^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) **
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) ** Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) **
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) **
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "dlm_internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "lockspace.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "member.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "recoverd.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "dir.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "lowcomms.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "config.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "memory.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "lock.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "recover.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include "requestqueue.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include "user.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "ast.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static int ls_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static struct mutex ls_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static struct list_head lslist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static spinlock_t lslist_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static struct task_struct * scand_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static ssize_t dlm_control_store(struct dlm_ls *ls, const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) ssize_t ret = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) int n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) int rc = kstrtoint(buf, 0, &n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ls = dlm_find_lockspace_local(ls->ls_local_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (!ls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) switch (n) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) dlm_ls_stop(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) dlm_ls_start(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) dlm_put_lockspace(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static ssize_t dlm_event_store(struct dlm_ls *ls, const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) int rc = kstrtoint(buf, 0, &ls->ls_uevent_result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) set_bit(LSFL_UEVENT_WAIT, &ls->ls_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) wake_up(&ls->ls_uevent_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static ssize_t dlm_id_show(struct dlm_ls *ls, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return snprintf(buf, PAGE_SIZE, "%u\n", ls->ls_global_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static ssize_t dlm_id_store(struct dlm_ls *ls, const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) int rc = kstrtouint(buf, 0, &ls->ls_global_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return len;
^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 ssize_t dlm_nodir_show(struct dlm_ls *ls, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return snprintf(buf, PAGE_SIZE, "%u\n", dlm_no_directory(ls));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static ssize_t dlm_nodir_store(struct dlm_ls *ls, const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) int rc = kstrtoint(buf, 0, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (val == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) set_bit(LSFL_NODIR, &ls->ls_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static ssize_t dlm_recover_status_show(struct dlm_ls *ls, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) uint32_t status = dlm_recover_status(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) return snprintf(buf, PAGE_SIZE, "%x\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static ssize_t dlm_recover_nodeid_show(struct dlm_ls *ls, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return snprintf(buf, PAGE_SIZE, "%d\n", ls->ls_recover_nodeid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct dlm_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct attribute attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) ssize_t (*show)(struct dlm_ls *, char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) ssize_t (*store)(struct dlm_ls *, const char *, size_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static struct dlm_attr dlm_attr_control = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .attr = {.name = "control", .mode = S_IWUSR},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .store = dlm_control_store
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static struct dlm_attr dlm_attr_event = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .attr = {.name = "event_done", .mode = S_IWUSR},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .store = dlm_event_store
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static struct dlm_attr dlm_attr_id = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .attr = {.name = "id", .mode = S_IRUGO | S_IWUSR},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) .show = dlm_id_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) .store = dlm_id_store
^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) static struct dlm_attr dlm_attr_nodir = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) .attr = {.name = "nodir", .mode = S_IRUGO | S_IWUSR},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) .show = dlm_nodir_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .store = dlm_nodir_store
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static struct dlm_attr dlm_attr_recover_status = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) .attr = {.name = "recover_status", .mode = S_IRUGO},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .show = dlm_recover_status_show
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static struct dlm_attr dlm_attr_recover_nodeid = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .attr = {.name = "recover_nodeid", .mode = S_IRUGO},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .show = dlm_recover_nodeid_show
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static struct attribute *dlm_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) &dlm_attr_control.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) &dlm_attr_event.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) &dlm_attr_id.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) &dlm_attr_nodir.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) &dlm_attr_recover_status.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) &dlm_attr_recover_nodeid.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) ATTRIBUTE_GROUPS(dlm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) static ssize_t dlm_attr_show(struct kobject *kobj, struct attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct dlm_ls *ls = container_of(kobj, struct dlm_ls, ls_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) struct dlm_attr *a = container_of(attr, struct dlm_attr, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) return a->show ? a->show(ls, buf) : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static ssize_t dlm_attr_store(struct kobject *kobj, struct attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct dlm_ls *ls = container_of(kobj, struct dlm_ls, ls_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) struct dlm_attr *a = container_of(attr, struct dlm_attr, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) return a->store ? a->store(ls, buf, len) : len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static void lockspace_kobj_release(struct kobject *k)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) struct dlm_ls *ls = container_of(k, struct dlm_ls, ls_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) kfree(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) static const struct sysfs_ops dlm_attr_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .show = dlm_attr_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) .store = dlm_attr_store,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static struct kobj_type dlm_ktype = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) .default_groups = dlm_groups,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) .sysfs_ops = &dlm_attr_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) .release = lockspace_kobj_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static struct kset *dlm_kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) static int do_uevent(struct dlm_ls *ls, int in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) kobject_uevent(&ls->ls_kobj, KOBJ_ONLINE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) kobject_uevent(&ls->ls_kobj, KOBJ_OFFLINE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) log_rinfo(ls, "%s the lockspace group...", in ? "joining" : "leaving");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) /* dlm_controld will see the uevent, do the necessary group management
