* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
extern cfs_mem_cache_t *ldlm_resource_slab;
extern cfs_mem_cache_t *ldlm_lock_slab;
-static struct semaphore ldlm_ref_sem;
+static cfs_semaphore_t ldlm_ref_sem;
static int ldlm_refcount;
/* LDLM state */
#ifdef __KERNEL__
/* w_l_spinlock protects both waiting_locks_list and expired_lock_thread */
-static spinlock_t waiting_locks_spinlock; /* BH lock (timer) */
-static struct list_head waiting_locks_list;
+static cfs_spinlock_t waiting_locks_spinlock; /* BH lock (timer) */
+static cfs_list_t waiting_locks_list;
static cfs_timer_t waiting_locks_timer;
static struct expired_lock_thread {
cfs_waitq_t elt_waitq;
int elt_state;
int elt_dump;
- struct list_head elt_expired_locks;
+ cfs_list_t elt_expired_locks;
} expired_lock_thread;
#endif
#define ELT_TERMINATE 2
struct ldlm_bl_pool {
- spinlock_t blp_lock;
+ cfs_spinlock_t blp_lock;
/*
* blp_prio_list is used for callbacks that should be handled
* as a priority. It is used for LDLM_FL_DISCARD_DATA requests.
* see bug 13843
*/
- struct list_head blp_prio_list;
+ cfs_list_t blp_prio_list;
/*
* blp_list is used for all other callbacks which are likely
* to take longer to process.
*/
- struct list_head blp_list;
+ cfs_list_t blp_list;
cfs_waitq_t blp_waitq;
- struct completion blp_comp;
- atomic_t blp_num_threads;
- atomic_t blp_busy_threads;
+ cfs_completion_t blp_comp;
+ cfs_atomic_t blp_num_threads;
+ cfs_atomic_t blp_busy_threads;
int blp_min_threads;
int blp_max_threads;
};
struct ldlm_bl_work_item {
- struct list_head blwi_entry;
- struct ldlm_namespace *blwi_ns;
+ cfs_list_t blwi_entry;
+ struct ldlm_namespace *blwi_ns;
struct ldlm_lock_desc blwi_ld;
- struct ldlm_lock *blwi_lock;
- struct list_head blwi_head;
+ struct ldlm_lock *blwi_lock;
+ cfs_list_t blwi_head;
int blwi_count;
+ cfs_completion_t blwi_comp;
+ int blwi_mode;
+ int blwi_mem_pressure;
};
#ifdef __KERNEL__
int need_to_run;
ENTRY;
- spin_lock_bh(&waiting_locks_spinlock);
- need_to_run = !list_empty(&expired_lock_thread.elt_expired_locks);
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
+ need_to_run = !cfs_list_empty(&expired_lock_thread.elt_expired_locks);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
RETURN(need_to_run);
}
static int expired_lock_main(void *arg)
{
- struct list_head *expired = &expired_lock_thread.elt_expired_locks;
+ cfs_list_t *expired = &expired_lock_thread.elt_expired_locks;
struct l_wait_info lwi = { 0 };
int do_dump;
expired_lock_thread.elt_state == ELT_TERMINATE,
&lwi);
- spin_lock_bh(&waiting_locks_spinlock);
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
if (expired_lock_thread.elt_dump) {
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
/* from waiting_locks_callback, but not in timer */
libcfs_debug_dumplog();
"waiting_locks_callback",
expired_lock_thread.elt_dump);
- spin_lock_bh(&waiting_locks_spinlock);
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
expired_lock_thread.elt_dump = 0;
}
do_dump = 0;
- while (!list_empty(expired)) {
+ while (!cfs_list_empty(expired)) {
struct obd_export *export;
struct ldlm_lock *lock;
- lock = list_entry(expired->next, struct ldlm_lock,
+ lock = cfs_list_entry(expired->next, struct ldlm_lock,
l_pending_chain);
if ((void *)lock < LP_POISON + CFS_PAGE_SIZE &&
(void *)lock >= LP_POISON) {
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
CERROR("free lock on elt list %p\n", lock);
LBUG();
}
- list_del_init(&lock->l_pending_chain);
+ cfs_list_del_init(&lock->l_pending_chain);
if ((void *)lock->l_export < LP_POISON + CFS_PAGE_SIZE &&
(void *)lock->l_export >= LP_POISON) {
CERROR("lock with free export on elt list %p\n",
lock->l_export);
lock->l_export = NULL;
LDLM_ERROR(lock, "free export");
+ /* release extra ref grabbed by
+ * ldlm_add_waiting_lock() or
+ * ldlm_failed_ast() */
+ LDLM_LOCK_RELEASE(lock);
continue;
}
- export = class_export_get(lock->l_export);
- spin_unlock_bh(&waiting_locks_spinlock);
+ export = class_export_lock_get(lock->l_export, lock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
do_dump++;
class_fail_export(export);
- class_export_put(export);
- spin_lock_bh(&waiting_locks_spinlock);
+ class_export_lock_put(export, lock);
+
+ /* release extra ref grabbed by ldlm_add_waiting_lock()
+ * or ldlm_failed_ast() */
+ LDLM_LOCK_RELEASE(lock);
+
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
}
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
if (do_dump && obd_dump_on_eviction) {
CERROR("dump the log upon eviction\n");
static int ldlm_add_waiting_lock(struct ldlm_lock *lock);
+/**
+ * Check if there is a request in the export request list
+ * which prevents the lock canceling.
+ */
+static int ldlm_lock_busy(struct ldlm_lock *lock)
+{
+ struct ptlrpc_request *req;
+ int match = 0;
+ ENTRY;
+
+ if (lock->l_export == NULL)
+ return 0;
+
+ cfs_spin_lock_bh(&lock->l_export->exp_rpc_lock);
+ cfs_list_for_each_entry(req, &lock->l_export->exp_queued_rpc,
+ rq_exp_list) {
+ if (req->rq_ops->hpreq_lock_match) {
+ match = req->rq_ops->hpreq_lock_match(req, lock);
+ if (match)
+ break;
+ }
+ }
+ cfs_spin_unlock_bh(&lock->l_export->exp_rpc_lock);
+ RETURN(match);
+}
+
/* This is called from within a timer interrupt and cannot schedule */
static void waiting_locks_callback(unsigned long unused)
{
struct ldlm_lock *lock, *last = NULL;
repeat:
- spin_lock_bh(&waiting_locks_spinlock);
- while (!list_empty(&waiting_locks_list)) {
- lock = list_entry(waiting_locks_list.next, struct ldlm_lock,
- l_pending_chain);
-
- if (cfs_time_after(lock->l_callback_timeout, cfs_time_current()) ||
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
+ while (!cfs_list_empty(&waiting_locks_list)) {
+ lock = cfs_list_entry(waiting_locks_list.next, struct ldlm_lock,
+ l_pending_chain);
+ if (cfs_time_after(lock->l_callback_timeout,
+ cfs_time_current()) ||
(lock->l_req_mode == LCK_GROUP))
break;
lock->l_export->exp_connection->c_remote_uuid.uuid,
libcfs_nid2str(lock->l_export->exp_connection->c_peer.nid));
- list_del_init(&lock->l_pending_chain);
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_list_del_init(&lock->l_pending_chain);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
ldlm_add_waiting_lock(lock);
goto repeat;
}
lock->l_export->exp_connection->c_remote_uuid.uuid,
libcfs_nid2str(lock->l_export->exp_connection->c_peer.nid));
- list_del_init(&lock->l_pending_chain);
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_list_del_init(&lock->l_pending_chain);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
ldlm_add_waiting_lock(lock);
goto repeat;
}
+ /* Check if we need to prolong timeout */
+ if (!OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_HPREQ_TIMEOUT) &&
+ ldlm_lock_busy(lock)) {
+ int cont = 1;
+
+ if (lock->l_pending_chain.next == &waiting_locks_list)
+ cont = 0;
+
+ LDLM_LOCK_GET(lock);
+
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
+ LDLM_DEBUG(lock, "prolong the busy lock");
+ ldlm_refresh_waiting_lock(lock,
+ ldlm_get_enq_timeout(lock));
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
+
+ if (!cont) {
+ LDLM_LOCK_RELEASE(lock);
+ break;
+ }
+
+ LDLM_LOCK_RELEASE(lock);
+ continue;
+ }
+ ldlm_lock_to_ns(lock)->ns_timeouts++;
LDLM_ERROR(lock, "lock callback timer expired after %lds: "
"evicting client at %s ",
- cfs_time_current_sec()- lock->l_enqueued_time.tv_sec,
+ cfs_time_current_sec()- lock->l_last_activity,
libcfs_nid2str(
lock->l_export->exp_connection->c_peer.nid));
last = lock;
- list_del(&lock->l_pending_chain);
- list_add(&lock->l_pending_chain,
- &expired_lock_thread.elt_expired_locks);
+ /* no needs to take an extra ref on the lock since it was in
+ * the waiting_locks_list and ldlm_add_waiting_lock()
+ * already grabbed a ref */
+ cfs_list_del(&lock->l_pending_chain);
+ cfs_list_add(&lock->l_pending_chain,
+ &expired_lock_thread.elt_expired_locks);
}
- if (!list_empty(&expired_lock_thread.elt_expired_locks)) {
+ if (!cfs_list_empty(&expired_lock_thread.elt_expired_locks)) {
if (obd_dump_on_timeout)
expired_lock_thread.elt_dump = __LINE__;
* Make sure the timer will fire again if we have any locks
* left.
