Hi Tejun,
On 05/23/2017 04:06 PM, Tejun Heo wrote:
Can you please see whether the following patch fixes the issue?
Thanks.
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index f6501f4f6040..9e29dba49d6c 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -176,9 +176,10 @@ typedef enum {
} cpuset_flagbits_t;
/* convenient tests for these bits */
-static inline bool is_cpuset_online(const struct cpuset *cs)
+static inline bool is_cpuset_online(struct cpuset *cs)
{
- return test_bit(CS_ONLINE, &cs->flags);
+ return test_bit(CS_ONLINE, &cs->flags) &&
+ !percpu_ref_is_dying(&cs->css.refcnt);
}
static inline int is_cpu_exclusive(const struct cpuset *cs)
That does the trick, thanks.
Please let me know if there's anything else I can do to help.
Daniel
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