Tetsuo Handa 43626dade3 cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all() ... syzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning at cpuset_attach() [1], for commit 4f7e723643 ("cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock") missed that cpuset_attach() is also called from cgroup_attach_task_all(). Add cpus_read_lock() like what cgroup_procs_write_start() does. Link: https://syzkaller.appspot.com/bug?extid=29d3a3b4d86c8136ad9e [1] Reported-by: syzbot <syzbot+29d3a3b4d86c8136ad9e@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Fixes: 4f7e723643 ("cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock") Signed-off-by: Tejun Heo <tj@kernel.org>		2022-08-25 07:36:30 -10:00
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cgroup-internal.h	cgroup: Make !percpu threadgroup_rwsem operations optional	2022-07-23 04:29:02 -10:00
cgroup-v1.c	cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()	2022-08-25 07:36:30 -10:00
cgroup.c	cgroup: Fix race condition at rebind_subsystems()	2022-08-23 08:11:06 -10:00
cpuset.c	cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock	2022-08-17 07:36:05 -10:00
debug.c	kernel: cgroup: fix misuse of %x	2019-05-06 08:47:48 -07:00
freezer.c	cgroup: cleanup comments	2022-03-13 19:19:27 -10:00
legacy_freezer.c	cgroup: rename freezer.c into legacy_freezer.c	2019-04-19 11:26:48 -07:00
Makefile	cgroup: Add misc cgroup controller	2021-04-04 13:34:46 -04:00
misc.c	misc_cgroup: remove error log to avoid log flood	2021-09-20 07:35:38 -10:00
namespace.c	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
pids.c	clone3: allow spawning processes into cgroups	2020-02-12 17:57:51 -05:00
rdma.c	cgroup: fix spelling mistakes	2021-05-24 12:45:26 -04:00
rstat.c	sched/core: add forced idle accounting for cgroups	2022-07-04 09:23:07 +02:00