On Mon, Feb 20, 2023 at 11:16:38PM +0800, Yue Zhao wrote: > The knob for cgroup v2 memory controller: memory.oom.group > will be read and written simultaneously by user space > programs, thus we'd better change memcg->oom_group access > with atomic operations to avoid concurrency problems. > > Signed-off-by: Yue Zhao <findns94@xxxxxxxxx> Hi Yue! I'm curious, have any seen any real issues which your patch is solving? Can you, please, provide a bit more details. Also, WRITE/READ_ONCE() don't generally make operations atomic, they only prevent the compiler from merging and re-fetching reads and writes. Thanks!
