CFS_DURATION_T"s", delay);
/* Update our time estimate */
- at_add(&lock->l_resource->lr_namespace->ns_at_estimate, delay);
+ at_measured(&lock->l_resource->lr_namespace->ns_at_estimate,
+ delay);
result = 0;
}
return result;
}
if (imp != NULL) {
- spin_lock(&imp->imp_lock);
+ cfs_spin_lock(&imp->imp_lock);
lwd.lwd_conn_cnt = imp->imp_conn_cnt;
- spin_unlock(&imp->imp_lock);
+ cfs_spin_unlock(&imp->imp_lock);
}
if (ns_is_client(lock->l_resource->lr_namespace) &&
}
static void failed_lock_cleanup(struct ldlm_namespace *ns,
- struct ldlm_lock *lock,
- struct lustre_handle *lockh, int mode)
+ struct ldlm_lock *lock, int mode)
{
int need_cancel = 0;
* bl_ast and -EINVAL reply is sent to server anyways.
* bug 17645 */
lock->l_flags |= LDLM_FL_LOCAL_ONLY | LDLM_FL_FAILED |
- LDLM_FL_ATOMIC_CB;
+ LDLM_FL_ATOMIC_CB | LDLM_FL_CBPENDING;
need_cancel = 1;
}
unlock_res_and_lock(lock);
- if (need_cancel) {
+ if (need_cancel)
LDLM_DEBUG(lock,
"setting FL_LOCAL_ONLY | LDLM_FL_FAILED | "
- "LDLM_FL_ATOMIC_CB");
- ldlm_lock_decref_and_cancel(lockh, mode);
- } else {
+ "LDLM_FL_ATOMIC_CB | LDLM_FL_CBPENDING");
+ else
LDLM_DEBUG(lock, "lock was granted or failed in race");
- ldlm_lock_decref(lockh, mode);
- }
+
+ ldlm_lock_decref_internal(lock, mode);
/* XXX - HACK because we shouldn't call ldlm_lock_destroy()
* from llite/file.c/ll_file_flock(). */
+ /* This code makes for the fact that we do not have blocking handler on
+ * a client for flock locks. As such this is the place where we must
+ * completely kill failed locks. (interrupted and those that
+ * were waiting to be granted when server evicted us. */
if (lock->l_resource->lr_type == LDLM_FLOCK) {
- ldlm_lock_destroy(lock);
+ lock_res_and_lock(lock);
+ ldlm_resource_unlink_lock(lock);
+ ldlm_lock_destroy_nolock(lock);
+ unlock_res_and_lock(lock);
}
}
int err = lock->l_completion_ast(lock, *flags, NULL);
if (!rc)
rc = err;
- if (rc && type != LDLM_FLOCK) /* bug 9425, bug 10250 */
+ if (rc)
cleanup_phase = 1;
}
}
EXIT;
cleanup:
if (cleanup_phase == 1 && rc)
- failed_lock_cleanup(ns, lock, lockh, mode);
+ failed_lock_cleanup(ns, lock, mode);
/* Put lock 2 times, the second reference is held by ldlm_cli_enqueue */
LDLM_LOCK_PUT(lock);
LDLM_LOCK_RELEASE(lock);
* @count locks in @cancels. */
int ldlm_prep_elc_req(struct obd_export *exp, struct ptlrpc_request *req,
int version, int opc, int canceloff,
- struct list_head *cancels, int count)
+ cfs_list_t *cancels, int count)
{
struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
struct req_capsule *pill = &req->rq_pill;
}
int ldlm_prep_enqueue_req(struct obd_export *exp, struct ptlrpc_request *req,
- struct list_head *cancels, int count)
+ cfs_list_t *cancels, int count)
{
return ldlm_prep_elc_req(exp, req, LUSTRE_DLM_VERSION, LDLM_ENQUEUE,
LDLM_ENQUEUE_CANCEL_OFF, cancels, count);
int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
struct ldlm_enqueue_info *einfo,
const struct ldlm_res_id *res_id,
- ldlm_policy_data_t *policy, int *flags,
+ ldlm_policy_data_t const *policy, int *flags,
void *lvb, __u32 lvb_len, struct lustre_handle *lockh,
int async)
{
LUSTRE_DLM_VERSION,
LDLM_ENQUEUE);
if (req == NULL) {
- failed_lock_cleanup(ns, lock, lockh, einfo->ei_mode);
+ failed_lock_cleanup(ns, lock, einfo->ei_mode);
LDLM_LOCK_RELEASE(lock);
RETURN(-ENOMEM);
}
/* Pack @count locks in @head into ldlm_request buffer at the offset @off,
of the request @req. */
static void ldlm_cancel_pack(struct ptlrpc_request *req,
- struct list_head *head, int count)
+ cfs_list_t *head, int count)
{
struct ldlm_request *dlm;
struct ldlm_lock *lock;
/* XXX: it would be better to pack lock handles grouped by resource.