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) and then write to sysfs to wake us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) wait_event(ls->ls_uevent_wait,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) test_and_clear_bit(LSFL_UEVENT_WAIT, &ls->ls_flags));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) log_rinfo(ls, "group event done %d", ls->ls_uevent_result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return ls->ls_uevent_result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) static int dlm_uevent(struct kset *kset, struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) struct kobj_uevent_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct dlm_ls *ls = container_of(kobj, struct dlm_ls, ls_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) add_uevent_var(env, "LOCKSPACE=%s", ls->ls_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) static const struct kset_uevent_ops dlm_uevent_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) .uevent = dlm_uevent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) int __init dlm_lockspace_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) ls_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) mutex_init(&ls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) INIT_LIST_HEAD(&lslist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) spin_lock_init(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) dlm_kset = kset_create_and_add("dlm", &dlm_uevent_ops, kernel_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) if (!dlm_kset) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) printk(KERN_WARNING "%s: can not create kset\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) void dlm_lockspace_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) kset_unregister(dlm_kset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) static struct dlm_ls *find_ls_to_scan(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) struct dlm_ls *ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) list_for_each_entry(ls, &lslist, ls_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) if (time_after_eq(jiffies, ls->ls_scan_time +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) dlm_config.ci_scan_secs * HZ)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) return ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) static int dlm_scand(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) struct dlm_ls *ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) while (!kthread_should_stop()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) ls = find_ls_to_scan();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (ls) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) if (dlm_lock_recovery_try(ls)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) ls->ls_scan_time = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) dlm_scan_rsbs(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) dlm_scan_timeout(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) dlm_scan_waiters(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) dlm_unlock_recovery(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) ls->ls_scan_time += HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) schedule_timeout_interruptible(dlm_config.ci_scan_secs * HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) static int dlm_scand_start(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) struct task_struct *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) p = kthread_run(dlm_scand, NULL, "dlm_scand");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) if (IS_ERR(p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) error = PTR_ERR(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) scand_task = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) static void dlm_scand_stop(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) kthread_stop(scand_task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) struct dlm_ls *dlm_find_lockspace_global(uint32_t id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) struct dlm_ls *ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) list_for_each_entry(ls, &lslist, ls_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) if (ls->ls_global_id == id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) ls->ls_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) ls = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct dlm_ls *dlm_find_lockspace_local(dlm_lockspace_t *lockspace)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct dlm_ls *ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) list_for_each_entry(ls, &lslist, ls_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (ls->ls_local_handle == lockspace) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) ls->ls_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) ls = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) return ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) struct dlm_ls *dlm_find_lockspace_device(int minor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) struct dlm_ls *ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) list_for_each_entry(ls, &lslist, ls_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (ls->ls_device.minor == minor) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) ls->ls_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) ls = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) void dlm_put_lockspace(struct dlm_ls *ls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) ls->ls_count--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static void remove_lockspace(struct dlm_ls *ls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (ls->ls_count == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) WARN_ON(ls->ls_create_count != 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) list_del(&ls->ls_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) ssleep(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) static int threads_start(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) error = dlm_scand_start();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) log_print("cannot start dlm_scand thread %d", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) /* Thread for sending/receiving messages for all lockspace's */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) error = dlm_lowcomms_start();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) log_print("cannot start dlm lowcomms %d", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) goto scand_fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) scand_fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) dlm_scand_stop();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) static void threads_stop(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) dlm_scand_stop();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) dlm_lowcomms_stop();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) static int new_lockspace(const char *name, const char *cluster,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) uint32_t flags, int lvblen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) const struct dlm_lockspace_ops *ops, void *ops_arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) int *ops_result, dlm_lockspace_t **lockspace)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) struct dlm_ls *ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) int i, size, error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) int do_unreg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) int namelen = strlen(name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (namelen > DLM_LOCKSPACE_LEN || namelen == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (!lvblen || (lvblen % 8))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if (!try_module_get(THIS_MODULE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) if (!dlm_user_daemon_available()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) log_print("dlm user daemon not available");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) error = -EUNATCH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (ops && ops_result) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) if (!dlm_config.ci_recover_callbacks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) *ops_result = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) *ops_result = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (!cluster)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) log_print("dlm cluster name '%s' is being used without an application provided cluster name",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) dlm_config.ci_cluster_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) if (dlm_config.ci_recover_callbacks && cluster &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) strncmp(cluster, dlm_config.ci_cluster_name, DLM_LOCKSPACE_LEN)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) log_print("dlm cluster name '%s' does not match "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) "the application cluster name '%s'",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) dlm_config.ci_cluster_name, cluster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) error = -EBADR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) list_for_each_entry(ls, &lslist, ls_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) WARN_ON(ls->ls_create_count <= 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (ls->ls_namelen != namelen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (memcmp(ls->ls_name, name, namelen))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (flags & DLM_LSFL_NEWEXCL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) error = -EEXIST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) ls->ls_create_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) *lockspace = ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) error = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) ls = kzalloc(sizeof(struct dlm_ls) + namelen, GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (!ls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) memcpy(ls->ls_name, name, namelen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) ls->ls_namelen = namelen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) ls->ls_lvblen = lvblen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) ls->ls_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) ls->ls_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) ls->ls_scan_time = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) if (ops && dlm_config.ci_recover_callbacks) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) ls->ls_ops = ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) ls->ls_ops_arg = ops_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) if (flags & DLM_LSFL_TIMEWARN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) set_bit(LSFL_TIMEWARN, &ls->ls_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) /* ls_exflags are forced to match among nodes, and we don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) need to require all nodes to have some flags set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) ls->ls_exflags = (flags & ~(DLM_LSFL_TIMEWARN | DLM_LSFL_FS |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) DLM_LSFL_NEWEXCL));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) size = dlm_config.ci_rsbtbl_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) ls->ls_rsbtbl_size = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) ls->ls_rsbtbl = vmalloc(array_size(size, sizeof(struct dlm_rsbtable)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) if (!ls->ls_rsbtbl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) goto out_lsfree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) for (i = 0; i < size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) ls->ls_rsbtbl[i].keep.rb_node = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) ls->ls_rsbtbl[i].toss.rb_node = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) spin_lock_init(&ls->ls_rsbtbl[i].lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) spin_lock_init(&ls->ls_remove_spin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) for (i = 0; i < DLM_REMOVE_NAMES_MAX; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) ls->ls_remove_names[i] = kzalloc(DLM_RESNAME_MAXLEN+1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) if (!ls->ls_remove_names[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) goto out_rsbtbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) idr_init(&ls->ls_lkbidr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) spin_lock_init(&ls->ls_lkbidr_spin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) INIT_LIST_HEAD(&ls->ls_waiters);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) mutex_init(&ls->ls_waiters_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) INIT_LIST_HEAD(&ls->ls_orphans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) mutex_init(&ls->ls_orphans_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) INIT_LIST_HEAD(&ls->ls_timeout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) mutex_init(&ls->ls_timeout_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) INIT_LIST_HEAD(&ls->ls_new_rsb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) spin_lock_init(&ls->ls_new_rsb_spin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) INIT_LIST_HEAD(&ls->ls_nodes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) INIT_LIST_HEAD(&ls->ls_nodes_gone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) ls->ls_num_nodes = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) ls->ls_low_nodeid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) ls->ls_total_weight = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) ls->ls_node_array = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) memset(&ls->ls_stub_rsb, 0, sizeof(struct dlm_rsb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) ls->ls_stub_rsb.res_ls = ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) ls->ls_debug_rsb_dentry = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) ls->ls_debug_waiters_dentry = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) init_waitqueue_head(&ls->ls_uevent_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) ls->ls_uevent_result = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) init_completion(&ls->ls_members_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) ls->ls_members_result = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) mutex_init(&ls->ls_cb_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) INIT_LIST_HEAD(&ls->ls_cb_delay);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) ls->ls_recoverd_task = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) mutex_init(&ls->ls_recoverd_active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) spin_lock_init(&ls->ls_recover_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) spin_lock_init(&ls->ls_rcom_spin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) get_random_bytes(&ls->ls_rcom_seq, sizeof(uint64_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) ls->ls_recover_status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) ls->ls_recover_seq = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) ls->ls_recover_args = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) init_rwsem(&ls->ls_in_recovery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) init_rwsem(&ls->ls_recv_active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) INIT_LIST_HEAD(&ls->ls_requestqueue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) mutex_init(&ls->ls_requestqueue_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) mutex_init(&ls->ls_clear_proc_locks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) ls->ls_recover_buf = kmalloc(dlm_config.ci_buffer_size, GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (!ls->ls_recover_buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) goto