[PATCH] ring-buffer: fix build error

[Ingo Molnar]

fix:

 kernel/trace/ring_buffer.c: In function ârb_allocate_pagesâ:
 kernel/trace/ring_buffer.c:235: error: âcpuâ undeclared (first use in this function)
 kernel/trace/ring_buffer.c:235: error: (Each undeclared identifier is reported only once
 kernel/trace/ring_buffer.c:235: error: for each function it appears in.)

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 kernel/trace/ring_buffer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 9814571..54a3098 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -232,7 +232,7 @@ static int rb_allocate_pages(struct ring_buffer_per_cpu *cpu_buffer,
 
 	for (i = 0; i < nr_pages; i++) {
 		page = kzalloc_node(ALIGN(sizeof(*page), cache_line_size()),
-				    GFP_KERNEL, cpu_to_node(cpu));
+				    GFP_KERNEL, cpu_to_node(i));
 		if (!page)
 			goto free_pages;
 		list_add(&page->list, &pages);
--
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