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Mel Gorman b726b7dfb4 Revert "mm: sched: numa: Delay PTE scanning until a task is scheduled on a new node" 
PTE scanning and NUMA hinting fault handling is expensive so commit
5bca2303 ("mm: sched: numa: Delay PTE scanning until a task is scheduled
on a new node") deferred the PTE scan until a task had been scheduled on
another node. The problem is that in the purely shared memory case that
this may never happen and no NUMA hinting fault information will be
captured. We are not ruling out the possibility that something better
can be done here but for now, this patch needs to be reverted and depend
entirely on the scan_delay to avoid punishing short-lived processes.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-16-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 		2013-10-09 12:40:17 +02:00
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acpi
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asm-generic Linux 3.12-rc4 2013-10-09 12:36:13 +02:00
clocksource ARM: SoC cleanups for 3.12 2013-09-06 13:21:16 -07:00
crypto
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drm Revert "drm: mark context support as a legacy subsystem" 2013-09-20 08:32:59 +10:00
dt-bindings Device tree core updates for v3.12 2013-09-10 13:53:52 -07:00
keys
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kvm
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linux Revert "mm: sched: numa: Delay PTE scanning until a task is scheduled on a new node" 2013-10-09 12:40:17 +02:00
math-emu
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media
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memory
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misc
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net Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2013-10-01 12:39:35 -04:00
pcmcia
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ras
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rdma
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rxrpc
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scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-09-12 16:11:45 -07:00
sound sound fixes for 3.12-rc1 2013-09-12 08:52:41 -07:00
target target/iscsi: Bump versions to v4.1.0 2013-09-10 20:23:37 -07:00
trace Linux 3.12-rc4 2013-10-09 12:36:13 +02:00
uapi Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux 2013-09-29 10:02:40 -07:00
video
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xen
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Kbuild
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