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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-12 14:13:23 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-12 14:13:23 -0800 |
commit | 3e12cefbe143b4947171ff92dd50024c4841e291 (patch) | |
tree | f58ec23a4092576ed08843cca5f5443a32106bd1 /block/blk-mq.c | |
parent | 6bec0035286119eefc32a5b1102127e6a4032cb2 (diff) | |
parent | d427e3c82ef4fc5fbb22c0cef0b040e6767b1028 (diff) | |
download | linux-3e12cefbe143b4947171ff92dd50024c4841e291.tar.bz2 |
Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block
Pull core block IO changes from Jens Axboe:
"This contains:
- A series from Christoph that cleans up and refactors various parts
of the REQ_BLOCK_PC handling. Contributions in that series from
Dongsu Park and Kent Overstreet as well.
- CFQ:
- A bug fix for cfq for realtime IO scheduling from Jeff Moyer.
- A stable patch fixing a potential crash in CFQ in OOM
situations. From Konstantin Khlebnikov.
- blk-mq:
- Add support for tag allocation policies, from Shaohua. This is
a prep patch enabling libata (and other SCSI parts) to use the
blk-mq tagging, instead of rolling their own.
- Various little tweaks from Keith and Mike, in preparation for
DM blk-mq support.
- Minor little fixes or tweaks from me.
- A double free error fix from Tony Battersby.
- The partition 4k issue fixes from Matthew and Boaz.
- Add support for zero+unprovision for blkdev_issue_zeroout() from
Martin"
* 'for-3.20/core' of git://git.kernel.dk/linux-block: (27 commits)
block: remove unused function blk_bio_map_sg
block: handle the null_mapped flag correctly in blk_rq_map_user_iov
blk-mq: fix double-free in error path
block: prevent request-to-request merging with gaps if not allowed
blk-mq: make blk_mq_run_queues() static
dm: fix multipath regression due to initializing wrong request
cfq-iosched: handle failure of cfq group allocation
block: Quiesce zeroout wrapper
block: rewrite and split __bio_copy_iov()
block: merge __bio_map_user_iov into bio_map_user_iov
block: merge __bio_map_kern into bio_map_kern
block: pass iov_iter to the BLOCK_PC mapping functions
block: add a helper to free bio bounce buffer pages
block: use blk_rq_map_user_iov to implement blk_rq_map_user
block: simplify bio_map_kern
block: mark blk-mq devices as stackable
block: keep established cmd_flags when cloning into a blk-mq request
block: add blk-mq support to blk_insert_cloned_request()
block: require blk_rq_prep_clone() be given an initialized clone request
blk-mq: add tag allocation policy
...
Diffstat (limited to 'block/blk-mq.c')
-rw-r--r-- | block/blk-mq.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 2390c5541e71..4f4bea21052e 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -33,6 +33,7 @@ static DEFINE_MUTEX(all_q_mutex); static LIST_HEAD(all_q_list); static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx); +static void blk_mq_run_queues(struct request_queue *q); /* * Check if any of the ctx's have pending work in this hardware queue @@ -117,7 +118,7 @@ void blk_mq_freeze_queue_start(struct request_queue *q) if (freeze) { percpu_ref_kill(&q->mq_usage_counter); - blk_mq_run_queues(q, false); + blk_mq_run_queues(q); } } EXPORT_SYMBOL_GPL(blk_mq_freeze_queue_start); @@ -136,6 +137,7 @@ void blk_mq_freeze_queue(struct request_queue *q) blk_mq_freeze_queue_start(q); blk_mq_freeze_queue_wait(q); } +EXPORT_SYMBOL_GPL(blk_mq_freeze_queue); void blk_mq_unfreeze_queue(struct request_queue *q) { @@ -902,7 +904,7 @@ void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) &hctx->run_work, 0); } -void blk_mq_run_queues(struct request_queue *q, bool async) +static void blk_mq_run_queues(struct request_queue *q) { struct blk_mq_hw_ctx *hctx; int i; @@ -913,10 +915,9 @@ void blk_mq_run_queues(struct request_queue *q, bool async) test_bit(BLK_MQ_S_STOPPED, &hctx->state)) continue; - blk_mq_run_hw_queue(hctx, async); + blk_mq_run_hw_queue(hctx, false); } } -EXPORT_SYMBOL(blk_mq_run_queues); void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx) { @@ -954,7 +955,6 @@ void blk_mq_start_hw_queues(struct request_queue *q) } EXPORT_SYMBOL(blk_mq_start_hw_queues); - void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async) { struct blk_mq_hw_ctx *hctx; @@ -1423,7 +1423,8 @@ static struct blk_mq_tags *blk_mq_init_rq_map(struct blk_mq_tag_set *set, size_t rq_size, left; tags = blk_mq_init_tags(set->queue_depth, set->reserved_tags, - set->numa_node); + set->numa_node, + BLK_MQ_FLAG_TO_ALLOC_POLICY(set->flags)); if (!tags) return NULL; |