diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-06-26 12:20:57 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-06-28 23:00:07 +0200 |
| commit | 4b855ad37194f7bdbb200ce7a1c7051fecb56a08 (patch) | |
| tree | ca9c7d84a2632c602492171061bb83afb5fbe1a7 /block/blk-mq.h | |
| parent | blk-mq: Include all present CPUs in the default queue mapping (diff) | |
| download | linux-4b855ad37194f7bdbb200ce7a1c7051fecb56a08.tar.xz linux-4b855ad37194f7bdbb200ce7a1c7051fecb56a08.zip | |
blk-mq: Create hctx for each present CPU
Currently we only create hctx for online CPUs, which can lead to a lot
of churn due to frequent soft offline / online operations. Instead
allocate one for each present CPU to avoid this and dramatically simplify
the code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Cc: Keith Busch <keith.busch@intel.com>
Cc: linux-block@vger.kernel.org
Cc: linux-nvme@lists.infradead.org
Link: http://lkml.kernel.org/r/20170626102058.10200-3-hch@lst.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'block/blk-mq.h')
| -rw-r--r-- | block/blk-mq.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h index cc67b48e3551..558df56544d2 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -56,11 +56,6 @@ void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, bool at_head); void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx, struct list_head *list); -/* - * CPU hotplug helpers - */ -void blk_mq_enable_hotplug(void); -void blk_mq_disable_hotplug(void); /* * CPU -> queue mappings |