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
..
partitions	Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block	2015-02-12 14:13:23 -08:00
bio-integrity.c	block: fix regression where bio_integrity_process uses wrong bio_vec iterator	2014-12-02 08:15:21 -07:00
bio.c	bio: skip atomic inc/dec of ->bi_cnt for most use cases	2015-05-05 13:32:49 -06:00
blk-cgroup.c	blkcg: remove blkcg->id	2014-09-08 09:55:37 -06:00
blk-cgroup.h	blkcg: remove blkcg->id	2014-09-08 09:55:37 -06:00
blk-core.c	blk-mq: make plug work for mutiple disks and queues	2015-05-08 14:17:23 -06:00
blk-exec.c	block: move PM request support to IDE	2015-05-05 13:40:42 -06:00
blk-flush.c	blk-mq: support per-distpatch_queue flush machinery	2014-09-25 15:22:45 -06:00
blk-integrity.c	block: Don't merge requests if integrity flags differ	2014-09-27 09:14:57 -06:00
blk-ioc.c	block: Substitute rcu_access_pointer() for rcu_dereference_raw()	2014-02-18 12:21:26 -08:00
blk-iopoll.c	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
blk-lib.c	block: Quiesce zeroout wrapper	2015-02-05 10:14:54 -07:00
blk-map.c	blk_rq_map_user(): use import_single_range()	2015-04-11 22:27:13 -04:00
blk-merge.c	Fix bug in blk_rq_merge_ok	2015-03-20 08:50:41 -06:00
blk-mq-cpu.c	blk-mq: add file comments and update copyright notices	2014-05-28 10:15:41 -06:00
blk-mq-cpumap.c	blk-mq: Use all available hardware queues	2014-12-09 09:08:21 -07:00
blk-mq-sysfs.c	blk-mq: add blk_mq_init_allocated_queue and export blk_mq_register_disk	2015-03-13 08:26:53 -06:00
blk-mq-tag.c	blkmq: Fix NULL pointer deref when all reserved tags in	2015-03-18 17:06:18 -06:00
blk-mq-tag.h	blk-mq: add tag allocation policy	2015-01-23 14:18:00 -07:00
blk-mq.c	blk-mq: make plug work for mutiple disks and queues	2015-05-08 14:17:23 -06:00
blk-mq.h	blk-mq: release mq's kobjects in blk_release_queue()	2015-01-29 08:30:51 -08:00
blk-settings.c	block: fix blk_stack_limits() regression due to lcm() change	2015-03-31 09:45:50 -06:00
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	blk-mq: release mq's kobjects in blk_release_queue()	2015-01-29 08:30:51 -08:00
blk-tag.c	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
blk-throttle.c	blk-throttle: check stats_cpu before reading it from sysfs	2015-02-20 22:11:58 -08:00
blk-timeout.c	blk-mq: Allow requests to never expire	2015-01-08 08:59:01 -07:00
blk.h	blk-mq: make plug work for mutiple disks and queues	2015-05-08 14:17:23 -06:00
bounce.c	mm: convert some level-less printks to pr_*	2014-06-06 16:08:18 -07:00
bsg-lib.c	bsg: Remove unused function bsg_goose_queue()	2012-12-06 14:33:02 +01:00
bsg.c	block: Simplify bsg complete all	2015-02-04 09:57:52 -07:00
cfq-iosched.c	cfq-iosched: handle failure of cfq group allocation	2015-02-09 10:22:39 -07:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	block, bdi: an active gendisk always has a request_queue associated with it	2014-09-08 10:00:35 -06:00
deadline-iosched.c	block: Stop abusing csd.list for fifo_time	2014-02-24 14:46:32 -08:00
elevator.c	block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM	2014-12-04 01:00:23 +01:00
genhd.c	genhd: check for int overflow in disk_expand_part_tbl()	2014-11-19 13:09:07 -07:00
ioctl.c	block: Add discard flag to blkdev_issue_zeroout() function	2015-01-21 10:41:46 -07:00
ioprio.c	block: Fix computation of merged request priority	2014-10-31 08:30:43 -06:00
Kconfig	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
Kconfig.iosched	blkcg: make CONFIG_BLK_CGROUP bool	2012-03-06 21:27:21 +01:00
Makefile	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
noop-iosched.c	elevator: Fix a race in elevator switching	2013-07-03 13:25:24 +02:00
partition-generic.c	block: Fix dev_t minor allocation lifetime	2014-09-03 15:01:02 -06:00
scsi_ioctl.c	sg_io(): use import_iovec()	2015-04-11 22:27:13 -04:00
t10-pi.c	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00