Commit 95c38322 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Linus Torvalds
Browse files

[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: default avatar"Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent cdb04527

kernel/rcutorture.c

+15 −8
Original line number Diff line number Diff line
@@ -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. */

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