* so that the server cancel would call filter_lvbo_update() less
* frequently. */
- list_for_each_entry(lock, head, l_bl_ast) {
+ cfs_list_for_each_entry(lock, head, l_bl_ast) {
if (!count--)
break;
LASSERT(lock->l_conn_export);
/* Prepare and send a batched cancel rpc, it will include count lock handles
* of locks given in @head. */
-int ldlm_cli_cancel_req(struct obd_export *exp, struct list_head *cancels,
+int ldlm_cli_cancel_req(struct obd_export *exp, cfs_list_t *cancels,
int count, int flags)
{
struct ptlrpc_request *req = NULL;
* alive in cleanup time. Evil races are possible which may cause
* oops in that time.
*/
- write_lock(&obd->obd_pool_lock);
+ cfs_write_lock(&obd->obd_pool_lock);
old_slv = obd->obd_pool_slv;
obd->obd_pool_slv = new_slv;
obd->obd_pool_limit = new_limit;
- write_unlock(&obd->obd_pool_lock);
+ cfs_write_unlock(&obd->obd_pool_lock);
RETURN(0);
}
/* Even if the lock is marked as LDLM_FL_BL_AST, this is a LDLM_CANCEL
* rpc which goes to canceld portal, so we can cancel other lru locks
* here and send them all as one LDLM_CANCEL rpc. */
- LASSERT(list_empty(&lock->l_bl_ast));
- list_add(&lock->l_bl_ast, &cancels);
+ LASSERT(cfs_list_empty(&lock->l_bl_ast));
+ cfs_list_add(&lock->l_bl_ast, &cancels);
exp = lock->l_conn_export;
if (exp_connect_cancelset(exp)) {
/* XXX until we will have compound requests and can cut cancels from generic rpc
* we need send cancels with LDLM_FL_BL_AST flag as separate rpc */
-static int ldlm_cancel_list(struct list_head *cancels, int count, int flags)
+static int ldlm_cancel_list(cfs_list_t *cancels, int count, int flags)
{
CFS_LIST_HEAD(head);
struct ldlm_lock *lock, *next;
int left = 0, bl_ast = 0, rc;
left = count;
- list_for_each_entry_safe(lock, next, cancels, l_bl_ast) {
+ cfs_list_for_each_entry_safe(lock, next, cancels, l_bl_ast) {
if (left-- == 0)
break;
}
if (!(flags & LDLM_FL_BL_AST) && (rc == LDLM_FL_BL_AST)) {
LDLM_DEBUG(lock, "Cancel lock separately");
- list_del_init(&lock->l_bl_ast);
- list_add(&lock->l_bl_ast, &head);
+ cfs_list_del_init(&lock->l_bl_ast);
+ cfs_list_add(&lock->l_bl_ast, &head);
bl_ast ++;
continue;
}
if (rc == LDLM_FL_LOCAL_ONLY) {
/* CANCEL RPC should not be sent to server. */
- list_del_init(&lock->l_bl_ast);
+ cfs_list_del_init(&lock->l_bl_ast);
LDLM_LOCK_RELEASE(lock);
count--;
}
* Inform pool about current CLV to see it via proc.
