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Yu Kuai 7a5dc0f4bc blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init() 
commit 285febabac upstream.

commit 8c5035dfbb ("blk-wbt: call rq_qos_add() after wb_normal is
initialized") moves wbt_set_write_cache() before rq_qos_add(), which
is wrong because wbt_rq_qos() is still NULL.

Fix the problem by removing wbt_set_write_cache() and setting 'rwb->wc'
directly. Noted that this patch also remove the redundant setting of
'rab->wc'.

Fixes: 8c5035dfbb ("blk-wbt: call rq_qos_add() after wb_normal is initialized")
Reported-by: kernel test robot <yujie.liu@intel.com>
Link: https://lore.kernel.org/r/202210081045.77ddf59b-yujie.liu@intel.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20221009101038.1692875-1-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2022-10-24 09:58:30 +02:00
..
partitions block: don't add partitions if GD_SUPPRESS_PART_SCAN is set 2022-09-15 10:47:15 +02:00
Kconfig block: add pi for extended integrity 2022-03-07 12:48:35 -07:00
Kconfig.iosched block: only build the icq tracking code when needed 2021-12-16 10:59:02 -07:00
Makefile blk-cgroup: move blkcg_{get,set}_fc_appid out of line 2022-05-02 14:06:20 -06:00
badblocks.c block/badblocks: Remove redundant assignments 2022-04-23 07:15:26 -06:00
bdev.c Description for this pull request: 2022-05-24 18:30:27 -07:00
bfq-cgroup.c bfq: Make sure bfqg for which we are queueing requests is online 2022-04-17 19:34:32 -06:00
bfq-iosched.c block/bfq: Enable I/O statistics 2022-06-16 16:59:28 -06:00
bfq-iosched.h bfq: Relax waker detection for shared queues 2022-05-19 06:52:33 -06:00
bfq-wf2q.c block, bfq: cleanup bfq_bfqq_to_bfqg() 2022-02-18 06:13:00 -07:00
bio-integrity.c for-5.18/block-2022-03-18 2022-03-21 16:48:55 -07:00
bio.c blk-throttle: fix that io throttle can only work for single bio 2022-10-24 09:56:59 +02:00
blk-cgroup-fc-appid.c blk-cgroup: move blkcg_{get,set}_fc_appid out of line 2022-05-02 14:06:20 -06:00
blk-cgroup-rwstat.c
…
blk-cgroup-rwstat.h block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-cgroup.c block: fix bio_clone_blkg_association() to associate with proper blkcg_gq 2022-06-02 02:15:05 -06:00
blk-cgroup.h blk-cgroup: always terminate io.stat lines 2022-05-17 06:11:17 -06:00
blk-core.c block: simplify disk shutdown 2022-09-28 11:32:01 +02:00
blk-crypto-fallback.c block: remove superfluous calls to blkcg_bio_issue_init 2022-05-04 18:29:52 -06:00
blk-crypto-internal.h blk-crypto: show crypto capabilities in sysfs 2022-02-28 06:40:23 -07:00
blk-crypto-profile.c blk-crypto: remove blk_crypto_unregister() 2021-11-29 06:38:51 -07:00
blk-crypto-sysfs.c blk-crypto: show crypto capabilities in sysfs 2022-02-28 06:40:23 -07:00
blk-crypto.c blk-crypto: show crypto capabilities in sysfs 2022-02-28 06:40:23 -07:00
blk-flush.c block: pass a block_device and opf to bio_init 2022-02-02 07:49:59 -07:00
blk-ia-ranges.c block: remove queue from struct blk_independent_access_range 2022-06-19 18:40:11 -06:00
blk-integrity.c blk-crypto: remove blk_crypto_unregister() 2021-11-29 06:38:51 -07:00
blk-ioc.c block: fix default IO priority handling again 2022-08-11 13:22:02 +02:00
blk-iocost.c block: don't allow the same type rq_qos add more than once 2022-08-17 15:16:10 +02:00
blk-iolatency.c block: don't allow the same type rq_qos add more than once 2022-08-17 15:16:10 +02:00
blk-ioprio.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-ioprio.h
…
blk-lib.c blk-lib: fix blkdev_issue_secure_erase 2022-09-23 14:14:05 +02:00
