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[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>
Christoph Lameter 18 年之前
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fbd98167e6
共有 1 个文件被更改,包括 12 次插入4 次删除
  1. 12 4
      kernel/profile.c

+ 12 - 4
kernel/profile.c

@@ -309,13 +309,17 @@ static int __devinit profile_cpu_callback(struct notifier_block *info,
 		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 @@ static int __init create_hash_tables(void)
 		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]