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authorLinus Torvalds <torvalds@linux-foundation.org>2016-01-12 20:04:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-12 20:04:15 -0800
commitc17488d06666153a14dd3f21bd10eba58383f6c1 (patch)
tree8a8dfaa2b2692f8b4eb20fe7e4266036f692fbdc /tools
parent34a9304a96d6351c2d35dcdc9293258378fc0bd8 (diff)
parent5156dca34a3e1e1edac2d0dabf43d8632909b7aa (diff)
Merge tag 'trace-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt: "Not much new with tracing for this release. Mostly just clean ups and minor fixes. Here's what else is new: - A new TRACE_EVENT_FN_COND macro, combining both _FN and _COND for those that want both. - New selftest to test the instance create and delete - Better debug output when ftrace fails" * tag 'trace-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits) ftrace: Fix the race between ftrace and insmod ftrace: Add infrastructure for delayed enabling of module functions x86: ftrace: Fix the comments for ftrace_modify_code_direct() tracing: Fix comment to use tracing_on over tracing_enable metag: ftrace: Fix the comments for ftrace_modify_code sh: ftrace: Fix the comments for ftrace_modify_code() ia64: ftrace: Fix the comments for ftrace_modify_code() ftrace: Clean up ftrace_module_init() code ftrace: Join functions ftrace_module_init() and ftrace_init_module() tracing: Introduce TRACE_EVENT_FN_COND macro tracing: Use seq_buf_used() in seq_buf_to_user() instead of len bpf: Constify bpf_verifier_ops structure ftrace: Have ftrace_ops_get_func() handle RCU and PER_CPU flags too ftrace: Remove use of control list and ops ftrace: Fix output of enabled_functions for showing tramp ftrace: Fix a typo in comment ftrace: Show all tramps registered to a record on ftrace_bug() ftrace: Add variable ftrace_expected for archs to show expected code ftrace: Add new type to distinguish what kind of ftrace_bug() tracing: Update cond flag when enabling or disabling a trigger ...
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/ftrace/test.d/instances/instance.tc90
1 files changed, 90 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance.tc b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
new file mode 100644
index 000000000000..773e276ff90b
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
@@ -0,0 +1,90 @@
+#!/bin/sh
+# description: Test creation and deletion of trace instances
+
+if [ ! -d instances ] ; then
+ echo "no instance directory with this kernel"
+ exit_unsupported;
+fi
+
+fail() { # mesg
+ rmdir x y z 2>/dev/null
+ echo $1
+ set -e
+ exit $FAIL
+}
+
+cd instances
+
+# we don't want to fail on error
+set +e
+
+mkdir x
+rmdir x
+result=$?
+
+if [ $result -ne 0 ]; then
+ echo "instance rmdir not supported"
+ exit_unsupported
+fi
+
+instance_slam() {
+ while :; do
+ mkdir x
+ mkdir y
+ mkdir z
+ rmdir x
+ rmdir y
+ rmdir z
+ done 2>/dev/null
+}
+
+instance_slam &
+x=`jobs -l`
+p1=`echo $x | cut -d' ' -f2`
+echo $p1
+
+instance_slam &
+x=`jobs -l | tail -1`
+p2=`echo $x | cut -d' ' -f2`
+echo $p2
+
+instance_slam &
+x=`jobs -l | tail -1`
+p3=`echo $x | cut -d' ' -f2`
+echo $p3
+
+instance_slam &
+x=`jobs -l | tail -1`
+p4=`echo $x | cut -d' ' -f2`
+echo $p4
+
+instance_slam &
+x=`jobs -l | tail -1`
+p5=`echo $x | cut -d' ' -f2`
+echo $p5
+
+ls -lR >/dev/null
+sleep 1
+
+kill -1 $p1
+kill -1 $p2
+kill -1 $p3
+kill -1 $p4
+kill -1 $p5
+
+echo "Wait for processes to finish"
+wait $p1 $p2 $p3 $p4 $p5
+echo "all processes finished, wait for cleanup"
+
+mkdir x y z
+ls x y z
+rmdir x y z
+for d in x y z; do
+ if [ -d $d ]; then
+ fail "instance $d still exists"
+ fi
+done
+
+set -e
+
+exit 0