ring-buffer: fix build error
fix:
kernel/trace/ring_buffer.c: In function ‘rb_allocate_pages’:
kernel/trace/ring_buffer.c:235: error: ‘cpu’ 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@elte.hu>
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 @@
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);