From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/kernel/locking/locktorture.c | 66 ++++++++++++--------------------
1 files changed, 25 insertions(+), 41 deletions(-)
diff --git a/kernel/kernel/locking/locktorture.c b/kernel/kernel/locking/locktorture.c
index 5748c19..62d215b 100644
--- a/kernel/kernel/locking/locktorture.c
+++ b/kernel/kernel/locking/locktorture.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Module-based torture test facility for locking
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, you can access it online at
- * http://www.gnu.org/licenses/gpl-2.0.html.
- *
* Copyright (C) IBM Corporation, 2014
*
- * Authors: Paul E. McKenney <paulmck@us.ibm.com>
+ * Authors: Paul E. McKenney <paulmck@linux.ibm.com>
* Davidlohr Bueso <dave@stgolabs.net>
* Based on kernel/rcu/torture.c.
*/
@@ -44,7 +31,7 @@
#include <linux/torture.h>
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Paul E. McKenney <paulmck@us.ibm.com>");
+MODULE_AUTHOR("Paul E. McKenney <paulmck@linux.ibm.com>");
torture_param(int, nwriters_stress, -1,
"Number of write-locking stress-test threads");
@@ -449,8 +436,6 @@
static void torture_rtmutex_boost(struct torture_random_state *trsp)
{
- int policy;
- struct sched_param param;
const unsigned int factor = 50000; /* yes, quite arbitrary */
if (!rt_task(current)) {
@@ -461,8 +446,7 @@
*/
if (trsp && !(torture_random(trsp) %
(cxt.nrealwriters_stress * factor))) {
- policy = SCHED_FIFO;
- param.sched_priority = MAX_RT_PRIO - 1;
+ sched_set_fifo(current);
} else /* common case, do nothing */
return;
} else {
@@ -475,13 +459,10 @@
*/
if (!trsp || !(torture_random(trsp) %
(cxt.nrealwriters_stress * factor * 2))) {
- policy = SCHED_NORMAL;
- param.sched_priority = 0;
+ sched_set_normal(current, 0);
} else /* common case, do nothing */
return;
}
-
- sched_setscheduler_nocheck(current, policy, ¶m);
}
static void torture_rtmutex_delay(struct torture_random_state *trsp)
@@ -585,7 +566,7 @@
#include <linux/percpu-rwsem.h>
static struct percpu_rw_semaphore pcpu_rwsem;
-void torture_percpu_rwsem_init(void)
+static void torture_percpu_rwsem_init(void)
{
BUG_ON(percpu_init_rwsem(&pcpu_rwsem));
}
@@ -631,7 +612,7 @@
static int lock_torture_writer(void *arg)
{
struct lock_stress_stats *lwsp = arg;
- static DEFINE_TORTURE_RANDOM(rand);
+ DEFINE_TORTURE_RANDOM(rand);
VERBOSE_TOROUT_STRING("lock_torture_writer task started");
set_user_nice(current, MAX_NICE);
@@ -644,13 +625,13 @@
cxt.cur_ops->writelock();
if (WARN_ON_ONCE(lock_is_write_held))
lwsp->n_lock_fail++;
- lock_is_write_held = 1;
+ lock_is_write_held = true;
if (WARN_ON_ONCE(lock_is_read_held))
lwsp->n_lock_fail++; /* rare, but... */
lwsp->n_lock_acquired++;
cxt.cur_ops->write_delay(&rand);
- lock_is_write_held = 0;
+ lock_is_write_held = false;
cxt.cur_ops->writeunlock();
stutter_wait("lock_torture_writer");
@@ -668,7 +649,7 @@
static int lock_torture_reader(void *arg)
{
struct lock_stress_stats *lrsp = arg;
- static DEFINE_TORTURE_RANDOM(rand);
+ DEFINE_TORTURE_RANDOM(rand);
VERBOSE_TOROUT_STRING("lock_torture_reader task started");
set_user_nice(current, MAX_NICE);
@@ -678,13 +659,13 @@
schedule_timeout_uninterruptible(1);
cxt.cur_ops->readlock();
- lock_is_read_held = 1;
+ lock_is_read_held = true;
if (WARN_ON_ONCE(lock_is_write_held))
lrsp->n_lock_fail++; /* rare, but... */
lrsp->n_lock_acquired++;
cxt.cur_ops->read_delay(&rand);
- lock_is_read_held = 0;
+ lock_is_read_held = false;
cxt.cur_ops->readunlock();
stutter_wait("lock_torture_reader");
@@ -699,7 +680,7 @@
static void __torture_print_stats(char *page,
struct lock_stress_stats *statp, bool write)
{
- bool fail = 0;
+ bool fail = false;
int i, n_stress;
long max = 0, min = statp ? statp[0].n_lock_acquired : 0;
long long sum = 0;
@@ -717,7 +698,8 @@
page += sprintf(page,
"%s: Total: %lld Max/Min: %ld/%ld %s Fail: %d %s\n",
write ? "Writes" : "Reads ",
- sum, max, min, max / 2 > min ? "???" : "",
+ sum, max, min,
+ !onoff_interval && max / 2 > min ? "???" : "",
fail, fail ? "!!!" : "");
if (fail)
atomic_inc(&cxt.n_lock_torture_errors);
@@ -841,7 +823,9 @@
"End of test: SUCCESS");
kfree(cxt.lwsa);
+ cxt.lwsa = NULL;
kfree(cxt.lrsa);
+ cxt.lrsa = NULL;
end:
torture_cleanup_end();
@@ -899,22 +883,22 @@
cxt.nrealwriters_stress = 2 * num_online_cpus();
#ifdef CONFIG_DEBUG_MUTEXES
- if (strncmp(torture_type, "mutex", 5) == 0)
+ if (str_has_prefix(torture_type, "mutex"))
cxt.debug_lock = true;
#endif
#ifdef CONFIG_DEBUG_RT_MUTEXES
- if (strncmp(torture_type, "rtmutex", 7) == 0)
+ if (str_has_prefix(torture_type, "rtmutex"))
cxt.debug_lock = true;
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
- if ((strncmp(torture_type, "spin", 4) == 0) ||
- (strncmp(torture_type, "rw_lock", 7) == 0))
+ if ((str_has_prefix(torture_type, "spin")) ||
+ (str_has_prefix(torture_type, "rw_lock")))
cxt.debug_lock = true;
#endif
/* Initialize the statistics so that each run gets its own numbers. */
if (nwriters_stress) {
- lock_is_write_held = 0;
+ lock_is_write_held = false;
cxt.lwsa = kmalloc_array(cxt.nrealwriters_stress,
sizeof(*cxt.lwsa),
GFP_KERNEL);
@@ -945,7 +929,7 @@
}
if (nreaders_stress) {
- lock_is_read_held = 0;
+ lock_is_read_held = false;
cxt.lrsa = kmalloc_array(cxt.nrealreaders_stress,
sizeof(*cxt.lrsa),
GFP_KERNEL);
@@ -969,7 +953,7 @@
/* Prepare torture context. */
if (onoff_interval > 0) {
firsterr = torture_onoff_init(onoff_holdoff * HZ,
- onoff_interval * HZ);
+ onoff_interval * HZ, NULL);
if (firsterr)
goto unwind;
}
@@ -985,7 +969,7 @@
goto unwind;
}
if (stutter > 0) {
- firsterr = torture_stutter_init(stutter);
+ firsterr = torture_stutter_init(stutter, stutter);
if (firsterr)
goto unwind;
}
--
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