md/dm-bufio.c | 26 +- drivers/md/dm-ebs-target.c | 15 +- drivers/md/dm-flakey.c | 8 +- drivers/md/dm-integrity.c | 76 +- drivers/md/dm-io.c | 38 +- drivers/md/dm-kcopyd.c | 26 +- drivers/md/dm-log.c | 8 +- drivers/md/dm-raid.c | 2 +- drivers/md/dm-raid1.c | 12 +- drivers/md/dm-snap-persistent.c | 25 +- drivers/md/dm-table.c | 6 +- drivers/md/dm-writecache.c | 12 +- drivers/md/dm-zone.c | 88 +- drivers/md/dm-zoned-metadata.c | 5 +- drivers/md/dm-zoned-target.c | 25 +- drivers/md/dm-zoned.h | 2 +- drivers/md/dm.c | 33 +- drivers/md/md-bitmap.c | 6 +- drivers/md/md.c | 16 +- drivers/md/md.h | 3 +- drivers/md/raid1.c | 14 +- drivers/md/raid10.c | 22 +- drivers/md/raid5-cache.c | 12 +- drivers/md/raid5-ppl.c | 12 +- drivers/md/raid5.c | 3 +- drivers/memstick/core/ms_block.c | 3 +- drivers/memstick/core/mspro_block.c | 3 +- drivers/mmc/core/block.c | 6 +- drivers/mmc/core/queue.c | 4 +- drivers/mtd/mtd_blkdevs.c | 4 +- drivers/mtd/ubi/block.c | 4 +- drivers/nvdimm/btt.c | 8 +- drivers/nvdimm/pmem.c | 6 +- drivers/nvme/host/apple.c | 5 +- drivers/nvme/host/core.c | 5 +- drivers/nvme/host/fc.c | 18 +- drivers/nvme/host/ioctl.c | 4 +- drivers/nvme/host/multipath.c | 4 +- drivers/nvme/host/nvme.h | 4 +- drivers/nvme/host/pci.c | 4 +- drivers/nvme/host/rdma.c | 15 +- drivers/nvme/host/tcp.c | 15 +- drivers/nvme/host/zns.c | 6 +- drivers/nvme/target/io-cmd-bdev.c | 17 +- drivers/nvme/target/loop.c | 12 +- drivers/nvme/target/zns.c | 24 +- drivers/s390/block/dasd.c | 4 +- drivers/s390/block/dasd_genhd.c | 4 +- drivers/s390/block/dasd_int.h | 2 +- drivers/s390/block/dcssblk.c | 8 +- drivers/s390/block/scm_blk.c | 4 +- drivers/scsi/aacraid/comminit.c | 2 +- drivers/scsi/aacraid/linit.c | 2 +- drivers/scsi/device_handler/scsi_dh_alua.c | 4 +- drivers/scsi/device_handler/scsi_dh_emc.c | 2 +- drivers/scsi/device_handler/scsi_dh_hp_sw.c | 4 +- drivers/scsi/device_handler/scsi_dh_rdac.c | 2 +- drivers/scsi/fnic/fnic_scsi.c | 14 +- drivers/scsi/hosts.c | 14 +- drivers/scsi/mpi3mr/mpi3mr_os.c | 16 +- drivers/scsi/scsi_error.c | 22 +- drivers/scsi/scsi_lib.c | 26 +- drivers/scsi/scsi_priv.h | 4 +- drivers/scsi/scsi_sysfs.c | 2 +- drivers/scsi/sd.c | 10 +- drivers/scsi/sd_zbc.c | 12 +- drivers/scsi/sr.c | 4 +- drivers/target/target_core_iblock.c | 4 +- drivers/ufs/core/ufshcd.c | 4 +- drivers/ufs/core/ufshpb.c | 7 +- fs/btrfs/check-integrity.c | 4 +- fs/btrfs/compression.c | 6 +- fs/btrfs/compression.h | 2 +- fs/btrfs/extent_io.c | 18 +- fs/btrfs/inode.c | 4 +- fs/btrfs/raid56.c | 4 +- fs/buffer.c | 61 +- fs/direct-io.c | 40 +- fs/ext4/ext4.h | 8 +- fs/ext4/fast_commit.c | 4 +- fs/ext4/mmp.c | 11 +- fs/ext4/super.c | 20 +- fs/f2fs/data.c | 11 +- fs/f2fs/f2fs.h | 6 +- fs/f2fs/node.c | 2 +- fs/f2fs/segment.c | 2 +- fs/gfs2/bmap.c | 5 +- fs/gfs2/dir.c | 5 +- fs/gfs2/log.c | 4 +- fs/gfs2/log.h | 2 +- fs/gfs2/lops.c | 4 +- fs/gfs2/lops.h | 2 +- fs/gfs2/meta_io.c | 18 +- fs/gfs2/quota.c | 2 +- fs/hfsplus/hfsplus_fs.h | 2 +- fs/hfsplus/part_tbl.c | 5 +- fs/hfsplus/super.c | 4 +- fs/hfsplus/wrapper.c | 12 +- fs/iomap/direct-io.c | 12 +- fs/isofs/compress.c | 2 +- fs/jbd2/commit.c | 8 +- fs/jbd2/journal.c | 25 +- fs/jbd2/recovery.c | 4 +- fs/mpage.c | 6 +- fs/nfs/blocklayout/blocklayout.c | 13 +- fs/nilfs2/btnode.c | 8 +- fs/nilfs2/btnode.h | 4 +- fs/nilfs2/btree.c | 6 +- fs/nilfs2/gcinode.c | 7 +- fs/nilfs2/mdt.c | 19 +- fs/ntfs/aops.c | 6 +- fs/ntfs/compress.c | 2 +- fs/ntfs/file.c | 2 +- fs/ntfs/logfile.c | 2 +- fs/ntfs/mft.c | 4 +- fs/ntfs3/file.c | 2 +- fs/ntfs3/fsntfs.c | 2 +- fs/ntfs3/inode.c | 2 +- fs/ntfs3/ntfs_fs.h | 2 +- fs/ocfs2/aops.c | 2 +- fs/ocfs2/buffer_head_io.c | 8 +- fs/ocfs2/cluster/heartbeat.c | 75 +- fs/ocfs2/super.c | 2 +- fs/reiserfs/inode.c | 4 +- fs/reiserfs/journal.c | 12 +- fs/reiserfs/stree.c | 4 +- fs/reiserfs/super.c | 2 +- fs/udf/dir.c | 2 +- fs/udf/directory.c | 2 +- fs/udf/inode.c | 2 +- fs/ufs/balloc.c | 2 +- fs/xfs/xfs_bio_io.c | 2 +- fs/xfs/xfs_buf.c | 4 +- fs/xfs/xfs_linux.h | 2 +- fs/xfs/xfs_log_recover.c | 2 +- fs/zonefs/super.c | 22 +- fs/zonefs/trace.h | 4 +- include/linux/bio.h | 10 +- include/linux/blk-mq.h | 34 +- include/linux/blk_types.h | 119 ++- include/linux/blkdev.h | 224 ++-- include/linux/blktrace_api.h | 13 +- include/linux/buffer_head.h | 9 +- include/linux/dm-io.h | 4 +- include/linux/ioprio.h | 24 +- include/linux/jbd2.h | 2 +- include/linux/uio.h | 2 + include/linux/writeback.h | 4 +- include/scsi/scsi_cmnd.h | 4 +- include/scsi/scsi_device.h | 2 +- include/scsi/scsi_host.h | 2 +- include/trace/events/f2fs.h | 22 +- include/trace/events/jbd2.h | 12 +- include/trace/events/nilfs2.h | 4 +- include/uapi/linux/ublk_cmd.h | 161 +++ kernel/power/swap.c | 29 +- kernel/trace/blktrace.c | 72 +- lib/iov_iter.c | 92 ++ 261 files changed, 3635 insertions(+), 2158 deletions(-) create mode 100644 drivers/block/ublk_drv.c create mode 100644 include/uapi/linux/ublk_cmd.h