lkml.org 
[lkml]   [2006]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[Patch] rcutorture: tag success/failure line with module parameters
Hello!

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: <paulmck@us.ibm.com>
---

rcutorture.c | 23 +++++++++++++++--------
1 files changed, 15 insertions(+), 8 deletions(-)

diff -urpNa -X dontdiff linux-2.6.16-rc1-mm4/kernel/rcutorture.c linux-2.6.16-rc1-mm4-rcutortureendpars/kernel/rcutorture.c
--- linux-2.6.16-rc1-mm4/kernel/rcutorture.c 2006-02-02 16:04:26.000000000 -0800
+++ linux-2.6.16-rc1-mm4-rcutortureendpars/kernel/rcutorture.c 2006-02-02 18:34:52.000000000 -0800
@@ -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. */
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2006-02-04 06:03    [W:0.028 / U:0.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site