Commit 46934023 authored Oct 11, 2006 by Christoph Lameter Committed by Linus Torvalds Oct 11, 2006

[PATCH] mm: kevent threads: use MPOL_DEFAULT

Switch the memory policy of the kevent threads to MPOL_DEFAULT while
leaving the kzalloc of the workqueue structure on interleave.  This means
that all code executed in the context of the kevent thread is allocating
node local.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Alok Kataria <alok.kataria@calsoftinc.com>
Cc: Andi Kleen <ak@suse.de>
Cc: <pj@sgi.com>
Cc: <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent fc513a33

kernel/workqueue.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -28,6 +28,7 @@
		#include <linux/notifier.h>
		#include <linux/kthread.h>
		#include <linux/hardirq.h>
		#include <linux/mempolicy.h>

		/*
		* The per-CPU workqueue (if single thread, we always use the first
		@@ -245,6 +246,12 @@ static int worker_thread(void *__cwq)
		sigprocmask(SIG_BLOCK, &blocked, NULL);
		flush_signals(current);

		/*
		* We inherited MPOL_INTERLEAVE from the booting kernel.
		* Set MPOL_DEFAULT to insure node local allocations.
		*/
		numa_default_policy();

		/* SIG_IGN makes children autoreap: see do_notify_parent(). */
		sa.sa.sa_handler = SIG_IGN;
		sa.sa.sa_flags = 0;