diff options
| author | Davidlohr Bueso <dave@stgolabs.net> | 2014-09-12 05:40:20 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-09-16 22:41:05 +0200 |
| commit | 1e6757a92189278c484799ea98fc69bdc528940e (patch) | |
| tree | 434aee0cfb1b22a6900f152c4aba1be5127dde95 /kernel | |
| parent | locktorture: Teach about lock debugging (diff) | |
| download | linux-1e6757a92189278c484799ea98fc69bdc528940e.tar.xz linux-1e6757a92189278c484799ea98fc69bdc528940e.zip | |
locktorture: Make statistics generic
The statistics structure can serve well for both reader and writer
locks, thus simply rename some fields that mention 'write' and leave
the declaration of lwsa.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/locking/locktorture.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c index a6049fa2287e..de703a769c1d 100644 --- a/kernel/locking/locktorture.c +++ b/kernel/locking/locktorture.c @@ -78,11 +78,11 @@ static struct task_struct **writer_tasks; static int nrealwriters_stress; static bool lock_is_write_held; -struct lock_writer_stress_stats { - long n_write_lock_fail; - long n_write_lock_acquired; +struct lock_stress_stats { + long n_lock_fail; + long n_lock_acquired; }; -static struct lock_writer_stress_stats *lwsa; +static struct lock_stress_stats *lwsa; /* writer statistics */ #if defined(MODULE) #define LOCKTORTURE_RUNNABLE_INIT 1 @@ -250,7 +250,7 @@ static struct lock_torture_ops mutex_lock_ops = { */ static int lock_torture_writer(void *arg) { - struct lock_writer_stress_stats *lwsp = arg; + struct lock_stress_stats *lwsp = arg; static DEFINE_TORTURE_RANDOM(rand); VERBOSE_TOROUT_STRING("lock_torture_writer task started"); @@ -261,9 +261,9 @@ static int lock_torture_writer(void *arg) schedule_timeout_uninterruptible(1); cur_ops->writelock(); if (WARN_ON_ONCE(lock_is_write_held)) - lwsp->n_write_lock_fail++; + lwsp->n_lock_fail++; lock_is_write_held = 1; - lwsp->n_write_lock_acquired++; + lwsp->n_lock_acquired++; cur_ops->write_delay(&rand); lock_is_write_held = 0; cur_ops->writeunlock(); @@ -281,17 +281,17 @@ static void lock_torture_printk(char *page) bool fail = 0; int i; long max = 0; - long min = lwsa[0].n_write_lock_acquired; + long min = lwsa[0].n_lock_acquired; long long sum = 0; for (i = 0; i < nrealwriters_stress; i++) { - if (lwsa[i].n_write_lock_fail) + if (lwsa[i].n_lock_fail) fail = true; - sum += lwsa[i].n_write_lock_acquired; - if (max < lwsa[i].n_write_lock_fail) - max = lwsa[i].n_write_lock_fail; - if (min > lwsa[i].n_write_lock_fail) - min = lwsa[i].n_write_lock_fail; + sum += lwsa[i].n_lock_acquired; + if (max < lwsa[i].n_lock_fail) + max = lwsa[i].n_lock_fail; + if (min > lwsa[i].n_lock_fail) + min = lwsa[i].n_lock_fail; } page += sprintf(page, "%s%s ", torture_type, TORTURE_FLAG); page += sprintf(page, @@ -441,8 +441,8 @@ static int __init lock_torture_init(void) goto unwind; } for (i = 0; i < nrealwriters_stress; i++) { - lwsa[i].n_write_lock_fail = 0; - lwsa[i].n_write_lock_acquired = 0; + lwsa[i].n_lock_fail = 0; + lwsa[i].n_lock_acquired = 0; } /* Start up the kthreads. */ |