From: Steven Rostedt <rostedt@goodmis.org>
Date: Mon, 12 May 2008 19:20:58 +0000 (+0200)
Subject: ftrace: trace_pipe implement NONBLOCK
X-Git-Tag: v2.6.27-rc1~1102^2^2~1^2~54
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2dc8f09571a61d9cb3dc47bba6608689dfe15d16;p=pandora-kernel.git

ftrace: trace_pipe implement NONBLOCK

This patch implements "NONBLOCK" for trace_pipe. If the trace_pipe is opened
with O_NONBLOCK, then the trace_pipe read will not block when buffer is empty.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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