*/
- if (!list_empty(&waiting_locks_list)) {
+ if (!cfs_list_empty(&waiting_locks_list)) {
cfs_time_t timeout_rounded;
- lock = list_entry(waiting_locks_list.next, struct ldlm_lock,
- l_pending_chain);
+ lock = cfs_list_entry(waiting_locks_list.next, struct ldlm_lock,
+ l_pending_chain);
timeout_rounded = (cfs_time_t)round_timeout(lock->l_callback_timeout);
cfs_timer_arm(&waiting_locks_timer, timeout_rounded);
}
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
}
/*
* lock. We add it to the pending-callback chain, and schedule the lock-timeout
* timer to fire appropriately. (We round up to the next second, to avoid
* floods of timer firings during periods of high lock contention and traffic).
+ * As done by ldlm_add_waiting_lock(), the caller must grab a lock reference
+ * if it has been added to the waiting list (1 is returned).
*
* Called with the namespace lock held.
*/
-static int __ldlm_add_waiting_lock(struct ldlm_lock *lock)
+static int __ldlm_add_waiting_lock(struct ldlm_lock *lock, int seconds)
{
- int timeout;
+ cfs_time_t timeout;
cfs_time_t timeout_rounded;
- if (!list_empty(&lock->l_pending_chain))
+ if (!cfs_list_empty(&lock->l_pending_chain))
return 0;
- timeout = ldlm_get_enq_timeout(lock);
+ if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT) ||
+ OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_HPREQ_TIMEOUT))
+ seconds = 1;
- lock->l_callback_timeout = cfs_time_shift(timeout);
+ timeout = cfs_time_shift(seconds);
+ if (likely(cfs_time_after(timeout, lock->l_callback_timeout)))
+ lock->l_callback_timeout = timeout;
timeout_rounded = round_timeout(lock->l_callback_timeout);
}
/* if the new lock has a shorter timeout than something earlier on
the list, we'll wait the longer amount of time; no big deal. */
- list_add_tail(&lock->l_pending_chain, &waiting_locks_list); /* FIFO */
+ /* FIFO */
+ cfs_list_add_tail(&lock->l_pending_chain, &waiting_locks_list);
return 1;
}
static int ldlm_add_waiting_lock(struct ldlm_lock *lock)
{
int ret;
+ int timeout = ldlm_get_enq_timeout(lock);
LASSERT(!(lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK));
- spin_lock_bh(&waiting_locks_spinlock);
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
if (lock->l_destroyed) {
static cfs_time_t next;
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
LDLM_ERROR(lock, "not waiting on destroyed lock (bug 5653)");
if (cfs_time_after(cfs_time_current(), next)) {
next = cfs_time_shift(14400);
return 0;
}
- ret = __ldlm_add_waiting_lock(lock);
- spin_unlock_bh(&waiting_locks_spinlock);
+ ret = __ldlm_add_waiting_lock(lock, timeout);
+ if (ret)
+ /* grab ref on the lock if it has been added to the
+ * waiting list */
+ LDLM_LOCK_GET(lock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
- LDLM_DEBUG(lock, "%sadding to wait list",
- ret == 0 ? "not re-" : "");
+ LDLM_DEBUG(lock, "%sadding to wait list(timeout: %d, AT: %s)",
+ ret == 0 ? "not re-" : "", timeout,
+ AT_OFF ? "off" : "on");
return ret;
}
* Remove a lock from the pending list, likely because it had its cancellation
* callback arrive without incident. This adjusts the lock-timeout timer if
* needed. Returns 0 if the lock wasn't pending after all, 1 if it was.
+ * As done by ldlm_del_waiting_lock(), the caller must release the lock
+ * reference when the lock is removed from any list (1 is returned).
*
* Called with namespace lock held.
*/
-int __ldlm_del_waiting_lock(struct ldlm_lock *lock)
+static int __ldlm_del_waiting_lock(struct ldlm_lock *lock)
{
- struct list_head *list_next;
+ cfs_list_t *list_next;
- if (list_empty(&lock->l_pending_chain))
+ if (cfs_list_empty(&lock->l_pending_chain))
return 0;
list_next = lock->l_pending_chain.next;
cfs_timer_disarm(&waiting_locks_timer);
} else {
struct ldlm_lock *next;
- next = list_entry(list_next, struct ldlm_lock,
- l_pending_chain);
+ next = cfs_list_entry(list_next, struct ldlm_lock,
+ l_pending_chain);
cfs_timer_arm(&waiting_locks_timer,
round_timeout(next->l_callback_timeout));
}
}
- list_del_init(&lock->l_pending_chain);
+ cfs_list_del_init(&lock->l_pending_chain);
return 1;
}
if (lock->l_export == NULL) {
/* We don't have a "waiting locks list" on clients. */
- LDLM_DEBUG(lock, "client lock: no-op");
+ CDEBUG(D_DLMTRACE, "Client lock %p : no-op\n", lock);
return 0;
}
- spin_lock_bh(&waiting_locks_spinlock);
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
ret = __ldlm_del_waiting_lock(lock);
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
+ if (ret)
+ /* release lock ref if it has indeed been removed
+ * from a list */
+ LDLM_LOCK_RELEASE(lock);
LDLM_DEBUG(lock, "%s", ret == 0 ? "wasn't waiting" : "removed");
return ret;
*
* Called with namespace lock held.
*/
-int ldlm_refresh_waiting_lock(struct ldlm_lock *lock)
+int ldlm_refresh_waiting_lock(struct ldlm_lock *lock, int timeout)
{
if (lock->l_export == NULL) {
/* We don't have a "waiting locks list" on clients. */
return 0;
}
- spin_lock_bh(&waiting_locks_spinlock);
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
- if (list_empty(&lock->l_pending_chain)) {
- spin_unlock_bh(&waiting_locks_spinlock);
+ if (cfs_list_empty(&lock->l_pending_chain)) {
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
LDLM_DEBUG(lock, "wasn't waiting");
return 0;
}
+ /* we remove/add the lock to the waiting list, so no needs to
+ * release/take a lock reference */
__ldlm_del_waiting_lock(lock);
- __ldlm_add_waiting_lock(lock);
- spin_unlock_bh(&waiting_locks_spinlock);
+ __ldlm_add_waiting_lock(lock, timeout);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
LDLM_DEBUG(lock, "refreshed");
return 1;
}
-
#else /* !__KERNEL__ */
static int ldlm_add_waiting_lock(struct ldlm_lock *lock)
RETURN(0);
}
-int ldlm_refresh_waiting_lock(struct ldlm_lock *lock)
+int ldlm_refresh_waiting_lock(struct ldlm_lock *lock, int timeout)
{
RETURN(0);
}
static void ldlm_failed_ast(struct ldlm_lock *lock, int rc,
const char *ast_type)
{
- struct ptlrpc_connection *conn = lock->l_export->exp_connection;
- char *str = libcfs_nid2str(conn->c_peer.nid);
-
- LCONSOLE_ERROR_MSG(0x138, "A client on nid %s was evicted from "
- "service %s.\n", str,
- lock->l_export->exp_obd->obd_name);
-
- LCONSOLE_ERROR_MSG(0x012, "Lock %s callback to %s timed out for "
- "resource %d\n", ast_type,
- obd_export_nid2str(lock->l_export), rc);
+ LCONSOLE_ERROR_MSG(0x138, "%s: A client on nid %s was evicted due "
+ "to a lock %s callback time out: rc %d\n",
+ lock->l_export->exp_obd->obd_name,
+ obd_export_nid2str(lock->l_export), ast_type, rc);
if (obd_dump_on_timeout)
libcfs_debug_dumplog();
#ifdef __KERNEL__
- spin_lock_bh(&waiting_locks_spinlock);
- list_add(&lock->l_pending_chain, &expired_lock_thread.elt_expired_locks);
+ cfs_spin_lock_bh(&waiting_locks_spinlock);
+ if (__ldlm_del_waiting_lock(lock) == 0)
+ /* the lock was not in any list, grab an extra ref before adding
+ * the lock to the expired list */
+ LDLM_LOCK_GET(lock);
+ cfs_list_add(&lock->l_pending_chain,
+ &expired_lock_thread.elt_expired_locks);
cfs_waitq_signal(&expired_lock_thread.elt_waitq);
- spin_unlock_bh(&waiting_locks_spinlock);
+ cfs_spin_unlock_bh(&waiting_locks_spinlock);
#else
class_fail_export(lock->l_export);
#endif
ldlm_failed_ast(lock, rc, ast_type);
}
} else if (rc) {
- if (rc == -EINVAL)
+ if (rc == -EINVAL) {
+ struct ldlm_resource *res = lock->l_resource;
LDLM_DEBUG(lock, "client (nid %s) returned %d"
" from %s AST - normal race",
libcfs_nid2str(peer.nid),
req->rq_repmsg ?
lustre_msg_get_status(req->rq_repmsg) : -1,
ast_type);
- else
+ if (res) {
+ /* update lvbo to return proper attributes.
