linux-stable/block
Ming Lei 6c97b28b01 blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!"
[ Upstream commit 27b13e209d ]

Inside blkg_for_each_descendant_pre(), both
css_for_each_descendant_pre() and blkg_lookup() requires RCU read lock,
and either cgroup_assert_mutex_or_rcu_locked() or rcu_read_lock_held()
is called.

Fix the warning by adding rcu read lock.

Reported-by: Changhui Zhong <czhong@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20231117023527.3188627-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-20 15:38:02 +01:00
..
partitions block: fix signed int overflow in Amiga partition support 2023-08-30 16:31:46 +02:00
badblocks.c
bfq-cgroup.c block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group() 2020-03-25 08:06:08 +01:00
bfq-iosched.c block, bfq: protect 'bfqd->queued' by 'bfqd->lock' 2022-11-10 17:46:54 +01:00
bfq-iosched.h block, bfq: fix use after free in bfq_bfqq_expire 2021-12-29 12:20:43 +01:00
bfq-wf2q.c block, bfq: fix use after free in bfq_bfqq_expire 2021-12-29 12:20:43 +01:00
bio-integrity.c block: bio-integrity: Copy flags when bio_integrity_payload is cloned 2023-03-11 16:31:33 +01:00
bio.c block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern 2022-06-06 08:24:21 +02:00
blk-cgroup.c bdi: use bdi_dev_name() to get device name 2021-08-08 08:54:29 +02:00
blk-core.c block: fix and cleanup bio_check_ro 2023-02-06 07:49:41 +01:00
blk-exec.c
blk-flush.c block: Fix fsync always failed if once failed 2022-03-08 19:04:08 +01:00
blk-integrity.c
blk-ioc.c block: Fix use-after-free issue accessing struct io_cq 2020-04-17 10:48:41 +02:00
blk-iolatency.c blk-iolatency: Fix inflight count imbalances and IO hangs on offline 2022-06-14 16:59:30 +02:00
blk-lib.c block: fix 32 bit overflow in __blkdev_issue_discard() 2020-02-01 09:37:12 +00:00
blk-map.c block: fix memleak when __blk_rq_map_user_iov() is failed 2020-01-12 12:17:22 +01:00
blk-merge.c block: don't merge across cgroup boundaries if blkcg is enabled 2022-04-15 14:14:41 +02:00
blk-mq-cpumap.c
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c block, scsi: Change the preempt-only flag into a counter 2019-08-04 09:30:57 +02:00
blk-mq-debugfs.h
blk-mq-pci.c
blk-mq-rdma.c
blk-mq-sched.c blk-mq: remove stale comment for blk_mq_sched_mark_restart_hctx 2023-03-11 16:31:33 +01:00
blk-mq-sched.h
blk-mq-sysfs.c blk-mq: fix possible memleak when register 'hctx' failed 2023-01-18 11:30:37 +01:00
blk-mq-tag.c
blk-mq-tag.h
blk-mq-virtio.c
blk-mq.c blk-mq: Swap two calls in blk_mq_exit_queue() 2021-05-22 10:59:46 +02:00
blk-mq.h blk-mq: free hw queue's resource in hctx's release handler 2019-09-16 08:22:13 +02:00
blk-rq-qos.c blk-wbt: fix performance regression in wbt scale_up/scale_down 2019-10-17 13:45:16 -07:00
blk-rq-qos.h blk-rq-qos: fix first node deletion of rq_qos_del() 2019-10-29 09:20:09 +01:00
blk-settings.c blk-settings: align max_sectors on "logical_block_size" boundary 2021-03-04 09:39:51 +01:00
blk-softirq.c
blk-stat.c
blk-stat.h
blk-sysfs.c block: don't delete queue kobject before its children 2022-04-15 14:14:43 +02:00
blk-tag.c
blk-throttle.c blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!" 2023-12-20 15:38:02 +01:00
blk-timeout.c
blk-wbt.c blk-wbt: make sure throttle is enabled properly 2021-07-20 16:15:48 +02:00
blk-wbt.h blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() 2021-07-20 16:15:48 +02:00
blk-zoned.c blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN 2021-09-22 11:47:57 +02:00
blk.h block: split .sysfs_lock into two locks 2021-03-04 09:39:30 +01:00
bounce.c
bsg-lib.c
bsg.c
cfq-iosched.c
cmdline-parser.c
compat_ioctl.c block/compat_ioctl: fix range check in BLKGETSIZE 2022-04-27 13:39:45 +02:00
deadline-iosched.c
elevator.c block/wbt: fix negative inflight counter when remove scsi device 2022-02-23 11:58:40 +01:00
genhd.c block: Suppress uevent for hidden device when removed 2021-03-30 14:36:59 +02:00
ioctl.c
ioprio.c block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2) 2021-12-14 10:18:07 +01:00
Kconfig
Kconfig.iosched
kyber-iosched.c
Makefile
mq-deadline.c block: mq-deadline: Fix queue restart handling 2019-10-07 18:57:19 +02:00
noop-iosched.c
opal_proto.h
partition-generic.c block: unhash blkdev part inode when the part is deleted 2023-01-18 11:29:59 +01:00
scsi_ioctl.c
sed-opal.c block: sed-opal: kmalloc the cmd/resp buffers 2022-11-25 17:40:23 +01:00
t10-pi.c