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2021-06-21block/mq-deadline: Add I/O priority supportBart Van Assche1-114/+228
Maintain one dispatch list and one FIFO list per I/O priority class: RT, BE and IDLE. Maintain statistics for each priority level. Split the debugfs attributes per priority level as follows: $ ls /sys/kernel/debug/block/.../sched/ async_depth dispatch2 read_next_rq write2_fifo_list batching read0_fifo_list starved write_next_rq dispatch0 read1_fifo_list write0_fifo_list dispatch1 read2_fifo_list write1_fifo_list Cc: Damien Le Moal <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Cc: Johannes Thumshirn <[email protected]> Cc: Himanshu Madhani <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/mq-deadline: Micro-optimize the batching algorithmBart Van Assche1-6/+5
When dispatching the first request of a batch, the deadline_move_request() call clears .next_rq[] for the opposite data direction. .next_rq[] is not restored when changing data direction. Fix this by not clearing .next_rq[] and by keeping track of the data direction of a batch in a variable instead. This patch is a micro-optimization because: - The number of deadline_next_request() calls for the read direction is halved. - The number of times that deadline_next_request() returns NULL is reduced. Cc: Damien Le Moal <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Cc: Johannes Thumshirn <[email protected]> Cc: Himanshu Madhani <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/mq-deadline: Reserve 25% of scheduler tags for synchronous requestsBart Van Assche1-0/+55
For interactive workloads it is important that synchronous requests are not delayed. Hence reserve 25% of scheduler tags for synchronous requests. This patch still allows asynchronous requests to fill the hardware queues since blk_mq_init_sched() makes sure that the number of scheduler requests is the double of the hardware queue depth. From blk_mq_init_sched(): q->nr_requests = 2 * min_t(unsigned int, q->tag_set->queue_depth, BLKDEV_MAX_RQ); Cc: Damien Le Moal <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Cc: Johannes Thumshirn <[email protected]> Cc: Himanshu Madhani <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/mq-deadline: Improve the sysfs show and store macrosBart Van Assche1-37/+29
Define separate macros for integers and jiffies to improve readability. Use sysfs_emit() and kstrtoint() instead of sprintf() and simple_strtol(). The former functions are the recommended functions. Cc: Damien Le Moal <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Cc: Johannes Thumshirn <[email protected]> Cc: Himanshu Madhani <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/mq-deadline: Improve compile-time argument checkingBart Van Assche1-47/+49
Modern compilers complain if an out-of-range value is passed to a function argument that has an enumeration type. Let the compiler detect out-of-range data direction arguments instead of verifying the data_dir argument at runtime. Reviewed-by: Chaitanya Kulkarni <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Cc: Damien Le Moal <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/mq-deadline: Rename dd_init_queue() and dd_exit_queue()Bart Van Assche1-4/+4
Change "queue" into "sched" to make the function names reflect better the purpose of these functions. Reviewed-by: Chaitanya Kulkarni <[email protected]> Reviewed-by: Damien Le Moal <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Cc: Damien Le Moal <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/mq-deadline: Remove two local variablesBart Van Assche1-6/+2
Make __dd_dispatch_request() easier to read by removing two local variables. Reviewed-by: Chaitanya Kulkarni <[email protected]> Reviewed-by: Damien Le Moal <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Cc: Damien Le Moal <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/mq-deadline: Add two lockdep_assert_held() statementsBart Van Assche1-0/+4
Document the locking strategy by adding two lockdep_assert_held() statements. Reviewed-by: Chaitanya Kulkarni <[email protected]> Reviewed-by: Damien Le Moal <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Cc: Damien Le Moal <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/mq-deadline: Add several commentsBart Van Assche1-0/+18
Make the code easier to read by adding more comments. Reviewed-by: Damien Le Moal <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Ming Lei <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block: Introduce the ioprio rq-qos policyBart Van Assche8-0/+354
Introduce an rq-qos policy that assigns an I/O priority to requests based on blk-cgroup configuration settings. This policy has the following advantages over the ioprio_set() system call: - This policy is cgroup based so it has all the advantages of cgroups. - While ioprio_set() does not affect page cache writeback I/O, this rq-qos controller affects page cache writeback I/O for filesystems that support assiociating a cgroup with writeback I/O. See also Documentation/admin-guide/cgroup-v2.rst. Cc: Damien Le Moal <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Cc: Johannes Thumshirn <[email protected]> Cc: Himanshu Madhani <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/blk-rq-qos: Move a function from a header file into a C fileBart Van Assche2-13/+13