*/
ldlm_pool_set_clv(pl, lv);
- return (slv == 1 || lv < slv) ?
+ return (slv == 0 || lv < slv) ?
LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK;
}
*
* flags & LDLM_CANCEL_AGED - cancel alocks according to "aged policy".
*/
-int ldlm_cancel_lru_local(struct ldlm_namespace *ns, struct list_head *cancels,
+int ldlm_cancel_lru_local(struct ldlm_namespace *ns, cfs_list_t *cancels,
int count, int max, int cancel_flags, int flags)
{
ldlm_cancel_lru_policy_t pf;
int added = 0, unused;
ENTRY;
- spin_lock(&ns->ns_unused_lock);
+ cfs_spin_lock(&ns->ns_unused_lock);
unused = ns->ns_nr_unused;
if (!ns_connect_lru_resize(ns))
pf = ldlm_cancel_lru_policy(ns, flags);
LASSERT(pf != NULL);
- while (!list_empty(&ns->ns_unused_list)) {
+ while (!cfs_list_empty(&ns->ns_unused_list)) {
/* For any flags, stop scanning if @max is reached. */
if (max && added >= max)
break;
- list_for_each_entry_safe(lock, next, &ns->ns_unused_list, l_lru){
+ cfs_list_for_each_entry_safe(lock, next, &ns->ns_unused_list,
+ l_lru){
/* No locks which got blocking requests. */
LASSERT(!(lock->l_flags & LDLM_FL_BL_AST));
break;
LDLM_LOCK_GET(lock);
- spin_unlock(&ns->ns_unused_lock);
+ cfs_spin_unlock(&ns->ns_unused_lock);
lu_ref_add(&lock->l_reference, __FUNCTION__, cfs_current());
/* Pass the lock through the policy filter and see if it
lu_ref_del(&lock->l_reference,
__FUNCTION__, cfs_current());
LDLM_LOCK_RELEASE(lock);
- spin_lock(&ns->ns_unused_lock);
+ cfs_spin_lock(&ns->ns_unused_lock);
break;
}
lu_ref_del(&lock->l_reference,
__FUNCTION__, cfs_current());
LDLM_LOCK_RELEASE(lock);
- spin_lock(&ns->ns_unused_lock);
+ cfs_spin_lock(&ns->ns_unused_lock);
continue;
}
LASSERT(!lock->l_readers && !lock->l_writers);
* and can't use l_pending_chain as it is used both on
* server and client nevertheless bug 5666 says it is
* used only on server */
- LASSERT(list_empty(&lock->l_bl_ast));
- list_add(&lock->l_bl_ast, cancels);
+ LASSERT(cfs_list_empty(&lock->l_bl_ast));
+ cfs_list_add(&lock->l_bl_ast, cancels);
unlock_res_and_lock(lock);
lu_ref_del(&lock->l_reference, __FUNCTION__, cfs_current());
- spin_lock(&ns->ns_unused_lock);
+ cfs_spin_lock(&ns->ns_unused_lock);
added++;
unused--;
}
- spin_unlock(&ns->ns_unused_lock);
+ cfs_spin_unlock(&ns->ns_unused_lock);
RETURN(ldlm_cancel_list(cancels, added, cancel_flags));
}
* in a thread and this function will return after the thread has been
* asked to call the callback. when called with LDLM_SYNC the blocking
* callback will be performed in this function. */
-int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr, ldlm_sync_t sync,
+int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr, ldlm_sync_t mode,
int flags)
{
CFS_LIST_HEAD(cancels);
ENTRY;
#ifndef __KERNEL__
- sync = LDLM_SYNC; /* force to be sync in user space */
+ mode = LDLM_SYNC; /* force to be sync in user space */