+ * see bug 23174 */
+ ldlm_resource_getref(res);
+ ldlm_res_lvbo_update(res, NULL, 1);
+ ldlm_resource_putref(res);
+ }
+
+ } else {
LDLM_ERROR(lock, "client (nid %s) returned %d "
"from %s AST", libcfs_nid2str(peer.nid),
(req->rq_repmsg != NULL) ?
lustre_msg_get_status(req->rq_repmsg) : 0,
ast_type);
+ }
ldlm_lock_cancel(lock);
/* Server-side AST functions are called from ldlm_reprocess_all,
* which needs to be told to please restart its reprocessing. */
lock = req->rq_async_args.pointer_arg[1];
LASSERT(lock != NULL);
if (rc != 0) {
- /* If client canceled the lock but the cancel has not
- * been recieved yet, we need to update lvbo to have the
- * proper attributes cached. */
- if (rc == -EINVAL && arg->type == LDLM_BL_CALLBACK)
- ldlm_res_lvbo_update(lock->l_resource, NULL,
- 0, 1);
rc = ldlm_handle_ast_error(lock, req, rc,
arg->type == LDLM_BL_CALLBACK
? "blocking" : "completion");
LDLM_LOCK_RELEASE(lock);
if (rc == -ERESTART)
- atomic_set(&arg->restart, 1);
+ cfs_atomic_set(&arg->restart, 1);
RETURN(0);
}
if (rc == 0)
/* If we cancelled the lock, we need to restart
* ldlm_reprocess_queue */
- atomic_set(&arg->restart, 1);
+ cfs_atomic_set(&arg->restart, 1);
} else {
LDLM_LOCK_GET(lock);
ptlrpc_set_add_req(arg->set, req);
RETURN(rc);
}
+/**
+ * Check if there are requests in the export request list which prevent
+ * the lock canceling and make these requests high priority ones.
+ */
+static void ldlm_lock_reorder_req(struct ldlm_lock *lock)
+{
+ struct ptlrpc_request *req;
+ ENTRY;
+
+ if (lock->l_export == NULL) {
+ LDLM_DEBUG(lock, "client lock: no-op");
+ RETURN_EXIT;
+ }
+
+ cfs_spin_lock_bh(&lock->l_export->exp_rpc_lock);
+ cfs_list_for_each_entry(req, &lock->l_export->exp_queued_rpc,
+ rq_exp_list) {
+ if (!req->rq_hp && req->rq_ops->hpreq_lock_match &&
+ req->rq_ops->hpreq_lock_match(req, lock))
+ ptlrpc_hpreq_reorder(req);
+ }
+ cfs_spin_unlock_bh(&lock->l_export->exp_rpc_lock);
+ EXIT;
+}
+
/*
* ->l_blocking_ast() method for server-side locks. This is invoked when newly
* enqueued server lock conflicts with given one.
ldlm_lock_dump(D_ERROR, lock, 0);
}
+ ldlm_lock_reorder_req(lock);
+
req = ptlrpc_request_alloc_pack(lock->l_export->exp_imp_reverse,
&RQF_LDLM_BL_CALLBACK,
LUSTRE_DLM_VERSION, LDLM_BL_CALLBACK);
}
req->rq_send_state = LUSTRE_IMP_FULL;
- /* ptlrpc_prep_req already set timeout */
+ /* ptlrpc_request_alloc_pack already set timeout */
if (AT_OFF)
req->rq_timeout = ldlm_get_rq_timeout();
struct ldlm_cb_set_arg *arg = data;
struct ldlm_request *body;
struct ptlrpc_request *req;
- struct timeval granted_time;
long total_enqueue_wait;
int instant_cancel = 0;
int rc = 0;
LASSERT(lock != NULL);
LASSERT(data != NULL);
- do_gettimeofday(&granted_time);
- total_enqueue_wait = cfs_timeval_sub(&granted_time,
- &lock->l_enqueued_time, NULL);
-
- if (total_enqueue_wait / ONE_MILLION > obd_timeout)
- /* non-fatal with AT - change to LDLM_DEBUG? */
- LDLM_ERROR(lock, "enqueue wait took %luus from "CFS_TIME_T,
- total_enqueue_wait, lock->l_enqueued_time.tv_sec);
+ total_enqueue_wait = cfs_time_sub(cfs_time_current_sec(),
+ lock->l_last_activity);
req = ptlrpc_request_alloc(lock->l_export->exp_imp_reverse,
&RQF_LDLM_CP_CALLBACK);
if (req == NULL)
RETURN(-ENOMEM);
- lock_res_and_lock(lock);
- if (lock->l_resource->lr_lvb_len)
+ /* server namespace, doesn't need lock */
+ if (lock->l_resource->lr_lvb_len) {
req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_CLIENT,
lock->l_resource->lr_lvb_len);
- unlock_res_and_lock(lock);
+ }
rc = ptlrpc_request_pack(req, LUSTRE_DLM_VERSION, LDLM_CP_CALLBACK);
if (rc) {
if (lock->l_resource->lr_lvb_len) {
void *lvb = req_capsule_client_get(&req->rq_pill, &RMF_DLM_LVB);
- lock_res_and_lock(lock);
+ cfs_down(&lock->l_resource->lr_lvb_sem);
memcpy(lvb, lock->l_resource->lr_lvb_data,
lock->l_resource->lr_lvb_len);
- unlock_res_and_lock(lock);
+ cfs_up(&lock->l_resource->lr_lvb_sem);
}
- LDLM_DEBUG(lock, "server preparing completion AST (after %ldus wait)",
+ LDLM_DEBUG(lock, "server preparing completion AST (after %lds wait)",
total_enqueue_wait);
/* Server-side enqueue wait time estimate, used in
__ldlm_add_waiting_lock to set future enqueue timers */
- at_add(&lock->l_resource->lr_namespace->ns_at_estimate,
- total_enqueue_wait / ONE_MILLION);
+ if (total_enqueue_wait < ldlm_get_enq_timeout(lock))
+ at_measured(ldlm_lock_to_ns_at(lock),
+ total_enqueue_wait);
+ else
+ /* bz18618. Don't add lock enqueue time we spend waiting for a
+ previous callback to fail. Locks waiting legitimately will
+ get extended by ldlm_refresh_waiting_lock regardless of the
+ estimate, so it's okay to underestimate here. */
+ LDLM_DEBUG(lock, "lock completed after %lus; estimate was %ds. "
+ "It is likely that a previous callback timed out.",
+ total_enqueue_wait,
+ at_get(ldlm_lock_to_ns_at(lock)));
ptlrpc_request_set_replen(req);
req->rq_send_state = LUSTRE_IMP_FULL;
- /* ptlrpc_prep_req already set timeout */
+ /* ptlrpc_request_pack already set timeout */
if (AT_OFF)
req->rq_timeout = ldlm_get_rq_timeout();
lock_res_and_lock(lock);
if (lock->l_flags & LDLM_FL_AST_SENT) {
body->lock_flags |= LDLM_FL_AST_SENT;
+ /* copy ast flags like LDLM_FL_DISCARD_DATA */
+ body->lock_flags |= (lock->l_flags & LDLM_AST_FLAGS);
/* We might get here prior to ldlm_handle_enqueue setting
* LDLM_FL_CANCEL_ON_BLOCK flag. Then we will put this lock
body->lock_handle[0] = lock->l_remote_handle;
ldlm_lock2desc(lock, &body->lock_desc);
- lock_res_and_lock(lock);
+ /* server namespace, doesn't need lock */
req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
lock->l_resource->lr_lvb_len);
- unlock_res_and_lock(lock);
res = lock->l_resource;
ptlrpc_request_set_replen(req);
req->rq_send_state = LUSTRE_IMP_FULL;
- /* ptlrpc_prep_req already set timeout */
+ /* ptlrpc_request_alloc_pack already set timeout */
if (AT_OFF)
req->rq_timeout = ldlm_get_rq_timeout();
else if (rc != 0)
rc = ldlm_handle_ast_error(lock, req, rc, "glimpse");
else
- rc = ldlm_res_lvbo_update(res, req->rq_repmsg,
- REPLY_REC_OFF, 1);
+ rc = ldlm_res_lvbo_update(res, req, 1);
+
ptlrpc_req_finished(req);
if (rc == -ERESTART)
ldlm_reprocess_all(res);
if (op)
lprocfs_counter_incr(srv_stats, op);
- return ;
+ return;
}
/*
if (unlikely(flags & LDLM_FL_REPLAY)) {
/* Find an existing lock in the per-export lock hash */
- lock = lustre_hash_lookup(req->rq_export->exp_lock_hash,
- (void *)&dlm_req->lock_handle[0]);
+ lock = cfs_hash_lookup(req->rq_export->exp_lock_hash,
+ (void *)&dlm_req->lock_handle[0]);
if (lock != NULL) {
DEBUG_REQ(D_DLMTRACE, req, "found existing lock cookie "
LPX64, lock->l_handle.h_cookie);
if (!lock)
GOTO(out, rc = -ENOMEM);
- do_gettimeofday(&lock->l_enqueued_time);
+ lock->l_last_activity = cfs_time_current_sec();
lock->l_remote_handle = dlm_req->lock_handle[0];
LDLM_DEBUG(lock, "server-side enqueue handler, new lock created");
OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_ENQUEUE_BLOCKED, obd_timeout * 2);
- /* Don't enqueue a lock onto the export if it has already
- * been evicted. Cancel it now instead. (bug 3822) */
- if (req->rq_export->exp_failed) {
- LDLM_ERROR(lock, "lock on destroyed export %p", req->rq_export);
+ /* Don't enqueue a lock onto the export if it is been disonnected
+ * due to eviction (bug 3822) or server umount (bug 24324).
