req->rq_send_state = LUSTRE_IMP_FULL;
req->rq_timeout = 2; /* 2 second timeout for initial AST reply */
rc = ptlrpc_queue_wait(req);
- if (rc == -ETIMEDOUT || rc == -EINTR) {
+ if (rc == -ETIMEDOUT || rc == -EINTR || rc == -ENOTCONN) {
LASSERT(lock->l_export);
if (lock->l_export->exp_libclient) {
CDEBUG(D_HA, "BLOCKING AST to liblustre client (nid "
struct ptlrpc_request *req;
struct timeval granted_time;
long total_enqueue_wait;
- int rc = 0, size = sizeof(*body);
+ int rc = 0, size[2] = {sizeof(*body)}, buffers = 1;
ENTRY;
- if (lock == NULL) {
- LBUG();
- RETURN(-EINVAL);
- }
+ LASSERT(lock != NULL);
do_gettimeofday(&granted_time);
total_enqueue_wait = timeval_sub(&granted_time, &lock->l_enqueued_time);
if (total_enqueue_wait / 1000000 > obd_timeout)
LDLM_ERROR(lock, "enqueue wait took %ldus", total_enqueue_wait);
+ if (lock->l_resource->lr_lvb_len) {
+ buffers = 2;
+ size[1] = lock->l_resource->lr_lvb_len;
+ }
+
req = ptlrpc_prep_req(lock->l_export->exp_imp_reverse,
- LDLM_CP_CALLBACK, 1, &size, NULL);
- if (!req)
+ LDLM_CP_CALLBACK, buffers, size, NULL);
+ if (req == NULL)
RETURN(-ENOMEM);
body = lustre_msg_buf(req->rq_reqmsg, 0, sizeof (*body));
body->lock_flags = flags;
ldlm_lock2desc(lock, &body->lock_desc);
+ if (buffers == 2) {
+ void *lvb = lustre_msg_buf(req->rq_reqmsg, 1,
+ lock->l_resource->lr_lvb_len);
+ memcpy(lvb, lock->l_resource->lr_lvb_data,
+ lock->l_resource->lr_lvb_len);
+ }
+
LDLM_DEBUG(lock, "server preparing completion AST (after %ldus wait)",
total_enqueue_wait);
req->rq_replen = lustre_msg_size(0, NULL);
l_unlock(&lock->l_resource->lr_namespace->ns_lock);
rc = ptlrpc_queue_wait(req);
- if (rc == -ETIMEDOUT || rc == -EINTR) {
+ if (rc == -ETIMEDOUT || rc == -EINTR || rc == -ENOTCONN) {
ldlm_del_waiting_lock(lock);
ldlm_failed_ast(lock, rc, "completion");
} else if (rc) {
RETURN(rc);
}
+int ldlm_server_glimpse_ast(struct ldlm_lock *lock, void *data)
+{
+ struct ldlm_resource *res = lock->l_resource;
+ struct ldlm_request *body;
+ struct ptlrpc_request *req;
+ int rc = 0, size = sizeof(*body);
+ ENTRY;
+
+ LASSERT(lock != NULL);
+
+ req = ptlrpc_prep_req(lock->l_export->exp_imp_reverse,
+ LDLM_GL_CALLBACK, 1, &size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ body = lustre_msg_buf(req->rq_reqmsg, 0, sizeof(*body));
+ memcpy(&body->lock_handle1, &lock->l_remote_handle,
+ sizeof(body->lock_handle1));
+ ldlm_lock2desc(lock, &body->lock_desc);
+
+ size = lock->l_resource->lr_lvb_len;
+ req->rq_replen = lustre_msg_size(1, &size);
+
+ req->rq_send_state = LUSTRE_IMP_FULL;
+ req->rq_timeout = 2; /* 2 second timeout for initial AST reply */
+
+ rc = ptlrpc_queue_wait(req);
+ if (rc == -ETIMEDOUT || rc == -EINTR || rc == -ENOTCONN) {
+ ldlm_del_waiting_lock(lock);
+ ldlm_failed_ast(lock, rc, "glimpse");
+ } else if (rc) {
+ LDLM_ERROR(lock, "client sent rc %d rq_status %d from "
+ "completion AST\n", rc, req->rq_status);
+ ldlm_lock_cancel(lock);
+ } else {
+ rc = res->lr_namespace->ns_lvbo->lvbo_update(res,
+ req->rq_repmsg, 0);
+ }
