rcutorture: Flag tests requiring more CPUs than are available

This commit adds a "(!)" flag after the number of CPUs required by a
given test if that test requires more than the available number of CPUs.
Note that these flags appear only when the number of CPUs is specified
using the --cpus argument.  In the absence of a --cpus argument, no
tests are flagged.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 7ef3b245c778f7c827b0200bf9958a1f44b581e3..c099f8695112fef1c3a49a699bb180ccd5c000dd 100644 (file)
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -300,30 +300,34 @@ function dump(first, pastlast)
                        cfrep[cf[j]]++;
                        cfr[jn] = cf[j] "." cfrep[cf[j]];
                }
-               print "echo ", cfr[jn], cpusr[jn] ": Starting build.";
+               if (cpusr[jn] > ncpus && ncpus != 0)
+                       ovf = "(!)";
+               else
+                       ovf = "";
+               print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build.";
                print "rm -f " builddir ".*";
                print "touch " builddir ".wait";
                print "mkdir " builddir " > /dev/null 2>&1 || :";
                print "mkdir " rd cfr[jn] " || :";
                print "kvm-test-1-rcu.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" RCU_QEMU_ARG "\" \"" RCU_BOOTARGS "\" > " builddir ".out 2>&1 &"
-               print "echo ", cfr[jn], cpusr[jn] ": Waiting for build to complete."
+               print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete."
                print "while test -f " builddir ".wait"
                print "do"
                print "\tsleep 1"
                print "done"
-               print "echo ", cfr[jn], cpusr[jn] ": Build complete."
+               print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete."
                jn++;
        }
        for (j = 1; j < jn; j++) {
                builddir=KVM "/b" j
                print "rm -f " builddir ".ready"
-               print "echo ----", cfr[j], cpusr[j] ": Starting kernel"
+               print "echo ----", cfr[j], cpusr[j] ovf ": Starting kernel"
        }
        print "wait"
        print "echo ---- All kernel runs complete"
        for (j = 1; j < jn; j++) {
                builddir=KVM "/b" j
-               print "echo ----", cfr[j], cpusr[j] ": Build/run results:"
+               print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:"
                print "cat " builddir ".out"
        }
 }