user/sven/linux.git/include/linux/blkdev.h, branch v5.9.14

scsi: sd: sd_zbc: Fix handling of host-aware ZBC disks

2020-09-16T00:08:14Z

When CONFIG_BLK_DEV_ZONED is disabled, allow using host-aware ZBC disks as regular disks. In this case, ensure that command completion is correctly executed by changing sd_zbc_complete() to return good_bytes instead of 0 and causing a hang during device probe (endless retries). When CONFIG_BLK_DEV_ZONED is enabled and a host-aware disk is detected to have partitions, it will be used as a regular disk. In this case, make sure to not do anything in sd_zbc_revalidate_zones() as that triggers warnings. Since all these different cases result in subtle settings of the disk queue zoned model, introduce the block layer helper function blk_queue_set_zoned() to generically implement setting up the effective zoned model according to the disk type, the presence of partitions on the disk and CONFIG_BLK_DEV_ZONED configuration. Link: https://lore.kernel.org/r/20200915073347.832424-2-damien.lemoal@wdc.com Fixes: b72053072c0b ("block: allow partitions on host aware zone devices") Cc: Reported-by: Borislav Petkov Suggested-by: Christoph Hellwig Reviewed-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Signed-off-by: Damien Le Moal Signed-off-by: Martin K. Petersen

Merge tag 'for-5.9/block-merge-20200804' of git://git.kernel.dk/linux-block

2020-08-05T18:12:34Z

Pull block stacking updates from Jens Axboe: "The stacking related fixes depended on both the core block and drivers branches, so here's a topic branch with that change. Outside of that, a late fix from Johannes for zone revalidation" * tag 'for-5.9/block-merge-20200804' of git://git.kernel.dk/linux-block: block: don't do revalidate zones on invalid devices block: remove blk_queue_stack_limits block: remove bdev_stack_limits block: inherit the zoned characteristics in blk_stack_limits

Merge tag 'for-5.9/drivers-20200803' of git://git.kernel.dk/linux-block

2020-08-05T17:51:40Z

Pull block driver updates from Jens Axboe: - NVMe: - ZNS support (Aravind, Keith, Matias, Niklas) - Misc cleanups, optimizations, fixes (Baolin, Chaitanya, David, Dongli, Max, Sagi) - null_blk zone capacity support (Aravind) - MD: - raid5/6 fixes (ChangSyun) - Warning fixes (Damien) - raid5 stripe fixes (Guoqing, Song, Yufen) - sysfs deadlock fix (Junxiao) - raid10 deadlock fix (Vitaly) - struct_size conversions (Gustavo) - Set of bcache updates/fixes (Coly) * tag 'for-5.9/drivers-20200803' of git://git.kernel.dk/linux-block: (117 commits) md/raid5: Allow degraded raid6 to do rmw md/raid5: Fix Force reconstruct-write io stuck in degraded raid5 raid5: don't duplicate code for different paths in handle_stripe raid5-cache: hold spinlock instead of mutex in r5c_journal_mode_show md: print errno in super_written md/raid5: remove the redundant setting of STRIPE_HANDLE md: register new md sysfs file 'uuid' read-only md: fix max sectors calculation for super 1.0 nvme-loop: remove extra variable in create ctrl nvme-loop: set ctrl state connecting after init nvme-multipath: do not fall back to __nvme_find_path() for non-optimized paths nvme-multipath: fix logic for non-optimized paths nvme-rdma: fix controller reset hang during traffic nvme-tcp: fix controller reset hang during traffic nvmet: introduce the passthru Kconfig option nvmet: introduce the passthru configfs interface nvmet: Add passthru enable/disable helpers nvmet: add passthru code to process commands nvme: export nvme_find_get_ns() and nvme_put_ns() nvme: introduce nvme_ctrl_get_by_path() ...

Merge tag 'for-5.9/io_uring-20200802' of git://git.kernel.dk/linux-block

2020-08-03T20:01:22Z

Pull io_uring updates from Jens Axboe: "Lots of cleanups in here, hardening the code and/or making it easier to read and fixing bugs, but a core feature/change too adding support for real async buffered reads. With the latter in place, we just need buffered write async support and we're done relying on kthreads for the fast path. In detail: - Cleanup how memory accounting is done on ring setup/free (Bijan) - sq array offset calculation fixup (Dmitry) - Consistently handle blocking off O_DIRECT submission path (me) - Support proper async buffered reads, instead of relying on kthread offload for that. This uses the page waitqueue to drive retries from task_work, like we handle poll based retry. (me) - IO completion optimizations (me) - Fix race with accounting and ring fd install (me) - Support EPOLLEXCLUSIVE (Jiufei) - Get rid of the io_kiocb unionizing, made possible by shrinking other bits (Pavel) - Completion side cleanups (Pavel) - Cleanup REQ_F_ flags handling, and kill off many of them (Pavel) - Request environment grabbing cleanups (Pavel) - File and socket read/write cleanups (Pavel) - Improve kiocb_set_rw_flags() (Pavel) - Tons of fixes and cleanups (Pavel) - IORING_SQ_NEED_WAKEUP clear fix (Xiaoguang)" * tag 'for-5.9/io_uring-20200802' of git://git.kernel.dk/linux-block: (127 commits) io_uring: flip if handling after io_setup_async_rw fs: optimise kiocb_set_rw_flags() io_uring: don't touch 'ctx' after installing file descriptor io_uring: get rid of atomic FAA for cq_timeouts io_uring: consolidate *_check_overflow accounting io_uring: fix stalled deferred requests io_uring: fix racy overflow count reporting io_uring: deduplicate __io_complete_rw() io_uring: de-unionise io_kiocb io-wq: update hash bits io_uring: fix missing io_queue_linked_timeout() io_uring: mark ->work uninitialised after cleanup io_uring: deduplicate io_grab_files() calls io_uring: don't do opcode prep twice io_uring: clear IORING_SQ_NEED_WAKEUP after executing task works io_uring: batch put_task_struct() tasks: add put_task_struct_many() io_uring: return locked and pinned page accounting io_uring: don't miscount pinned memory io_uring: don't open-code recv kbuf managment ...