blk-map.c block/blk-map: Remove redundant assignment 2022-04-23 07:15:26 -06:00
blk-merge.c block: fix missing blkcg_bio_issue_init 2022-07-14 10:54:49 -06:00
blk-mq-cpumap.c
…
blk-mq-debugfs-zoned.c
…
blk-mq-debugfs.c block: remove QUEUE_FLAG_DEAD 2022-09-28 11:32:00 +02:00
blk-mq-debugfs.h block: remove per-disk debugfs files in blk_unregister_queue 2022-06-17 07:31:05 -06:00
blk-mq-pci.c
…
blk-mq-rdma.c
…
blk-mq-sched.c block: serialize all debugfs operations using q->debugfs_mutex 2022-06-17 07:31:05 -06:00
blk-mq-sched.h block: move blk_mq_sched_assign_ioc to blk-ioc.c 2021-11-29 06:41:29 -07:00
blk-mq-sysfs.c blk-mq: prepare for implementing hctx table via xarray 2022-03-08 17:57:19 -07:00
blk-mq-tag.c block: remove useless BUG_ON() in blk_mq_put_tag() 2022-06-02 02:05:56 -06:00
blk-mq-tag.h blk-mq: Delete busy_iter_fn 2021-12-06 13:18:47 -07:00
blk-mq-virtio.c
…
blk-mq.c blk-mq: use quiesced elevator switch when reinitializing queues 2022-10-24 09:58:28 +02:00
blk-mq.h blk-mq: manage hctx map via xarray 2022-03-08 19:39:38 -07:00
blk-pm.c scsi: block: pm: Always set request queue runtime active in blk_post_runtime_resume() 2021-12-22 23:38:29 -05:00
blk-pm.h
…
blk-rq-qos.c block: remove per-disk debugfs files in blk_unregister_queue 2022-06-17 07:31:05 -06:00
blk-rq-qos.h block: don't allow the same type rq_qos add more than once 2022-08-17 15:16:10 +02:00
blk-settings.c block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD 2022-04-17 19:49:59 -06:00
blk-stat.c block: make queue stat accounting a reference 2021-12-14 17:23:05 -07:00
blk-stat.h block: make queue stat accounting a reference 2021-12-14 17:23:05 -07:00
blk-sysfs.c block: simplify disk shutdown 2022-09-28 11:32:01 +02:00
blk-throttle.c blk-throttle: prevent overflow while calculating wait time 2022-10-24 09:58:25 +02:00
blk-throttle.h blk-throttle: fix that io throttle can only work for single bio 2022-10-24 09:56:59 +02:00
blk-timeout.c
…
blk-wbt.c blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init() 2022-10-24 09:58:30 +02:00
blk-wbt.h blk-wbt: remove wbt_track stub 2022-03-31 12:58:38 -06:00
blk-zoned.c SCSI misc on 20220324 2022-03-24 19:37:53 -07:00
blk.h blk-mq: use quiesced elevator switch when reinitializing queues 2022-10-24 09:58:28 +02:00
bounce.c block: remove superfluous calls to blkcg_bio_issue_init 2022-05-04 18:29:52 -06:00
bsg-lib.c block: simplify disk shutdown 2022-09-28 11:32:01 +02:00
bsg.c scsi: bsg: Fix device unregistration 2021-09-14 00:22:15 -04:00
disk-events.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
elevator.c blk-mq: use quiesced elevator switch when reinitializing queues 2022-10-24 09:58:28 +02:00
elevator.h block: move elevator.h to block/ 2021-10-18 06:17:01 -06:00
fops.c Page cache changes for 5.19 2022-05-24 19:55:07 -07:00
genhd.c Revert "block: freeze the queue earlier in del_gendisk" 2022-09-28 11:32:28 +02:00
holder.c block: remove WARN_ON() from bd_link_disk_holder 2022-06-23 07:48:05 -06:00
ioctl.c block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD 2022-04-17 19:49:59 -06:00
ioprio.c block: fix default IO priority handling again 2022-08-11 13:22:02 +02:00
kyber-iosched.c blk-mq: avoid to touch q->elevator without any protection 2022-06-16 14:45:15 -06:00
mq-deadline.c blk-mq: avoid to touch q->elevator without any protection 2022-06-16 14:45:15 -06:00
opal_proto.h
…
sed-opal.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
t10-pi.c block: add pi for extended integrity 2022-03-07 12:48:35 -07:00