[PATCH] Profiling: require buffer allocation on the correct node
Profiling really suffers with off node buffers. Fail if no memory is
available on the nodes. The profiling code can deal with these failures
should they occur.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/profile.c b/kernel/profile.c
index d5bd75e..fb660c7 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -309,13 +309,17 @@
node = cpu_to_node(cpu);
per_cpu(cpu_profile_flip, cpu) = 0;
if (!per_cpu(cpu_profile_hits, cpu)[1]) {
- page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0);
+ page = alloc_pages_node(node,
+ GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
+ 0);
if (!page)
return NOTIFY_BAD;
per_cpu(cpu_profile_hits, cpu)[1] = page_address(page);
}
if (!per_cpu(cpu_profile_hits, cpu)[0]) {
- page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0);
+ page = alloc_pages_node(node,
+ GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
+ 0);
if (!page)
goto out_free;
per_cpu(cpu_profile_hits, cpu)[0] = page_address(page);
@@ -491,12 +495,16 @@
int node = cpu_to_node(cpu);
struct page *page;
- page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0);
+ page = alloc_pages_node(node,
+ GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
+ 0);
if (!page)
goto out_cleanup;
per_cpu(cpu_profile_hits, cpu)[1]
= (struct profile_hit *)page_address(page);
- page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0);
+ page = alloc_pages_node(node,
+ GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
+ 0);
if (!page)
goto out_cleanup;
per_cpu(cpu_profile_hits, cpu)[0]
