WSL2-Linux-Kernel/block
Yu Kuai 4302806dbf block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
commit 181490d532 upstream.

If bfq_schedule_dispatch() is called from bfq_idle_slice_timer_body(),
then 'bfqd->queued' is read without holding 'bfqd->lock'. This is
wrong since it can be wrote concurrently.

Fix the problem by holding 'bfqd->lock' in such case.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220513023507.2625717-2-yukuai3@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Khazhy Kumykov <khazhy@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-10 18:15:37 +01:00
..
partitions block: drop unused includes in <linux/genhd.h> 2022-03-16 14:23:46 +01:00
Kconfig
Kconfig.iosched
Makefile
badblocks.c
bdev.c block: simplify the block device syncing code 2022-04-27 14:38:50 +02:00
bfq-cgroup.c bfq: Make sure bfqg for which we are queueing requests is online 2022-06-09 10:23:19 +02:00
bfq-iosched.c block, bfq: protect 'bfqd->queued' by 'bfqd->lock' 2022-11-10 18:15:37 +01:00
bfq-iosched.h bfq: Get rid of __bio_blkcg() usage 2022-06-09 10:23:19 +02:00
bfq-wf2q.c block/bfq_wf2q: correct weight to ioprio 2022-04-08 14:23:55 +02:00
bio-integrity.c block: bio-integrity: Advance seed correctly for larger interval sizes 2022-02-08 18:34:05 +01:00
bio.c block: ensure iov_iter advances for added pages 2022-08-17 14:24:01 +02:00
blk-cgroup-rwstat.c
blk-cgroup-rwstat.h
blk-cgroup.c block: fix bio_clone_blkg_association() to associate with proper blkcg_gq 2022-06-09 10:23:32 +02:00
blk-core.c block: blk_queue_enter() / __bio_queue_enter() must return -EAGAIN for nowait 2022-09-23 14:15:48 +02:00
blk-crypto-fallback.c
blk-crypto-internal.h
blk-crypto.c
blk-exec.c
blk-flush.c block: Fix fsync always failed if once failed 2022-01-27 11:05:25 +01:00
blk-integrity.c
blk-ioc.c block: fix default IO priority handling again 2022-08-11 13:07:50 +02:00
blk-iocost.c block: don't allow the same type rq_qos add more than once 2022-08-17 14:24:24 +02:00
blk-iolatency.c block: don't allow the same type rq_qos add more than once 2022-08-17 14:24:24 +02:00
blk-ioprio.c
blk-ioprio.h
blk-lib.c
blk-map.c block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern 2022-03-08 19:12:31 +01:00
blk-merge.c block: don't merge across cgroup boundaries if blkcg is enabled 2022-04-08 14:22:59 +02:00
blk-mq-cpumap.c
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c blk-mq: don't create hctx debugfs dir until q->debugfs_dir is created 2022-08-17 14:23:12 +02:00
blk-mq-debugfs.h
blk-mq-pci.c
blk-mq-rdma.c
blk-mq-sched.c block: limit request dispatch loop duration 2022-04-08 14:22:59 +02:00
blk-mq-sched.h
blk-mq-sysfs.c
blk-mq-tag.c
blk-mq-tag.h
blk-mq-virtio.c
blk-mq.c blk-mq: fix io hung due to missing commit_rqs 2022-08-31 17:16:50 +02:00
blk-mq.h
blk-pm.c scsi: block: pm: Always set request queue runtime active in blk_post_runtime_resume() 2022-01-27 11:04:15 +01:00
blk-pm.h
blk-rq-qos.c
blk-rq-qos.h block: don't allow the same type rq_qos add more than once 2022-08-17 14:24:24 +02:00
blk-settings.c
blk-stat.c
blk-stat.h
blk-sysfs.c block: don't delete queue kobject before its children 2022-04-08 14:23:07 +02:00
blk-throttle.c blk-throttle: prevent overflow while calculating wait time 2022-10-26 12:35:47 +02:00
blk-timeout.c
blk-wbt.c blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init() 2022-10-26 12:35:54 +02:00
blk-wbt.h
blk-zoned.c
blk.h
bounce.c
bsg-lib.c
bsg.c
disk-events.c
elevator.c block/wbt: fix negative inflight counter when remove scsi device 2022-02-23 12:03:15 +01:00
fops.c
genhd.c block: Fix possible memory leak for rq_wb on add_disk failure 2022-11-10 18:15:36 +01:00
holder.c block: drop unused includes in <linux/genhd.h> 2022-03-16 14:23:46 +01:00
ioctl.c block/compat_ioctl: fix range check in BLKGETSIZE 2022-04-27 14:39:02 +02:00
ioprio.c block: fix default IO priority handling again 2022-08-11 13:07:50 +02:00
keyslot-manager.c
kyber-iosched.c
mq-deadline.c block: fix async_depth sysfs interface for mq-deadline 2022-01-27 11:05:25 +01:00
opal_proto.h
sed-opal.c
t10-pi.c