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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-24 14:13:34 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-24 14:13:34 -0800 |
commit | 1802979ab1ee8ec5a72987ad518f5a91bf41cd89 (patch) | |
tree | 4b1bfc68a180040d713e8b1f106ca12f2461b8ec /block/blk-mq-sched.c | |
parent | f1ef09fde17f9b77ca1435a5b53a28b203afb81c (diff) | |
parent | 61febef40bfe8ab68259d8545257686e8a0d91d1 (diff) | |
download | linux-stable-1802979ab1ee8ec5a72987ad518f5a91bf41cd89.tar.gz linux-stable-1802979ab1ee8ec5a72987ad518f5a91bf41cd89.tar.bz2 linux-stable-1802979ab1ee8ec5a72987ad518f5a91bf41cd89.zip |
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block updates and fixes from Jens Axboe:
- NVMe updates and fixes that missed the first pull request. This
includes bug fixes, and support for autonomous power management.
- Fix from Christoph for missing clear of the request payload, causing
a problem with (at least) the storvsc driver.
- Further fixes for the queue/bdi life time issues from Jan.
- The Kconfig mq scheduler update from me.
- Fixing a use-after-free in dm-rq, spotted by Bart, introduced in this
merge window.
- Three fixes for nbd from Josef.
- Bug fix from Omar, fixing a bug in sas transport code that oopses
when bsg ioctls were used. From Omar.
- Improvements to the queue restart and tag wait from from Omar.
- Set of fixes for the sed/opal code from Scott.
- Three trivial patches to cciss from Tobin
* 'for-linus' of git://git.kernel.dk/linux-block: (41 commits)
dm-rq: don't dereference request payload after ending request
blk-mq-sched: separate mark hctx and queue restart operations
blk-mq: use sbq wait queues instead of restart for driver tags
block/sed-opal: Propagate original error message to userland.
nvme/pci: re-check security protocol support after reset
block/sed-opal: Introduce free_opal_dev to free the structure and clean up state
nvme: detect NVMe controller in recent MacBooks
nvme-rdma: add support for host_traddr
nvmet-rdma: Fix error handling
nvmet-rdma: use nvme cm status helper
nvme-rdma: move nvme cm status helper to .h file
nvme-fc: don't bother to validate ioccsz and iorcsz
nvme/pci: No special case for queue busy on IO
nvme/core: Fix race kicking freed request_queue
nvme/pci: Disable on removal when disconnected
nvme: Enable autonomous power state transitions
nvme: Add a quirk mechanism that uses identify_ctrl
nvme: make nvmf_register_transport require a create_ctrl callback
nvme: Use CNS as 8-bit field and avoid endianness conversion
nvme: add semicolon in nvme_command setting
...
Diffstat (limited to 'block/blk-mq-sched.c')
-rw-r--r-- | block/blk-mq-sched.c | 29 |
1 files changed, 8 insertions, 21 deletions
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c index 9e8d6795a8c1..98c7b061781e 100644 --- a/block/blk-mq-sched.c +++ b/block/blk-mq-sched.c @@ -205,7 +205,7 @@ void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx) * needing a restart in that case. */ if (!list_empty(&rq_list)) { - blk_mq_sched_mark_restart(hctx); + blk_mq_sched_mark_restart_hctx(hctx); did_work = blk_mq_dispatch_rq_list(hctx, &rq_list); } else if (!has_sched_dispatch) { blk_mq_flush_busy_ctxs(hctx, &rq_list); @@ -331,20 +331,16 @@ static void blk_mq_sched_restart_hctx(struct blk_mq_hw_ctx *hctx) void blk_mq_sched_restart_queues(struct blk_mq_hw_ctx *hctx) { + struct request_queue *q = hctx->queue; unsigned int i; - if (!(hctx->flags & BLK_MQ_F_TAG_SHARED)) + if (test_bit(QUEUE_FLAG_RESTART, &q->queue_flags)) { + if (test_and_clear_bit(QUEUE_FLAG_RESTART, &q->queue_flags)) { + queue_for_each_hw_ctx(q, hctx, i) + blk_mq_sched_restart_hctx(hctx); + } + } else { blk_mq_sched_restart_hctx(hctx); - else { - struct request_queue *q = hctx->queue; - - if (!test_bit(QUEUE_FLAG_RESTART, &q->queue_flags)) - return; - - clear_bit(QUEUE_FLAG_RESTART, &q->queue_flags); - - queue_for_each_hw_ctx(q, hctx, i) - blk_mq_sched_restart_hctx(hctx); } } @@ -498,15 +494,6 @@ int blk_mq_sched_init(struct request_queue *q) { int ret; -#if defined(CONFIG_DEFAULT_SQ_NONE) - if (q->nr_hw_queues == 1) - return 0; -#endif -#if defined(CONFIG_DEFAULT_MQ_NONE) - if (q->nr_hw_queues > 1) - return 0; -#endif - mutex_lock(&q->sysfs_lock); ret = elevator_init(q, NULL); mutex_unlock(&q->sysfs_lock); |