rq_qos_id_to_name() is only used in blk-mq-debugfs.c so move that function into in blk-mq-debugfs.c. Cc: Damien Le Moal <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Cc: Johannes Thumshirn <[email protected]> Cc: Himanshu Madhani <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/blk-cgroup: Swap the blk_throtl_init() and blk_iolatency_init() callsBart Van Assche1-5/+4
Before adding more calls in this function, simplify the error path. Reviewed-by: Damien Le Moal <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Cc: Himanshu Madhani <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Acked-by: Tejun Heo <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-21block/Kconfig: Make the BLK_WBT and BLK_WBT_MQ entries consecutiveBart Van Assche1-7/+7
These entries were consecutive at the time of their introduction but are no longer consecutive. Make these again consecutive. Additionally, modify the help text since it refers to blk-mq and since the legacy block layer has been removed. Reviewed-by: Damien Le Moal <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ming Lei <[email protected]> Cc: Himanshu Madhani <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-18blk-wbt: remove outdated commentlijiazi1-1/+0
Now wbt_wait() returns void, so remove now outdated comment. Signed-off-by: lijiazi <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-18blk-mq: fix an IS_ERR() vs NULL bugDan Carpenter1-1/+1
The __blk_mq_alloc_disk() function doesn't return NULLs it returns error pointers. Fixes: b461dfc49eb6 ("blk-mq: add the blk_mq_alloc_disk APIs") Signed-off-by: Dan Carpenter <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/YMyjci35WBqrtqG+@mwanda Signed-off-by: Jens Axboe <[email protected]>
2021-06-18block: Remove unnecessary elevator operation checksDamien Le Moal2-7/+10
The insert_requests and dispatch_request elevator operations are mandatory for the correct execution of an elevator, and all implemented elevators (bfq, kyber and mq-deadline) implement them. As a result, there is no need to check for these operations before calling them when a queue has an elevator set. This simplifies the code in __blk_mq_sched_dispatch_requests() and blk_mq_sched_insert_request(). To avoid out-of-tree elevators to crash the kernel in case of bad implementation, add a check in elv_register() to verify that these operations are implemented. A small, probably not significant, IOPS improvement of 0.1% is observed with this patch applied (4.117 MIOPS to 4.123 MIOPS, average of 20 fio runs doing 4K random direct reads with psync and 32 jobs). Signed-off-by: Damien Le Moal <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-18blk-mq: fix use-after-free in blk_mq_exit_schedMing Lei1-1/+3
tagset can't be used after blk_cleanup_queue() is returned because freeing tagset usually follows blk_clenup_queue(). Commit d97e594c5166 ("blk-mq: Use request queue-wide tags for tagset-wide sbitmap") adds check on q->tag_set->flags in blk_mq_exit_sched(), and causes use-after-free. Fixes it by using hctx->flags. Reported-by: [email protected] Fixes: d97e594c5166 ("blk-mq: Use request queue-wide tags for tagset-wide sbitmap") Cc: John Garry <[email protected]> Signed-off-by: Ming Lei <[email protected]> Tested-by: John Garry <[email protected]> Reviewed-by: John Garry <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-16docs/cgroup-v1/blkio: update for 5.x kernelsKir Kolyshkin1-15/+16
Commit bf382fb0bcef4 ("block: remove legacy IO schedulers", Oct 12 2018) removes the CFQ scheduler, together with blkio.weight and blkio.weight_device described in cgroup v1 documentation. Users are supposed to use the BFQ scheduler, which cgroup file for setting weight is blkio.bfq.weight, but there is no way to set per-device weight. Later, commit 795fe54c2a8 per-device weights for BFQ, meaning that blkio.bfq.weight and blkio.bfq.weight_device can be used in a way similar to the old CFQ cgroup interface. Yet, the cgroup v1 docs were never updated. Fix this: - use the new file names; - fix the range for weight (used to be 10..1000, now 1..1000); - link to BFQ scheduler docs. Acked-by: Tejun Heo <[email protected]> Signed-off-by: Kir Kolyshkin <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2021-06-16docs/cgroup-v1/blkio: stop abusing itemized listKir Kolyshkin1-63/+67
Fix many formatting issues by stop (ab)using itemized lists for everything (mostly replaced by definition lists). Acked-by: Tejun Heo <[email protected]> Signed-off-by: Kir Kolyshkin <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2021-06-16docs: block/bfq: describe per-device weightKir Kolyshkin1-11/+27
The functionality of setting per-device weight for BFQ was added in v5.4 (commit 795fe54c2a828099), but the documentation was never updated. While at it, improve formatting a bit. Signed-off-by: Kir Kolyshkin <[email protected]> Link: https://lore.kernel.org/r/[email protected] Acked-by: Tejun Heo <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2021-06-16block: mark queue init done at the end of blk_register_queueMing Lei1-14/+15
Mark queue init done when everything is done well in blk_register_queue(), so that wbt_enable_default() can be run quickly without any RCU period involved since adding rq qos requires to freeze queue. Also no any side effect by delaying to mark queue init done. Reported-by: Yi Zhang <[email protected]> Cc: Bart Van Assche <[email protected]> Signed-off-by: Ming Lei <[email protected]> Reviewed-by: Bart Van Assche <[email protected]> Tested-by: Yi Zhang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-16block: fix race between adding/removing rq qos and normal IOMing Lei1-0/+24