#endif
count = ldlm_cancel_lru_local(ns, &cancels, nr, 0, 0, flags);
- if (sync == LDLM_ASYNC) {
- rc = ldlm_bl_to_thread_list(ns, NULL, &cancels, count);
- if (rc == 0)
- RETURN(count);
- }
- /* If an error occured in ASYNC mode, or this is SYNC mode,
- * cancel the list. */
- ldlm_cli_cancel_list(&cancels, count, NULL, 0);
- RETURN(count);
+ rc = ldlm_bl_to_thread_list(ns, NULL, &cancels, count, mode);
+ if (rc == 0)
+ RETURN(count);
+
+ RETURN(0);
}
/* Find and cancel locally unused locks found on resource, matched to the
* given policy, mode. GET the found locks and add them into the @cancels
* list. */
int ldlm_cancel_resource_local(struct ldlm_resource *res,
- struct list_head *cancels,
+ cfs_list_t *cancels,
ldlm_policy_data_t *policy,
ldlm_mode_t mode, int lock_flags,
int cancel_flags, void *opaque)
ENTRY;
lock_res(res);
- list_for_each_entry(lock, &res->lr_granted, l_res_link) {
+ cfs_list_for_each_entry(lock, &res->lr_granted, l_res_link) {
if (opaque != NULL && lock->l_ast_data != opaque) {
LDLM_ERROR(lock, "data %p doesn't match opaque %p",
lock->l_ast_data, opaque);
lock->l_flags |= LDLM_FL_CBPENDING | LDLM_FL_CANCELING |
lock_flags;
- LASSERT(list_empty(&lock->l_bl_ast));
- list_add(&lock->l_bl_ast, cancels);
+ LASSERT(cfs_list_empty(&lock->l_bl_ast));
+ cfs_list_add(&lock->l_bl_ast, cancels);
LDLM_LOCK_GET(lock);
count++;
}
* If @req is not NULL, put handles of locks in @cancels into the request
* buffer at the offset @off.
* Destroy @cancels at the end. */
-int ldlm_cli_cancel_list(struct list_head *cancels, int count,
+int ldlm_cli_cancel_list(cfs_list_t *cancels, int count,
struct ptlrpc_request *req, int flags)
{
struct ldlm_lock *lock;
int res = 0;
ENTRY;
- if (list_empty(cancels) || count == 0)
+ if (cfs_list_empty(cancels) || count == 0)
RETURN(0);
/* XXX: requests (both batched and not) could be sent in parallel.
* It would also speed up the case when the server does not support
* the feature. */
while (count > 0) {
- LASSERT(!list_empty(cancels));
- lock = list_entry(cancels->next, struct ldlm_lock, l_bl_ast);
+ LASSERT(!cfs_list_empty(cancels));
+ lock = cfs_list_entry(cancels->next, struct ldlm_lock,
+ l_bl_ast);
LASSERT(lock->l_conn_export);
if (exp_connect_cancelset(lock->l_conn_export)) {
{
int no_resource = 0;
- spin_lock(&ns->ns_hash_lock);
+ cfs_spin_lock(&ns->ns_hash_lock);
if (ns->ns_resources == 0)
no_resource = 1;
- spin_unlock(&ns->ns_hash_lock);
+ cfs_spin_unlock(&ns->ns_hash_lock);
RETURN(no_resource);
}
LCK_MINMODE, flags,
opaque));
- spin_lock(&ns->ns_hash_lock);
+ cfs_spin_lock(&ns->ns_hash_lock);
for (i = 0; i < RES_HASH_SIZE; i++) {
- struct list_head *tmp;
+ cfs_list_t *tmp;
tmp = ns->ns_hash[i].next;
while (tmp != &(ns->ns_hash[i])) {
struct ldlm_resource *res;
int rc;
- res = list_entry(tmp, struct ldlm_resource, lr_hash);
