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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-07-07 18:26:50 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-08-29 09:20:48 -0700 |
| commit | f0288064425ff9a5e05c8c0fdba6ec7681dd3330 (patch) | |
| tree | e832caa7582daec6284398ff4d4b6f720e22fc8b /kernel/rcu/rcuperf.c | |
| parent | e746b558572efbad250e35e582a32ecabc9e9316 (diff) | |
| download | linux-f0288064425ff9a5e05c8c0fdba6ec7681dd3330.tar.bz2 | |
rcuperf: Warn on bad perf type for built-in tests
When running a built-in rcuperf test, specifying an invalid perf type
results in what looks like a hard hang, with the error messages hidden
by other boot-time output. This commit therefore executes a WARN_ON()
in this case so that the splat appears just following the error messages.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/rcuperf.c')
| -rw-r--r-- | kernel/rcu/rcuperf.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuperf.c index 34244523550e..832ce68fd45f 100644 --- a/kernel/rcu/rcuperf.c +++ b/kernel/rcu/rcuperf.c @@ -680,6 +680,7 @@ rcu_perf_init(void) for (i = 0; i < ARRAY_SIZE(perf_ops); i++) pr_cont(" %s", perf_ops[i]->name); pr_cont("\n"); + WARN_ON(!IS_MODULE(CONFIG_RCU_PERF_TEST)); firsterr = -EINVAL; goto unwind; } |