+ ptlrpc_req_finished(req);
+ RETURN(rc);
+}
+
int ldlm_handle_enqueue(struct ptlrpc_request *req,
ldlm_completion_callback completion_callback,
- ldlm_blocking_callback blocking_callback)
+ ldlm_blocking_callback blocking_callback,
+ ldlm_glimpse_callback glimpse_callback)
{
struct obd_device *obddev = req->rq_export->exp_obd;
struct ldlm_reply *dlm_rep;
struct ldlm_request *dlm_req;
- int rc, size = sizeof(*dlm_rep), cookielen = 0;
+ int rc, size[2] = {sizeof(*dlm_rep)};
__u32 flags;
ldlm_error_t err;
struct ldlm_lock *lock = NULL;
}
flags = dlm_req->lock_flags;
- if (dlm_req->lock_desc.l_resource.lr_type == LDLM_PLAIN &&
- (flags & LDLM_FL_HAS_INTENT)) {
- /* In this case, the reply buffer is allocated deep in
- * local_lock_enqueue by the policy function. */
- cookie = req;
- cookielen = sizeof(*req);
- } else {
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc) {
- CERROR("out of memory\n");
- RETURN(-ENOMEM);
- }
- if (dlm_req->lock_desc.l_resource.lr_type != LDLM_PLAIN) {
- cookie = &dlm_req->lock_desc.l_policy_data;
- cookielen = sizeof(ldlm_policy_data_t);
- }
- }
/* The lock's callback data might be set in the policy function */
- lock = ldlm_lock_create(obddev->obd_namespace,
- &dlm_req->lock_handle2,
+ lock = ldlm_lock_create(obddev->obd_namespace, &dlm_req->lock_handle2,
dlm_req->lock_desc.l_resource.lr_name,
dlm_req->lock_desc.l_resource.lr_type,
dlm_req->lock_desc.l_req_mode,
- blocking_callback, completion_callback, NULL);
+ blocking_callback, completion_callback,
+ glimpse_callback, NULL, 0);
if (!lock)
GOTO(out, err = -ENOMEM);
&lock->l_export->exp_ldlm_data.led_held_locks);
l_unlock(&lock->l_resource->lr_namespace->ns_lock);
- err = ldlm_lock_enqueue(obddev->obd_namespace, &lock, cookie, cookielen,
- &flags);
+ if (flags & LDLM_FL_HAS_INTENT) {
+ /* In this case, the reply buffer is allocated deep in
+ * local_lock_enqueue by the policy function. */
+ cookie = req;
+ } else {
+ int buffers = 1;
+ if (lock->l_resource->lr_lvb_len) {
+ size[1] = lock->l_resource->lr_lvb_len;
+ buffers = 2;
+ }
+
+ rc = lustre_pack_reply(req, buffers, size, NULL);
+ if (rc)
+ RETURN(rc);
+ }
+
+ if (dlm_req->lock_desc.l_resource.lr_type != LDLM_PLAIN)
+ memcpy(&lock->l_policy_data, &dlm_req->lock_desc.l_policy_data,
+ sizeof(ldlm_policy_data_t));
+
+ err = ldlm_lock_enqueue(obddev->obd_namespace, &lock, cookie, &flags);
if (err)
GOTO(out, err);
dlm_rep = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*dlm_rep));
dlm_rep->lock_flags = flags;
+ ldlm_lock2desc(lock, &dlm_rep->lock_desc);
ldlm_lock2handle(lock, &dlm_rep->lock_handle);
- if (dlm_req->lock_desc.l_resource.lr_type != LDLM_PLAIN) {
- memcpy(&dlm_rep->lock_policy_data, &lock->l_policy_data,
- cookielen);
- }
- if (dlm_rep->lock_flags & LDLM_FL_LOCK_CHANGED) {
- memcpy(&dlm_rep->lock_resource_name, &lock->l_resource->lr_name,
- sizeof(dlm_rep->lock_resource_name));
- dlm_rep->lock_mode = lock->l_req_mode;
- }
/* We never send a blocking AST until the lock is granted, but
* we can tell it right now */
