Re: [PATCH] mm/mmu_notifier: Remove non_block_start/end() from notifier invocation

Michal Hocko <[email protected]>
Newsgroups dev.linux.lists.linux-rt-devel,org.kernel.vger.kvm,org.kernel.vger.linux-kernel,org.kvack.linux-mm
Message-ID <anwraNIKJV8zwrNT@tiehlicka> 
On Tue 11-08-26 16:24:48, David Woodhouse wrote:
[...]
> I had a second reason for disabling the overzealous check too: to allow
> SRCU grace periods within the notifier callbacks.

Is there a way that srcu barrier could cause an indirect dependency on
memory allocation? In other words what might block the scru to complete?

-- 
Michal Hocko
SUSE Labs
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