4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Waiman Long <longman@xxxxxxxxxx> commit 1c08c22c874ac88799cab1f78c40f46110274915 upstream. The memory_pressure control file was incorrectly set up without a private value (0, by default). As a result, this control file was treated like memory_migrate on read. By adding back the FILE_MEMORY_PRESSURE private value, the correct memory pressure value will be returned. Signed-off-by: Waiman Long <longman@xxxxxxxxxx> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> Fixes: 7dbdb199d3bf ("cgroup: replace cftype->mode with CFTYPE_WORLD_WRITABLE") Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- kernel/cpuset.c | 1 + 1 file changed, 1 insertion(+) --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1910,6 +1910,7 @@ static struct cftype files[] = { { .name = "memory_pressure", .read_u64 = cpuset_read_u64, + .private = FILE_MEMORY_PRESSURE, }, {