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[PATCH] rcutorture: tag success/failure line with module parameters 

A long-running rcutorture test can overflow dmesg, so that the line
containing the module parameters is lost.  Although it is usually possible
to retrieve this information from the log files, it is much better to just
tag it onto the final success/failure line so that it may be easily found.
This patch does just that.

Signed-off-by: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul E. McKenney 2006-03-24 03:15:58 -08:00 committed by Linus Torvalds
parent cdb0452789
commit 95c3832272
1 changed files with 15 additions and 8 deletions
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23
kernel/rcutorture.c
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@ -441,6 +441,16 @@ rcu_torture_shuffle(void *arg)
return 0;
}
static inline void
rcu_torture_print_module_parms(char *tag)
{
printk(KERN_ALERT TORTURE_FLAG "--- %s: nreaders=%d "
"stat_interval=%d verbose=%d test_no_idle_hz=%d "
"shuffle_interval = %d\n",
tag, nrealreaders, stat_interval, verbose, test_no_idle_hz,
shuffle_interval);
}
static void
rcu_torture_cleanup(void)
{
@ -483,9 +493,10 @@ rcu_torture_cleanup(void)
rcu_barrier();
rcu_torture_stats_print(); /* -After- the stats thread is stopped! */
printk(KERN_ALERT TORTURE_FLAG
"--- End of test: %s\n",
atomic_read(&n_rcu_torture_error) == 0 ? "SUCCESS" : "FAILURE");
if (atomic_read(&n_rcu_torture_error))
rcu_torture_print_module_parms("End of test: FAILURE");
else
rcu_torture_print_module_parms("End of test: SUCCESS");
}
static int
@ -501,11 +512,7 @@ rcu_torture_init(void)
nrealreaders = nreaders;
else
nrealreaders = 2 * num_online_cpus();
printk(KERN_ALERT TORTURE_FLAG "--- Start of test: nreaders=%d "
"stat_interval=%d verbose=%d test_no_idle_hz=%d "
"shuffle_interval = %d\n",
nrealreaders, stat_interval, verbose, test_no_idle_hz,
shuffle_interval);
rcu_torture_print_module_parms("Start of test");
fullstop = 0;
/* Set up the freelist. */