From dd7f59435782a02ceb6d16b9ce823dd3345d75ec Mon Sep 17 00:00:00 2001
From: Steven Rostedt <srostedt@redhat.com>
Date: Thu, 10 Dec 2009 23:20:52 -0500
Subject: [PATCH] ring-buffer: Move resize integrity check under reader lock

While using an application that does splice on the ftrace ring
buffer at start up, I triggered an integrity check failure.

Looking into this, I discovered that resizing the buffer performs
an integrity check after the buffer is resized. This check unfortunately
is preformed after it releases the reader lock. If a reader is
reading the buffer it may cause the integrity check to trigger a
false failure.

This patch simply moves the integrity checker under the protection
of the ring buffer reader lock.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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