^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /* General filesystem local caching manager
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2004-2007 Red Hat, Inc. All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Written by David Howells (dhowells@redhat.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #define FSCACHE_DEBUG_LEVEL CACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define CREATE_TRACE_POINTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) MODULE_DESCRIPTION("FS Cache Manager");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) MODULE_AUTHOR("Red Hat, Inc.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) unsigned fscache_defer_lookup = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) module_param_named(defer_lookup, fscache_defer_lookup, uint,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) S_IWUSR | S_IRUGO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) MODULE_PARM_DESC(fscache_defer_lookup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) "Defer cookie lookup to background thread");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) unsigned fscache_defer_create = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) module_param_named(defer_create, fscache_defer_create, uint,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) S_IWUSR | S_IRUGO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) MODULE_PARM_DESC(fscache_defer_create,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) "Defer cookie creation to background thread");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) unsigned fscache_debug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) module_param_named(debug, fscache_debug, uint,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) S_IWUSR | S_IRUGO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) MODULE_PARM_DESC(fscache_debug,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) "FS-Cache debugging mask");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct kobject *fscache_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct workqueue_struct *fscache_object_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct workqueue_struct *fscache_op_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) DEFINE_PER_CPU(wait_queue_head_t, fscache_object_cong_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /* these values serve as lower bounds, will be adjusted in fscache_init() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static unsigned fscache_object_max_active = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static unsigned fscache_op_max_active = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #ifdef CONFIG_SYSCTL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static struct ctl_table_header *fscache_sysctl_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static int fscache_max_active_sysctl(struct ctl_table *table, int write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) void *buffer, size_t *lenp, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct workqueue_struct **wqp = table->extra1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) unsigned int *datap = table->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) ret = proc_dointvec(table, write, buffer, lenp, ppos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if (ret == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) workqueue_set_max_active(*wqp, *datap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static struct ctl_table fscache_sysctls[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) .procname = "object_max_active",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .data = &fscache_object_max_active,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .maxlen = sizeof(unsigned),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .proc_handler = fscache_max_active_sysctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .extra1 = &fscache_object_wq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .procname = "operation_max_active",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .data = &fscache_op_max_active,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .maxlen = sizeof(unsigned),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .proc_handler = fscache_max_active_sysctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .extra1 = &fscache_op_wq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static struct ctl_table fscache_sysctls_root[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .procname = "fscache",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .mode = 0555,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .child = fscache_sysctls,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * Mixing scores (in bits) for (7,20):
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * Input delta: 1-bit 2-bit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * 1 round: 330.3 9201.6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * 2 rounds: 1246.4 25475.4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * 3 rounds: 1907.1 31295.1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * 4 rounds: 2042.3 31718.6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * Perfect: 2048 31744
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * (32*64) (32*31/2 * 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define HASH_MIX(x, y, a) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) ( x ^= (a), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) y ^= x, x = rol32(x, 7),\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) x += y, y = rol32(y,20),\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) y *= 9 )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static inline unsigned int fold_hash(unsigned long x, unsigned long y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /* Use arch-optimized multiply if one exists */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return __hash_32(y ^ __hash_32(x));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * Generate a hash. This is derived from full_name_hash(), but we want to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * sure it is arch independent and that it doesn't change as bits of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * computed hash value might appear on disk. The caller also guarantees that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * the hashed data will be a series of aligned 32-bit words.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) unsigned int fscache_hash(unsigned int salt, unsigned int *data, unsigned int n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) unsigned int a, x = 0, y = salt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) for (; n; n--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) a = *data++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) HASH_MIX(x, y, a);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return fold_hash(x, y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * initialise the fs caching module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static int __init fscache_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) unsigned int nr_cpus = num_possible_cpus();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) unsigned int cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) fscache_object_max_active =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) clamp_val(nr_cpus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) fscache_object_max_active, WQ_UNBOUND_MAX_ACTIVE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) fscache_object_wq = alloc_workqueue("fscache_object", WQ_UNBOUND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) fscache_object_max_active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (!fscache_object_wq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) goto error_object_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) fscache_op_max_active =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) clamp_val(fscache_object_max_active / 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) fscache_op_max_active, WQ_UNBOUND_MAX_ACTIVE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) fscache_op_wq = alloc_workqueue("fscache_operation", WQ_UNBOUND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) fscache_op_max_active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) if (!fscache_op_wq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) goto error_op_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) for_each_possible_cpu(cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) init_waitqueue_head(&per_cpu(fscache_object_cong_wait, cpu));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) ret = fscache_proc_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) goto error_proc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) #ifdef CONFIG_SYSCTL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) fscache_sysctl_header = register_sysctl_table(fscache_sysctls_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (!fscache_sysctl_header)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) goto error_sysctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) fscache_cookie_jar = kmem_cache_create("fscache_cookie_jar",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) sizeof(struct fscache_cookie),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 0, 0, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (!fscache_cookie_jar) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) pr_notice("Failed to allocate a cookie jar\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) goto error_cookie_jar;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) fscache_root = kobject_create_and_add("fscache", kernel_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) if (!fscache_root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) goto error_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) pr_notice("Loaded\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) error_kobj:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) kmem_cache_destroy(fscache_cookie_jar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) error_cookie_jar:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) #ifdef CONFIG_SYSCTL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) unregister_sysctl_table(fscache_sysctl_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) error_sysctl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) fscache_proc_cleanup();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) error_proc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) destroy_workqueue(fscache_op_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) error_op_wq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) destroy_workqueue(fscache_object_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) error_object_wq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) fs_initcall(fscache_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * clean up on module removal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) static void __exit fscache_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) _enter("");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) kobject_put(fscache_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) kmem_cache_destroy(fscache_cookie_jar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) #ifdef CONFIG_SYSCTL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) unregister_sysctl_table(fscache_sysctl_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) fscache_proc_cleanup();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) destroy_workqueue(fscache_op_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) destroy_workqueue(fscache_object_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) pr_notice("Unloaded\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) module_exit(fscache_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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