Ming Lei 2434af79c8 blk-mq: Revert "blk-mq: reimplement blk_mq_hw_queue_mapped" ... This reverts commit 127276c6ce. When all CPUs of one hw queue become offline, there still may have IOs not completed from this hctx. But blk_mq_hw_queue_mapped() is called in blk_mq_queue_tag_busy_iter(), which is used for iterating request in timeout handler, timeout event will be missed on the inactive hctx, then request may never be completed. Also the replementation of blk_mq_hw_queue_mapped() doesn't match the helper's name any more, and it should have been named as blk_mq_hw_queue_active(). Even other callers need further verification about this reimplemenation. So revert this patch now, and we can improve hw queue activate/inactivate event after adequent researching and test. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christoph Hellwig <hch@lst.de> Reported-by: Jens Axboe <axboe@kernel.dk> Fixes: 127276c6ce ("blk-mq: reimplement blk_mq_hw_queue_mapped") Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2018-04-11 07:59:15 -06:00
..
partitions	partitions/msdos: Unable to mount UFS 44bsd partitions	2018-01-10 09:12:16 -07:00
Kconfig	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig.iosched	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
badblocks.c	badblocks: fix wrong return value in badblocks_set if badblocks are disabled	2017-11-03 11:29:50 -07:00
bfq-cgroup.c	block, bfq: put async queues for root bfq groups too	2018-01-09 08:45:25 -07:00
bfq-iosched.c	block, bfq: lower-bound the estimated peak rate to 1	2018-03-26 10:18:27 -06:00
bfq-iosched.h	block, bfq: lower-bound the estimated peak rate to 1	2018-03-26 10:18:27 -06:00
bfq-wf2q.c	block, bfq: limit sectors served with interactive weight raising	2018-01-18 08:21:37 -07:00
bio-integrity.c	block: Fix __bio_integrity_endio() documentation	2018-01-17 09:59:33 -07:00
bio.c	Fix slab name "biovec-(1<<(21-12))"	2018-03-21 19:25:22 -06:00
blk-cgroup.c	blk-throttle: fix race between blkcg_bio_issue_check() and cgroup_rmdir()	2018-03-16 10:35:12 -06:00
blk-core.c	blk-mq: Avoid that submitting a bio concurrently with device removal triggers a crash	2018-04-10 17:46:40 -06:00
blk-exec.c	blk-mq-sched: remove unused 'can_block' arg from blk_mq_sched_insert_request	2018-01-17 09:49:21 -07:00
blk-flush.c	blk-mq: don't allocate driver tag upfront for flush rq	2017-11-04 12:40:13 -06:00
blk-integrity.c	…
blk-ioc.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-lib.c	block: add bdev_read_only() checks to common helpers	2018-01-18 12:57:19 -07:00
blk-map.c	Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block	2018-01-29 11:51:49 -08:00
blk-merge.c	blk-mq: fix discard merge with scheduler attached	2018-02-01 14:01:02 -07:00
blk-mq-cpumap.c	blk-mq: don't keep offline CPUs mapped to hctx 0	2018-04-10 08:38:46 -06:00
blk-mq-debugfs.c	blk-mq: remove blk_mq_delay_queue()	2018-04-10 08:38:46 -06:00
blk-mq-debugfs.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-mq-pci.c	blk-mq: Allow PCI vector offset for mapping queues	2018-03-27 21:25:36 -06:00
blk-mq-rdma.c	block: Add rdma affinity based queue mapping helper	2017-08-08 14:58:03 -04:00
blk-mq-sched.c	blk-mq-sched: Enable merging discard bio into request	2018-02-01 14:45:11 -07:00
blk-mq-sched.h	blk-mq-sched: remove unused 'can_block' arg from blk_mq_sched_insert_request	2018-01-17 09:49:21 -07:00
blk-mq-sysfs.c	block: properly protect the 'queue' kobj in blk_unregister_queue	2018-01-15 08:41:38 -07:00
blk-mq-tag.c	blk-mq: improve heavily contended tag case	2017-12-22 11:09:37 -07:00
blk-mq-tag.h	Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block	2017-11-14 15:32:19 -08:00
blk-mq-virtio.c	…
blk-mq.c	blk-mq: remove code for dealing with remapping queue	2018-04-10 08:38:46 -06:00
blk-mq.h	blk-mq: Revert "blk-mq: reimplement blk_mq_hw_queue_mapped"	2018-04-11 07:59:15 -06:00
blk-settings.c	block: Introduce blk_queue_flag_{set,clear,test_and_{set,clear}}()	2018-03-08 14:13:48 -07:00
blk-softirq.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-stat.c	block: Protect queue flag changes with the queue lock	2018-03-08 14:13:48 -07:00
blk-stat.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-sysfs.c	block: Introduce blk_queue_flag_{set,clear,test_and_{set,clear}}()	2018-03-08 14:13:48 -07:00
blk-tag.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-throttle.c	Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block	2018-01-29 11:51:49 -08:00
blk-timeout.c	blk-mq: Directly schedule q->timeout_work when aborting a request	2018-04-02 16:36:13 -06:00
blk-wbt.c	blk-wbt: account flush requests correctly	2018-02-06 14:14:03 -07:00
blk-wbt.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-zoned.c	block: Suppress kernel-doc warnings triggered by blk-zoned.c	2018-03-09 08:23:32 -07:00
blk.h	block: Move the queue_flag_*() functions from a public into a private header file	2018-03-08 14:13:48 -07:00
bounce.c	treewide: simplify Kconfig dependencies for removed archs	2018-03-26 15:55:57 +02:00
bsg-lib.c	bsg: split handling of SCSI CDBs vs transport requeues	2018-03-13 11:40:24 -06:00
bsg.c	bsg: split handling of SCSI CDBs vs transport requeues	2018-03-13 11:40:24 -06:00
cfq-iosched.c	block/cfq: cache rightmost rb_node	2017-09-08 18:26:49 -07:00
cmdline-parser.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
compat_ioctl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
deadline-iosched.c	deadline-iosched: Introduce zone locking support	2018-01-05 09:22:17 -07:00
elevator.c	block: Document scheduler modification locking requirements	2018-01-18 12:54:42 -07:00
genhd.c	block, char_dev: Use correct format specifier for unsigned ints	2018-03-15 17:59:24 +01:00
ioctl.c	block: pass inclusive 'lend' parameter to truncate_inode_pages_range	2018-02-23 15:20:19 -07:00
ioprio.c	block: Add fallthrough markers to switch statements	2017-06-21 11:46:07 -06:00
kyber-iosched.c	block: kyber: fix domain token leak during requeue	2018-02-24 15:55:54 -07:00
mq-deadline.c	mq-deadline: Make sure to always unlock zones	2018-03-01 08:39:24 -07:00
noop-iosched.c	…
opal_proto.h	block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled	2017-09-11 09:45:52 -06:00
partition-generic.c	block: display the correct diskname for bio	2018-03-01 08:41:25 -07:00
scsi_ioctl.c	block: silently forbid sending any ioctl to a partition	2018-01-10 12:30:37 -07:00
sed-opal.c	for-4.17/block-20180402	2018-04-05 14:27:02 -07:00
t10-pi.c	t10-pi: Move opencoded contants to common header	2017-07-03 16:56:25 -06:00