/* lock types */
char *ldlm_lockname[] = {
- [0] "--",
- [LCK_EX] "EX",
- [LCK_PW] "PW",
- [LCK_PR] "PR",
- [LCK_CW] "CW",
- [LCK_CR] "CR",
- [LCK_NL] "NL",
- [LCK_GROUP] "GROUP",
- [LCK_COS] "COS"
+ [0] = "--",
+ [LCK_EX] = "EX",
+ [LCK_PW] = "PW",
+ [LCK_PR] = "PR",
+ [LCK_CW] = "CW",
+ [LCK_CR] = "CR",
+ [LCK_NL] = "NL",
+ [LCK_GROUP] = "GROUP",
+ [LCK_COS] = "COS"
};
EXPORT_SYMBOL(ldlm_lockname);
char *ldlm_typename[] = {
- [LDLM_PLAIN] "PLN",
- [LDLM_EXTENT] "EXT",
- [LDLM_FLOCK] "FLK",
- [LDLM_IBITS] "IBT",
+ [LDLM_PLAIN] = "PLN",
+ [LDLM_EXTENT] = "EXT",
+ [LDLM_FLOCK] = "FLK",
+ [LDLM_IBITS] = "IBT",
};
EXPORT_SYMBOL(ldlm_typename);
static ldlm_policy_wire_to_local_t ldlm_policy_wire18_to_local[] = {
- [LDLM_PLAIN - LDLM_MIN_TYPE] ldlm_plain_policy_wire_to_local,
- [LDLM_EXTENT - LDLM_MIN_TYPE] ldlm_extent_policy_wire_to_local,
- [LDLM_FLOCK - LDLM_MIN_TYPE] ldlm_flock_policy_wire18_to_local,
- [LDLM_IBITS - LDLM_MIN_TYPE] ldlm_ibits_policy_wire_to_local,
+ [LDLM_PLAIN - LDLM_MIN_TYPE] = ldlm_plain_policy_wire_to_local,
+ [LDLM_EXTENT - LDLM_MIN_TYPE] = ldlm_extent_policy_wire_to_local,
+ [LDLM_FLOCK - LDLM_MIN_TYPE] = ldlm_flock_policy_wire18_to_local,
+ [LDLM_IBITS - LDLM_MIN_TYPE] = ldlm_ibits_policy_wire_to_local,
};
static ldlm_policy_wire_to_local_t ldlm_policy_wire21_to_local[] = {
- [LDLM_PLAIN - LDLM_MIN_TYPE] ldlm_plain_policy_wire_to_local,
- [LDLM_EXTENT - LDLM_MIN_TYPE] ldlm_extent_policy_wire_to_local,
- [LDLM_FLOCK - LDLM_MIN_TYPE] ldlm_flock_policy_wire21_to_local,
- [LDLM_IBITS - LDLM_MIN_TYPE] ldlm_ibits_policy_wire_to_local,
+ [LDLM_PLAIN - LDLM_MIN_TYPE] = ldlm_plain_policy_wire_to_local,
+ [LDLM_EXTENT - LDLM_MIN_TYPE] = ldlm_extent_policy_wire_to_local,
+ [LDLM_FLOCK - LDLM_MIN_TYPE] = ldlm_flock_policy_wire21_to_local,
+ [LDLM_IBITS - LDLM_MIN_TYPE] = ldlm_ibits_policy_wire_to_local,
};
static ldlm_policy_local_to_wire_t ldlm_policy_local_to_wire[] = {
- [LDLM_PLAIN - LDLM_MIN_TYPE] ldlm_plain_policy_local_to_wire,
- [LDLM_EXTENT - LDLM_MIN_TYPE] ldlm_extent_policy_local_to_wire,
- [LDLM_FLOCK - LDLM_MIN_TYPE] ldlm_flock_policy_local_to_wire,
- [LDLM_IBITS - LDLM_MIN_TYPE] ldlm_ibits_policy_local_to_wire,
+ [LDLM_PLAIN - LDLM_MIN_TYPE] = ldlm_plain_policy_local_to_wire,
+ [LDLM_EXTENT - LDLM_MIN_TYPE] = ldlm_extent_policy_local_to_wire,
+ [LDLM_FLOCK - LDLM_MIN_TYPE] = ldlm_flock_policy_local_to_wire,
+ [LDLM_IBITS - LDLM_MIN_TYPE] = ldlm_ibits_policy_local_to_wire,
};
/**
return "getxattr";
case IT_LAYOUT:
return "layout";
- case IT_SETXATTR:
- return "setxattr";
default:
CERROR("Unknown intent %d\n", it);
return "UNKNOWN";
#ifdef HAVE_SERVER_SUPPORT
static ldlm_processing_policy ldlm_processing_policy_table[] = {
- [LDLM_PLAIN] ldlm_process_plain_lock,
- [LDLM_EXTENT] ldlm_process_extent_lock,
+ [LDLM_PLAIN] = ldlm_process_plain_lock,
+ [LDLM_EXTENT] = ldlm_process_extent_lock,
# ifdef __KERNEL__
- [LDLM_FLOCK] ldlm_process_flock_lock,
+ [LDLM_FLOCK] = ldlm_process_flock_lock,
# endif
- [LDLM_IBITS] ldlm_process_inodebits_lock,
+ [LDLM_IBITS] = ldlm_process_inodebits_lock,
};
ldlm_processing_policy ldlm_get_processing_policy(struct ldlm_resource *res)
*/
struct ldlm_lock *ldlm_lock_get(struct ldlm_lock *lock)
{
- cfs_atomic_inc(&lock->l_refc);
+ atomic_inc(&lock->l_refc);
return lock;
}
EXPORT_SYMBOL(ldlm_lock_get);
ENTRY;
LASSERT(lock->l_resource != LP_POISON);
- LASSERT(cfs_atomic_read(&lock->l_refc) > 0);
- if (cfs_atomic_dec_and_test(&lock->l_refc)) {
+ LASSERT(atomic_read(&lock->l_refc) > 0);
+ if (atomic_dec_and_test(&lock->l_refc)) {
struct ldlm_resource *res;
LDLM_DEBUG(lock,
