Commit 31b7ce3d authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Joel Fernandes
Browse files

rcutorture: Make srcu_lockdep.sh check kernel Kconfig 



The srcu_lockdep.sh currently blindly trusts the rcutorture SRCU-P
scenario to build its kernel with lockdep enabled.  Of course, this
dependency might not be obvious to someone rebalancing SRCU scenarios.
This commit therefore adds code to srcu_lockdep.sh that verifies that
the .config file has lockdep enabled.

Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Signed-off-by: default avatarJoel Fernandes <joelagnelf@nvidia.com>
parent 0af2f6be

tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh

+10 −1
Original line number Diff line number Diff line
@@ -39,8 +39,9 @@ do 
	shift

done



err=

nerrs=0



# Test lockdep's handling of deadlocks.

for d in 0 1

do

	for t in 0 1 2
@@ -52,6 +53,12 @@ do 
			tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5s --configs "SRCU-P" --kconfig "CONFIG_FORCE_NEED_SRCU_NMI_SAFE=y" --bootargs "rcutorture.test_srcu_lockdep=$val rcutorture.reader_flavor=0x2" --trust-make --datestamp "$ds/$val" > "$T/kvm.sh.out" 2>&1

			ret=$?

			mv "$T/kvm.sh.out" "$RCUTORTURE/res/$ds/$val"

			if ! grep -q '^CONFIG_PROVE_LOCKING=y' .config

			then

				echo "rcu_torture_init_srcu_lockdep:Error: CONFIG_PROVE_LOCKING disabled in rcutorture SRCU-P scenario"

				nerrs=$((nerrs+1))

				err=1

			fi

			if test "$d" -ne 0 && test "$ret" -eq 0

			then

				err=1
@@ -71,6 +78,8 @@ do 
		done

	done

done



# Set up exit code.

if test "$nerrs" -ne 0

then

	exit 1