linux-kernel - Re: [for-next][PATCH 3/7] ftracetest: Add instance create and delete test

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Message-ID: <20151211143617.65f4d7a1@gandalf.local.home>
Date:	Fri, 11 Dec 2015 14:36:17 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [for-next][PATCH 3/7] ftracetest: Add instance create and
 delete test

On Wed, 09 Dec 2015 16:09:38 +1100
Michael Ellerman <mpe@...erman.id.au> wrote:

> I suspect because my /bin/sh is dash?
> 
> # /bin/dash
> # kill -1
> /bin/dash: 1: kill: Usage: kill [-s sigspec | -signum | -sigspec] [pid | job]... or
> kill -l [exitstatus]
> 

I did some digging and found a better way to do this. Does the belowe
patch fix things for you?

-- Steve


diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance.tc b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
index 773e276ff90b..1e1abe0ad354 100644
--- a/tools/testing/selftests/ftrace/test.d/instances/instance.tc
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
@@ -39,28 +39,23 @@ instance_slam() {
 }
 
 instance_slam &
-x=`jobs -l`
-p1=`echo $x | cut -d' ' -f2`
+p1=$!
 echo $p1
 
 instance_slam &
-x=`jobs -l | tail -1`
-p2=`echo $x | cut -d' ' -f2`
+p2=$!
 echo $p2
 
 instance_slam &
-x=`jobs -l | tail -1`
-p3=`echo $x | cut -d' ' -f2`
+p3=$!
 echo $p3
 
 instance_slam &
-x=`jobs -l | tail -1`
-p4=`echo $x | cut -d' ' -f2`
+p4=$!
 echo $p4
 
 instance_slam &
-x=`jobs -l | tail -1`
-p5=`echo $x | cut -d' ' -f2`
+p5=$!
 echo $p5
 
 ls -lR >/dev/null
--
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