+ * Cancel it now instead. */
+ if (req->rq_export->exp_disconnected) {
+ LDLM_ERROR(lock, "lock on disconnected export %p",
+ req->rq_export);
GOTO(out, rc = -ENOTCONN);
}
- lock->l_export = class_export_get(req->rq_export);
+ lock->l_export = class_export_lock_get(req->rq_export, lock);
if (lock->l_export->exp_lock_hash)
- lustre_hash_add(lock->l_export->exp_lock_hash,
- &lock->l_remote_handle,
- &lock->l_exp_hash);
+ cfs_hash_add(lock->l_export->exp_lock_hash,
+ &lock->l_remote_handle,
+ &lock->l_exp_hash);
existing_lock:
* local_lock_enqueue by the policy function. */
cookie = req;
} else {
- lock_res_and_lock(lock);
if (lock->l_resource->lr_lvb_len) {
req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB,
RCL_SERVER,
lock->l_resource->lr_lvb_len);
}
- unlock_res_and_lock(lock);
if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR))
GOTO(out, rc = -ENOMEM);
dlm_rep->lock_flags |= dlm_req->lock_flags & LDLM_INHERIT_FLAGS;
lock->l_flags |= dlm_req->lock_flags & LDLM_INHERIT_FLAGS;
- /* Don't move a pending lock onto the export if it has already
- * been evicted. Cancel it now instead. (bug 5683) */
- if (unlikely(req->rq_export->exp_failed ||
+ /* Don't move a pending lock onto the export if it has already been
+ * disconnected due to eviction (bug 5683) or server umount (bug 24324).
+ * Cancel it now instead. */
+ if (unlikely(req->rq_export->exp_disconnected ||
OBD_FAIL_CHECK(OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT))) {
LDLM_ERROR(lock, "lock on destroyed export %p", req->rq_export);
rc = -ENOTCONN;
if (lock->l_granted_mode == lock->l_req_mode) {
/*
* Only cancel lock if it was granted, because it would
- * be destroyed immediatelly and would never be granted
+ * be destroyed immediately and would never be granted
* in the future, causing timeouts on client. Not
- * granted lock will be cancelled immediatelly after
+ * granted lock will be cancelled immediately after
* sending completion AST.
*/
if (dlm_rep->lock_flags & LDLM_FL_CANCEL_ON_BLOCK) {
if (unlikely(!(lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK) ||
!(dlm_rep->lock_flags & LDLM_FL_CANCEL_ON_BLOCK))){
CERROR("Granting sync lock to libclient. "
- "req fl %d, rep fl %d, lock fl %d\n",
+ "req fl %d, rep fl %d, lock fl "LPX64"\n",
dlm_req->lock_flags, dlm_rep->lock_flags,
lock->l_flags);
LDLM_ERROR(lock, "sync lock");
LDLM_DEBUG(lock, "server-side enqueue handler, sending reply"
"(err=%d, rc=%d)", err, rc);
- lock_res_and_lock(lock);
if (rc == 0) {
if (lock->l_resource->lr_lvb_len > 0) {
void *lvb;
LASSERTF(lvb != NULL, "req %p, lock %p\n",
req, lock);
+ cfs_down(&lock->l_resource->lr_lvb_sem);
memcpy(lvb, lock->l_resource->lr_lvb_data,
lock->l_resource->lr_lvb_len);
+ cfs_up(&lock->l_resource->lr_lvb_sem);
}
} else {
+ lock_res_and_lock(lock);
ldlm_resource_unlink_lock(lock);
ldlm_lock_destroy_nolock(lock);
+ unlock_res_and_lock(lock);
}
- unlock_res_and_lock(lock);
if (!err && dlm_req->lock_desc.l_resource.lr_type != LDLM_FLOCK)
ldlm_reprocess_all(lock->l_resource);
LDLM_DEBUG(lock, "server-side convert handler START");
- do_gettimeofday(&lock->l_enqueued_time);
+ lock->l_last_activity = cfs_time_current_sec();
res = ldlm_lock_convert(lock, dlm_req->lock_desc.l_req_mode,
&dlm_rep->lock_flags);
if (res) {
if (res != NULL) {
ldlm_resource_getref(res);
LDLM_RESOURCE_ADDREF(res);
- ldlm_res_lvbo_update(res, NULL, 0, 1);
+ ldlm_res_lvbo_update(res, NULL, 1);
}
pres = res;
}
if (!ldlm_request_cancel(req, dlm_req, 0))
req->rq_status = ESTALE;
- if (ptlrpc_reply(req) != 0)
- LBUG();
-
- RETURN(0);
+ RETURN(ptlrpc_reply(req));
}
void ldlm_handle_bl_callback(struct ldlm_namespace *ns,
int do_ast;
ENTRY;
- LDLM_DEBUG(lock, "client blocking AST callback handler START");
+ LDLM_DEBUG(lock, "client blocking AST callback handler");
lock_res_and_lock(lock);
lock->l_flags |= LDLM_FL_CBPENDING;
unlock_res_and_lock(lock);
if (do_ast) {
- LDLM_DEBUG(lock, "already unused, calling "
- "callback (%p)", lock->l_blocking_ast);
+ CDEBUG(D_DLMTRACE, "Lock %p already unused, calling callback (%p)\n",
+ lock, lock->l_blocking_ast);
if (lock->l_blocking_ast != NULL)
lock->l_blocking_ast(lock, ld, lock->l_ast_data,
LDLM_CB_BLOCKING);
} else {
- LDLM_DEBUG(lock, "Lock still has references, will be"
- " cancelled later");
+ CDEBUG(D_DLMTRACE, "Lock %p is referenced, will be cancelled later\n",
+ lock);
}
LDLM_DEBUG(lock, "client blocking callback handler END");
if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL_BL_CB_RACE)) {
int to = cfs_time_seconds(1);
while (to > 0) {
- cfs_schedule_timeout(CFS_TASK_INTERRUPTIBLE, to);
+ cfs_schedule_timeout_and_set_state(
+ CFS_TASK_INTERRUPTIBLE, to);
if (lock->l_granted_mode == lock->l_req_mode ||
lock->l_destroyed)
break;
LDLM_ERROR(lock, "completion AST did not contain "
"expected LVB!");
} else {
- void *lvb = req_capsule_client_swab_get(&req->rq_pill,
- &RMF_DLM_LVB,
- (void *)lock->l_lvb_swabber);
+ void *lvb = req_capsule_client_get(&req->rq_pill,
+ &RMF_DLM_LVB);
memcpy(lock->l_lvb_data, lvb, lock->l_lvb_len);
}
}
LDLM_DEBUG(lock, "callback handler finished, about to run_ast_work");
+ /* Let Enqueue to call osc_lock_upcall() and initialize
+ * l_ast_data */
+ OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_ENQ_RACE, 2);
+
ldlm_run_ast_work(&ast_list, LDLM_WORK_CP_AST);
LDLM_DEBUG_NOLOCK("client completion callback handler END (lock %p)",
}
#ifdef __KERNEL__
-static int ldlm_bl_to_thread(struct ldlm_namespace *ns,
- struct ldlm_lock_desc *ld, struct ldlm_lock *lock,
- struct list_head *cancels, int count)
+static int __ldlm_bl_to_thread(struct ldlm_bl_work_item *blwi, int mode)
{
struct ldlm_bl_pool *blp = ldlm_state->ldlm_bl_pool;
- struct ldlm_bl_work_item *blwi;
ENTRY;
- if (cancels && count == 0)
- RETURN(0);
+ cfs_spin_lock(&blp->blp_lock);
+ if (blwi->blwi_lock && blwi->blwi_lock->l_flags & LDLM_FL_DISCARD_DATA) {
+ /* add LDLM_FL_DISCARD_DATA requests to the priority list */
+ cfs_list_add_tail(&blwi->blwi_entry, &blp->blp_prio_list);
+ } else {
+ /* other blocking callbacks are added to the regular list */
+ cfs_list_add_tail(&blwi->blwi_entry, &blp->blp_list);
+ }
+ cfs_spin_unlock(&blp->blp_lock);
- OBD_ALLOC(blwi, sizeof(*blwi));
- if (blwi == NULL)
- RETURN(-ENOMEM);
+ cfs_waitq_signal(&blp->blp_waitq);
+
+ /* can not use blwi->blwi_mode as blwi could be already freed in
+ LDLM_ASYNC mode */
+ if (mode == LDLM_SYNC)
+ cfs_wait_for_completion(&blwi->blwi_comp);
+
+ RETURN(0);
+}
+
+static inline void init_blwi(struct ldlm_bl_work_item *blwi,
+ struct ldlm_namespace *ns,
+ struct ldlm_lock_desc *ld,
+ cfs_list_t *cancels, int count,
+ struct ldlm_lock *lock,
+ int mode)
+{
+ cfs_init_completion(&blwi->blwi_comp);
+ CFS_INIT_LIST_HEAD(&blwi->blwi_head);
+
+ if (cfs_memory_pressure_get())
+ blwi->blwi_mem_pressure = 1;
blwi->blwi_ns = ns;
+ blwi->blwi_mode = mode;
if (ld != NULL)
blwi->blwi_ld = *ld;
if (count) {
- list_add(&blwi->blwi_head, cancels);