"final lock_put on destroyed lock, freeing it.");
res = lock->l_resource;
- LASSERT(lock->l_flags & LDLM_FL_DESTROYED);
+ LASSERT(ldlm_is_destroyed(lock));
LASSERT(cfs_list_empty(&lock->l_res_link));
LASSERT(cfs_list_empty(&lock->l_pending_chain));
}
if (lock->l_lvb_data != NULL)
- OBD_FREE(lock->l_lvb_data, lock->l_lvb_len);
+ OBD_FREE_LARGE(lock->l_lvb_data, lock->l_lvb_len);
ldlm_interval_free(ldlm_interval_detach(lock));
lu_ref_fini(&lock->l_reference);
*/
int ldlm_lock_remove_from_lru_nolock(struct ldlm_lock *lock)
{
- int rc = 0;
- if (!cfs_list_empty(&lock->l_lru)) {
- struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
-
- LASSERT(lock->l_resource->lr_type != LDLM_FLOCK);
- cfs_list_del_init(&lock->l_lru);
- if (lock->l_flags & LDLM_FL_SKIPPED)
- lock->l_flags &= ~LDLM_FL_SKIPPED;
- LASSERT(ns->ns_nr_unused > 0);
- ns->ns_nr_unused--;
- rc = 1;
- }
- return rc;
+ int rc = 0;
+ if (!cfs_list_empty(&lock->l_lru)) {
+ struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
+
+ LASSERT(lock->l_resource->lr_type != LDLM_FLOCK);
+ cfs_list_del_init(&lock->l_lru);
+ LASSERT(ns->ns_nr_unused > 0);
+ ns->ns_nr_unused--;
+ rc = 1;
+ }
+ return rc;
}
/**
int rc;
ENTRY;
- if (lock->l_flags & LDLM_FL_NS_SRV) {
+ if (ldlm_is_ns_srv(lock)) {
LASSERT(cfs_list_empty(&lock->l_lru));
RETURN(0);
}
*/
void ldlm_lock_add_to_lru_nolock(struct ldlm_lock *lock)
{
- struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
+ struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
- lock->l_last_used = cfs_time_current();
- LASSERT(cfs_list_empty(&lock->l_lru));
- LASSERT(lock->l_resource->lr_type != LDLM_FLOCK);
- cfs_list_add_tail(&lock->l_lru, &ns->ns_unused_list);
- LASSERT(ns->ns_nr_unused >= 0);
- ns->ns_nr_unused++;
+ lock->l_last_used = cfs_time_current();
+ LASSERT(cfs_list_empty(&lock->l_lru));
+ LASSERT(lock->l_resource->lr_type != LDLM_FLOCK);
+ cfs_list_add_tail(&lock->l_lru, &ns->ns_unused_list);
+ ldlm_clear_skipped(lock);
+ LASSERT(ns->ns_nr_unused >= 0);
+ ns->ns_nr_unused++;
}
/**
struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
ENTRY;
- if (lock->l_flags & LDLM_FL_NS_SRV) {
+ if (ldlm_is_ns_srv(lock)) {
LASSERT(cfs_list_empty(&lock->l_lru));
EXIT;
return;
LBUG();
}
- if (lock->l_flags & LDLM_FL_DESTROYED) {
+ if (ldlm_is_destroyed(lock)) {
LASSERT(cfs_list_empty(&lock->l_lru));
EXIT;
return 0;
}
- lock->l_flags |= LDLM_FL_DESTROYED;
+ ldlm_set_destroyed(lock);
if (lock->l_export && lock->l_export->exp_lock_hash) {
/* NB: it's safe to call cfs_hash_del() even lock isn't
*/
static struct ldlm_lock *ldlm_lock_new(struct ldlm_resource *resource)
{
- struct ldlm_lock *lock;
- ENTRY;
+ struct ldlm_lock *lock;
+ ENTRY;
- if (resource == NULL)
- LBUG();
+ if (resource == NULL)
+ LBUG();
- OBD_SLAB_ALLOC_PTR_GFP(lock, ldlm_lock_slab, __GFP_IO);
- if (lock == NULL)
- RETURN(NULL);
+ OBD_SLAB_ALLOC_PTR_GFP(lock, ldlm_lock_slab, GFP_NOFS);
+ if (lock == NULL)
+ RETURN(NULL);
spin_lock_init(&lock->l_lock);
- lock->l_resource = resource;
- lu_ref_add(&resource->lr_reference, "lock", lock);
-
- cfs_atomic_set(&lock->l_refc, 2);
- CFS_INIT_LIST_HEAD(&lock->l_res_link);
- CFS_INIT_LIST_HEAD(&lock->l_lru);
- CFS_INIT_LIST_HEAD(&lock->l_pending_chain);
- CFS_INIT_LIST_HEAD(&lock->l_bl_ast);
- CFS_INIT_LIST_HEAD(&lock->l_cp_ast);
- CFS_INIT_LIST_HEAD(&lock->l_rk_ast);
- cfs_waitq_init(&lock->l_waitq);
- lock->l_blocking_lock = NULL;
- CFS_INIT_LIST_HEAD(&lock->l_sl_mode);
- CFS_INIT_LIST_HEAD(&lock->l_sl_policy);
- CFS_INIT_HLIST_NODE(&lock->l_exp_hash);
+ lock->l_resource = resource;
+ lu_ref_add(&resource->lr_reference, "lock", lock);
