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Date: Fri, 26 Sep 2014 11:53:14 +0200 From: Jiri Slaby <jslaby@...e.cz> To: Mel Gorman <mgorman@...e.de> CC: Linux-Stable <stable@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 08/97] mm, thp: do not allow thp faults to avoid cpuset restrictions On 08/28/2014, 08:34 PM, Mel Gorman wrote: > From: David Rientjes <rientjes@...gle.com> > > commit b104a35d32025ca740539db2808aa3385d0f30eb upstream. > > The page allocator relies on __GFP_WAIT to determine if ALLOC_CPUSET > should be set in allocflags. ALLOC_CPUSET controls if a page allocation > should be restricted only to the set of allowed cpuset mems. > > Transparent hugepages clears __GFP_WAIT when defrag is disabled to prevent > the fault path from using memory compaction or direct reclaim. Thus, it > is unfairly able to allocate outside of its cpuset mems restriction as a > side-effect. > > This patch ensures that ALLOC_CPUSET is only cleared when the gfp mask is > truly GFP_ATOMIC by verifying it is also not a thp allocation. Hi, the time has come to apply this series. Thanks a lot for doing that. It all applies cleanly except this one, as it is already in 2.6.27. So skipping makes it work nicely. -- js suse labs -- 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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