torture: Adjust rcuperf trace processing to allow for workqueues

The rcuperf event-trace processing assumes that expedited grace periods
start and end on the same task, an assumption that was violated by moving
expedited grace-period processing to workqueues.  This commit removes
this now-fallacious assumption from rcuperf's event-trace processing.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh
index 963f71289d224619e8e7fa18fcae67e66f757e3a..dffb553a7bccccdb8bd4da574496a17bab5c9aba 100755 (executable)
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh
@@ -39,7 +39,7 @@ sed -e 's/us : / : /' |
 tr -d '\015' |
 awk '
 $8 == "start" {
-       if (starttask != "")
+       if (startseq != "")
                nlost++;
        starttask = $1;
        starttime = $3;
@@ -47,17 +47,17 @@ $8 == "start" {
 }
 
 $8 == "end" {
-       if (starttask == $1 && startseq == $7) {
+       if (startseq == $7) {
                curgpdur = $3 - starttime;
                gptimes[++n] = curgpdur;
                gptaskcnt[starttask]++;
                sum += curgpdur;
                if (curgpdur > 1000)
                        print "Long GP " starttime "us to " $3 "us (" curgpdur "us)";
-               starttask = "";
+               startseq = "";
        } else {
                # Lost a message or some such, reset.
-               starttask = "";
+               startseq = "";
                nlost++;
        }
 }