Ming Lei a1c735fb79 blk-mq: make sure that correct hctx->next_cpu is set ...

From commit 20e4d81393196 (blk-mq: simplify queue mapping & schedule
with each possisble CPU), one hctx can be mapped from all offline CPUs,
then hctx->next_cpu can be set as wrong.

This patch fixes this issue by making hctx->next_cpu pointing to the
first CPU in hctx->cpumask if all CPUs in hctx->cpumask are offline.

Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Fixes: 20e4d81393196 ("blk-mq: simplify queue mapping & schedule with each possisble CPU")
Cc: stable@vger.kernel.org
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2018-04-10 08:38:46 -06:00

..

partitions

partitions/msdos: Unable to mount UFS 44bsd partitions

2018-01-10 09:12:16 -07:00

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

for-4.17/block-20180402

2018-04-05 14:27:02 -07:00

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

block: switch bios to blk_status_t

2017-06-09 09:27:32 -06:00

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: map queues to all present CPUs

2017-07-24 10:01:31 -06:00

blk-mq-debugfs.c

blk-mq-debugfs: Show more request state information

2018-03-17 14:41:17 -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: provide a default queue mapping for virtio device

2017-02-27 20:54:05 +02:00

blk-mq.c

blk-mq: make sure that correct hctx->next_cpu is set

2018-04-10 08:38:46 -06:00

blk-mq.h

blk-mq: Rename blk_mq_request_direct_issue() into blk_mq_request_issue_directly()

2018-01-19 12:51:59 -07:00

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

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

kyber-iosched.c

block: kyber: fix domain token leak during requeue

2018-02-24 15:55:54 -07:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mq-deadline.c

mq-deadline: Make sure to always unlock zones

2018-03-01 08:39:24 -07:00

noop-iosched.c

block: move existing elevator ops to union

2017-01-17 10:03:33 -07:00

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