From: Steven Rostedt <rostedt@goodmis.org>
Date: Wed, 1 Oct 2008 15:14:54 +0000 (-0400)
Subject: ring_buffer: allocate buffer page pointer
X-Git-Tag: v2.6.28-rc1~78^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e4c2ce82ca2710e17cb4df8eb2b249fa2eb5af30;p=pandora-kernel.git

ring_buffer: allocate buffer page pointer

The current method of overlaying the page frame as the buffer page pointer
can be very dangerous and limits our ability to do other things with
a page from the buffer, like send it off to disk.

This patch allocates the buffer_page instead of overlaying the page's
page frame. The use of the buffer_page has hardly changed due to this.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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