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Ming Lei a023162818 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 15:32:35 +01:00
Documentation Documentation: security-bugs.rst: update preferences when dealing with the linux-distros group 2023-08-11 11:33:53 +02:00
arch KVM: s390/mm: Properly reset no-dat 2023-12-13 16:46:17 +01:00
block blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!" 2023-12-20 15:32:35 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-25 11:46:44 +02:00
crypto crypto: pcrypt - Fix hungtask for PADATA_RESET 2023-11-28 16:45:43 +00:00
drivers qed: Fix a potential use-after-free in qed_cxt_tables_alloc 2023-12-20 15:32:33 +01:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:20:30 +01:00
fs nilfs2: fix missing error check for sb_set_blocksize call 2023-12-13 16:46:17 +01:00
include cred: switch to using atomic_long_t 2023-12-20 15:32:35 +01:00
init init, x86: Move mem_encrypt_init() into arch_cpu_finalize_init() 2023-08-08 19:48:24 +02:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:16:33 +01:00
kernel cred: switch to using atomic_long_t 2023-12-20 15:32:35 +01:00
lib kobject: Fix slab-out-of-bounds in fill_kobj_path() 2023-11-08 11:21:07 +01:00
mm treewide: Remove uninitialized_var() usage 2023-08-11 11:33:32 +02:00
net appletalk: Fix Use-After-Free in atalk_ioctl 2023-12-20 15:32:34 +01:00
samples samples/kretprobes: Fix return value if register_kretprobe() failed 2021-11-26 11:40:31 +01:00
scripts sign-file: Fix incorrect return values check 2023-12-20 15:32:34 +01:00
security smackfs: Prevent underflow in smk_set_cipso() 2023-09-23 10:46:56 +02:00
sound ALSA: pcm: fix out-of-bounds in snd_pcm_state_names 2023-12-13 16:46:16 +01:00
tools selftests/efivarfs: create-read: fix a resource leak 2023-11-28 16:45:43 +00:00
usr initramfs: restore default compression behavior 2020-04-13 10:34:19 +02:00
virt KVM: arm64: vgic: Fix exit condition in scan_its_table() 2022-11-03 23:50:50 +09:00
.cocciconfig
…
.get_maintainer.ignore
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.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
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CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS Remove DECnet support from kernel 2023-06-21 15:38:58 +02:00
Makefile Linux 4.14.333 2023-12-13 16:46:18 +01:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.