out_lkbidr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) ls->ls_slot = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) ls->ls_num_slots = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) ls->ls_slots_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) ls->ls_slots = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) INIT_LIST_HEAD(&ls->ls_recover_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) spin_lock_init(&ls->ls_recover_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) idr_init(&ls->ls_recover_idr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) spin_lock_init(&ls->ls_recover_idr_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) ls->ls_recover_list_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) ls->ls_local_handle = ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) init_waitqueue_head(&ls->ls_wait_general);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) INIT_LIST_HEAD(&ls->ls_root_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) init_rwsem(&ls->ls_root_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) ls->ls_create_count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) list_add(&ls->ls_list, &lslist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) if (flags & DLM_LSFL_FS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) error = dlm_callback_start(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) log_error(ls, "can't start dlm_callback %d", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) goto out_delist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) init_waitqueue_head(&ls->ls_recover_lock_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) * Once started, dlm_recoverd first looks for ls in lslist, then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) * initializes ls_in_recovery as locked in "down" mode. We need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) * to wait for the wakeup from dlm_recoverd because in_recovery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) * has to start out in down mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) error = dlm_recoverd_start(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) log_error(ls, "can't start dlm_recoverd %d", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) goto out_callback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) wait_event(ls->ls_recover_lock_wait,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) test_bit(LSFL_RECOVER_LOCK, &ls->ls_flags));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) /* let kobject handle freeing of ls if there's an error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) do_unreg = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) ls->ls_kobj.kset = dlm_kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) error = kobject_init_and_add(&ls->ls_kobj, &dlm_ktype, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) "%s", ls->ls_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) goto out_recoverd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) kobject_uevent(&ls->ls_kobj, KOBJ_ADD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) /* This uevent triggers dlm_controld in userspace to add us to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) group of nodes that are members of this lockspace (managed by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) cluster infrastructure.) Once it's done that, it tells us who the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) current lockspace members are (via configfs) and then tells the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) lockspace to start running (via sysfs) in dlm_ls_start(). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) error = do_uevent(ls, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) goto out_recoverd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) wait_for_completion(&ls->ls_members_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) error = ls->ls_members_result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) goto out_members;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) dlm_create_debug_file(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) log_rinfo(ls, "join complete");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) *lockspace = ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) out_members:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) do_uevent(ls, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) dlm_clear_members(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) kfree(ls->ls_node_array);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) out_recoverd:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) dlm_recoverd_stop(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) out_callback:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) dlm_callback_stop(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) out_delist:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) list_del(&ls->ls_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) idr_destroy(&ls->ls_recover_idr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) kfree(ls->ls_recover_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) out_lkbidr:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) idr_destroy(&ls->ls_lkbidr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) out_rsbtbl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) for (i = 0; i < DLM_REMOVE_NAMES_MAX; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) kfree(ls->ls_remove_names[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) vfree(ls->ls_rsbtbl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) out_lsfree:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) if (do_unreg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) kobject_put(&ls->ls_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) kfree(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) module_put(THIS_MODULE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) int dlm_new_lockspace(const char *name, const char *cluster,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) uint32_t flags, int lvblen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) const struct dlm_lockspace_ops *ops, void *ops_arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) int *ops_result, dlm_lockspace_t **lockspace)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) mutex_lock(&ls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) if (!ls_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) error = threads_start();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) error = new_lockspace(name, cluster, flags, lvblen, ops, ops_arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) ops_result, lockspace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) if (!error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) ls_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) if (error > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) if (!ls_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) threads_stop();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) mutex_unlock(&ls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) static int lkb_idr_is_local(int id, void *p, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) struct dlm_lkb *lkb = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) return lkb->lkb_nodeid == 0 && lkb->lkb_grmode != DLM_LOCK_IV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) static int lkb_idr_is_any(int id, void *p, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) static int lkb_idr_free(int id, void *p, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) struct dlm_lkb *lkb = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) if (lkb->lkb_lvbptr && lkb->lkb_flags & DLM_IFL_MSTCPY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) dlm_free_lvb(lkb->lkb_lvbptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) dlm_free_lkb(lkb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) /* NOTE: We check the lkbidr here rather than the resource table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) This is because there may be LKBs queued as ASTs that have been unlinked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) from their RSBs and are pending deletion once the AST has been delivered */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) static int lockspace_busy(struct dlm_ls *ls, int force)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) int rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) spin_lock(&ls->ls_lkbidr_spin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) if (force == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) rv = idr_for_each(&ls->ls_lkbidr, lkb_idr_is_any, ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) } else if (force == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) rv = idr_for_each(&ls->ls_lkbidr, lkb_idr_is_local, ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) rv = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) spin_unlock(&ls->ls_lkbidr_spin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) static int release_lockspace(struct dlm_ls *ls, int force)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) struct dlm_rsb *rsb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) struct rb_node *n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) int i, busy, rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) busy = lockspace_busy(ls, force);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) if (ls->ls_create_count == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) if (busy) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) rv = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) /* remove_lockspace takes ls off lslist */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) ls->ls_create_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) rv = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) } else if (ls->ls_create_count > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) rv = --ls->ls_create_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) rv = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) if (rv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) log_debug(ls, "release_lockspace no remove %d", rv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) dlm_device_deregister(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) if (force < 3 && dlm_user_daemon_available())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) do_uevent(ls, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) dlm_recoverd_stop(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) dlm_callback_stop(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) remove_lockspace(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) dlm_delete_debug_file(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) idr_destroy(&ls->ls_recover_idr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) kfree(ls->ls_recover_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) * Free all lkb's in idr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) idr_for_each(&ls->ls_lkbidr, lkb_idr_free, ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) idr_destroy(&ls->ls_lkbidr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) * Free all rsb's on rsbtbl[] lists
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) for (i = 0; i < ls->ls_rsbtbl_size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) while ((n = rb_first(&ls->ls_rsbtbl[i].keep))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) rsb = rb_entry(n, struct dlm_rsb, res_hashnode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) rb_erase(n, &ls->ls_rsbtbl[i].keep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) dlm_free_rsb(rsb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) while ((n = rb_first(&ls->ls_rsbtbl[i].toss))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) rsb = rb_entry(n, struct dlm_rsb, res_hashnode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) rb_erase(n, &ls->ls_rsbtbl[i].toss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) dlm_free_rsb(rsb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) vfree(ls->ls_rsbtbl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) for (i = 0; i < DLM_REMOVE_NAMES_MAX; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) kfree(ls->ls_remove_names[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) while (!list_empty(&ls->ls_new_rsb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) rsb = list_first_entry(&ls->ls_new_rsb, struct dlm_rsb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) res_hashchain);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) list_del(&rsb->res_hashchain);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) dlm_free_rsb(rsb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) * Free structures on any other lists
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) dlm_purge_requestqueue(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) kfree(ls->ls_recover_args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) dlm_clear_members(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) dlm_clear_members_gone(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) kfree(ls->ls_node_array);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) log_rinfo(ls, "release_lockspace final free");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) kobject_put(&ls->ls_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) /* The ls structure will be freed when the kobject is done with */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) module_put(THIS_MODULE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) * Called when a system has released all its locks and is not going to use the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) * lockspace any longer. We free everything we're managing for this lockspace.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) * Remaining nodes will go through the recovery process as if we'd died. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) * lockspace must continue to function as usual, participating in recoveries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) * until this returns.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) * Force has 4 possible values:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) * 0 - don't destroy locksapce if it has any LKBs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) * 1 - destroy lockspace if it has remote LKBs but not if it has local LKBs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) * 2 - destroy lockspace regardless of LKBs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) * 3 - destroy lockspace as part of a forced shutdown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) int dlm_release_lockspace(void *lockspace, int force)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) struct dlm_ls *ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) ls = dlm_find_lockspace_local(lockspace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) if (!ls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) dlm_put_lockspace(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) mutex_lock(&ls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) error = release_lockspace(ls, force);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) if (!error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) ls_count--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) if (!ls_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) threads_stop();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) mutex_unlock(&ls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) void dlm_stop_lockspaces(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) struct dlm_ls *ls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) restart:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) spin_lock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) list_for_each_entry(ls, &lslist, ls_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) if (!test_bit(LSFL_RUNNING, &ls->ls_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) log_error(ls, "no userland control daemon, stopping lockspace");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) dlm_ls_stop(ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) goto restart;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) spin_unlock(&lslist_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) if (count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) log_print("dlm user daemon left %d lockspaces", count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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