[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.

Christoph Lameter committed 20 years ago

Commit 46934021 parent fc513a31 file · +7 −0Browse files

Showing the changes to kernel/workqueue.c (1 of 1 file). Show all

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kernel/workqueue.c+7−0

@@ -28,6 +28,7 @@ · 27 unmodified lines
28	28	#include <linux/notifier.h>
29	29	#include <linux/kthread.h>
30	30	#include <linux/hardirq.h>
	31	+#include <linux/mempolicy.h>
31	32
32	33	/*
33	34	* The per-CPU workqueue (if single thread, we always use the first
@@ -245,6 +246,12 @@ static int worker_thread(void *__cwq) · 211 unmodified lines
245	246	sigprocmask(SIG_BLOCK, &blocked, NULL);
246	247	flush_signals(current);
247	248
	249	+ /*
	250	+ * We inherited MPOL_INTERLEAVE from the booting kernel.
	251	+ * Set MPOL_DEFAULT to insure node local allocations.
	252	+ */
	253	+ numa_default_policy();
	254	+
248	255	/* SIG_IGN makes children autoreap: see do_notify_parent(). */
249	256	sa.sa.sa_handler = SIG_IGN;
250	257	sa.sa.sa_flags = 0;