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Jianchao Wang d48ece209f blk-mq: init hctx sched after update ctx and hctx mapping 
Currently, when update nr_hw_queues, IO scheduler's init_hctx will
be invoked before the mapping between ctx and hctx is adapted
correctly by blk_mq_map_swqueue. The IO scheduler init_hctx (kyber)
may depend on this mapping and get wrong result and panic finally.
A simply way to fix this is that switch the IO scheduler to 'none'
before update the nr_hw_queues, and then switch it back after
update nr_hw_queues. blk_mq_sched_init_/exit_hctx are removed due
to nobody use them any more.

Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-08-21 09:02:55 -06:00
..
partitions
partitions/aix: append null character to print data from disk
2018-07-27 09:17:41 -06:00
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: return nbytes and not zero from struct cftype .write() method
2018-08-16 13:11:16 -06:00
bfq-iosched.c
block, bfq: reduce write overcharge
2018-08-16 13:08:13 -06:00
bfq-iosched.h
block, bfq: add/remove entity weights correctly
2018-07-09 09:07:52 -06:00
bfq-wf2q.c
block, bfq: improve code of bfq_bfqq_charge_time
2018-08-16 13:08:15 -06:00
bio-integrity.c
block: move bio_integrity_{intervals,bytes} into blkdev.h
2018-07-26 15:49:41 -06:00
bio.c
block: bvec_nr_vecs() returns value for wrong slab
2018-08-09 08:25:04 -06:00
blk-cgroup.c
blk-cgroup: hold the queue ref during throttling
2018-08-01 09:16:03 -06:00
blk-core.c
block: remove duplicate initialization
2018-08-17 12:33:36 -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
block: fix use-after-free in block flush handling
2018-06-09 06:37:14 -06:00
blk-integrity.c
block drivers/block: Use octal not symbolic permissions
2018-05-24 13:38:59 -06:00
blk-ioc.c
block, mm: remove unnecessary __GFP_HIGH flag
2018-07-09 09:07:54 -06:00
blk-iolatency.c
block: make iolatency avg_lat exponentially decay
2018-08-02 09:58:14 -06:00
blk-lib.c
block: fix infinite loop if the device loses discard capability
2018-07-09 09:07:54 -06:00
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
block: don't use blocking queue entered for recursive bio submits
2018-06-02 20:35:00 -06:00
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-zoned.c
block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n
2018-07-09 09:07:52 -06:00
blk-mq-debugfs.c
blk-mq: dequeue request one by one from sw queue if hctx is busy
2018-07-09 09:07:53 -06:00
blk-mq-debugfs.h
block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n
2018-07-09 09:07:52 -06:00
blk-mq-pci.c
blk-mq: code clean-up by adding an API to clear set->mq_map
2018-07-09 09:07:53 -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: init hctx sched after update ctx and hctx mapping
2018-08-21 09:02:55 -06:00
blk-mq-sched.h
blk-mq: init hctx sched after update ctx and hctx mapping
2018-08-21 09:02:55 -06:00
blk-mq-sysfs.c
block drivers/block: Use octal not symbolic permissions
2018-05-24 13:38:59 -06:00
blk-mq-tag.c
blk-mq: count the hctx as active before allocating tag
2018-08-09 08:34:17 -06:00
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: init hctx sched after update ctx and hctx mapping
2018-08-21 09:02:55 -06:00
blk-mq.h
blk-mq: issue directly if hw queue isn't busy in case of 'none'
2018-07-17 16:04:00 -06:00
blk-rq-qos.c
blk-rq-qos: make depth comparisons unsigned
2018-07-22 11:30:53 -06:00
blk-rq-qos.h
blk-rq-qos: make depth comparisons unsigned
2018-07-22 11:30:53 -06:00
blk-settings.c
block: allow max_discard_segments to be stacked
2018-07-24 14:46:39 -06:00
blk-softirq.c
block: fix timeout changes for legacy request drivers
2018-06-19 11:27:18 -06:00
blk-stat.c
blk-stat: export helpers for modifying blk_rq_stat
2018-07-09 09:07:54 -06:00
blk-stat.h
blk-stat: export helpers for modifying blk_rq_stat
2018-07-09 09:07:54 -06:00
blk-sysfs.c
blkcg: Make blkg_root_lookup() work for queues in bypass mode
2018-08-11 15:41:25 -06:00
blk-tag.c
for-linus-20180616
2018-06-17 05:37:55 +09:00
blk-throttle.c
Blk-throttle: reduce tail io latency when iops limit is enforced
2018-08-09 12:43:16 -06:00
blk-timeout.c
blk-mq: Fix timeout handling in case the timeout handler returns BLK_EH_DONE
2018-06-23 10:25:45 -06:00
blk-wbt.c
blk-wbt: fix IO hang in wbt_wait()
2018-08-14 11:05:52 -06:00
blk-wbt.h
block: remove external dependency on wbt_flags
2018-07-09 09:07:54 -06:00
blk-zoned.c
block: Remove a superfluous cast from blkdev_report_zones()
2018-07-09 09:07:52 -06:00
blk.h
blk-mq: init hctx sched after update ctx and hctx mapping
2018-08-21 09:02:55 -06:00
bounce.c
block: unexport bio_clone_bioset
2018-07-24 14:43:26 -06:00
bsg-lib.c
block/bsg-lib: use PTR_ERR_OR_ZERO to simplify the flow path
2018-08-01 09:13:03 -06:00
bsg.c
Linux 4.18-rc6
2018-08-05 19:32:09 -06:00
cfq-iosched.c
cfq: Suppress compiler warnings about comparisons
2018-08-07 17:57:13 -06:00
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
block drivers/block: Use octal not symbolic permissions
2018-05-24 13:38:59 -06:00
elevator.c
blk-mq: init hctx sched after update ctx and hctx mapping
2018-08-21 09:02:55 -06:00
genhd.c
block: Track DISCARD statistics and output them in stat and diskstat
2018-07-18 08:44:22 -06:00
ioctl.c
block: pass inclusive 'lend' parameter to truncate_inode_pages_range
2018-02-23 15:20:19 -07:00
ioprio.c
block: add ioprio_check_cap function
2018-05-31 10:50:54 -04:00
Kconfig
block: introduce blk-iolatency io controller
2018-07-09 09:07:54 -06:00
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: make kyber more friendly with merging
2018-05-30 10:47:40 -06:00
Makefile
block: introduce blk-iolatency io controller
2018-07-09 09:07:54 -06:00
mq-deadline.c
block drivers/block: Use octal not symbolic permissions
2018-05-24 13:38:59 -06:00
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: Track DISCARD statistics and output them in stat and diskstat
2018-07-18 08:44:22 -06:00
scsi_ioctl.c
block: consistently use GFP_NOIO instead of __GFP_NORECLAIM
2018-05-14 08:55:18 -06:00
sed-opal.c
block: sed-opal: Fix a couple off by one bugs
2018-06-20 12:04:06 -06:00
t10-pi.c
block: move dif_prepare/dif_complete functions to block layer
2018-07-30 08:27:02 -06:00