+
+ atomic_set(&lock->l_refc, 2);
+ CFS_INIT_LIST_HEAD(&lock->l_res_link);
+ CFS_INIT_LIST_HEAD(&lock->l_lru);
+ CFS_INIT_LIST_HEAD(&lock->l_pending_chain);
+ CFS_INIT_LIST_HEAD(&lock->l_bl_ast);
+ CFS_INIT_LIST_HEAD(&lock->l_cp_ast);
+ CFS_INIT_LIST_HEAD(&lock->l_rk_ast);
+ init_waitqueue_head(&lock->l_waitq);
+ lock->l_blocking_lock = NULL;
+ CFS_INIT_LIST_HEAD(&lock->l_sl_mode);
+ CFS_INIT_LIST_HEAD(&lock->l_sl_policy);
+ CFS_INIT_HLIST_NODE(&lock->l_exp_hash);
CFS_INIT_HLIST_NODE(&lock->l_exp_flock_hash);
lprocfs_counter_incr(ldlm_res_to_ns(resource)->ns_stats,
type = oldres->lr_type;
unlock_res_and_lock(lock);
- newres = ldlm_resource_get(ns, NULL, new_resid, type, 1);
- if (newres == NULL)
- RETURN(-ENOMEM);
+ newres = ldlm_resource_get(ns, NULL, new_resid, type, 1);
+ if (IS_ERR(newres))
+ RETURN(PTR_ERR(newres));
lu_ref_add(&newres->lr_reference, "lock", lock);
/*
struct ldlm_lock *__ldlm_handle2lock(const struct lustre_handle *handle,
__u64 flags)
{
- struct ldlm_lock *lock;
- ENTRY;
+ struct ldlm_lock *lock;
+ ENTRY;
- LASSERT(handle);
+ LASSERT(handle);
lock = class_handle2object(handle->cookie, NULL);
- if (lock == NULL)
- RETURN(NULL);
-
- /* It's unlikely but possible that someone marked the lock as
- * destroyed after we did handle2object on it */
- if (flags == 0 && ((lock->l_flags & LDLM_FL_DESTROYED)== 0)) {
- lu_ref_add(&lock->l_reference, "handle", cfs_current());
- RETURN(lock);
- }
+ if (lock == NULL)
+ RETURN(NULL);
+
+ /* It's unlikely but possible that someone marked the lock as
+ * destroyed after we did handle2object on it */
+ if ((flags == 0) && !ldlm_is_destroyed(lock)) {
+ lu_ref_add(&lock->l_reference, "handle", current);
+ RETURN(lock);
+ }
- lock_res_and_lock(lock);
+ lock_res_and_lock(lock);
- LASSERT(lock->l_resource != NULL);
+ LASSERT(lock->l_resource != NULL);
- lu_ref_add_atomic(&lock->l_reference, "handle", cfs_current());
- if (unlikely(lock->l_flags & LDLM_FL_DESTROYED)) {
- unlock_res_and_lock(lock);
- CDEBUG(D_INFO, "lock already destroyed: lock %p\n", lock);
- LDLM_LOCK_PUT(lock);
- RETURN(NULL);
- }
+ lu_ref_add_atomic(&lock->l_reference, "handle", current);
+ if (unlikely(ldlm_is_destroyed(lock))) {
+ unlock_res_and_lock(lock);
+ CDEBUG(D_INFO, "lock already destroyed: lock %p\n", lock);
+ LDLM_LOCK_PUT(lock);
+ RETURN(NULL);
+ }
- if (flags && (lock->l_flags & flags)) {
- unlock_res_and_lock(lock);
- LDLM_LOCK_PUT(lock);
- RETURN(NULL);
- }
+ /* If we're setting flags, make sure none of them are already set. */
+ if (flags != 0) {
+ if ((lock->l_flags & flags) != 0) {
+ unlock_res_and_lock(lock);
+ LDLM_LOCK_PUT(lock);
+ RETURN(NULL);
+ }
- if (flags)
- lock->l_flags |= flags;
+ lock->l_flags |= flags;
+ }
- unlock_res_and_lock(lock);
- RETURN(lock);
+ unlock_res_and_lock(lock);
+ RETURN(lock);
}
EXPORT_SYMBOL(__ldlm_handle2lock);
/** @} ldlm_handles */
void ldlm_add_bl_work_item(struct ldlm_lock *lock, struct ldlm_lock *new,
cfs_list_t *work_list)
{
- if ((lock->l_flags & LDLM_FL_AST_SENT) == 0) {
- LDLM_DEBUG(lock, "lock incompatible; sending blocking AST.");
- lock->l_flags |= LDLM_FL_AST_SENT;
- /* If the enqueuing client said so, tell the AST recipient to
- * discard dirty data, rather than writing back. */
- if (new->l_flags & LDLM_FL_AST_DISCARD_DATA)
- lock->l_flags |= LDLM_FL_DISCARD_DATA;
+ if (!ldlm_is_ast_sent(lock)) {
+ LDLM_DEBUG(lock, "lock incompatible; sending blocking AST.");
+ ldlm_set_ast_sent(lock);
+ /* If the enqueuing client said so, tell the AST recipient to
+ * discard dirty data, rather than writing back. */
+ if (ldlm_is_ast_discard_data(new))
+ ldlm_set_discard_data(lock);
LASSERT(cfs_list_empty(&lock->l_bl_ast));
cfs_list_add(&lock->l_bl_ast, work_list);
LDLM_LOCK_GET(lock);
*/
void ldlm_add_cp_work_item(struct ldlm_lock *lock, cfs_list_t *work_list)
{
- if ((lock->l_flags & LDLM_FL_CP_REQD) == 0) {
- lock->l_flags |= LDLM_FL_CP_REQD;
+ if (!ldlm_is_cp_reqd(lock)) {
+ ldlm_set_cp_reqd(lock);
LDLM_DEBUG(lock, "lock granted; sending completion AST.");
LASSERT(cfs_list_empty(&lock->l_cp_ast));
cfs_list_add(&lock->l_cp_ast, work_list);
if (lock != NULL) {
lock_res_and_lock(lock);
if (lock->l_readers != 0 || lock->l_writers != 0 ||
- !(lock->l_flags & LDLM_FL_CBPENDING)) {
+ !ldlm_is_cbpending(lock)) {
ldlm_lock_addref_internal_nolock(lock, mode);
result = 0;
}
ldlm_lock_decref_internal_nolock(lock, mode);
- if (lock->l_flags & LDLM_FL_LOCAL &&
+ if (ldlm_is_local(lock) &&
!lock->l_readers && !lock->l_writers) {
/* If this is a local lock on a server namespace and this was
* the last reference, cancel the lock. */
CDEBUG(D_INFO, "forcing cancel of local lock\n");
- lock->l_flags |= LDLM_FL_CBPENDING;
+ ldlm_set_cbpending(lock);
}
if (!lock->l_readers && !lock->l_writers &&
- (lock->l_flags & LDLM_FL_CBPENDING)) {
+ ldlm_is_cbpending(lock)) {
/* If we received a blocked AST and this was the last reference,
* run the callback. */
- if ((lock->l_flags & LDLM_FL_NS_SRV) && lock->l_export)
+ if (ldlm_is_ns_srv(lock) && lock->l_export)
CERROR("FL_CBPENDING set on non-local lock--just a "
"warning\n");
ldlm_lock_remove_from_lru(lock);
unlock_res_and_lock(lock);
- if (lock->l_flags & LDLM_FL_FAIL_LOC)
+ if (ldlm_is_fail_loc(lock))
OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE);
- if ((lock->l_flags & LDLM_FL_ATOMIC_CB) ||
+ if (ldlm_is_atomic_cb(lock) ||
ldlm_bl_to_thread_lock(ns, NULL, lock) != 0)
ldlm_handle_bl_callback(ns, NULL, lock);
} else if (ns_is_client(ns) &&
!lock->l_readers && !lock->l_writers &&
- !(lock->l_flags & LDLM_FL_NO_LRU) &&
- !(lock->l_flags & LDLM_FL_BL_AST)) {
+ !ldlm_is_no_lru(lock) &&
+ !ldlm_is_bl_ast(lock)) {
LDLM_DEBUG(lock, "add lock into lru list");
ldlm_lock_add_to_lru(lock);
unlock_res_and_lock(lock);
- if (lock->l_flags & LDLM_FL_FAIL_LOC)
+ if (ldlm_is_fail_loc(lock))
OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE);
/* Call ldlm_cancel_lru() only if EARLY_CANCEL and LRU RESIZE
LDLM_DEBUG(lock, "ldlm_lock_decref(%s)", ldlm_lockname[mode]);
lock_res_and_lock(lock);
- lock->l_flags |= LDLM_FL_CBPENDING;
+ ldlm_set_cbpending(lock);
unlock_res_and_lock(lock);
ldlm_lock_decref_internal(lock, mode);
LDLM_LOCK_PUT(lock);
ldlm_resource_dump(D_INFO, res);
LDLM_DEBUG(lock, "About to add lock:");
- if (lock->l_flags & LDLM_FL_DESTROYED) {
+ if (ldlm_is_destroyed(lock)) {
CDEBUG(D_OTHER, "Lock destroyed, not adding to resource\n");
return;
}
check_res_locked(res);
lock->l_granted_mode = lock->l_req_mode;
+
+ if (work_list && lock->l_completion_ast != NULL)
+ ldlm_add_ast_work_item(lock, NULL, work_list);
+
+ /* We should not add locks to granted list in the following cases:
+ * - this is an UNLOCK but not a real lock;
+ * - this is a TEST lock;
+ * - this is a F_CANCELLK lock (async flock has req_mode == 0)
+ * - this is a deadlock (flock cannot be granted) */
+ if (lock->l_req_mode == 0 ||
+ lock->l_req_mode == LCK_NL ||
+ ldlm_is_test_lock(lock) ||
+ ldlm_is_flock_deadlock(lock))
+ RETURN_EXIT;
+
if (res->lr_type == LDLM_PLAIN || res->lr_type == LDLM_IBITS)
ldlm_grant_lock_with_skiplist(lock);
else if (res->lr_type == LDLM_EXTENT)
if (lock->l_granted_mode < res->lr_most_restr)
res->lr_most_restr = lock->l_granted_mode;
- if (work_list && lock->l_completion_ast != NULL)
- ldlm_add_ast_work_item(lock, NULL, work_list);
-
ldlm_pool_add(&ldlm_res_to_ns(res)->ns_pool, lock);
EXIT;
}
* this is generally only going to be used by children
* whose parents already hold a lock so forward progress
* can still happen. */
- if (lock->l_flags & LDLM_FL_CBPENDING &&
+ if (ldlm_is_cbpending(lock) &&
!(flags & LDLM_FL_CBPENDING))
continue;
- if (!unref && lock->l_flags & LDLM_FL_CBPENDING &&
+ if (!unref && ldlm_is_cbpending(lock) &&
lock->l_readers == 0 && lock->l_writers == 0)
continue;
policy->l_inodebits.bits))
continue;
- if (!unref && (lock->l_flags & LDLM_FL_GONE_MASK))
+ if (!unref && LDLM_HAVE_MASK(lock, GONE))
continue;
if ((flags & LDLM_FL_LOCAL_ONLY) &&
- !(lock->l_flags & LDLM_FL_LOCAL))
+ !ldlm_is_local(lock))
continue;
if (flags & LDLM_FL_TEST_LOCK) {
{
if ((lock->l_flags & LDLM_FL_FAIL_NOTIFIED) == 0) {
lock->l_flags |= LDLM_FL_FAIL_NOTIFIED;
- cfs_waitq_broadcast(&lock->l_waitq);
+ wake_up_all(&lock->l_waitq);
}
}
EXPORT_SYMBOL(ldlm_lock_fail_match_locked);
*/
void ldlm_lock_allow_match_locked(struct ldlm_lock *lock)
{
- lock->l_flags |= LDLM_FL_LVB_READY;
- cfs_waitq_broadcast(&lock->l_waitq);
+ ldlm_set_lvb_ready(lock);
+ wake_up_all(&lock->l_waitq);
}
EXPORT_SYMBOL(ldlm_lock_allow_match_locked);
mode = old_lock->l_req_mode;
}
- res = ldlm_resource_get(ns, NULL, res_id, type, 0);
- if (res == NULL) {
- LASSERT(old_lock == NULL);
- RETURN(0);
- }
+ res = ldlm_resource_get(ns, NULL, res_id, type, 0);
+ if (IS_ERR(res)) {
+ LASSERT(old_lock == NULL);
+ RETURN(0);
+ }
LDLM_RESOURCE_ADDREF(res);
lock_res(res);
if (lock) {
ldlm_lock2handle(lock, lockh);
if ((flags & LDLM_FL_LVB_READY) &&
- (!(lock->l_flags & LDLM_FL_LVB_READY))) {
+ (!ldlm_is_lvb_ready(lock))) {
__u64 wait_flags = LDLM_FL_LVB_READY |
LDLM_FL_DESTROYED | LDLM_FL_FAIL_NOTIFIED;
struct l_wait_info lwi;
l_wait_event(lock->l_waitq,
lock->l_flags & wait_flags,
&lwi);
- if (!(lock->l_flags & LDLM_FL_LVB_READY)) {
+ if (!ldlm_is_lvb_ready(lock)) {
if (flags & LDLM_FL_TEST_LOCK)
LDLM_LOCK_RELEASE(lock);
else
lock = ldlm_handle2lock(lockh);
if (lock != NULL) {
lock_res_and_lock(lock);
- if (lock->l_flags & LDLM_FL_GONE_MASK)
+ if (LDLM_HAVE_MASK(lock, GONE))
GOTO(out, mode);
- if (lock->l_flags & LDLM_FL_CBPENDING &&
+ if (ldlm_is_cbpending(lock) &&
lock->l_readers == 0 && lock->l_writers == 0)
GOTO(out, mode);
* Returns a referenced lock
*/
struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
- const struct ldlm_res_id *res_id,
- ldlm_type_t type,
- ldlm_mode_t mode,
- const struct ldlm_callback_suite *cbs,
+ const struct ldlm_res_id *res_id,
+ ldlm_type_t type,
+ ldlm_mode_t mode,
+ const struct ldlm_callback_suite *cbs,
void *data, __u32 lvb_len,
enum lvb_type lvb_type)
{
- struct ldlm_lock *lock;
- struct ldlm_resource *res;
- ENTRY;
-
- res = ldlm_resource_get(ns, NULL, res_id, type, 1);
- if (res == NULL)
- RETURN(NULL);
+ struct ldlm_lock *lock;
+ struct ldlm_resource *res;
+ int rc;
+ ENTRY;
- lock = ldlm_lock_new(res);
+ res = ldlm_resource_get(ns, NULL, res_id, type, 1);
+ if (IS_ERR(res))
+ RETURN(ERR_CAST(res));
- if (lock == NULL)
- RETURN(NULL);
+ lock = ldlm_lock_new(res);
+ if (lock == NULL)
+ RETURN(ERR_PTR(-ENOMEM));
- lock->l_req_mode = mode;
- lock->l_ast_data = data;
- lock->l_pid = cfs_curproc_pid();
+ lock->l_req_mode = mode;
+ lock->l_ast_data = data;
+ lock->l_pid = current_pid();
if (ns_is_server(ns))
- lock->l_flags |= LDLM_FL_NS_SRV;
- if (cbs) {
- lock->l_blocking_ast = cbs->lcs_blocking;
- lock->l_completion_ast = cbs->lcs_completion;
- lock->l_glimpse_ast = cbs->lcs_glimpse;
- }
-
- lock->l_tree_node = NULL;
- /* if this is the extent lock, allocate the interval tree node */
- if (type == LDLM_EXTENT) {
- if (ldlm_interval_alloc(lock) == NULL)
- GOTO(out, 0);
- }
+ ldlm_set_ns_srv(lock);
+ if (cbs) {
+ lock->l_blocking_ast = cbs->lcs_blocking;
+ lock->l_completion_ast = cbs->lcs_completion;
+ lock->l_glimpse_ast = cbs->lcs_glimpse;
+ }
- if (lvb_len) {
- lock->l_lvb_len = lvb_len;
- OBD_ALLOC(lock->l_lvb_data, lvb_len);
- if (lock->l_lvb_data == NULL)
- GOTO(out, 0);
- }
+ lock->l_tree_node = NULL;
+ /* if this is the extent lock, allocate the interval tree node */
+ if (type == LDLM_EXTENT)
+ if (ldlm_interval_alloc(lock) == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ if (lvb_len) {
+ lock->l_lvb_len = lvb_len;
+ OBD_ALLOC_LARGE(lock->l_lvb_data, lvb_len);
+ if (lock->l_lvb_data == NULL)
+ GOTO(out, rc = -ENOMEM);
+ }
lock->l_lvb_type = lvb_type;
- if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_NEW_LOCK))
- GOTO(out, 0);
+ if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_NEW_LOCK))
+ GOTO(out, rc = -ENOENT);
- RETURN(lock);
+ RETURN(lock);
out:
- ldlm_lock_destroy(lock);
- LDLM_LOCK_RELEASE(lock);
- return NULL;
+ ldlm_lock_destroy(lock);
+ LDLM_LOCK_RELEASE(lock);
+ RETURN(ERR_PTR(rc));
}
/**
}
}
- /* For a replaying lock, it might be already in granted list. So
- * unlinking the lock will cause the interval node to be freed, we
- * have to allocate the interval node early otherwise we can't regrant
- * this lock in the future. - jay */
- if (!local && (*flags & LDLM_FL_REPLAY) && res->lr_type == LDLM_EXTENT)
- OBD_SLAB_ALLOC_PTR_GFP(node, ldlm_interval_slab, __GFP_IO);
+ /* For a replaying lock, it might be already in granted list. So
+ * unlinking the lock will cause the interval node to be freed, we
+ * have to allocate the interval node early otherwise we can't regrant
+ * this lock in the future. - jay */
+ if (!local && (*flags & LDLM_FL_REPLAY) && res->lr_type == LDLM_EXTENT)
+ OBD_SLAB_ALLOC_PTR_GFP(node, ldlm_interval_slab, GFP_NOFS);
lock_res_and_lock(lock);
if (local && lock->l_req_mode == lock->l_granted_mode) {
* need to do anything else. */
*flags &= ~(LDLM_FL_BLOCK_GRANTED |
LDLM_FL_BLOCK_CONV | LDLM_FL_BLOCK_WAIT);
- GOTO(out, ELDLM_OK);
+ GOTO(out, rc = ELDLM_OK);
}
ldlm_resource_unlink_lock(lock);
/* Some flags from the enqueue want to make it into the AST, via the
* lock's l_flags. */
- lock->l_flags |= *flags & LDLM_FL_AST_DISCARD_DATA;
+ if (*flags & LDLM_FL_AST_DISCARD_DATA)
+ ldlm_set_ast_discard_data(lock);
+ if (*flags & LDLM_FL_TEST_LOCK)
+ ldlm_set_test_lock(lock);
/* This distinction between local lock trees is very important; a client
* namespace only has information about locks taken by that client, and
ldlm_resource_add_lock(res, &res->lr_waiting, lock);
else
ldlm_grant_lock(lock, NULL);
- GOTO(out, ELDLM_OK);
+ GOTO(out, rc = ELDLM_OK);
#ifdef HAVE_SERVER_SUPPORT
+ } else if (*flags & LDLM_FL_RESENT) {
+ GOTO(out, rc = ELDLM_OK);
} else if (*flags & LDLM_FL_REPLAY) {
if (*flags & LDLM_FL_BLOCK_CONV) {
ldlm_resource_add_lock(res, &res->lr_converting, lock);
- GOTO(out, ELDLM_OK);
+ GOTO(out, rc = ELDLM_OK);
} else if (*flags & LDLM_FL_BLOCK_WAIT) {
ldlm_resource_add_lock(res, &res->lr_waiting, lock);
- GOTO(out, ELDLM_OK);
+ GOTO(out, rc = ELDLM_OK);
} else if (*flags & LDLM_FL_BLOCK_GRANTED) {
ldlm_grant_lock(lock, NULL);
- GOTO(out, ELDLM_OK);
+ GOTO(out, rc = ELDLM_OK);
}
/* If no flags, fall through to normal enqueue path. */
}
lock_res_and_lock(lock);
cfs_list_del_init(&lock->l_bl_ast);
- LASSERT(lock->l_flags & LDLM_FL_AST_SENT);
+ LASSERT(ldlm_is_ast_sent(lock));
LASSERT(lock->l_bl_ast_run == 0);
LASSERT(lock->l_blocking_lock);
lock->l_bl_ast_run++;
/* nobody should touch l_cp_ast */
lock_res_and_lock(lock);
cfs_list_del_init(&lock->l_cp_ast);
- LASSERT(lock->l_flags & LDLM_FL_CP_REQD);
+ LASSERT(ldlm_is_cp_reqd(lock));
/* save l_completion_ast since it can be changed by
* mds_intent_policy(), see bug 14225 */
completion_callback = lock->l_completion_ast;
- lock->l_flags &= ~LDLM_FL_CP_REQD;
+ ldlm_clear_cp_reqd(lock);
unlock_res_and_lock(lock);
if (completion_callback != NULL)
if (arg == NULL)
RETURN(-ENOMEM);
- cfs_atomic_set(&arg->restart, 0);
+ atomic_set(&arg->restart, 0);
arg->list = rpc_list;
switch (ast_type) {
ptlrpc_set_wait(arg->set);
ptlrpc_set_destroy(arg->set);
- rc = cfs_atomic_read(&arg->restart) ? -ERESTART : 0;
+ rc = atomic_read(&arg->restart) ? -ERESTART : 0;
GOTO(out, rc);
out:
OBD_FREE_PTR(arg);
#endif
EXIT;
}
+EXPORT_SYMBOL(ldlm_reprocess_all);
/**
* Helper function to call blocking AST for LDLM lock \a lock in a
void ldlm_cancel_callback(struct ldlm_lock *lock)
{
check_res_locked(lock->l_resource);
- if (!(lock->l_flags & LDLM_FL_CANCEL)) {
- lock->l_flags |= LDLM_FL_CANCEL;
+ if (!ldlm_is_cancel(lock)) {
+ ldlm_set_cancel(lock);
if (lock->l_blocking_ast) {
unlock_res_and_lock(lock);
lock->l_blocking_ast(lock, NULL, lock->l_ast_data,
LDLM_DEBUG(lock, "no blocking ast");
}
}
- lock->l_flags |= LDLM_FL_BL_DONE;
+ ldlm_set_bl_done(lock);
}
/**
LBUG();
}
- if (lock->l_flags & LDLM_FL_WAITED)
+ if (ldlm_is_waited(lock))
ldlm_del_waiting_lock(lock);
/* Releases cancel callback. */
/* Yes, second time, just in case it was added again while we were
* running with no res lock in ldlm_cancel_callback */
- if (lock->l_flags & LDLM_FL_WAITED)
+ if (ldlm_is_waited(lock))
ldlm_del_waiting_lock(lock);
ldlm_resource_unlink_lock(lock);
"Cancel lock %p for export %p (loop %d), still have "
"%d locks left on hash table.\n",
lock, exp, ecl->ecl_loop,
- cfs_atomic_read(&hs->hs_count));
+ atomic_read(&hs->hs_count));
}
return 0;
* pages on a file.
*/
struct ldlm_resource *ldlm_lock_convert(struct ldlm_lock *lock, int new_mode,
- __u32 *flags)
+ __u32 *flags)
{
- CFS_LIST_HEAD(rpc_list);
- struct ldlm_resource *res;
- struct ldlm_namespace *ns;
- int granted = 0;
+ CFS_LIST_HEAD(rpc_list);
+ struct ldlm_resource *res;
+ struct ldlm_namespace *ns;
+ int granted = 0;
#ifdef HAVE_SERVER_SUPPORT
int old_mode;
struct sl_insert_point prev;
#endif
- struct ldlm_interval *node;
- ENTRY;
+ struct ldlm_interval *node;
+ ENTRY;
/* Just return if mode is unchanged. */
if (new_mode == lock->l_granted_mode) {
- *flags |= LDLM_FL_BLOCK_GRANTED;
- RETURN(lock->l_resource);
- }
+ *flags |= LDLM_FL_BLOCK_GRANTED;
+ RETURN(lock->l_resource);
+ }
- /* I can't check the type of lock here because the bitlock of lock
- * is not held here, so do the allocation blindly. -jay */
- OBD_SLAB_ALLOC_PTR_GFP(node, ldlm_interval_slab, __GFP_IO);
+ /* I can't check the type of lock here because the bitlock of lock
+ * is not held here, so do the allocation blindly. -jay */
+ OBD_SLAB_ALLOC_PTR_GFP(node, ldlm_interval_slab, GFP_NOFS);
if (node == NULL) /* Actually, this causes EDEADLOCK to be returned */
- RETURN(NULL);
+ RETURN(NULL);
- LASSERTF((new_mode == LCK_PW && lock->l_granted_mode == LCK_PR),
- "new_mode %u, granted %u\n", new_mode, lock->l_granted_mode);
+ LASSERTF((new_mode == LCK_PW && lock->l_granted_mode == LCK_PR),
+ "new_mode %u, granted %u\n", new_mode, lock->l_granted_mode);
- lock_res_and_lock(lock);
+ lock_res_and_lock(lock);
- res = lock->l_resource;
- ns = ldlm_res_to_ns(res);
+ res = lock->l_resource;
+ ns = ldlm_res_to_ns(res);
#ifdef HAVE_SERVER_SUPPORT
old_mode = lock->l_req_mode;
"remote: "LPX64" expref: %d pid: %u timeout: %lu "
"lvb_type: %d\n",
lock,
- lock->l_handle.h_cookie, cfs_atomic_read(&lock->l_refc),
+ lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
lock->l_readers, lock->l_writers,
ldlm_lockname[lock->l_granted_mode],
ldlm_lockname[lock->l_req_mode],
lock->l_flags, nid, lock->l_remote_handle.cookie,
- exp ? cfs_atomic_read(&exp->exp_refcount) : -99,
+ exp ? atomic_read(&exp->exp_refcount) : -99,
lock->l_pid, lock->l_callback_timeout, lock->l_lvb_type);
va_end(args);
return;
"(req "LPU64"->"LPU64") flags: "LPX64" nid: %s remote: "
LPX64" expref: %d pid: %u timeout: %lu lvb_type: %d\n",
ldlm_lock_to_ns_name(lock), lock,
- lock->l_handle.h_cookie, cfs_atomic_read(&lock->l_refc),
+ lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
lock->l_readers, lock->l_writers,
ldlm_lockname[lock->l_granted_mode],
ldlm_lockname[lock->l_req_mode],
PLDLMRES(resource),
- cfs_atomic_read(&resource->lr_refcount),
+ atomic_read(&resource->lr_refcount),
ldlm_typename[resource->lr_type],
lock->l_policy_data.l_extent.start,
lock->l_policy_data.l_extent.end,
lock->l_req_extent.start, lock->l_req_extent.end,
lock->l_flags, nid, lock->l_remote_handle.cookie,
- exp ? cfs_atomic_read(&exp->exp_refcount) : -99,
+ exp ? atomic_read(&exp->exp_refcount) : -99,
lock->l_pid, lock->l_callback_timeout,
lock->l_lvb_type);
break;
"["LPU64"->"LPU64"] flags: "LPX64" nid: %s "
"remote: "LPX64" expref: %d pid: %u timeout: %lu\n",
ldlm_lock_to_ns_name(lock), lock,
- lock->l_handle.h_cookie, cfs_atomic_read(&lock->l_refc),
+ lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
lock->l_readers, lock->l_writers,
ldlm_lockname[lock->l_granted_mode],
ldlm_lockname[lock->l_req_mode],
PLDLMRES(resource),
- cfs_atomic_read(&resource->lr_refcount),
+ atomic_read(&resource->lr_refcount),
ldlm_typename[resource->lr_type],
lock->l_policy_data.l_flock.pid,
lock->l_policy_data.l_flock.start,
lock->l_policy_data.l_flock.end,
lock->l_flags, nid, lock->l_remote_handle.cookie,
- exp ? cfs_atomic_read(&exp->exp_refcount) : -99,
+ exp ? atomic_read(&exp->exp_refcount) : -99,
lock->l_pid, lock->l_callback_timeout);
break;
"pid: %u timeout: %lu lvb_type: %d\n",
ldlm_lock_to_ns_name(lock),
lock, lock->l_handle.h_cookie,
- cfs_atomic_read(&lock->l_refc),
+ atomic_read(&lock->l_refc),
lock->l_readers, lock->l_writers,
ldlm_lockname[lock->l_granted_mode],
ldlm_lockname[lock->l_req_mode],
PLDLMRES(resource),
lock->l_policy_data.l_inodebits.bits,
- cfs_atomic_read(&resource->lr_refcount),
+ atomic_read(&resource->lr_refcount),
ldlm_typename[resource->lr_type],
lock->l_flags, nid, lock->l_remote_handle.cookie,
- exp ? cfs_atomic_read(&exp->exp_refcount) : -99,
+ exp ? atomic_read(&exp->exp_refcount) : -99,
lock->l_pid, lock->l_callback_timeout,
lock->l_lvb_type);
break;
"timeout: %lu lvb_type: %d\n",
ldlm_lock_to_ns_name(lock),
lock, lock->l_handle.h_cookie,
- cfs_atomic_read(&lock->l_refc),
+ atomic_read(&lock->l_refc),
lock->l_readers, lock->l_writers,
ldlm_lockname[lock->l_granted_mode],
ldlm_lockname[lock->l_req_mode],
PLDLMRES(resource),
- cfs_atomic_read(&resource->lr_refcount),
+ atomic_read(&resource->lr_refcount),
ldlm_typename[resource->lr_type],
lock->l_flags, nid, lock->l_remote_handle.cookie,
- exp ? cfs_atomic_read(&exp->exp_refcount) : -99,
+ exp ? atomic_read(&exp->exp_refcount) : -99,
lock->l_pid, lock->l_callback_timeout,
lock->l_lvb_type);
break;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff