[PATCH] oprofile: Use vmalloc_node() in alloc_cpu_buffers()

Make oprofile alloc_cpu_buffers() function NUMA aware, allocating each CPU
local buffer in its memory node if possible.
Signed-off-by: NEric Dumazet <dada1@cosmosbay.com>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Cc: John Levon <levon@movementarian.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/oprofile/cpu_buffer.c

@@ -52,7 +52,8 @@ int alloc_cpu_buffers(void)
 	for_each_online_cpu(i) {
 		struct oprofile_cpu_buffer * b = &cpu_buffer[i];
  
-		b->buffer = vmalloc(sizeof(struct op_sample) * buffer_size);
+		b->buffer = vmalloc_node(sizeof(struct op_sample) * buffer_size,
+			cpu_to_node(i));
 		if (!b->buffer)
 			goto fail;