cgroup: introduce cgroup_ino()
mm/memory-failure.c::hwpoison_filter_task() has been reaching into cgroup to extract the associated ino to be used as a filtering criterion. This is an implementation detail which shouldn't be depended upon from outside cgroup proper and is about to change with the scheduled kernfs conversion. This patch introduces a proper interface to determine the associated ino, cgroup_ino(), and updates hwpoison_filter_task() to use it instead of reaching directly into cgroup. Signed-off-by:Tejun Heo <tj@kernel.org> Acked-by:
Li Zefan <lizefan@huawei.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Wu Fengguang <fengguang.wu@intel.com>
parent
2da440a2
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