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scftorture: Flag errors in torture-compatible manner 

This commit prints error counts on the statistics line and also adds a
"!!!" if any of the counters are non-zero.  Allocation failures are
(somewhat) forgiven, but all other errors result in a "FAILURE" print
at the end of the test.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2020-07-01 16:06:22 -07:00
parent 4df55bddc1
commit dbf83b655a
1 changed files with 10 additions and 4 deletions
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14
kernel/scftorture.c
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@ -132,6 +132,7 @@ static atomic_t n_mb_in_errs;
static atomic_t n_mb_out_errs;
static atomic_t n_alloc_errs;
static bool scfdone;
static char *bangstr = "";
DEFINE_TORTURE_RANDOM_PERCPU(scf_torture_rand);
@ -156,12 +157,17 @@ static void scf_torture_stats_print(void)
scfs.n_all += scf_stats_p[i].n_all;
scfs.n_all_wait += scf_stats_p[i].n_all_wait;
}
pr_alert("%s scf_invoked_count %s: %lld single: %lld/%lld single_ofl: %lld/%lld many: %lld/%lld all: %lld/%lld ",
SCFTORT_FLAG, isdone ? "VER" : "ver", invoked_count,
if (atomic_read(&n_errs) || atomic_read(&n_mb_in_errs) ||
atomic_read(&n_mb_out_errs) || atomic_read(&n_alloc_errs))
bangstr = "!!! ";
pr_alert("%s %sscf_invoked_count %s: %lld single: %lld/%lld single_ofl: %lld/%lld many: %lld/%lld all: %lld/%lld ",
SCFTORT_FLAG, bangstr, isdone ? "VER" : "ver", invoked_count,
scfs.n_single, scfs.n_single_wait, scfs.n_single_ofl, scfs.n_single_wait_ofl,
scfs.n_many, scfs.n_many_wait, scfs.n_all, scfs.n_all_wait);
torture_onoff_stats();
pr_cont("\n");
pr_cont("ste: %d stnmie: %d stnmoe: %d staf: %d\n", atomic_read(&n_errs),
atomic_read(&n_mb_in_errs), atomic_read(&n_mb_out_errs),
atomic_read(&n_alloc_errs));
}
// Periodically prints torture statistics, if periodic statistics printing
@ -431,7 +437,7 @@ static void scf_torture_cleanup(void)
kfree(scf_stats_p); // -After- the last stats print has completed!
scf_stats_p = NULL;
if (atomic_read(&n_errs))
if (atomic_read(&n_errs) || atomic_read(&n_mb_in_errs) || atomic_read(&n_mb_out_errs))
scftorture_print_module_parms("End of test: FAILURE");
else if (torture_onoff_failures())
scftorture_print_module_parms("End of test: LOCK_HOTPLUG");