Shaohua Li
5b3f341f09
blk-mq: make plug work for mutiple disks and queues ...
Last patch makes plug work for multiple queue case. However it only
works for single disk case, because it assumes only one request in the
plug list. If a task is accessing multiple disks, eg MD/DM, the
assumption is wrong. Let blk_attempt_plug_merge() record request from
the same queue.
V2: use NULL parameter in !mq case. Fix a bug. Add comments in
blk_attempt_plug_merge to make it less (hopefully) confusion.
Cc: Jens Axboe <axboe@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-05-08 14:17:23 -06:00
Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block
2015-02-12 14:13:23 -08:00
block: fix regression where bio_integrity_process uses wrong bio_vec iterator
2014-12-02 08:15:21 -07:00
bio: skip atomic inc/dec of ->bi_cnt for most use cases
2015-05-05 13:32:49 -06:00
blkcg: remove blkcg->id
2014-09-08 09:55:37 -06:00
blkcg: remove blkcg->id
2014-09-08 09:55:37 -06:00
blk-mq: make plug work for mutiple disks and queues
2015-05-08 14:17:23 -06:00
block: move PM request support to IDE
2015-05-05 13:40:42 -06:00
blk-mq: support per-distpatch_queue flush machinery
2014-09-25 15:22:45 -06:00
block: Don't merge requests if integrity flags differ
2014-09-27 09:14:57 -06:00
block: Substitute rcu_access_pointer() for rcu_dereference_raw()
2014-02-18 12:21:26 -08:00
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
2014-06-03 12:57:53 -07:00
block: Quiesce zeroout wrapper
2015-02-05 10:14:54 -07:00
blk_rq_map_user(): use import_single_range()
2015-04-11 22:27:13 -04:00
Fix bug in blk_rq_merge_ok
2015-03-20 08:50:41 -06:00
blk-mq: add file comments and update copyright notices
2014-05-28 10:15:41 -06:00
blk-mq: Use all available hardware queues
2014-12-09 09:08:21 -07:00
blk-mq: add blk_mq_init_allocated_queue and export blk_mq_register_disk
2015-03-13 08:26:53 -06:00
blkmq: Fix NULL pointer deref when all reserved tags in
2015-03-18 17:06:18 -06:00
blk-mq: add tag allocation policy
2015-01-23 14:18:00 -07:00
blk-mq: make plug work for mutiple disks and queues
2015-05-08 14:17:23 -06:00
blk-mq: release mq's kobjects in blk_release_queue()
2015-01-29 08:30:51 -08:00
block: fix blk_stack_limits() regression due to lcm() change
2015-03-31 09:45:50 -06:00
block: fix regression with block enabled tagging
2014-04-09 21:54:06 -06:00
blk-mq: release mq's kobjects in blk_release_queue()
2015-01-29 08:30:51 -08:00
block: support different tag allocation policy
2015-01-23 14:15:46 -07:00
blk-throttle: check stats_cpu before reading it from sysfs
2015-02-20 22:11:58 -08:00
blk-mq: Allow requests to never expire
2015-01-08 08:59:01 -07:00
blk-mq: make plug work for mutiple disks and queues
2015-05-08 14:17:23 -06:00
mm: convert some level-less printks to pr_*
2014-06-06 16:08:18 -07:00
block: Simplify bsg complete all
2015-02-04 09:57:52 -07:00
cfq-iosched: handle failure of cfq group allocation
2015-02-09 10:22:39 -07:00
block: remove unrelated header files and export symbol
2014-01-21 20:18:26 -08:00
block, bdi: an active gendisk always has a request_queue associated with it
2014-09-08 10:00:35 -06:00
block: Stop abusing csd.list for fifo_time
2014-02-24 14:46:32 -08:00
block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-04 01:00:23 +01:00
genhd: check for int overflow in disk_expand_part_tbl()
2014-11-19 13:09:07 -07:00
block: Add discard flag to blkdev_issue_zeroout() function
2015-01-21 10:41:46 -07:00
block: Fix computation of merged request priority
2014-10-31 08:30:43 -06:00
block: Add T10 Protection Information functions
2014-09-27 09:14:59 -06:00
block: Add T10 Protection Information functions
2014-09-27 09:14:59 -06:00
block: Fix dev_t minor allocation lifetime
2014-09-03 15:01:02 -06:00
sg_io(): use import_iovec()
2015-04-11 22:27:13 -04:00
block: Add T10 Protection Information functions
2014-09-27 09:14:59 -06:00
5b3f341f09