Merge tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block

2020-08-03T18:57:03Z

Pull core block updates from Jens Axboe: "Good amount of cleanups and tech debt removals in here, and as a result, the diffstat shows a nice net reduction in code. - Softirq completion cleanups (Christoph) - Stop using ->queuedata (Christoph) - Cleanup bd claiming (Christoph) - Use check_events, moving away from the legacy media change (Christoph) - Use inode i_blkbits consistently (Christoph) - Remove old unused writeback congestion bits (Christoph) - Cleanup/unify submission path (Christoph) - Use bio_uninit consistently, instead of bio_disassociate_blkg (Christoph) - sbitmap cleared bits handling (John) - Request merging blktrace event addition (Jan) - sysfs add/remove race fixes (Luis) - blk-mq tag fixes/optimizations (Ming) - Duplicate words in comments (Randy) - Flush deferral cleanup (Yufen) - IO context locking/retry fixes (John) - struct_size() usage (Gustavo) - blk-iocost fixes (Chengming) - blk-cgroup IO stats fixes (Boris) - Various little fixes" * tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block: (135 commits) block: blk-timeout: delete duplicated word block: blk-mq-sched: delete duplicated word block: blk-mq: delete duplicated word block: genhd: delete duplicated words block: elevator: delete duplicated word and fix typos block: bio: delete duplicated words block: bfq-iosched: fix duplicated word iocost_monitor: start from the oldest usage index iocost: Fix check condition of iocg abs_vdebt block: Remove callback typedefs for blk_mq_ops block: Use non _rcu version of list functions for tag_set_list blk-cgroup: show global disk stats in root cgroup io.stat blk-cgroup: make iostat functions visible to stat printing block: improve discard bio alignment in __blkdev_issue_discard() block: change REQ_OP_ZONE_RESET and REQ_OP_ZONE_RESET_ALL to be odd numbers block: defer flush request no matter whether we have elevator block: make blk_timeout_init() static block: remove retry loop in ioc_release_fn() block: remove unnecessary ioc nested locking block: integrate bd_start_claiming into __blkdev_get ...

block: remove blk_queue_stack_limits

2020-07-20T21:38:52Z

This function is just a tiny wrapper around blk_stack_limits. Open code it int the two callers. Reviewed-by: Johannes Thumshirn Reviewed-by: Damien Le Moal Tested-by: Damien Le Moal Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: remove bdev_stack_limits

2020-07-20T21:38:52Z

This function is just a tiny wrapper around blk_stack_limit and has two callers. Simplify the stack a bit by open coding it in the two callers. Reviewed-by: Johannes Thumshirn Reviewed-by: Damien Le Moal Tested-by: Damien Le Moal Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: inherit the zoned characteristics in blk_stack_limits

2020-07-20T21:38:52Z

Lift the code from device mapper into blk_stack_limits to inherity the stacking limitations. This ensures we do the right thing for all stacked zoned block devices. Reviewed-by: Johannes Thumshirn Reviewed-by: Damien Le Moal Tested-by: Damien Le Moal Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

Merge branch 'for-5.9/drivers' into for-5.9/block-merge

2020-07-20T21:38:27Z

* for-5.9/drivers: (38 commits) block: add max_active_zones to blk-sysfs block: add max_open_zones to blk-sysfs s390/dasd: Use struct_size() helper s390/dasd: fix inability to use DASD with DIAG driver md-cluster: fix wild pointer of unlock_all_bitmaps() md/raid5-cache: clear MD_SB_CHANGE_PENDING before flushing stripes md: fix deadlock causing by sysfs_notify md: improve io stats accounting md: raid0/linear: fix dereference before null check on pointer mddev rsxx: switch from 'pci_free_consistent()' to 'dma_free_coherent()' nvme: remove ns->disk checks nvme-pci: use standard block status symbolic names nvme-pci: use the consistent return type of nvme_pci_iod_alloc_size() nvme-pci: add a blank line after declarations nvme-pci: fix some comments issues nvme-pci: remove redundant segment validation nvme: document quirked Intel models nvme: expose reconnect_delay and ctrl_loss_tmo via sysfs nvme: support for zoned namespaces nvme: support for multiple Command Sets Supported and Effects log pages ...

Merge branch 'for-5.9/block' into for-5.9/block-merge

2020-07-20T21:38:23Z

* for-5.9/block: (124 commits) blk-cgroup: show global disk stats in root cgroup io.stat blk-cgroup: make iostat functions visible to stat printing block: improve discard bio alignment in __blkdev_issue_discard() block: change REQ_OP_ZONE_RESET and REQ_OP_ZONE_RESET_ALL to be odd numbers block: defer flush request no matter whether we have elevator block: make blk_timeout_init() static block: remove retry loop in ioc_release_fn() block: remove unnecessary ioc nested locking block: integrate bd_start_claiming into __blkdev_get block: use bd_prepare_to_claim directly in the loop driver block: refactor bd_start_claiming block: simplify the restart case in __blkdev_get Revert "blk-rq-qos: remove redundant finish_wait to rq_qos_wait." block: always remove partitions from blk_drop_partitions() block: relax jiffies rounding for timeouts blk-mq: remove redundant validation in __blk_mq_end_request() blk-mq: Remove unnecessary local variable writeback: remove bdi->congested_fn writeback: remove struct bdi_writeback_congested writeback: remove {set,clear}_wb_congested ...