Commit 4199cfa0 authored Oct 16, 2007 by Christoph Lameter Committed by Linus Torvalds Oct 16, 2007

Memoryless nodes: Allow profiling data to fall back to other nodes



Processors on memoryless nodes must be able to fall back to remote nodes in
order to get a profiling buffer.  This may lead to excessive NUMA traffic but
I think we should allow this rather than failing.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Acked-by: Bob Picco <bob.picco@hp.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@skynet.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 2dca53a9

kernel/profile.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -346,7 +346,7 @@ static int __devinit profile_cpu_callback(struct notifier_block *info,
		per_cpu(cpu_profile_flip, cpu) = 0;
		if (!per_cpu(cpu_profile_hits, cpu)[1]) {
		page = alloc_pages_node(node,
		GFP_KERNEL \| __GFP_ZERO \| GFP_THISNODE,
		GFP_KERNEL \| __GFP_ZERO,
		0);
		if (!page)
		return NOTIFY_BAD;
		@@ -354,7 +354,7 @@ static int __devinit profile_cpu_callback(struct notifier_block *info,
		}
		if (!per_cpu(cpu_profile_hits, cpu)[0]) {
		page = alloc_pages_node(node,
		GFP_KERNEL \| __GFP_ZERO \| GFP_THISNODE,
		GFP_KERNEL \| __GFP_ZERO,
		0);
		if (!page)
		goto out_free;