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authorChristoph Lameter <clameter@sgi.com>2007-10-16 04:25:34 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 12:42:58 -0400
commit4199cfa02b982f4c739e8a6a304d6a40e1935d25 (patch)
treec917040b3ed5be157bee34a03408f31cf330dad0
parent2dca53a9dabe76f49209c9128313347510416c68 (diff)
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>
-rw-r--r--kernel/profile.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/profile.c b/kernel/profile.c
index cb1e37d2dac3..6f69bf792d96 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -346,7 +346,7 @@ static int __devinit profile_cpu_callback(struct notifier_block *info,
346 per_cpu(cpu_profile_flip, cpu) = 0; 346 per_cpu(cpu_profile_flip, cpu) = 0;
347 if (!per_cpu(cpu_profile_hits, cpu)[1]) { 347 if (!per_cpu(cpu_profile_hits, cpu)[1]) {
348 page = alloc_pages_node(node, 348 page = alloc_pages_node(node,
349 GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, 349 GFP_KERNEL | __GFP_ZERO,
350 0); 350 0);
351 if (!page) 351 if (!page)
352 return NOTIFY_BAD; 352 return NOTIFY_BAD;
@@ -354,7 +354,7 @@ static int __devinit profile_cpu_callback(struct notifier_block *info,
354 } 354 }
355 if (!per_cpu(cpu_profile_hits, cpu)[0]) { 355 if (!per_cpu(cpu_profile_hits, cpu)[0]) {
356 page = alloc_pages_node(node, 356 page = alloc_pages_node(node,
357 GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, 357 GFP_KERNEL | __GFP_ZERO,
358 0); 358 0);
359 if (!page) 359 if (!page)
360 goto out_free; 360 goto out_free;