From: Steven Rostedt (Red Hat) <srostedt@redhat.com>
Date: Wed, 6 Mar 2013 20:27:24 +0000 (-0500)
Subject: tracing: Prevent deleting instances when they are being read
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~134^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a695cb5816228f86576f5f5c6809fdf8ed382ece;p=pandora-kernel.git

tracing: Prevent deleting instances when they are being read

Add a ref count to the trace_array structure and prevent removal
of instances that have open descriptors.

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