Messages in this thread | | | Date | Mon, 18 Feb 2013 12:24:11 +0200 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCH] cgroup: fail if monitored file and event_control are in different cgroup |
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On Mon, Feb 18, 2013 at 02:13:35PM +0800, Li Zefan wrote: > If we pass fd of memory.usage_in_bytes of cgroup A to cgroup.event_control > of cgroup B, then we won't get memory usage notification from A but B! > > What's worse, if A and B are in different mount hierarchy, we'll end up > accessing NULL pointer! > > Disallow this kind of invalid usage. > > Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
-- Kirill A. Shutemov
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