disable cpu isolcpus

hc

2023-12-09 958e46acc8e900e8569dd467c1af9b8d2d019394

 kernel/fs/fscache/main.c
..
..
@@ -1,12 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /* General filesystem local caching manager
2
3
  *
3
4
  * Copyright (C) 2004-2007 Red Hat, Inc. All Rights Reserved.
4
5
  * Written by David Howells (dhowells@redhat.com)
5
- *
6
- * This program is free software; you can redistribute it and/or
7
- * modify it under the terms of the GNU General Public License
8
- * as published by the Free Software Foundation; either version
9
- * 2 of the License, or (at your option) any later version.
10
6
  */
11
7
 
12
8
 #define FSCACHE_DEBUG_LEVEL CACHE
..
..
@@ -45,8 +41,6 @@
45
41
 struct workqueue_struct *fscache_object_wq;
46
42
 struct workqueue_struct *fscache_op_wq;
47
43
 
48
-DEFINE_PER_CPU(wait_queue_head_t, fscache_object_cong_wait);
49
-
50
44
 /* these values serve as lower bounds, will be adjusted in fscache_init() */
51
45
 static unsigned fscache_object_max_active = 4;
52
46
 static unsigned fscache_op_max_active = 2;
..
..
@@ -55,8 +49,7 @@
55
49
 static struct ctl_table_header *fscache_sysctl_header;
56
50
 
57
51
 static int fscache_max_active_sysctl(struct ctl_table *table, int write,
58
-				     void __user *buffer,
59
-				     size_t *lenp, loff_t *ppos)
52
+				     void *buffer, size_t *lenp, loff_t *ppos)
60
53
 {
61
54
 	struct workqueue_struct **wqp = table->extra1;
62
55
 	unsigned int *datap = table->data;
..
..
@@ -143,7 +136,6 @@
143
136
 static int __init fscache_init(void)
144
137
 {
145
138
 	unsigned int nr_cpus = num_possible_cpus();
146
-	unsigned int cpu;
147
139
 	int ret;
148
140
 
149
141
 	fscache_object_max_active =
..
..
@@ -165,9 +157,6 @@
165
157
 					fscache_op_max_active);
166
158
 	if (!fscache_op_wq)
167
159
 		goto error_op_wq;
168
-
169
-	for_each_possible_cpu(cpu)
170
-		init_waitqueue_head(&per_cpu(fscache_object_cong_wait, cpu));
171
160
 
172
161
 	ret = fscache_proc_init();
173
162
 	if (ret < 0)