Chen Ridong 48f35a3294 cgroup,freezer: fix incomplete freezing when attaching tasks ... commit 37fb58a727 upstream. An issue was found: # cd /sys/fs/cgroup/freezer/ # mkdir test # echo FROZEN > test/freezer.state # cat test/freezer.state FROZEN # sleep 1000 & [1] 863 # echo 863 > test/cgroup.procs # cat test/freezer.state FREEZING When tasks are migrated to a frozen cgroup, the freezer fails to immediately freeze the tasks, causing the cgroup to remain in the "FREEZING". The freeze_task() function is called before clearing the CGROUP_FROZEN flag. This causes the freezing() check to incorrectly return false, preventing __freeze_task() from being invoked for the migrated task. To fix this issue, clear the CGROUP_FROZEN state before calling freeze_task(). Fixes: f5d39b0208 ("freezer,sched: Rewrite core freezer logic") Cc: stable@vger.kernel.org # v6.1+ Reported-by: Zhong Jiawei <zhongjiawei1@huawei.com> Signed-off-by: Chen Ridong <chenridong@huawei.com> Acked-by: Michal Koutný <mkoutny@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-06-27 11:08:47 +01:00
..
cgroup-internal.h	cgroup: Make operations on the cgroup root_list RCU safe	2024-08-19 06:04:25 +02:00
cgroup-v1.c	kernfs: Convert kernfs_path_from_node_locked() from strlcpy() to strscpy()	2024-08-03 08:53:21 +02:00
cgroup.c	cgroup: Fix compilation issue due to cgroup_mutex not being exported	2025-06-04 14:41:53 +02:00
cpuset.c	cgroup/cpuset: Extend kthread_is_per_cpu() check to all PF_NO_SETAFFINITY tasks	2025-05-22 14:12:12 +02:00
debug.c
freezer.c
legacy_freezer.c	cgroup,freezer: fix incomplete freezing when attaching tasks	2025-06-27 11:08:47 +01:00
Makefile
misc.c	cgroup/misc: Store atomic64_t reads to u64	2023-07-21 08:10:06 -10:00
namespace.c	cgroup:namespace: Remove unused cgroup_namespaces_init()	2023-08-14 14:29:47 -10:00
pids.c
rdma.c	rdmacg: fix kernel-doc warnings in rdmacg	2023-06-05 09:45:14 -10:00
rstat.c	cgroup: Remove steal time from usage_usec	2025-02-21 13:57:08 +01:00