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

This small patch makes oprofile alloc_cpu_buffers() function NUMA aware, allocating each CPU local buffer in its memory node if possible.

Signed-off-by: Eric Dumazet <[email protected]>

--- linux-2.6-orig/drivers/oprofile/cpu_buffer.c	2005-11-25 10:24:00.000000000 +0100
+++ linux-2.6/drivers/oprofile/cpu_buffer.c	2005-11-25 14:29:04.000000000 +0100
@@ -52,7 +52,8 @@
 	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;
  

---

• References:
  • 2.6.15-rc2-mm1
    • From: Andrew Morton <[email protected]>
  • Re: 2.6.15-rc2-mm1
    • From: KAMEZAWA Hiroyuki <[email protected]>
  • Re: 2.6.15-rc2-mm1
    • From: Andrew Morton <[email protected]>

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