Yi reported several kernel panics on: [16687.001777] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 ... [16687.163549] pc : __rq_qos_track+0x38/0x60 or [ 997.690455] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 ... [ 997.850347] pc : __rq_qos_done+0x2c/0x50 Turns out it is caused by race between adding rq qos(wbt) and normal IO because rq_qos_add can be run when IO is being submitted, fix this issue by freezing queue before adding/deleting rq qos to queue. rq_qos_exit() needn't to freeze queue because it is called after queue has been frozen. iolatency calls rq_qos_add() during allocating queue, so freezing won't add delay because queue usage refcount works at atomic mode at that time. iocost calls rq_qos_add() when writing cgroup attribute file, that is fine to freeze queue at that time since we usually freeze queue when storing to queue sysfs attribute, meantime iocost only exists on the root cgroup. wbt_init calls it in blk_register_queue() and queue sysfs attribute store(queue_wb_lat_store() when write it 1st time in case of !BLK_WBT_MQ), the following patch will speedup the queue freezing in wbt_init. Reported-by: Yi Zhang <[email protected]> Cc: Bart Van Assche <[email protected]> Signed-off-by: Ming Lei <[email protected]> Reviewed-by: Bart Van Assche <[email protected]> Tested-by: Yi Zhang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-16loop: fix order of cleaning up the queue and freeing the tagsetChristoph Hellwig1-1/+1
We must release the queue before freeing the tagset. Fixes: 1c99502fae35 ("loop: use blk_mq_alloc_disk and blk_cleanup_disk") Reported-by: Bruno Goncalves <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2021-06-16mtd_blkdevs: initialze new->rq in add_mtd_blktrans_devChristoph Hellwig1-0/+1
Various places expect the request_queue in ->rq. Initialize it to avoid NULL pointer derefences. Fixes: 6966bb921def ("mtd_blkdevs: use blk_mq_alloc_disk") Reported-by: Marek Szyprowski <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Tested-by: Marek Szyprowski <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2021-06-11z2ram: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-11/+4
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11ataflop: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-12/+4
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11amiflop: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-12/+4
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11scm_blk: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-15/+6
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Tested-by: Niklas Schnelle <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11ubi: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-39/+29
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11xen-blkfront: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-57/+39
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11sx8: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-16/+7
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11rnbd: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-27/+8
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Jack Wang <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11rbd: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-34/+18
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11pd: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-18/+12
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11nullb: use blk_mq_alloc_diskChristoph Hellwig1-6/+5
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11nbd: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-32/+21
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11loop: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-13/+6
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11floppy: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig1-15/+5
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11aoe: use blk_mq_alloc_disk and blk_cleanup_diskChristoph Hellwig2-23/+13
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11blk-mq: remove blk_mq_init_sq_queueChristoph Hellwig2-26/+0
All users are gone now. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11gdrom: use blk_mq_alloc_diskChristoph Hellwig1-24/+21
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11sunvdc: use blk_mq_alloc_diskChristoph Hellwig1-34/+13
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11swim: use blk_mq_alloc_diskChristoph Hellwig1-20/+14
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11swim3: use blk_mq_alloc_diskChristoph Hellwig1-19/+14
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11ps3disk: use blk_mq_alloc_diskChristoph Hellwig1-22/+14
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Tested-by: Geoff Levand <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11mtd_blkdevs: use blk_mq_alloc_diskChristoph Hellwig1-26/+22
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11mspro: use blk_mq_alloc_diskChristoph Hellwig1-15/+11
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: Ulf Hansson <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11ms_block: use blk_mq_alloc_diskChristoph Hellwig1-15/+10
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: Ulf Hansson <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11pf: use blk_mq_alloc_diskChristoph Hellwig1-11/+7
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-06-11pcd: use blk_mq_alloc_diskChristoph Hellwig1-11/+8
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
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