mm: showmem: make the notifiers atomic
There are places in kernel like the lowmemorykiller which invokes show_mem_call_notifiers from an atomic context. So move from a blocking notifier to atomic. At present the notifier callbacks does not call sleeping functions, but it should be made sure, it does not happen in future also. Change-Id: I9668e67463ab8a6a60be55dbc86b88f45be8b041 Signed-off-by:Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by:
Patrick Daly <pdaly@codeaurora.org> [swatsrid@codeaurora.org: Fix merge conflicts] Signed-off-by:
Swathi Sridhar <swatsrid@codeaurora.org>
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