- list_del_init(cancels);
+ cfs_list_add(&blwi->blwi_head, cancels);
+ cfs_list_del_init(cancels);
blwi->blwi_count = count;
} else {
blwi->blwi_lock = lock;
}
- spin_lock(&blp->blp_lock);
- if (lock && lock->l_flags & LDLM_FL_DISCARD_DATA) {
- /* add LDLM_FL_DISCARD_DATA requests to the priority list */
- list_add_tail(&blwi->blwi_entry, &blp->blp_prio_list);
+}
+
+static int ldlm_bl_to_thread(struct ldlm_namespace *ns,
+ struct ldlm_lock_desc *ld, struct ldlm_lock *lock,
+ cfs_list_t *cancels, int count, int mode)
+{
+ ENTRY;
+
+ if (cancels && count == 0)
+ RETURN(0);
+
+ if (mode == LDLM_SYNC) {
+ /* if it is synchronous call do minimum mem alloc, as it could
+ * be triggered from kernel shrinker
+ */
+ struct ldlm_bl_work_item blwi;
+ memset(&blwi, 0, sizeof(blwi));
+ init_blwi(&blwi, ns, ld, cancels, count, lock, LDLM_SYNC);
+ RETURN(__ldlm_bl_to_thread(&blwi, LDLM_SYNC));
} else {
- /* other blocking callbacks are added to the regular list */
- list_add_tail(&blwi->blwi_entry, &blp->blp_list);
- }
- cfs_waitq_signal(&blp->blp_waitq);
- spin_unlock(&blp->blp_lock);
+ struct ldlm_bl_work_item *blwi;
+ OBD_ALLOC(blwi, sizeof(*blwi));
+ if (blwi == NULL)
+ RETURN(-ENOMEM);
+ init_blwi(blwi, ns, ld, cancels, count, lock, LDLM_ASYNC);
- RETURN(0);
+ RETURN(__ldlm_bl_to_thread(blwi, LDLM_ASYNC));
+ }
}
+
#endif
int ldlm_bl_to_thread_lock(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
struct ldlm_lock *lock)
{
#ifdef __KERNEL__
- RETURN(ldlm_bl_to_thread(ns, ld, lock, NULL, 0));
+ RETURN(ldlm_bl_to_thread(ns, ld, lock, NULL, 0, LDLM_ASYNC));
#else
RETURN(-ENOSYS);
#endif
}
int ldlm_bl_to_thread_list(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
- struct list_head *cancels, int count)
+ cfs_list_t *cancels, int count, int mode)
{
#ifdef __KERNEL__
- RETURN(ldlm_bl_to_thread(ns, ld, NULL, cancels, count));
+ RETURN(ldlm_bl_to_thread(ns, ld, NULL, cancels, count, mode));
#else
RETURN(-ENOSYS);
#endif
}
+/* Setinfo coming from Server (eg MDT) to Client (eg MDC)! */
+static int ldlm_handle_setinfo(struct ptlrpc_request *req)
+{
+ struct obd_device *obd = req->rq_export->exp_obd;
+ char *key;
+ void *val;
+ int keylen, vallen;
+ int rc = -ENOSYS;
+ ENTRY;
+
+ DEBUG_REQ(D_HSM, req, "%s: handle setinfo\n", obd->obd_name);
+
+ req_capsule_set(&req->rq_pill, &RQF_OBD_SET_INFO);
+
+ key = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
+ if (key == NULL) {
+ DEBUG_REQ(D_IOCTL, req, "no set_info key");
+ RETURN(-EFAULT);
+ }
+ keylen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_KEY,
+ RCL_CLIENT);
+ val = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
+ if (val == NULL) {
+ DEBUG_REQ(D_IOCTL, req, "no set_info val");
+ RETURN(-EFAULT);
+ }
+ vallen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_VAL,
+ RCL_CLIENT);
+
+ /* We are responsible for swabbing contents of val */
+
+ if (KEY_IS(KEY_HSM_COPYTOOL_SEND))
+ /* Pass it on to mdc (the "export" in this case) */
+ rc = obd_set_info_async(req->rq_export,
+ sizeof(KEY_HSM_COPYTOOL_SEND),
+ KEY_HSM_COPYTOOL_SEND,
+ vallen, val, NULL);
+ else
+ DEBUG_REQ(D_WARNING, req, "ignoring unknown key %s", key);
+
+ return rc;
+}
+
+static inline void ldlm_callback_errmsg(struct ptlrpc_request *req,
+ const char *msg, int rc,
+ struct lustre_handle *handle)
+{
+ DEBUG_REQ((req->rq_no_reply || rc) ? D_WARNING : D_DLMTRACE, req,
+ "%s: [nid %s] [rc %d] [lock "LPX64"]",
+ msg, libcfs_id2str(req->rq_peer), rc,
+ handle ? handle->cookie : 0);
+ if (req->rq_no_reply)
+ CWARN("No reply was sent, maybe cause bug 21636.\n");
+ else if (rc)
+ CWARN("Send reply failed, maybe cause bug 21636.\n");
+}
+
/* TODO: handle requests in a similar way as MDT: see mdt_handle_common() */
static int ldlm_callback_handler(struct ptlrpc_request *req)
{
req_capsule_init(&req->rq_pill, req, RCL_SERVER);
if (req->rq_export == NULL) {
- struct ldlm_request *dlm_req;
-
- CDEBUG(D_RPCTRACE, "operation %d from %s with bad "
- "export cookie "LPX64"; this is "
- "normal if this node rebooted with a lock held\n",
- lustre_msg_get_opc(req->rq_reqmsg),
- libcfs_id2str(req->rq_peer),
- lustre_msg_get_handle(req->rq_reqmsg)->cookie);
-
- req_capsule_set(&req->rq_pill, &RQF_LDLM_CALLBACK);
- dlm_req = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
- if (dlm_req != NULL)
- CDEBUG(D_RPCTRACE, "--> lock cookie: "LPX64"\n",
- dlm_req->lock_handle[0].cookie);
-
- ldlm_callback_reply(req, -ENOTCONN);
+ rc = ldlm_callback_reply(req, -ENOTCONN);
+ ldlm_callback_errmsg(req, "Operate on unconnected server",
+ rc, NULL);
RETURN(0);
}
if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_GL_CALLBACK))
RETURN(0);
break;
+ case LDLM_SET_INFO:
+ rc = ldlm_handle_setinfo(req);
+ ldlm_callback_reply(req, rc);
+ RETURN(0);
case OBD_LOG_CANCEL: /* remove this eventually - for 1.4.0 compat */
+ CERROR("shouldn't be handling OBD_LOG_CANCEL on DLM thread\n");
req_capsule_set(&req->rq_pill, &RQF_LOG_CANCEL);
if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_NET))
RETURN(0);
rc = llog_origin_handle_cancel(req);
+ if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_REP))
+ RETURN(0);
ldlm_callback_reply(req, rc);
RETURN(0);
case OBD_QC_CALLBACK:
dlm_req = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
if (dlm_req == NULL) {
- ldlm_callback_reply(req, -EPROTO);
+ rc = ldlm_callback_reply(req, -EPROTO);
+ ldlm_callback_errmsg(req, "Operate without parameter", rc,
+ NULL);
RETURN(0);
}
if (!lock) {
CDEBUG(D_DLMTRACE, "callback on lock "LPX64" - lock "
"disappeared\n", dlm_req->lock_handle[0].cookie);
- ldlm_callback_reply(req, -EINVAL);
+ rc = ldlm_callback_reply(req, -EINVAL);
+ ldlm_callback_errmsg(req, "Operate with invalid parameter", rc,
+ &dlm_req->lock_handle[0]);
RETURN(0);
}
+ if ((lock->l_flags & LDLM_FL_FAIL_LOC) &&
+ lustre_msg_get_opc(req->rq_reqmsg) == LDLM_BL_CALLBACK)
+ OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE);
+
/* Copy hints/flags (e.g. LDLM_FL_DISCARD_DATA) from AST. */
lock_res_and_lock(lock);
lock->l_flags |= (dlm_req->lock_flags & LDLM_AST_FLAGS);
if (lustre_msg_get_opc(req->rq_reqmsg) == LDLM_BL_CALLBACK) {
- /* If somebody cancels locks and cache is already droped,
+ /* If somebody cancels lock and cache is already dropped,
+ * or lock is failed before cp_ast received on client,
* we can tell the server we have no lock. Otherwise, we
* should send cancel after dropping the cache. */
- if ((lock->l_flags & LDLM_FL_CANCELING) &&
- (lock->l_flags & LDLM_FL_BL_DONE)) {
+ if (((lock->l_flags & LDLM_FL_CANCELING) &&
+ (lock->l_flags & LDLM_FL_BL_DONE)) ||
+ (lock->l_flags & LDLM_FL_FAILED)) {
LDLM_DEBUG(lock, "callback on lock "
LPX64" - lock disappeared\n",
dlm_req->lock_handle[0].cookie);
unlock_res_and_lock(lock);
LDLM_LOCK_RELEASE(lock);
- ldlm_callback_reply(req, -EINVAL);
+ rc = ldlm_callback_reply(req, -EINVAL);
+ ldlm_callback_errmsg(req, "Operate on stale lock", rc,
+ &dlm_req->lock_handle[0]);
RETURN(0);
}
/* BL_AST locks are not needed in lru.
