1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
5 * Author: Phil Schwan <phil@clusterfs.com>
6 * Author: Peter Braam <braam@clusterfs.com>
8 * This file is part of Lustre, http://www.lustre.org.
10 * Lustre is free software; you can redistribute it and/or
11 * modify it under the terms of version 2 of the GNU General Public
12 * License as published by the Free Software Foundation.
14 * Lustre is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with Lustre; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #define DEBUG_SUBSYSTEM S_LDLM
26 # include <linux/lustre_dlm.h>
28 # include <liblustre.h>
31 #include <linux/obd_class.h>
32 #include "ldlm_internal.h"
34 kmem_cache_t *ldlm_resource_slab, *ldlm_lock_slab;
36 DECLARE_MUTEX(ldlm_namespace_lock);
37 struct list_head ldlm_namespace_list = LIST_HEAD_INIT(ldlm_namespace_list);
38 struct proc_dir_entry *ldlm_type_proc_dir = NULL;
39 struct proc_dir_entry *ldlm_ns_proc_dir = NULL;
40 struct proc_dir_entry *ldlm_svc_proc_dir = NULL;
43 static int ldlm_proc_dump_ns(struct file *file, const char *buffer,
44 unsigned long count, void *data)
46 ldlm_dump_all_namespaces(D_DLMTRACE);
50 int ldlm_proc_setup(void)
53 struct lprocfs_vars list[] = {
54 { "dump_namespaces", NULL, ldlm_proc_dump_ns, NULL },
57 LASSERT(ldlm_ns_proc_dir == NULL);
59 ldlm_type_proc_dir = lprocfs_register(OBD_LDLM_DEVICENAME,
62 if (IS_ERR(ldlm_type_proc_dir)) {
63 CERROR("LProcFS failed in ldlm-init\n");
64 rc = PTR_ERR(ldlm_type_proc_dir);
68 ldlm_ns_proc_dir = lprocfs_register("namespaces",
71 if (IS_ERR(ldlm_ns_proc_dir)) {
72 CERROR("LProcFS failed in ldlm-init\n");
73 rc = PTR_ERR(ldlm_ns_proc_dir);
77 ldlm_svc_proc_dir = lprocfs_register("services",
80 if (IS_ERR(ldlm_svc_proc_dir)) {
81 CERROR("LProcFS failed in ldlm-init\n");
82 rc = PTR_ERR(ldlm_svc_proc_dir);
86 rc = lprocfs_add_vars(ldlm_type_proc_dir, list, NULL);
91 lprocfs_remove(ldlm_ns_proc_dir);
93 lprocfs_remove(ldlm_type_proc_dir);
95 ldlm_type_proc_dir = NULL;
96 ldlm_ns_proc_dir = NULL;
97 ldlm_svc_proc_dir = NULL;
101 void ldlm_proc_cleanup(void)
103 if (ldlm_svc_proc_dir) {
104 lprocfs_remove(ldlm_svc_proc_dir);
105 ldlm_svc_proc_dir = NULL;
108 if (ldlm_ns_proc_dir) {
109 lprocfs_remove(ldlm_ns_proc_dir);
110 ldlm_ns_proc_dir = NULL;
113 if (ldlm_type_proc_dir) {
114 lprocfs_remove(ldlm_type_proc_dir);
115 ldlm_type_proc_dir = NULL;
119 static int lprocfs_uint_rd(char *page, char **start, off_t off,
120 int count, int *eof, void *data)
122 unsigned int *temp = (unsigned int *)data;
123 return snprintf(page, count, "%u\n", *temp);
126 static int lprocfs_read_lru_size(char *page, char **start, off_t off,
127 int count, int *eof, void *data)
129 struct ldlm_namespace *ns = data;
130 return lprocfs_uint_rd(page, start, off, count, eof,
134 #define MAX_STRING_SIZE 128
135 static int lprocfs_write_lru_size(struct file *file, const char *buffer,
136 unsigned long count, void *data)
138 struct ldlm_namespace *ns = data;
139 char dummy[MAX_STRING_SIZE + 1], *end;
142 dummy[MAX_STRING_SIZE] = '\0';
143 if (copy_from_user(dummy, buffer, MAX_STRING_SIZE))
146 if (count == 6 && memcmp(dummy, "clear", 5) == 0) {
148 "dropping all unused locks from namespace %s\n",
150 tmp = ns->ns_max_unused;
151 ns->ns_max_unused = 0;
152 ldlm_cancel_lru(ns, LDLM_SYNC);
153 ns->ns_max_unused = tmp;
157 tmp = simple_strtoul(dummy, &end, 0);
158 if (tmp == 0 && *end) {
159 CERROR("invalid value written\n");
163 CDEBUG(D_DLMTRACE, "changing namespace %s max_unused from %u to %u\n",
164 ns->ns_name, ns->ns_max_unused, (unsigned int)tmp);
166 ns->ns_max_unused = (unsigned int)tmp;
167 ldlm_cancel_lru(ns, LDLM_ASYNC);
171 void ldlm_proc_namespace(struct ldlm_namespace *ns)
173 struct lprocfs_vars lock_vars[2];
174 char lock_name[MAX_STRING_SIZE + 1];
177 LASSERT(ns->ns_name != NULL);
179 lock_name[MAX_STRING_SIZE] = '\0';
181 memset(lock_vars, 0, sizeof(lock_vars));
182 lock_vars[0].read_fptr = lprocfs_rd_u64;
183 lock_vars[0].name = lock_name;
185 snprintf(lock_name, MAX_STRING_SIZE, "%s/resource_count", ns->ns_name);
186 lock_vars[0].data = &ns->ns_resources;
187 lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
189 snprintf(lock_name, MAX_STRING_SIZE, "%s/lock_count", ns->ns_name);
190 lock_vars[0].data = &ns->ns_locks;
191 lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
194 snprintf(lock_name, MAX_STRING_SIZE, "%s/lock_unused_count",
196 lock_vars[0].data = &ns->ns_nr_unused;
197 lock_vars[0].read_fptr = lprocfs_uint_rd;
198 lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
200 snprintf(lock_name, MAX_STRING_SIZE, "%s/lru_size",
202 lock_vars[0].data = ns;
203 lock_vars[0].read_fptr = lprocfs_read_lru_size;
204 lock_vars[0].write_fptr = lprocfs_write_lru_size;
205 lprocfs_add_vars(ldlm_ns_proc_dir, lock_vars, 0);
209 #undef MAX_STRING_SIZE
211 struct ldlm_namespace *ldlm_namespace_new(char *name, __u32 client)
213 struct ldlm_namespace *ns = NULL;
214 struct list_head *bucket;
220 CERROR("ldlm_get_ref failed: %d\n", rc);
224 OBD_ALLOC(ns, sizeof(*ns));
228 OBD_VMALLOC(ns->ns_hash, sizeof(*ns->ns_hash) * RES_HASH_SIZE);
232 OBD_ALLOC(ns->ns_name, strlen(name) + 1);
234 GOTO(out_hash, NULL);
236 strcpy(ns->ns_name, name);
238 INIT_LIST_HEAD(&ns->ns_root_list);
240 ns->ns_client = client;
241 spin_lock_init(&ns->ns_hash_lock);
242 atomic_set(&ns->ns_locks, 0);
243 ns->ns_resources = 0;
244 init_waitqueue_head(&ns->ns_waitq);
246 for (bucket = ns->ns_hash + RES_HASH_SIZE - 1; bucket >= ns->ns_hash;
248 INIT_LIST_HEAD(bucket);
250 INIT_LIST_HEAD(&ns->ns_unused_list);
251 ns->ns_nr_unused = 0;
252 ns->ns_max_unused = LDLM_DEFAULT_LRU_SIZE;
253 spin_lock_init(&ns->ns_unused_lock);
255 down(&ldlm_namespace_lock);
256 list_add(&ns->ns_list_chain, &ldlm_namespace_list);
257 up(&ldlm_namespace_lock);
259 ldlm_proc_namespace(ns);
264 POISON(ns->ns_hash, 0x5a, sizeof(*ns->ns_hash) * RES_HASH_SIZE);
265 OBD_VFREE(ns->ns_hash, sizeof(*ns->ns_hash) * RES_HASH_SIZE);
267 OBD_FREE(ns, sizeof(*ns));
273 extern struct ldlm_lock *ldlm_lock_get(struct ldlm_lock *lock);
275 /* If flags contains FL_LOCAL_ONLY, don't try to tell the server, just cleanup.
276 * This is currently only used for recovery, and we make certain assumptions
277 * as a result--notably, that we shouldn't cancel locks with refs. -phil
279 * Called with the ns_lock held. */
280 static void cleanup_resource(struct ldlm_resource *res, struct list_head *q,
283 struct list_head *tmp;
284 int rc = 0, client = res->lr_namespace->ns_client;
285 int local_only = (flags & LDLM_FL_LOCAL_ONLY);
290 struct ldlm_lock *lock = NULL;
292 /* first, we look for non-cleaned-yet lock
293 * all cleaned locks are marked by CLEANED flag */
295 list_for_each(tmp, q) {
296 lock = list_entry(tmp, struct ldlm_lock, l_res_link);
297 if (lock->l_flags & LDLM_FL_CLEANED) {
302 lock->l_flags |= LDLM_FL_CLEANED;
311 /* Set CBPENDING so nothing in the cancellation path
312 * can match this lock */
313 lock->l_flags |= LDLM_FL_CBPENDING;
314 lock->l_flags |= LDLM_FL_FAILED;
315 lock->l_flags |= flags;
317 if (local_only && (lock->l_readers || lock->l_writers)) {
318 /* This is a little bit gross, but much better than the
319 * alternative: pretend that we got a blocking AST from
320 * the server, so that when the lock is decref'd, it
321 * will go away ... */
322 /* ... without sending a CANCEL message. */
323 lock->l_flags |= LDLM_FL_LOCAL_ONLY;
325 LDLM_DEBUG(lock, "setting FL_LOCAL_ONLY");
326 if (lock->l_completion_ast)
327 lock->l_completion_ast(lock, 0, NULL);
333 struct lustre_handle lockh;
336 ldlm_lock2handle(lock, &lockh);
338 rc = ldlm_cli_cancel(&lockh);
340 CERROR("ldlm_cli_cancel: %d\n", rc);
342 /* Force local cleanup on errors, too. */
343 if (local_only || rc != ELDLM_OK)
344 ldlm_lock_cancel(lock);
346 ldlm_resource_unlink_lock(lock);
348 LDLM_DEBUG(lock, "Freeing a lock still held by a "
350 ldlm_lock_destroy(lock);
358 int ldlm_namespace_cleanup(struct ldlm_namespace *ns, int flags)
360 struct list_head *tmp;
364 CDEBUG(D_INFO, "NULL ns, skipping cleanup\n");
368 for (i = 0; i < RES_HASH_SIZE; i++) {
369 spin_lock(&ns->ns_hash_lock);
370 tmp = ns->ns_hash[i].next;
371 while (tmp != &(ns->ns_hash[i])) {
372 struct ldlm_resource *res;
373 res = list_entry(tmp, struct ldlm_resource, lr_hash);
374 ldlm_resource_getref(res);
375 spin_unlock(&ns->ns_hash_lock);
377 cleanup_resource(res, &res->lr_granted, flags);
378 cleanup_resource(res, &res->lr_converting, flags);
379 cleanup_resource(res, &res->lr_waiting, flags);
381 spin_lock(&ns->ns_hash_lock);
384 /* XXX: former stuff caused issues in case of race
385 * between ldlm_namespace_cleanup() and lockd() when
386 * client gets blocking ast when lock gets distracted by
387 * server. This is 1_4 branch solution, let's see how
389 if (!ldlm_resource_putref_locked(res))
391 "Namespace %s resource refcount nonzero "
392 "(%d) after lock cleanup; forcing cleanup.\n",
393 ns->ns_name, atomic_read(&res->lr_refcount));
395 spin_unlock(&ns->ns_hash_lock);
401 static inline int ldlm_ns_refcount_atomic(struct ldlm_namespace *ns)
404 spin_lock(&ns->ns_hash_lock);
405 refcount = ns->ns_refcount;
406 spin_unlock(&ns->ns_hash_lock);
410 /* Cleanup, but also free, the namespace */
411 int ldlm_namespace_free(struct ldlm_namespace *ns, int force)
416 down(&ldlm_namespace_lock);
417 list_del(&ns->ns_list_chain);
418 up(&ldlm_namespace_lock);
420 /* At shutdown time, don't call the cancellation callback */
