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Reviewing the selftest I recently submitted, I realize that the second part

Browse source 
of it uses my old hack to get the PID of the spawned background tasks,
 which doesn't work for all shells, instead of the common use of $!.
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Merge tag 'trace-v4.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Reviewing the selftest I recently submitted, I realize that the second
  part of it uses my old hack to get the PID of the spawned background
  tasks, which doesn't work for all shells, instead of the common use of
  $!"

* tag 'trace-v4.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftracetest: Use proper logic to find process PID
This commit is contained in:
Linus Torvalds 2016-05-23 19:30:30 -07:00
parent d6542d76ec 97f8827a8c
commit 4496a1d963
1 changed files with 5 additions and 10 deletions
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15
tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
View file

@ -92,28 +92,23 @@ 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