case LDLM_BL_CALLBACK:
CDEBUG(D_INODE, "blocking ast\n");
req_capsule_extend(&req->rq_pill, &RQF_LDLM_BL_CALLBACK);
- if (!(lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK))
- ldlm_callback_reply(req, 0);
+ if (!(lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK)) {
+ rc = ldlm_callback_reply(req, 0);
+ if (req->rq_no_reply || rc)
+ ldlm_callback_errmsg(req, "Normal process", rc,
+ &dlm_req->lock_handle[0]);
+ }
if (ldlm_bl_to_thread_lock(ns, &dlm_req->lock_desc, lock))
ldlm_handle_bl_callback(ns, &dlm_req->lock_desc, lock);
break;
if (req->rq_export == NULL) {
struct ldlm_request *dlm_req;
- CERROR("operation %d from %s with bad export cookie "LPU64"\n",
- lustre_msg_get_opc(req->rq_reqmsg),
- libcfs_id2str(req->rq_peer),
+ CERROR("%s from %s arrived at %lu with bad export cookie "
+ LPU64"\n",
+ ll_opcode2str(lustre_msg_get_opc(req->rq_reqmsg)),
+ libcfs_nid2str(req->rq_peer.nid),
+ req->rq_arrival_time.tv_sec,
lustre_msg_get_handle(req->rq_reqmsg)->cookie);
- req_capsule_set(&req->rq_pill, &RQF_LDLM_CALLBACK);
- dlm_req = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
- if (dlm_req != NULL)
- ldlm_lock_dump_handle(D_ERROR,
- &dlm_req->lock_handle[0]);
+ if (lustre_msg_get_opc(req->rq_reqmsg) == LDLM_CANCEL) {
+ req_capsule_set(&req->rq_pill, &RQF_LDLM_CALLBACK);
+ dlm_req = req_capsule_client_get(&req->rq_pill,
+ &RMF_DLM_REQ);
+ if (dlm_req != NULL)
+ ldlm_lock_dump_handle(D_ERROR,
+ &dlm_req->lock_handle[0]);
+ }
ldlm_callback_reply(req, -ENOTCONN);
RETURN(0);
}
if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_NET))
RETURN(0);
rc = llog_origin_handle_cancel(req);
+ if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_REP))
+ RETURN(0);
ldlm_callback_reply(req, rc);
RETURN(0);
default:
RETURN(0);
}
-void ldlm_revoke_lock_cb(void *obj, void *data)
+int ldlm_revoke_lock_cb(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+ cfs_hlist_node_t *hnode, void *data)
+
{
- struct list_head *rpc_list = data;
- struct ldlm_lock *lock = obj;
+ cfs_list_t *rpc_list = data;
+ struct ldlm_lock *lock = cfs_hash_object(hs, hnode);
lock_res_and_lock(lock);
if (lock->l_req_mode != lock->l_granted_mode) {
unlock_res_and_lock(lock);
- return;
+ return 0;
}
LASSERT(lock->l_resource);
if (lock->l_resource->lr_type != LDLM_IBITS &&
lock->l_resource->lr_type != LDLM_PLAIN) {
unlock_res_and_lock(lock);
- return;
+ return 0;
}
if (lock->l_flags & LDLM_FL_AST_SENT) {
unlock_res_and_lock(lock);
- return;
+ return 0;
}
LASSERT(lock->l_blocking_ast);
LASSERT(!lock->l_blocking_lock);
lock->l_flags |= LDLM_FL_AST_SENT;
- if (lock->l_export && lock->l_export->exp_lock_hash)
- lustre_hash_del(lock->l_export->exp_lock_hash,
- &lock->l_remote_handle, &lock->l_exp_hash);
- list_add_tail(&lock->l_rk_ast, rpc_list);
+ if (lock->l_export && lock->l_export->exp_lock_hash &&
+ !cfs_hlist_unhashed(&lock->l_exp_hash))
+ cfs_hash_del(lock->l_export->exp_lock_hash,
+ &lock->l_remote_handle, &lock->l_exp_hash);
+ cfs_list_add_tail(&lock->l_rk_ast, rpc_list);
LDLM_LOCK_GET(lock);
unlock_res_and_lock(lock);
+ return 0;
}
void ldlm_revoke_export_locks(struct obd_export *exp)
{
- struct list_head rpc_list;
+ cfs_list_t rpc_list;
ENTRY;
CFS_INIT_LIST_HEAD(&rpc_list);
- lustre_hash_for_each_empty(exp->exp_lock_hash,
- ldlm_revoke_lock_cb, &rpc_list);
+ cfs_hash_for_each_empty(exp->exp_lock_hash,
+ ldlm_revoke_lock_cb, &rpc_list);
ldlm_run_ast_work(&rpc_list, LDLM_WORK_REVOKE_AST);
EXIT;
struct ldlm_bl_work_item *blwi = NULL;
static unsigned int num_bl = 0;
- spin_lock(&blp->blp_lock);
+ cfs_spin_lock(&blp->blp_lock);
/* process a request from the blp_list at least every blp_num_threads */
- if (!list_empty(&blp->blp_list) &&
- (list_empty(&blp->blp_prio_list) || num_bl == 0))
- blwi = list_entry(blp->blp_list.next,
- struct ldlm_bl_work_item, blwi_entry);
+ if (!cfs_list_empty(&blp->blp_list) &&
+ (cfs_list_empty(&blp->blp_prio_list) || num_bl == 0))
+ blwi = cfs_list_entry(blp->blp_list.next,
+ struct ldlm_bl_work_item, blwi_entry);
else
- if (!list_empty(&blp->blp_prio_list))
- blwi = list_entry(blp->blp_prio_list.next,
- struct ldlm_bl_work_item, blwi_entry);
+ if (!cfs_list_empty(&blp->blp_prio_list))
+ blwi = cfs_list_entry(blp->blp_prio_list.next,
+ struct ldlm_bl_work_item,
+ blwi_entry);
if (blwi) {
- if (++num_bl >= atomic_read(&blp->blp_num_threads))
+ if (++num_bl >= cfs_atomic_read(&blp->blp_num_threads))
num_bl = 0;
- list_del(&blwi->blwi_entry);
+ cfs_list_del(&blwi->blwi_entry);
}
- spin_unlock(&blp->blp_lock);
+ cfs_spin_unlock(&blp->blp_lock);
return blwi;
}
struct ldlm_bl_thread_data {
char bltd_name[CFS_CURPROC_COMM_MAX];
struct ldlm_bl_pool *bltd_blp;
- struct completion bltd_comp;
+ cfs_completion_t bltd_comp;
int bltd_num;
};
struct ldlm_bl_thread_data bltd = { .bltd_blp = blp };
int rc;
- init_completion(&bltd.bltd_comp);
+ cfs_init_completion(&bltd.bltd_comp);
rc = cfs_kernel_thread(ldlm_bl_thread_main, &bltd, 0);
if (rc < 0) {
CERROR("cannot start LDLM thread ldlm_bl_%02d: rc %d\n",
- atomic_read(&blp->blp_num_threads), rc);
+ cfs_atomic_read(&blp->blp_num_threads), rc);
return rc;
}
- wait_for_completion(&bltd.bltd_comp);
+ cfs_wait_for_completion(&bltd.bltd_comp);
return 0;
}
blp = bltd->bltd_blp;
- bltd->bltd_num = atomic_inc_return(&blp->blp_num_threads) - 1;
- atomic_inc(&blp->blp_busy_threads);
+ bltd->bltd_num =
+ cfs_atomic_inc_return(&blp->blp_num_threads) - 1;
+ cfs_atomic_inc(&blp->blp_busy_threads);
snprintf(bltd->bltd_name, sizeof(bltd->bltd_name) - 1,
"ldlm_bl_%02d", bltd->bltd_num);
cfs_daemonize(bltd->bltd_name);
- complete(&bltd->bltd_comp);
+ cfs_complete(&bltd->bltd_comp);
/* cannot use bltd after this, it is only on caller's stack */
}
if (blwi == NULL) {
int busy;
- atomic_dec(&blp->blp_busy_threads);
+ cfs_atomic_dec(&blp->blp_busy_threads);
l_wait_event_exclusive(blp->blp_waitq,
(blwi = ldlm_bl_get_work(blp)) != NULL,
&lwi);
- busy = atomic_inc_return(&blp->blp_busy_threads);
+ busy = cfs_atomic_inc_return(&blp->blp_busy_threads);
if (blwi->blwi_ns == NULL)
/* added by ldlm_cleanup() */
/* Not fatal if racy and have a few too many threads */
if (unlikely(busy < blp->blp_max_threads &&
- busy >= atomic_read(&blp->blp_num_threads)))
+ busy >= cfs_atomic_read(&blp->blp_num_threads)))
/* discard the return value, we tried */
ldlm_bl_thread_start(blp);
} else {
/* added by ldlm_cleanup() */
break;
}
+ if (blwi->blwi_mem_pressure)
+ cfs_memory_pressure_set();
if (blwi->blwi_count) {
+ int count;
/* The special case when we cancel locks in lru
* asynchronously, we pass the list of locks here.