421 ldlm_namespace_cleanup(ns, 0);
425 struct proc_dir_entry *dir;
426 dir = lprocfs_srch(ldlm_ns_proc_dir, ns->ns_name);
428 CERROR("dlm namespace %s has no procfs dir?\n",
436 if (ldlm_ns_refcount_atomic(ns) > 0) {
437 struct l_wait_info lwi = LWI_INTR(NULL, NULL);
440 "dlm namespace %s free waiting on refcount %d\n",
441 ns->ns_name, ns->ns_refcount);
442 rc = l_wait_event(ns->ns_waitq,
443 ldlm_ns_refcount_atomic(ns) == 0, &lwi);
444 if (ldlm_ns_refcount_atomic(ns)) {
445 CDEBUG(D_ERROR, "Lock manager: wait for %s namespace "
446 "cleanup aborted with %d resources in "
447 "use. (%d)\nI'm going to try to clean "
448 "up anyway, but I might need a reboot "
449 "of this node.\n", ns->ns_name,
450 ldlm_ns_refcount_atomic(ns), rc);
453 "dlm namespace %s free done waiting\n", ns->ns_name);
456 POISON(ns->ns_hash, 0x5a, sizeof(*ns->ns_hash) * RES_HASH_SIZE);
457 OBD_VFREE(ns->ns_hash, sizeof(*ns->ns_hash) * RES_HASH_SIZE);
458 OBD_FREE(ns->ns_name, strlen(ns->ns_name) + 1);
459 OBD_FREE(ns, sizeof(*ns));
466 static __u32 ldlm_hash_fn(struct ldlm_resource *parent, struct ldlm_res_id name)
471 for (i = 0; i < RES_NAME_SIZE; i++)
472 hash += name.name[i];
474 hash += (__u32)((unsigned long)parent >> 4);
476 return (hash & RES_HASH_MASK);
479 static struct ldlm_resource *ldlm_resource_new(void)
481 struct ldlm_resource *res;
483 OBD_SLAB_ALLOC(res, ldlm_resource_slab, SLAB_NOFS, sizeof *res);
487 memset(res, 0, sizeof(*res));
489 INIT_LIST_HEAD(&res->lr_children);
490 INIT_LIST_HEAD(&res->lr_childof);
491 INIT_LIST_HEAD(&res->lr_granted);
492 INIT_LIST_HEAD(&res->lr_converting);
493 INIT_LIST_HEAD(&res->lr_waiting);
494 atomic_set(&res->lr_refcount, 1);
495 spin_lock_init(&res->lr_lock);
497 /* one who creates the resource must unlock
498 * the semaphore after lvb initialization */
499 init_MUTEX_LOCKED(&res->lr_lvb_sem);
504 /* must be called with hash lock held */
505 static struct ldlm_resource *
506 ldlm_resource_find(struct ldlm_namespace *ns, struct ldlm_res_id name, __u32 hash)
508 struct list_head *bucket, *tmp;
509 struct ldlm_resource *res;
511 LASSERT_SPIN_LOCKED(&ns->ns_hash_lock);
512 bucket = ns->ns_hash + hash;
514 list_for_each(tmp, bucket) {
515 res = list_entry(tmp, struct ldlm_resource, lr_hash);
516 if (memcmp(&res->lr_name, &name, sizeof(res->lr_name)) == 0)
523 /* Args: locked namespace
524 * Returns: newly-allocated, referenced, unlocked resource */
525 static struct ldlm_resource *
526 ldlm_resource_add(struct ldlm_namespace *ns, struct ldlm_resource *parent,
527 struct ldlm_res_id name, __u32 hash, __u32 type)
529 struct list_head *bucket;
530 struct ldlm_resource *res, *old_res;
533 LASSERTF(type >= LDLM_MIN_TYPE && type <= LDLM_MAX_TYPE,
536 res = ldlm_resource_new();
540 memcpy(&res->lr_name, &name, sizeof(res->lr_name));
541 res->lr_namespace = ns;
543 res->lr_most_restr = LCK_NL;
545 spin_lock(&ns->ns_hash_lock);
546 old_res = ldlm_resource_find(ns, name, hash);
548 /* someone won the race and added the resource before */
549 ldlm_resource_getref(old_res);
550 spin_unlock(&ns->ns_hash_lock);
551 OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof *res);
552 /* synchronize WRT resource creation */
553 if (ns->ns_lvbo && ns->ns_lvbo->lvbo_init) {
554 down(&old_res->lr_lvb_sem);
555 up(&old_res->lr_lvb_sem);
560 /* we won! let's add the resource */
561 bucket = ns->ns_hash + hash;
562 list_add(&res->lr_hash, bucket);
566 if (parent == NULL) {
567 list_add(&res->lr_childof, &ns->ns_root_list);
569 res->lr_parent = parent;
570 list_add(&res->lr_childof, &parent->lr_children);
572 spin_unlock(&ns->ns_hash_lock);
574 if (ns->ns_lvbo && ns->ns_lvbo->lvbo_init) {
577 OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_CREATE_RESOURCE, 2);
578 rc = ns->ns_lvbo->lvbo_init(res);
580 CERROR("lvbo_init failed for resource "
581 LPU64": rc %d\n", name.name[0], rc);
582 /* we create resource with locked lr_lvb_sem */
583 up(&res->lr_lvb_sem);
589 /* Args: unlocked namespace
590 * Locks: takes and releases ns->ns_lock and res->lr_lock
591 * Returns: referenced, unlocked ldlm_resource or NULL */
592 struct ldlm_resource *
593 ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
594 struct ldlm_res_id name, __u32 type, int create)
596 __u32 hash = ldlm_hash_fn(parent, name);
597 struct ldlm_resource *res = NULL;
601 LASSERT(ns->ns_hash != NULL);
602 LASSERT(name.name[0] != 0);
604 spin_lock(&ns->ns_hash_lock);
605 res = ldlm_resource_find(ns, name, hash);
607 ldlm_resource_getref(res);
608 spin_unlock(&ns->ns_hash_lock);
609 /* synchronize WRT resource creation */
610 if (ns->ns_lvbo && ns->ns_lvbo->lvbo_init) {
611 down(&res->lr_lvb_sem);
612 up(&res->lr_lvb_sem);
616 spin_unlock(&ns->ns_hash_lock);
621 res = ldlm_resource_add(ns, parent, name, hash, type);
625 struct ldlm_resource *ldlm_resource_getref(struct ldlm_resource *res)
627 LASSERT(res != NULL);
628 LASSERT(res != LP_POISON);
629 atomic_inc(&res->lr_refcount);
630 CDEBUG(D_INFO, "getref res: %p count: %d\n", res,
631 atomic_read(&res->lr_refcount));
635 void __ldlm_resource_putref_final(struct ldlm_resource *res)
637 struct ldlm_namespace *ns = res->lr_namespace;
639 LASSERT_SPIN_LOCKED(&ns->ns_hash_lock);
641 if (!list_empty(&res->lr_granted)) {
642 ldlm_resource_dump(D_ERROR, res);
646 if (!list_empty(&res->lr_converting)) {
647 ldlm_resource_dump(D_ERROR, res);
651 if (!list_empty(&res->lr_waiting)) {
652 ldlm_resource_dump(D_ERROR, res);
656 if (!list_empty(&res->lr_children)) {
657 ldlm_resource_dump(D_ERROR, res);
662 list_del_init(&res->lr_hash);
663 list_del_init(&res->lr_childof);
666 if (ns->ns_resources == 0)
667 wake_up(&ns->ns_waitq);
670 /* Returns 1 if the resource was freed, 0 if it remains. */
671 int ldlm_resource_putref(struct ldlm_resource *res)
673 struct ldlm_namespace *ns = res->lr_namespace;
677 CDEBUG(D_INFO, "putref res: %p count: %d\n", res,
678 atomic_read(&res->lr_refcount) - 1);
679 LASSERT(atomic_read(&res->lr_refcount) > 0);
680 LASSERT(atomic_read(&res->lr_refcount) < LI_POISON);
682 LASSERT(atomic_read(&res->lr_refcount) >= 0);
683 if (atomic_dec_and_lock(&res->lr_refcount, &ns->ns_hash_lock)) {
684 __ldlm_resource_putref_final(res);
685 spin_unlock(&ns->ns_hash_lock);
686 if (res->lr_lvb_data)
687 OBD_FREE(res->lr_lvb_data, res->lr_lvb_len);
688 OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof *res);
695 /* Returns 1 if the resource was freed, 0 if it remains. */
696 int ldlm_resource_putref_locked(struct ldlm_resource *res)
701 CDEBUG(D_INFO, "putref res: %p count: %d\n", res,
702 atomic_read(&res->lr_refcount) - 1);
703 LASSERT(atomic_read(&res->lr_refcount) > 0);
704 LASSERT(atomic_read(&res->lr_refcount) < LI_POISON);
706 LASSERT(atomic_read(&res->lr_refcount) >= 0);
707 if (atomic_dec_and_test(&res->lr_refcount)) {
708 __ldlm_resource_putref_final(res);
709 if (res->lr_lvb_data)
710 OBD_FREE(res->lr_lvb_data, res->lr_lvb_len);
711 OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof *res);
718 void ldlm_resource_add_lock(struct ldlm_resource *res, struct list_head *head,
719 struct ldlm_lock *lock)
721 check_res_locked(res);
723 ldlm_resource_dump(D_OTHER, res);
724 CDEBUG(D_OTHER, "About to add this lock:\n");
725 ldlm_lock_dump(D_OTHER, lock, 0);
727 if (lock->l_destroyed) {
728 CDEBUG(D_OTHER, "Lock destroyed, not adding to resource\n");
732 LASSERT(list_empty(&lock->l_res_link));
734 list_add_tail(&lock->l_res_link, head);
737 void ldlm_resource_unlink_lock(struct ldlm_lock *lock)
739 check_res_locked(lock->l_resource);
740 list_del_init(&lock->l_res_link);
743 void ldlm_res2desc(struct ldlm_resource *res, struct ldlm_resource_desc *desc)
745 desc->lr_type = res->lr_type;
746 memcpy(&desc->lr_name, &res->lr_name, sizeof(desc->lr_name));
749 void ldlm_dump_all_namespaces(int level)
751 struct list_head *tmp;
753 down(&ldlm_namespace_lock);
755 list_for_each(tmp, &ldlm_namespace_list) {
756 struct ldlm_namespace *ns;
757 ns = list_entry(tmp, struct ldlm_namespace, ns_list_chain);
758 ldlm_namespace_dump(level, ns);
761 up(&ldlm_namespace_lock);
764 void ldlm_namespace_dump(int level, struct ldlm_namespace *ns)
766 struct list_head *tmp;
768 CDEBUG(level, "--- Namespace: %s (rc: %d, client: %d)\n",
769 ns->ns_name, ns->ns_refcount, ns->ns_client);
771 if (time_before(jiffies, ns->ns_next_dump))
774 spin_lock(&ns->ns_hash_lock);
775 tmp = ns->ns_root_list.next;
776 while (tmp != &ns->ns_root_list) {
777 struct ldlm_resource *res;
778 res = list_entry(tmp, struct ldlm_resource, lr_childof);
780 ldlm_resource_getref(res);
781 spin_unlock(&ns->ns_hash_lock);
784 ldlm_resource_dump(level, res);
787 spin_lock(&ns->ns_hash_lock);
789 ldlm_resource_putref_locked(res);
791 ns->ns_next_dump = jiffies + 10 * HZ;
792 spin_unlock(&ns->ns_hash_lock);
795 void ldlm_resource_dump(int level, struct ldlm_resource *res)
797 struct list_head *tmp;
800 if (RES_NAME_SIZE != 4)
803 CDEBUG(level, "--- Resource: %p ("LPU64"/"LPU64"/"LPU64"/"LPU64
804 ") (rc: %d)\n", res, res->lr_name.name[0], res->lr_name.name[1],
805 res->lr_name.name[2], res->lr_name.name[3],
806 atomic_read(&res->lr_refcount));
808 if (!list_empty(&res->lr_granted)) {
810 CDEBUG(level, "Granted locks:\n");
811 list_for_each(tmp, &res->lr_granted) {
812 struct ldlm_lock *lock;
813 lock = list_entry(tmp, struct ldlm_lock, l_res_link);
814 ldlm_lock_dump(level, lock, ++pos);
817 if (!list_empty(&res->lr_converting)) {
819 CDEBUG(level, "Converting locks:\n");
820 list_for_each(tmp, &res->lr_converting) {
821 struct ldlm_lock *lock;
822 lock = list_entry(tmp, struct ldlm_lock, l_res_link);
823 ldlm_lock_dump(level, lock, ++pos);
826 if (!list_empty(&res->lr_waiting)) {
828 CDEBUG(level, "Waiting locks:\n");
829 list_for_each(tmp, &res->lr_waiting) {
830 struct ldlm_lock *lock;
831 lock = list_entry(tmp, struct ldlm_lock, l_res_link);
832 ldlm_lock_dump(level, lock, ++pos);