+ res = cfs_list_entry(tmp, struct ldlm_resource,
+ lr_hash);
ldlm_resource_getref(res);
- spin_unlock(&ns->ns_hash_lock);
+ cfs_spin_unlock(&ns->ns_hash_lock);
LDLM_RESOURCE_ADDREF(res);
rc = ldlm_cli_cancel_unused_resource(ns, &res->lr_name,
res->lr_name.name[0], rc);
LDLM_RESOURCE_DELREF(res);
- spin_lock(&ns->ns_hash_lock);
+ cfs_spin_lock(&ns->ns_hash_lock);
tmp = tmp->next;
ldlm_resource_putref_locked(res);
}
}
- spin_unlock(&ns->ns_hash_lock);
+ cfs_spin_unlock(&ns->ns_hash_lock);
RETURN(ELDLM_OK);
}
int ldlm_resource_foreach(struct ldlm_resource *res, ldlm_iterator_t iter,
void *closure)
{
- struct list_head *tmp, *next;
+ cfs_list_t *tmp, *next;
struct ldlm_lock *lock;
int rc = LDLM_ITER_CONTINUE;
RETURN(LDLM_ITER_CONTINUE);
lock_res(res);
- list_for_each_safe(tmp, next, &res->lr_granted) {
- lock = list_entry(tmp, struct ldlm_lock, l_res_link);
+ cfs_list_for_each_safe(tmp, next, &res->lr_granted) {
+ lock = cfs_list_entry(tmp, struct ldlm_lock, l_res_link);
if (iter(lock, closure) == LDLM_ITER_STOP)
GOTO(out, rc = LDLM_ITER_STOP);
}
- list_for_each_safe(tmp, next, &res->lr_converting) {
- lock = list_entry(tmp, struct ldlm_lock, l_res_link);
+ cfs_list_for_each_safe(tmp, next, &res->lr_converting) {
+ lock = cfs_list_entry(tmp, struct ldlm_lock, l_res_link);
if (iter(lock, closure) == LDLM_ITER_STOP)
GOTO(out, rc = LDLM_ITER_STOP);
}
- list_for_each_safe(tmp, next, &res->lr_waiting) {
- lock = list_entry(tmp, struct ldlm_lock, l_res_link);
+ cfs_list_for_each_safe(tmp, next, &res->lr_waiting) {
+ lock = cfs_list_entry(tmp, struct ldlm_lock, l_res_link);
if (iter(lock, closure) == LDLM_ITER_STOP)
GOTO(out, rc = LDLM_ITER_STOP);
{
int i, rc = LDLM_ITER_CONTINUE;
struct ldlm_resource *res;
- struct list_head *tmp;
+ cfs_list_t *tmp;
ENTRY;
- spin_lock(&ns->ns_hash_lock);
+ cfs_spin_lock(&ns->ns_hash_lock);
for (i = 0; i < RES_HASH_SIZE; i++) {
tmp = ns->ns_hash[i].next;
while (tmp != &(ns->ns_hash[i])) {
- res = list_entry(tmp, struct ldlm_resource, lr_hash);
+ res = cfs_list_entry(tmp, struct ldlm_resource,
+ lr_hash);
ldlm_resource_getref(res);
- spin_unlock(&ns->ns_hash_lock);
+ cfs_spin_unlock(&ns->ns_hash_lock);
LDLM_RESOURCE_ADDREF(res);
rc = iter(res, closure);
LDLM_RESOURCE_DELREF(res);
- spin_lock(&ns->ns_hash_lock);
+ cfs_spin_lock(&ns->ns_hash_lock);
tmp = tmp->next;
ldlm_resource_putref_locked(res);
if (rc == LDLM_ITER_STOP)
}
}
out:
- spin_unlock(&ns->ns_hash_lock);
+ cfs_spin_unlock(&ns->ns_hash_lock);
RETURN(rc);
}
-/* non-blocking function to manipulate a lock whose cb_data is being put away.*/
-void ldlm_resource_iterate(struct ldlm_namespace *ns,
- const struct ldlm_res_id *res_id,
- ldlm_iterator_t iter, void *data)
+/* non-blocking function to manipulate a lock whose cb_data is being put away.
+ * return 0: find no resource
+ * > 0: must be LDLM_ITER_STOP/LDLM_ITER_CONTINUE.