- * Thus lock is marked LDLM_FL_CANCELING, and already
- * canceled locally. */
- ldlm_cli_cancel_list(&blwi->blwi_head,
- blwi->blwi_count, NULL, 0);
+ * Thus locks are marked LDLM_FL_CANCELING, but NOT
+ * canceled locally yet. */
+ count = ldlm_cli_cancel_list_local(&blwi->blwi_head,
+ blwi->blwi_count,
+ LCF_BL_AST);
+ ldlm_cli_cancel_list(&blwi->blwi_head, count, NULL, 0);
} else {
ldlm_handle_bl_callback(blwi->blwi_ns, &blwi->blwi_ld,
blwi->blwi_lock);
}
- OBD_FREE(blwi, sizeof(*blwi));
+ if (blwi->blwi_mem_pressure)
+ cfs_memory_pressure_clr();
+
+ if (blwi->blwi_mode == LDLM_ASYNC)
+ OBD_FREE(blwi, sizeof(*blwi));
+ else
+ cfs_complete(&blwi->blwi_comp);
}
- atomic_dec(&blp->blp_busy_threads);
- atomic_dec(&blp->blp_num_threads);
- complete(&blp->blp_comp);
+ cfs_atomic_dec(&blp->blp_busy_threads);
+ cfs_atomic_dec(&blp->blp_num_threads);
+ cfs_complete(&blp->blp_comp);
RETURN(0);
}
{
int rc = 0;
ENTRY;
- mutex_down(&ldlm_ref_sem);
+ cfs_mutex_down(&ldlm_ref_sem);
if (++ldlm_refcount == 1) {
rc = ldlm_setup();
if (rc)
ldlm_refcount--;
}
- mutex_up(&ldlm_ref_sem);
+ cfs_mutex_up(&ldlm_ref_sem);
RETURN(rc);
}
void ldlm_put_ref(void)
{
ENTRY;
- mutex_down(&ldlm_ref_sem);
+ cfs_mutex_down(&ldlm_ref_sem);
if (ldlm_refcount == 1) {
int rc = ldlm_cleanup();
if (rc)
} else {
ldlm_refcount--;
}
- mutex_up(&ldlm_ref_sem);
+ cfs_mutex_up(&ldlm_ref_sem);
EXIT;
}
* Export handle<->lock hash operations.
*/
static unsigned
-ldlm_export_lock_hash(lustre_hash_t *lh, void *key, unsigned mask)
+ldlm_export_lock_hash(cfs_hash_t *hs, void *key, unsigned mask)
{
- return lh_u64_hash(((struct lustre_handle *)key)->cookie, mask);
+ return cfs_hash_u64_hash(((struct lustre_handle *)key)->cookie, mask);
}
static void *
-ldlm_export_lock_key(struct hlist_node *hnode)
+ldlm_export_lock_key(cfs_hlist_node_t *hnode)
{
struct ldlm_lock *lock;
- ENTRY;
- lock = hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
- RETURN(&lock->l_remote_handle);
+ lock = cfs_hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
+ return &lock->l_remote_handle;
+}
+
+static void
+ldlm_export_lock_keycpy(cfs_hlist_node_t *hnode, void *key)
+{
+ struct ldlm_lock *lock;
+
+ lock = cfs_hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
+ lock->l_remote_handle = *(struct lustre_handle *)key;
}
static int
-ldlm_export_lock_compare(void *key, struct hlist_node *hnode)
+ldlm_export_lock_keycmp(void *key, cfs_hlist_node_t *hnode)
{
- ENTRY;
- RETURN(lustre_handle_equal(ldlm_export_lock_key(hnode), key));
+ return lustre_handle_equal(ldlm_export_lock_key(hnode), key);
}
static void *
-ldlm_export_lock_get(struct hlist_node *hnode)
+ldlm_export_lock_object(cfs_hlist_node_t *hnode)
+{
+ return cfs_hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
+}
+
+static void
+ldlm_export_lock_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
{
struct ldlm_lock *lock;
- ENTRY;
- lock = hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
+ lock = cfs_hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
LDLM_LOCK_GET(lock);
-
- RETURN(lock);
}
-static void *
-ldlm_export_lock_put(struct hlist_node *hnode)
+static void
+ldlm_export_lock_put(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
{
struct ldlm_lock *lock;
- ENTRY;
- lock = hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
+ lock = cfs_hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
LDLM_LOCK_RELEASE(lock);
-
- RETURN(lock);
}
-static lustre_hash_ops_t ldlm_export_lock_ops = {
- .lh_hash = ldlm_export_lock_hash,
- .lh_key = ldlm_export_lock_key,
- .lh_compare = ldlm_export_lock_compare,
- .lh_get = ldlm_export_lock_get,
- .lh_put = ldlm_export_lock_put
+static cfs_hash_ops_t ldlm_export_lock_ops = {
+ .hs_hash = ldlm_export_lock_hash,
+ .hs_key = ldlm_export_lock_key,
+ .hs_keycmp = ldlm_export_lock_keycmp,
+ .hs_keycpy = ldlm_export_lock_keycpy,
+ .hs_object = ldlm_export_lock_object,
+ .hs_get = ldlm_export_lock_get,
+ .hs_put = ldlm_export_lock_put,
+ .hs_put_locked = ldlm_export_lock_put,
};
int ldlm_init_export(struct obd_export *exp)
ENTRY;
exp->exp_lock_hash =
- lustre_hash_init(obd_uuid2str(&exp->exp_client_uuid),
- 128, 65536, &ldlm_export_lock_ops, LH_REHASH);
+ cfs_hash_create(obd_uuid2str(&exp->exp_client_uuid),
+ HASH_EXP_LOCK_CUR_BITS,
+ HASH_EXP_LOCK_MAX_BITS,
+ HASH_EXP_LOCK_BKT_BITS, 0,
+ CFS_HASH_MIN_THETA, CFS_HASH_MAX_THETA,
+ &ldlm_export_lock_ops,
+ CFS_HASH_DEFAULT | CFS_HASH_REHASH_KEY |
+ CFS_HASH_NBLK_CHANGE);
if (!exp->exp_lock_hash)
RETURN(-ENOMEM);
void ldlm_destroy_export(struct obd_export *exp)
{
ENTRY;
- lustre_hash_exit(exp->exp_lock_hash);
+ cfs_hash_putref(exp->exp_lock_hash);
exp->exp_lock_hash = NULL;
EXIT;
}
ldlm_state->ldlm_cb_service =
ptlrpc_init_svc(LDLM_NBUFS, LDLM_BUFSIZE, LDLM_MAXREQSIZE,
LDLM_MAXREPSIZE, LDLM_CB_REQUEST_PORTAL,
- LDLM_CB_REPLY_PORTAL, 1800,
+ LDLM_CB_REPLY_PORTAL, 2,
ldlm_callback_handler, "ldlm_cbd",
ldlm_svc_proc_dir, NULL,
ldlm_min_threads, ldlm_max_threads,
"ldlm_cb",
- LCT_MD_THREAD|LCT_DT_THREAD);
+ LCT_MD_THREAD|LCT_DT_THREAD, NULL);
if (!ldlm_state->ldlm_cb_service) {
CERROR("failed to start service\n");
ldlm_state->ldlm_cancel_service =
ptlrpc_init_svc(LDLM_NBUFS, LDLM_BUFSIZE, LDLM_MAXREQSIZE,
LDLM_MAXREPSIZE, LDLM_CANCEL_REQUEST_PORTAL,
- LDLM_CANCEL_REPLY_PORTAL, 6000,
+ LDLM_CANCEL_REPLY_PORTAL, 6,
ldlm_cancel_handler, "ldlm_canceld",
ldlm_svc_proc_dir, NULL,
ldlm_min_threads, ldlm_max_threads,
"ldlm_cn",
- LCT_MD_THREAD|LCT_DT_THREAD|LCT_CL_THREAD);
+ LCT_MD_THREAD|LCT_DT_THREAD|LCT_CL_THREAD,
+ NULL);
if (!ldlm_state->ldlm_cancel_service) {
CERROR("failed to start service\n");
GOTO(out_proc, rc = -ENOMEM);
ldlm_state->ldlm_bl_pool = blp;
- spin_lock_init(&blp->blp_lock);
+ cfs_spin_lock_init(&blp->blp_lock);
CFS_INIT_LIST_HEAD(&blp->blp_list);
CFS_INIT_LIST_HEAD(&blp->blp_prio_list);
cfs_waitq_init(&blp->blp_waitq);
- atomic_set(&blp->blp_num_threads, 0);
- atomic_set(&blp->blp_busy_threads, 0);
+ cfs_atomic_set(&blp->blp_num_threads, 0);
+ cfs_atomic_set(&blp->blp_busy_threads, 0);
blp->blp_min_threads = ldlm_min_threads;
blp->blp_max_threads = ldlm_max_threads;
GOTO(out_thread, rc);
}
- rc = ptlrpc_start_threads(NULL, ldlm_state->ldlm_cancel_service);
+ rc = ptlrpc_start_threads(ldlm_state->ldlm_cancel_service);
if (rc)
GOTO(out_thread, rc);
- rc = ptlrpc_start_threads(NULL, ldlm_state->ldlm_cb_service);
+ rc = ptlrpc_start_threads(ldlm_state->ldlm_cb_service);
if (rc)
GOTO(out_thread, rc);
cfs_waitq_init(&expired_lock_thread.elt_waitq);
CFS_INIT_LIST_HEAD(&waiting_locks_list);
- spin_lock_init(&waiting_locks_spinlock);
+ cfs_spin_lock_init(&waiting_locks_spinlock);
cfs_timer_init(&waiting_locks_timer, waiting_locks_callback, 0);
rc = cfs_kernel_thread(expired_lock_main, NULL, CLONE_VM | CLONE_FILES);
GOTO(out_thread, rc);
}
- wait_event(expired_lock_thread.elt_waitq,
- expired_lock_thread.elt_state == ELT_READY);
+ cfs_wait_event(expired_lock_thread.elt_waitq,
+ expired_lock_thread.elt_state == ELT_READY);
#endif
#ifdef __KERNEL__
#endif
ENTRY;
- if (!list_empty(ldlm_namespace_list(LDLM_NAMESPACE_SERVER)) ||
- !list_empty(ldlm_namespace_list(LDLM_NAMESPACE_CLIENT))) {
+ if (!cfs_list_empty(ldlm_namespace_list(LDLM_NAMESPACE_SERVER)) ||
+ !cfs_list_empty(ldlm_namespace_list(LDLM_NAMESPACE_CLIENT))) {
CERROR("ldlm still has namespaces; clean these up first.\n");
ldlm_dump_all_namespaces(LDLM_NAMESPACE_SERVER, D_DLMTRACE);
ldlm_dump_all_namespaces(LDLM_NAMESPACE_CLIENT, D_DLMTRACE);
#endif
#ifdef __KERNEL__
- while (atomic_read(&blp->blp_num_threads) > 0) {
+ while (cfs_atomic_read(&blp->blp_num_threads) > 0) {
struct ldlm_bl_work_item blwi = { .blwi_ns = NULL };
- init_completion(&blp->blp_comp);
+ cfs_init_completion(&blp->blp_comp);
- spin_lock(&blp->blp_lock);
- list_add_tail(&blwi.blwi_entry, &blp->blp_list);
+ cfs_spin_lock(&blp->blp_lock);
+ cfs_list_add_tail(&blwi.blwi_entry, &blp->blp_list);
cfs_waitq_signal(&blp->blp_waitq);
- spin_unlock(&blp->blp_lock);
+ cfs_spin_unlock(&blp->blp_lock);
- wait_for_completion(&blp->blp_comp);
+ cfs_wait_for_completion(&blp->blp_comp);
}
OBD_FREE(blp, sizeof(*blp));
expired_lock_thread.elt_state = ELT_TERMINATE;
cfs_waitq_signal(&expired_lock_thread.elt_waitq);
- wait_event(expired_lock_thread.elt_waitq,
- expired_lock_thread.elt_state == ELT_STOPPED);
+ cfs_wait_event(expired_lock_thread.elt_waitq,
+ expired_lock_thread.elt_state == ELT_STOPPED);
#else
ptlrpc_unregister_service(ldlm_state->ldlm_cb_service);
ptlrpc_unregister_service(ldlm_state->ldlm_cancel_service);
int __init ldlm_init(void)
{
- init_mutex(&ldlm_ref_sem);
- init_mutex(ldlm_namespace_lock(LDLM_NAMESPACE_SERVER));
- init_mutex(ldlm_namespace_lock(LDLM_NAMESPACE_CLIENT));
+ cfs_init_mutex(&ldlm_ref_sem);
+ cfs_init_mutex(ldlm_namespace_lock(LDLM_NAMESPACE_SERVER));
+ cfs_init_mutex(ldlm_namespace_lock(LDLM_NAMESPACE_CLIENT));
ldlm_resource_slab = cfs_mem_cache_create("ldlm_resources",
sizeof(struct ldlm_resource), 0,
- SLAB_HWCACHE_ALIGN);
+ CFS_SLAB_HWCACHE_ALIGN);
if (ldlm_resource_slab == NULL)
return -ENOMEM;
ldlm_lock_slab = cfs_mem_cache_create("ldlm_locks",
- sizeof(struct ldlm_lock), 0,
- SLAB_HWCACHE_ALIGN);
+ sizeof(struct ldlm_lock), 0,
+ CFS_SLAB_HWCACHE_ALIGN | CFS_SLAB_DESTROY_BY_RCU);
if (ldlm_lock_slab == NULL) {
cfs_mem_cache_destroy(ldlm_resource_slab);
return -ENOMEM;
ldlm_interval_slab = cfs_mem_cache_create("interval_node",
sizeof(struct ldlm_interval),
- 0, SLAB_HWCACHE_ALIGN);
+ 0, CFS_SLAB_HWCACHE_ALIGN);
if (ldlm_interval_slab == NULL) {
cfs_mem_cache_destroy(ldlm_resource_slab);
cfs_mem_cache_destroy(ldlm_lock_slab);
return -ENOMEM;
}
-
+#if LUSTRE_TRACKS_LOCK_EXP_REFS
+ class_export_dump_hook = ldlm_dump_export_locks;
+#endif
return 0;
}
CERROR("ldlm_refcount is %d in ldlm_exit!\n", ldlm_refcount);
rc = cfs_mem_cache_destroy(ldlm_resource_slab);
LASSERTF(rc == 0, "couldn't free ldlm resource slab\n");
+#ifdef __KERNEL__
+ /* ldlm_lock_put() use RCU to call ldlm_lock_free, so need call
+ * synchronize_rcu() to wait a grace period elapsed, so that
+ * ldlm_lock_free() get a chance to be called. */
+ synchronize_rcu();
+#endif
rc = cfs_mem_cache_destroy(ldlm_lock_slab);
LASSERTF(rc == 0, "couldn't free ldlm lock slab\n");
rc = cfs_mem_cache_destroy(ldlm_interval_slab);
EXPORT_SYMBOL(__ldlm_handle2lock);
EXPORT_SYMBOL(ldlm_lock_get);
EXPORT_SYMBOL(ldlm_lock_put);
-EXPORT_SYMBOL(ldlm_lock_fast_match);
-EXPORT_SYMBOL(ldlm_lock_fast_release);
EXPORT_SYMBOL(ldlm_lock_match);
EXPORT_SYMBOL(ldlm_lock_cancel);
EXPORT_SYMBOL(ldlm_lock_addref);
EXPORT_SYMBOL(ldlm_lock_decref);
EXPORT_SYMBOL(ldlm_lock_decref_and_cancel);
EXPORT_SYMBOL(ldlm_lock_change_resource);
-EXPORT_SYMBOL(ldlm_lock_set_data);
EXPORT_SYMBOL(ldlm_it2str);
EXPORT_SYMBOL(ldlm_lock_dump);
EXPORT_SYMBOL(ldlm_lock_dump_handle);
-EXPORT_SYMBOL(ldlm_cancel_locks_for_export);
EXPORT_SYMBOL(ldlm_reprocess_all_ns);
+EXPORT_SYMBOL(ldlm_lock_allow_match_locked);
EXPORT_SYMBOL(ldlm_lock_allow_match);
+EXPORT_SYMBOL(ldlm_lock_downgrade);
+EXPORT_SYMBOL(ldlm_lock_convert);
/* ldlm_request.c */
EXPORT_SYMBOL(ldlm_completion_ast_async);
+EXPORT_SYMBOL(ldlm_blocking_ast_nocheck);
EXPORT_SYMBOL(ldlm_completion_ast);
EXPORT_SYMBOL(ldlm_blocking_ast);
EXPORT_SYMBOL(ldlm_glimpse_ast);
EXPORT_SYMBOL(ldlm_replay_locks);
EXPORT_SYMBOL(ldlm_resource_foreach);
EXPORT_SYMBOL(ldlm_namespace_foreach);
-EXPORT_SYMBOL(ldlm_namespace_foreach_res);
EXPORT_SYMBOL(ldlm_resource_iterate);
EXPORT_SYMBOL(ldlm_cancel_resource_local);
+EXPORT_SYMBOL(ldlm_cli_cancel_list_local);
EXPORT_SYMBOL(ldlm_cli_cancel_list);
/* ldlm_lockd.c */
EXPORT_SYMBOL(client_obd_cleanup);
EXPORT_SYMBOL(client_connect_import);
EXPORT_SYMBOL(client_disconnect_export);
-EXPORT_SYMBOL(target_start_recovery_thread);
+EXPORT_SYMBOL(server_disconnect_export);
EXPORT_SYMBOL(target_stop_recovery_thread);
EXPORT_SYMBOL(target_handle_connect);
EXPORT_SYMBOL(target_cleanup_recovery);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff