^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) /* -*- mode: c; c-basic-offset: 8; -*-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * vim: noexpandtab sw=8 ts=8 sts=0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * dlmdebug.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * debug functionality for the dlm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (C) 2004, 2008 Oracle. All rights reserved.
^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/types.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/highmem.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/sysctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "../cluster/heartbeat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "../cluster/nodemanager.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "../cluster/tcp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include "dlmapi.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include "dlmcommon.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "dlmdomain.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "dlmdebug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define MLOG_MASK_PREFIX ML_DLM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include "../cluster/masklog.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static int stringify_lockname(const char *lockname, int locklen, char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) int len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) void dlm_print_one_lock_resource(struct dlm_lock_resource *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) spin_lock(&res->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) __dlm_print_one_lock_resource(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) spin_unlock(&res->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static void dlm_print_lockres_refmap(struct dlm_lock_resource *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) int bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) assert_spin_locked(&res->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) printk(" refmap nodes: [ ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) bit = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) bit = find_next_bit(res->refmap, O2NM_MAX_NODES, bit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) if (bit >= O2NM_MAX_NODES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) printk("%u ", bit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) bit++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) printk("], inflight=%u\n", res->inflight_locks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static void __dlm_print_lock(struct dlm_lock *lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) spin_lock(&lock->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) printk(" type=%d, conv=%d, node=%u, cookie=%u:%llu, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) "ref=%u, ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c), "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) "pending=(conv=%c,lock=%c,cancel=%c,unlock=%c)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) lock->ml.type, lock->ml.convert_type, lock->ml.node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) kref_read(&lock->lock_refs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) (list_empty(&lock->ast_list) ? 'y' : 'n'),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) (lock->ast_pending ? 'y' : 'n'),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) (list_empty(&lock->bast_list) ? 'y' : 'n'),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) (lock->bast_pending ? 'y' : 'n'),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) (lock->convert_pending ? 'y' : 'n'),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) (lock->lock_pending ? 'y' : 'n'),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) (lock->cancel_pending ? 'y' : 'n'),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) (lock->unlock_pending ? 'y' : 'n'));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) spin_unlock(&lock->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) void __dlm_print_one_lock_resource(struct dlm_lock_resource *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct dlm_lock *lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) char buf[DLM_LOCKID_NAME_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) assert_spin_locked(&res->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) stringify_lockname(res->lockname.name, res->lockname.len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) printk("lockres: %s, owner=%u, state=%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) buf, res->owner, res->state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) printk(" last used: %lu, refcnt: %u, on purge list: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) res->last_used, kref_read(&res->refs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) list_empty(&res->purge) ? "no" : "yes");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) printk(" on dirty list: %s, on reco list: %s, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) "migrating pending: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) list_empty(&res->dirty) ? "no" : "yes",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) list_empty(&res->recovering) ? "no" : "yes",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) res->migration_pending ? "yes" : "no");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) printk(" inflight locks: %d, asts reserved: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) res->inflight_locks, atomic_read(&res->asts_reserved));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) dlm_print_lockres_refmap(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) printk(" granted queue:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) list_for_each_entry(lock, &res->granted, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) __dlm_print_lock(lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) printk(" converting queue:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) list_for_each_entry(lock, &res->converting, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) __dlm_print_lock(lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) printk(" blocked queue:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) list_for_each_entry(lock, &res->blocked, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) __dlm_print_lock(lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^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) void dlm_print_one_lock(struct dlm_lock *lockid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) dlm_print_one_lock_resource(lockid->lockres);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) EXPORT_SYMBOL_GPL(dlm_print_one_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static const char *dlm_errnames[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) [DLM_NORMAL] = "DLM_NORMAL",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) [DLM_GRANTED] = "DLM_GRANTED",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) [DLM_DENIED] = "DLM_DENIED",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) [DLM_DENIED_NOLOCKS] = "DLM_DENIED_NOLOCKS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) [DLM_WORKING] = "DLM_WORKING",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) [DLM_BLOCKED] = "DLM_BLOCKED",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) [DLM_BLOCKED_ORPHAN] = "DLM_BLOCKED_ORPHAN",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) [DLM_DENIED_GRACE_PERIOD] = "DLM_DENIED_GRACE_PERIOD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) [DLM_SYSERR] = "DLM_SYSERR",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) [DLM_NOSUPPORT] = "DLM_NOSUPPORT",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) [DLM_CANCELGRANT] = "DLM_CANCELGRANT",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) [DLM_IVLOCKID] = "DLM_IVLOCKID",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) [DLM_SYNC] = "DLM_SYNC",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) [DLM_BADTYPE] = "DLM_BADTYPE",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) [DLM_BADRESOURCE] = "DLM_BADRESOURCE",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) [DLM_MAXHANDLES] = "DLM_MAXHANDLES",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) [DLM_NOCLINFO] = "DLM_NOCLINFO",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) [DLM_NOLOCKMGR] = "DLM_NOLOCKMGR",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) [DLM_NOPURGED] = "DLM_NOPURGED",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) [DLM_BADARGS] = "DLM_BADARGS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) [DLM_VOID] = "DLM_VOID",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) [DLM_NOTQUEUED] = "DLM_NOTQUEUED",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) [DLM_IVBUFLEN] = "DLM_IVBUFLEN",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) [DLM_CVTUNGRANT] = "DLM_CVTUNGRANT",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) [DLM_BADPARAM] = "DLM_BADPARAM",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) [DLM_VALNOTVALID] = "DLM_VALNOTVALID",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) [DLM_REJECTED] = "DLM_REJECTED",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) [DLM_ABORT] = "DLM_ABORT",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) [DLM_CANCEL] = "DLM_CANCEL",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) [DLM_IVRESHANDLE] = "DLM_IVRESHANDLE",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) [DLM_DEADLOCK] = "DLM_DEADLOCK",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) [DLM_DENIED_NOASTS] = "DLM_DENIED_NOASTS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) [DLM_FORWARD] = "DLM_FORWARD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) [DLM_TIMEOUT] = "DLM_TIMEOUT",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) [DLM_IVGROUPID] = "DLM_IVGROUPID",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) [DLM_VERS_CONFLICT] = "DLM_VERS_CONFLICT",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) [DLM_BAD_DEVICE_PATH] = "DLM_BAD_DEVICE_PATH",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) [DLM_NO_DEVICE_PERMISSION] = "DLM_NO_DEVICE_PERMISSION",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) [DLM_NO_CONTROL_DEVICE ] = "DLM_NO_CONTROL_DEVICE ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) [DLM_RECOVERING] = "DLM_RECOVERING",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) [DLM_MIGRATING] = "DLM_MIGRATING",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) [DLM_MAXSTATS] = "DLM_MAXSTATS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) static const char *dlm_errmsgs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) [DLM_NORMAL] = "request in progress",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) [DLM_GRANTED] = "request granted",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) [DLM_DENIED] = "request denied",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) [DLM_DENIED_NOLOCKS] = "request denied, out of system resources",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) [DLM_WORKING] = "async request in progress",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) [DLM_BLOCKED] = "lock request blocked",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) [DLM_BLOCKED_ORPHAN] = "lock request blocked by a orphan lock",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) [DLM_DENIED_GRACE_PERIOD] = "topological change in progress",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) [DLM_SYSERR] = "system error",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) [DLM_NOSUPPORT] = "unsupported",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) [DLM_CANCELGRANT] = "can't cancel convert: already granted",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) [DLM_IVLOCKID] = "bad lockid",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) [DLM_SYNC] = "synchronous request granted",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) [DLM_BADTYPE] = "bad resource type",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) [DLM_BADRESOURCE] = "bad resource handle",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) [DLM_MAXHANDLES] = "no more resource handles",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) [DLM_NOCLINFO] = "can't contact cluster manager",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) [DLM_NOLOCKMGR] = "can't contact lock manager",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) [DLM_NOPURGED] = "can't contact purge daemon",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) [DLM_BADARGS] = "bad api args",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) [DLM_VOID] = "no status",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) [DLM_NOTQUEUED] = "NOQUEUE was specified and request failed",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) [DLM_IVBUFLEN] = "invalid resource name length",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) [DLM_CVTUNGRANT] = "attempted to convert ungranted lock",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) [DLM_BADPARAM] = "invalid lock mode specified",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) [DLM_VALNOTVALID] = "value block has been invalidated",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) [DLM_REJECTED] = "request rejected, unrecognized client",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) [DLM_ABORT] = "blocked lock request cancelled",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) [DLM_CANCEL] = "conversion request cancelled",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) [DLM_IVRESHANDLE] = "invalid resource handle",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) [DLM_DEADLOCK] = "deadlock recovery refused this request",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) [DLM_DENIED_NOASTS] = "failed to allocate AST",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) [DLM_FORWARD] = "request must wait for primary's