+ * < 0: errors
+ */
+int ldlm_resource_iterate(struct ldlm_namespace *ns,
+ const struct ldlm_res_id *res_id,
+ ldlm_iterator_t iter, void *data)
{
struct ldlm_resource *res;
+ int rc;
ENTRY;
if (ns == NULL) {
}
res = ldlm_resource_get(ns, NULL, res_id, 0, 0);
- if (res == NULL) {
- EXIT;
- return;
- }
+ if (res == NULL)
+ RETURN(0);
LDLM_RESOURCE_ADDREF(res);
- ldlm_resource_foreach(res, iter, data);
+ rc = ldlm_resource_foreach(res, iter, data);
LDLM_RESOURCE_DELREF(res);
ldlm_resource_putref(res);
- EXIT;
+ RETURN(rc);
}
/* Lock replay */
static int ldlm_chain_lock_for_replay(struct ldlm_lock *lock, void *closure)
{
- struct list_head *list = closure;
+ cfs_list_t *list = closure;
/* we use l_pending_chain here, because it's unused on clients. */
- LASSERTF(list_empty(&lock->l_pending_chain),"lock %p next %p prev %p\n",
+ LASSERTF(cfs_list_empty(&lock->l_pending_chain),
+ "lock %p next %p prev %p\n",
lock, &lock->l_pending_chain.next,&lock->l_pending_chain.prev);
/* bug 9573: don't replay locks left after eviction, or
* bug 17614: locks being actively cancelled. Get a reference
* on a lock so that it does not disapear under us (e.g. due to cancel)
*/
if (!(lock->l_flags & (LDLM_FL_FAILED|LDLM_FL_CANCELING))) {
- list_add(&lock->l_pending_chain, list);
+ cfs_list_add(&lock->l_pending_chain, list);
LDLM_LOCK_GET(lock);
}
struct obd_export *exp;
ENTRY;
- atomic_dec(&req->rq_import->imp_replay_inflight);
+ cfs_atomic_dec(&req->rq_import->imp_replay_inflight);
if (rc != ELDLM_OK)
GOTO(out, rc);
flags = LDLM_FL_REPLAY | LDLM_FL_BLOCK_GRANTED;
else if (lock->l_granted_mode)
flags = LDLM_FL_REPLAY | LDLM_FL_BLOCK_CONV;
- else if (!list_empty(&lock->l_res_link))
+ else if (!cfs_list_empty(&lock->l_res_link))
flags = LDLM_FL_REPLAY | LDLM_FL_BLOCK_WAIT;
else
flags = LDLM_FL_REPLAY;
LDLM_DEBUG(lock, "replaying lock:");
- atomic_inc(&req->rq_import->imp_replay_inflight);
+ cfs_atomic_inc(&req->rq_import->imp_replay_inflight);
CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args));
aa = ptlrpc_req_async_args(req);
aa->lock_handle = body->lock_handle[0];
ENTRY;
- LASSERT(atomic_read(&imp->imp_replay_inflight) == 0);
+ LASSERT(cfs_atomic_read(&imp->imp_replay_inflight) == 0);
/* ensure this doesn't fall to 0 before all have been queued */
- atomic_inc(&imp->imp_replay_inflight);
+ cfs_atomic_inc(&imp->imp_replay_inflight);
(void)ldlm_namespace_foreach(ns, ldlm_chain_lock_for_replay, &list);
- list_for_each_entry_safe(lock, next, &list, l_pending_chain) {
- list_del_init(&lock->l_pending_chain);
+ cfs_list_for_each_entry_safe(lock, next, &list, l_pending_chain) {
+ cfs_list_del_init(&lock->l_pending_chain);
if (rc) {
LDLM_LOCK_PUT(lock);
continue; /* or try to do the rest? */
LDLM_LOCK_PUT(lock);
}
- atomic_dec(&imp->imp_replay_inflight);
+ cfs_atomic_dec(&imp->imp_replay_inflight);
RETURN(rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff