linux-kernel - [PATCH] ring-buffer: fix free page

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Date:	Mon, 13 Oct 2008 10:22:06 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH] ring-buffer: fix free page


The pages of a buffer was originally pointing to the page struct, it
now points to the page address. The freeing of the page still uses
the page frame free "__free_page" instead of the correct free_page to
the address.

Signed-off-by: Steven Rostedt <srostedt@...hat.com>
---
 kernel/trace/ring_buffer.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-tip.git/kernel/trace/ring_buffer.c
===================================================================
--- linux-tip.git.orig/kernel/trace/ring_buffer.c	2008-10-13 10:15:16.000000000 -0400
+++ linux-tip.git/kernel/trace/ring_buffer.c	2008-10-13 10:17:03.000000000 -0400
@@ -130,7 +130,7 @@ struct buffer_page {
 static inline void free_buffer_page(struct buffer_page *bpage)
 {
 	if (bpage->page)
-		__free_page(bpage->page);
+		free_page((unsigned long)bpage->page);
 	kfree(bpage);
 }
 

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