[PATCH] node affine NUMA scheduler 4/5

[PATCH] node affine NUMA scheduler 4/5

[Erich Focht]

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----------  Resent Message  ----------

Subject: [PATCH] node affine NUMA scheduler 4/5
Date: Fri, 11 Oct 2002 20:01:39 +0200

Ooops, this went out empty. It's so simple, anyway. Sorry...

On Friday 11 October 2002 19:59, Erich Focht wrote:
> And here comes the fourth part...
>
> > 04-alloc_on_homenode.patch :
> >        Coupling with the memory allocator: for user tasks allocate memory
> >        from the homenode, no matter on which node the task is scheduled.

Erich

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diff -urNp 2.5.39-disc-na/include/linux/gfp.h 2.5.39-disc-nac/include/linux/gfp.h
--- 2.5.39-disc-na/include/linux/gfp.h	Fri Sep 27 23:49:16 2002
+++ 2.5.39-disc-nac/include/linux/gfp.h	Tue Oct  8 16:16:04 2002
@@ -51,9 +51,13 @@ extern struct page * alloc_pages_node(in
  */
 static inline struct page * alloc_pages(unsigned int gfp_mask, unsigned int order)
 {
-	pg_data_t *pgdat = NODE_DATA(numa_node_id());
+	pg_data_t *pgdat;
 	unsigned int idx = (gfp_mask & GFP_ZONEMASK);
 
+	if (current->active_mm == &init_mm)
+		pgdat = NODE_DATA(numa_node_id());
+	else
+		pgdat = NODE_DATA(current->node);
 	if (unlikely(order >= MAX_ORDER))
 		return NULL;