From: Steven Rostedt <srostedt@redhat.com>
Date: Thu, 12 Mar 2009 15:33:20 +0000 (-0400)
Subject: tracing: protect ring_buffer_expanded with trace_types_lock
X-Git-Tag: v2.6.30-rc1~2^2~41^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1027fcb206a0fb8348e63aff078c74bdee1c2698;p=pandora-kernel.git

tracing: protect ring_buffer_expanded with trace_types_lock

Impact: prevent races with ring_buffer_expanded

This patch places the expanding of the tracing buffer under the
protection of the trace_types_lock mutex. It is highly unlikely
that there would be any contention, but better safe than sorry.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
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