forked from luck/tmp_suning_uos_patched
96b9c592de
A task should never enter the exit path with the task->frozen bit set. Any frozen task must enter the signal handling loop and the only way to escape is through cgroup_leave_frozen(true), which unconditionally drops the task->frozen bit. So it means that cgroyp_freezer_frozen_exit() has zero chances to be called and has to be removed. Let's put a WARN_ON_ONCE() instead of the cgroup_freezer_frozen_exit() call to catch any potential leak of the task's frozen bit. Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Roman Gushchin <guro@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
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.. | ||
cgroup-internal.h | ||
cgroup-v1.c | ||
cgroup.c | ||
cpuset.c | ||
debug.c | ||
freezer.c | ||
legacy_freezer.c | ||
Makefile | ||
namespace.c | ||
pids.c | ||
rdma.c | ||
rstat.c |