response",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) [DLM_TIMEOUT] = "timeout value for lock has expired",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) [DLM_IVGROUPID] = "invalid group specification",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) [DLM_VERS_CONFLICT] = "version conflicts prevent request handling",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) [DLM_BAD_DEVICE_PATH] = "Locks device does not exist or path wrong",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) [DLM_NO_DEVICE_PERMISSION] = "Client has insufficient perms for device",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) [DLM_NO_CONTROL_DEVICE] = "Cannot set options on opened device ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) [DLM_RECOVERING] = "lock resource being recovered",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) [DLM_MIGRATING] = "lock resource being migrated",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) [DLM_MAXSTATS] = "invalid error number",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) const char *dlm_errmsg(enum dlm_status err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (err >= DLM_MAXSTATS || err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) return dlm_errmsgs[DLM_MAXSTATS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return dlm_errmsgs[err];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) EXPORT_SYMBOL_GPL(dlm_errmsg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) const char *dlm_errname(enum dlm_status err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) if (err >= DLM_MAXSTATS || err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) return dlm_errnames[DLM_MAXSTATS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return dlm_errnames[err];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) EXPORT_SYMBOL_GPL(dlm_errname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /* NOTE: This function converts a lockname into a string. It uses knowledge
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) * of the format of the lockname that should be outside the purview of the dlm.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) * We are adding only to make dlm debugging slightly easier.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * For more on lockname formats, please refer to dlmglue.c and ocfs2_lockid.h.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) static int stringify_lockname(const char *lockname, int locklen, char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) int out = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) __be64 inode_blkno_be;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) #define OCFS2_DENTRY_LOCK_INO_START 18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) if (*lockname == 'N') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) memcpy((__be64 *)&inode_blkno_be,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) (char *)&lockname[OCFS2_DENTRY_LOCK_INO_START],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) sizeof(__be64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) out += scnprintf(buf + out, len - out, "%.*s%08x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) OCFS2_DENTRY_LOCK_INO_START - 1, lockname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) (unsigned int)be64_to_cpu(inode_blkno_be));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) out += scnprintf(buf + out, len - out, "%.*s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) locklen, lockname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) return out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static int stringify_nodemap(unsigned long *nodemap, int maxnodes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) char *buf, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) int out = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) int i = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) while ((i = find_next_bit(nodemap, maxnodes, i + 1)) < maxnodes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) out += scnprintf(buf + out, len - out, "%d ", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) return out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) static int dump_mle(struct dlm_master_list_entry *mle, char *buf, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) int out = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) char *mle_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (mle->type == DLM_MLE_BLOCK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) mle_type = "BLK";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) else if (mle->type == DLM_MLE_MASTER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) mle_type = "MAS";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) mle_type = "MIG";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) out += stringify_lockname(mle->mname, mle->mnamelen, buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) "\t%3s\tmas=%3u\tnew=%3u\tevt=%1d\tuse=%1d\tref=%3d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) mle_type, mle->master, mle->new_master,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) !list_empty(&mle->hb_events),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) !!mle->inuse,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) kref_read(&mle->mle_refs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) out += scnprintf(buf + out, len - out, "Maybe=");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) out += stringify_nodemap(mle->maybe_map, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) out += scnprintf(buf + out, len - out, "Vote=");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) out += stringify_nodemap(mle->vote_map, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) out += scnprintf(buf + out, len - out, "Response=");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) out += stringify_nodemap(mle->response_map, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) out += scnprintf(buf + out, len - out, "Node=");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) out += stringify_nodemap(mle->node_map, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) void dlm_print_one_mle(struct dlm_master_list_entry *mle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) buf = (char *) get_zeroed_page(GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) if (buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) dump_mle(mle, buf, PAGE_SIZE - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) free_page((unsigned long)buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) #ifdef CONFIG_DEBUG_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) static struct dentry *dlm_debugfs_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) #define DLM_DEBUGFS_DIR "o2dlm"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) #define DLM_DEBUGFS_DLM_STATE "dlm_state"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) #define DLM_DEBUGFS_LOCKING_STATE "locking_state"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) #define