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Date: Fri, 1 Aug 2014 09:34:44 -0400 From: Johannes Weiner <hannes@...xchg.org> To: David Rientjes <rientjes@...gle.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>, Rik van Riel <riel@...hat.com>, linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: Re: [patch 2/3] mm, oom: remove unnecessary check for NULL zonelist On Fri, Aug 01, 2014 at 02:10:37AM -0700, David Rientjes wrote: > On Thu, 31 Jul 2014, Johannes Weiner wrote: > > > out_of_memory() wants the zonelist that was used during allocation, > > not just the random first node's zonelist that's simply picked to > > serialize page fault OOM kills system-wide. > > > > This would even change how panic_on_oom behaves for page fault OOMs > > (in a completely unpredictable way) if we get CONSTRAINED_CPUSET. > > > > This change makes no sense to me. > > > > Allocations during fault will be constrained by the cpuset's mems, if we > are oom then why would we panic when panic_on_oom == 1? Can you please address the concerns I raised? And please describe user-visible changes in the changelog. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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