DLM_DEBUGFS_MLE_STATE "mle_state"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) #define DLM_DEBUGFS_PURGE_LIST "purge_list"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) /* begin - utils funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) static int debug_release(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) free_page((unsigned long)file->private_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) static ssize_t debug_read(struct file *file, char __user *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) size_t nbytes, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) return simple_read_from_buffer(buf, nbytes, ppos, file->private_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) i_size_read(file->f_mapping->host));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) /* end - util funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) /* begin - purge list funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) static int debug_purgelist_print(struct dlm_ctxt *dlm, char *buf, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) struct dlm_lock_resource *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) int out = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) unsigned long total = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) "Dumping Purgelist for Domain: %s\n", dlm->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) spin_lock(&dlm->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) list_for_each_entry(res, &dlm->purge_list, purge) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) ++total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (len - out < 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) spin_lock(&res->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) out += stringify_lockname(res->lockname.name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) res->lockname.len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) out += scnprintf(buf + out, len - out, "\t%ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) (jiffies - res->last_used)/HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) spin_unlock(&res->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) spin_unlock(&dlm->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) out += scnprintf(buf + out, len - out, "Total on list: %lu\n", total);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) return out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) static int debug_purgelist_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct dlm_ctxt *dlm = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) char *buf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) buf = (char *) get_zeroed_page(GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) i_size_write(inode, debug_purgelist_print(dlm, buf, PAGE_SIZE - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) file->private_data = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) bail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) static const struct file_operations debug_purgelist_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) .open = debug_purgelist_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) .release = debug_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) .read = debug_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) .llseek = generic_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) /* end - purge list funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) /* begin - debug mle funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) static int debug_mle_print(struct dlm_ctxt *dlm, char *buf, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) struct dlm_master_list_entry *mle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) struct hlist_head *bucket;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) int i, out = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) unsigned long total = 0, longest = 0, bucket_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) "Dumping MLEs for Domain: %s\n", dlm->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) spin_lock(&dlm->master_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) for (i = 0; i < DLM_HASH_BUCKETS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) bucket = dlm_master_hash(dlm, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) hlist_for_each_entry(mle, bucket, master_hash_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) ++total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) ++bucket_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) if (len - out < 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) out += dump_mle(mle, buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) longest = max(longest, bucket_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) bucket_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) spin_unlock(&dlm->master_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) "Total: %lu, Longest: %lu\n", total, longest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) return out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) static int debug_mle_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) struct dlm_ctxt *dlm = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) char *buf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) buf = (char *) get_zeroed_page(GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) i_size_write(inode, debug_mle_print(dlm, buf, PAGE_SIZE - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) file->private_data = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) bail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) static const struct file_operations debug_mle_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) .open = debug_mle_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) .release = debug_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) .read = debug_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) .llseek = generic_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) /* end - debug mle funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) /* begin - debug lockres funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) static int dump_lock(struct dlm_lock *lock, int list_type, char *buf, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) int out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) #define DEBUG_LOCK_VERSION 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) spin_lock(&lock->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) out = scnprintf(buf, len, "LOCK:%d,%d,%d,%d,%d,%d:%lld,%d,%d,%d,%d,%d,"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) "%d,%d,%d,%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) DEBUG_LOCK_VERSION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) list_type, lock->ml.type, lock->ml.convert_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) lock->ml.node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) !list_empty(&lock->ast_list),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) !list_empty(&lock->bast_list),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) lock->ast_pending, lock->bast_pending,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) lock->convert_pending, lock->lock_pending,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) lock->cancel_pending, lock->unlock_pending,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) kref_read(&lock->lock_refs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) spin_unlock(&lock->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) return out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) static int dump_lockres(struct dlm_lock_resource *res, char *buf, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) struct dlm_lock *lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) int out = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) out += scnprintf(buf + out, len - out, "NAME:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) out += stringify_lockname(res->lockname.name, res->lockname.len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) #define DEBUG_LRES_VERSION 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) "LRES:%d,%d,%d,%ld,%d,%d,%d,%d,%d,%d,%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) DEBUG_LRES_VERSION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) res->owner, res->state, res->last_used,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) !list_empty(&res->purge),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) !list_empty(&res->dirty),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) !list_empty(&res->recovering),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) res->inflight_locks, res->migration_pending,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) atomic_read(&res->asts_reserved),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) kref_read(&res->refs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) /* refmap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) out += scnprintf(buf + out, len - out, "RMAP:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) out += stringify_nodemap(res->refmap, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) /* lvb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) out += scnprintf(buf + out, len - out, "LVBX:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) for (i = 0; i < DLM_LVB_LEN; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) "%02x", (unsigned char)res->lvb[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) /* granted */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) list_for_each_entry(lock, &res->granted, list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) out += dump_lock(lock, 0, buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) /* converting */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) list_for_each_entry(lock, &res->converting, list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) out += dump_lock(lock, 1, buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) /* blocked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) list_for_each_entry(lock, &res->blocked, list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) out += dump_lock(lock, 2, buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) return out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) static void *lockres_seq_start(struct seq_file *m, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) struct debug_lockres *dl = m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) struct dlm_ctxt *dlm = dl->dl_ctxt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) struct dlm_lock_resource *oldres = dl->dl_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) struct dlm_lock_resource *res = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) struct list_head *track_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) spin_lock(&dlm->track_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) if (oldres)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) track_list = &oldres->tracking;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) track_list = &dlm->tracking_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) if (list_empty(track_list)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) dl = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) spin_unlock(&dlm->track_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) list_for_each_entry(res, track_list, tracking) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) if (&res->tracking == &dlm->tracking_list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) res = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) dlm_lockres_get(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) spin_unlock(&dlm->track_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) if (oldres)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) dlm_lockres_put(oldres);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) dl->dl_res = res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) if (res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) spin_lock(&res->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) dump_lockres(res, dl->dl_buf, dl->dl_len - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) spin_unlock(&res->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) dl = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) bail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) /* passed to seq_show */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) return dl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) static void lockres_seq_stop(struct seq_file *m, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) static void *lockres_seq_next(struct seq_file *m, void *v, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) static int lockres_seq_show(struct seq_file *s, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) struct debug_lockres *dl = (struct debug_lockres *)v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) seq_printf(s, "%s", dl->dl_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) static const struct seq_operations debug_lockres_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) .start = lockres_seq_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) .stop = lockres_seq_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) .next = lockres_seq_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) .show = lockres_seq_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) static int debug_lockres_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) struct dlm_ctxt *dlm = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) struct debug_lockres *dl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) void *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) dl = __seq_open_private(file, &debug_lockres_ops, sizeof(*dl));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) if (!dl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) goto bailfree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) dl->dl_len = PAGE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) dl->dl_buf = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) dlm_grab(dlm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) dl->dl_ctxt = dlm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) bailfree:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) bail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) mlog_errno(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) static int debug_lockres_release(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) struct seq_file *seq = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) struct debug_lockres *dl = (struct debug_lockres *)seq->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) if (dl->dl_res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) dlm_lockres_put(dl->dl_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) dlm_put(dl->dl_ctxt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) kfree(dl->dl_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) return seq_release_private(inode, file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) static const struct file_operations debug_lockres_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) .open = debug_lockres_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) .release = debug_lockres_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) /* end - debug lockres funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) /* begin - debug state funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) static int debug_state_print(struct dlm_ctxt *dlm, char *buf, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) int out = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) struct dlm_reco_node_data *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) char *state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) int cur_mles = 0, tot_mles = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) spin_lock(&dlm->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) switch (dlm->dlm_state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) case DLM_CTXT_NEW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) state = "NEW"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) case DLM_CTXT_JOINED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) state = "JOINED"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) case DLM_CTXT_IN_SHUTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) state = "SHUTDOWN"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) case DLM_CTXT_LEAVING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) state = "LEAVING"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) state = "UNKNOWN"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) /* Domain: xxxxxxxxxx Key: 0xdfbac769 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) "Domain: %s Key: 0x%08x Protocol: %d.%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) dlm->name, dlm->key, dlm->dlm_locking_proto.pv_major,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) dlm->dlm_locking_proto.pv_minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) /* Thread Pid: xxx Node: xxx State: xxxxx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) "Thread Pid: %d Node: %d State: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) task_pid_nr(dlm->dlm_thread_task), dlm->node_num, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) /* Number of Joins: xxx Joining Node: xxx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) "Number of Joins: %d Joining Node: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) dlm->num_joins, dlm->joining_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) /* Domain Map: xx xx xx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) out += scnprintf(buf + out, len - out, "Domain Map: ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) out += stringify_nodemap(dlm->domain_map, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) /* Exit Domain Map: xx xx xx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) out += scnprintf(buf + out, len - out, "Exit Domain Map: ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) out += stringify_nodemap(dlm->exit_domain_map, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) /* Live Map: xx xx xx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) out += scnprintf(buf + out, len - out, "Live Map: ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) out += stringify_nodemap(dlm->live_nodes_map, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) /* Lock Resources: xxx (xxx) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) "Lock Resources: %d (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) atomic_read(&dlm->res_cur_count),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) atomic_read(&dlm->res_tot_count));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) for (i = 0; i < DLM_MLE_NUM_TYPES; ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) tot_mles += atomic_read(&dlm->mle_tot_count[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) for (i = 0; i < DLM_MLE_NUM_TYPES; ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) cur_mles += atomic_read(&dlm->mle_cur_count[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) /* MLEs: xxx (xxx) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) "MLEs: %d (%d)\n", cur_mles, tot_mles);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) /* Blocking: xxx (xxx) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) " Blocking: %d (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) atomic_read(&dlm->mle_cur_count[DLM_MLE_BLOCK]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) atomic_read(&dlm->mle_tot_count[DLM_MLE_BLOCK]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) /* Mastery: xxx (xxx) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) " Mastery: %d (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) atomic_read(&dlm->mle_cur_count[DLM_MLE_MASTER]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) atomic_read(&dlm->mle_tot_count[DLM_MLE_MASTER]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) /* Migration: xxx (xxx) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) " Migration: %d (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) atomic_read(&dlm->mle_cur_count[DLM_MLE_MIGRATION]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) atomic_read(&dlm->mle_tot_count[DLM_MLE_MIGRATION]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) /* Lists: Dirty=Empty Purge=InUse PendingASTs=Empty ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) "Lists: Dirty=%s Purge=%s PendingASTs=%s "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) "PendingBASTs=%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) (list_empty(&dlm->dirty_list) ? "Empty" : "InUse"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) (list_empty(&dlm->purge_list) ? "Empty" : "InUse"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) (list_empty(&dlm->pending_asts) ? "Empty" : "InUse"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) (list_empty(&dlm->pending_basts) ? "Empty" : "InUse"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) /* Purge Count: xxx Refs: xxx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) "Purge Count: %d Refs: %d\n", dlm->purge_count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) kref_read(&dlm->dlm_refs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) /* Dead Node: xxx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) "Dead Node: %d\n", dlm->reco.dead_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) /* What about DLM_RECO_STATE_FINALIZE? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) if (dlm->reco.state == DLM_RECO_STATE_ACTIVE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) state = "ACTIVE";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) state = "INACTIVE";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) /* Recovery Pid: xxxx Master: xxx State: xxxx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) out += scnprintf(buf + out, len - out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) "Recovery Pid: %d Master: %d State: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) task_pid_nr(dlm->dlm_reco_thread_task),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) dlm->reco.new_master, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) /* Recovery Map: xx xx */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) out += scnprintf(buf + out, len - out, "Recovery Map: ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) out += stringify_nodemap(dlm->recovery_map, O2NM_MAX_NODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) buf + out, len - out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) out += scnprintf(buf + out, len - out, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) /* Recovery Node State: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) out += scnprintf(buf + out, len - out, "Recovery Node State:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) list_for_each_entry(node, &dlm->reco.node_data, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) switch (node->state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) case DLM_RECO_NODE_DATA_INIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) state = "INIT";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) case DLM_RECO_NODE_DATA_REQUESTING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) state = "REQUESTING";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) case DLM_RECO_NODE_DATA_DEAD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) state = "DEAD";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) case DLM_RECO_NODE_DATA_RECEIVING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) state = "RECEIVING";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) case DLM_RECO_NODE_DATA_REQUESTED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) state = "REQUESTED";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) case DLM_RECO_NODE_DATA_DONE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) state = "DONE";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) case DLM_RECO_NODE_DATA_FINALIZE_SENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) state = "FINALIZE-SENT";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) state = "BAD";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) out += scnprintf(buf + out, len - out, "\t%u - %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) node->node_num, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) spin_unlock(&dlm->spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) return out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) static int debug_state_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) struct dlm_ctxt *dlm = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) char *buf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) buf = (char *) get_zeroed_page(GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) i_size_write(inode, debug_state_print(dlm, buf, PAGE_SIZE - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) file->private_data = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) bail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) static const struct file_operations debug_state_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) .open = debug_state_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) .release = debug_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) .read = debug_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) .llseek = generic_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) /* end - debug state funcs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) /* files in subroot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) void dlm_debug_init(struct dlm_ctxt *dlm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) /* for dumping dlm_ctxt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) debugfs_create_file(DLM_DEBUGFS_DLM_STATE, S_IFREG|S_IRUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) dlm->dlm_debugfs_subroot, dlm, &debug_state_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) /* for dumping lockres */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) debugfs_create_file(DLM_DEBUGFS_LOCKING_STATE, S_IFREG|S_IRUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) dlm->dlm_debugfs_subroot, dlm, &debug_lockres_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) /* for dumping mles */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) debugfs_create_file(DLM_DEBUGFS_MLE_STATE, S_IFREG|S_IRUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) dlm->dlm_debugfs_subroot, dlm, &debug_mle_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) /* for dumping lockres on the purge list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) debugfs_create_file(DLM_DEBUGFS_PURGE_LIST, S_IFREG|S_IRUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) dlm->dlm_debugfs_subroot, dlm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) &debug_purgelist_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) /* subroot - domain dir */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) void dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) dlm->dlm_debugfs_subroot = debugfs_create_dir(dlm->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) dlm_debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) debugfs_remove_recursive(dlm->dlm_debugfs_subroot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) /* debugfs root */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) void dlm_create_debugfs_root(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) dlm_debugfs_root = debugfs_create_dir(DLM_DEBUGFS_DIR, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) void dlm_destroy_debugfs_root(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) debugfs_remove(dlm_debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) #endif /* CONFIG_DEBUG_FS */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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