EXIT;
out:
+ if (lock->l_resource->lr_lvb_len > 0) {
+ void *lvb = lustre_msg_buf(req->rq_repmsg, 1,
+ lock->l_resource->lr_lvb_len);
+ memcpy(lvb, lock->l_resource->lr_lvb_data,
+ lock->l_resource->lr_lvb_len);
+ }
req->rq_status = err;
/* The LOCK_CHANGED code in ldlm_lock_enqueue depends on this
{
struct ldlm_request *dlm_req;
struct ldlm_lock *lock;
+ struct ldlm_resource *res;
char str[PTL_NALFMT_SIZE];
int rc;
ENTRY;
- dlm_req = lustre_swab_reqbuf (req, 0, sizeof (*dlm_req),
+ dlm_req = lustre_swab_reqbuf(req, 0, sizeof (*dlm_req),
lustre_swab_ldlm_request);
if (dlm_req == NULL) {
CERROR("bad request buffer for cancel\n");
req->rq_status = ESTALE;
} else {
LDLM_DEBUG(lock, "server-side cancel handler START");
+ res = lock->l_resource;
+ if (res && res->lr_namespace->ns_lvbo &&
+ res->lr_namespace->ns_lvbo->lvbo_update) {
+ (void)res->lr_namespace->ns_lvbo->lvbo_update
+ (res, NULL, 0);
+ //(res, req->rq_reqmsg, 1);
+ }
+
ldlm_lock_cancel(lock);
if (ldlm_del_waiting_lock(lock))
CDEBUG(D_DLMTRACE, "cancelled waiting lock %p\n", lock);
- req->rq_status = 0;
+ req->rq_status = rc;
}
if (ptlrpc_reply(req) != 0)
LDLM_DEBUG(lock, "completion AST includes blocking AST");
}
+ if (lock->l_lvb_len) {
+ void *lvb;
+ lvb = lustre_swab_reqbuf(req, 1, lock->l_lvb_len,
+ lock->l_lvb_swabber);
+ if (lvb == NULL) {
+ LDLM_ERROR(lock, "completion AST did not contain "
+ "expected LVB!");
+ } else {
+ memcpy(lock->l_lvb_data, lvb, lock->l_lvb_len);
+ }
+ }
+
lock->l_resource->lr_tmp = &ast_list;
ldlm_grant_lock(lock, req, sizeof(*req), 1);
lock->l_resource->lr_tmp = NULL;
EXIT;
}
+static void ldlm_handle_gl_callback(struct ptlrpc_request *req,
+ struct ldlm_namespace *ns,
+ struct ldlm_request *dlm_req,
+ struct ldlm_lock *lock)
+{
+ ENTRY;
+
+ l_lock(&ns->ns_lock);
+ LDLM_DEBUG(lock, "client glimpse AST callback handler");
+
+ if (lock->l_glimpse_ast != NULL) {
+ l_unlock(&ns->ns_lock);
+ l_check_no_ns_lock(ns);
+ lock->l_glimpse_ast(lock, req);
+ l_lock(&ns->ns_lock);
+ }
+
+ if (lock->l_granted_mode == LCK_PW &&
+ !lock->l_readers && !lock->l_writers &&
+ time_after(jiffies, lock->l_last_used + 10 * HZ)) {
+ l_unlock(&ns->ns_lock);
+ ldlm_handle_bl_callback(ns, NULL, lock);
+ EXIT;
+ return;
+ }
+
+ l_unlock(&ns->ns_lock);
+ LDLM_LOCK_PUT(lock);
+ EXIT;
+}
+
static int ldlm_callback_reply(struct ptlrpc_request *req, int rc)
{
req->rq_status = rc;
OBD_FAIL_RETURN(OBD_FAIL_LDLM_BL_CALLBACK, 0);
} else if (req->rq_reqmsg->opc == LDLM_CP_CALLBACK) {
OBD_FAIL_RETURN(OBD_FAIL_LDLM_CP_CALLBACK, 0);
+ } else if (req->rq_reqmsg->opc == LDLM_GL_CALLBACK) {
+ OBD_FAIL_RETURN(OBD_FAIL_LDLM_GL_CALLBACK, 0);
} else if (req->rq_reqmsg->opc == OBD_LOG_CANCEL) {
OBD_FAIL_RETURN(OBD_FAIL_OBD_LOG_CANCEL_NET, 0);
} else if (req->rq_reqmsg->opc == LLOG_ORIGIN_HANDLE_CREATE) {
* cancelling right now, because it's unused, or have an intent result
* in the reply, so we might have to push the responsibility for sending
* the reply down into the AST handlers, alas. */
- if (req->rq_reqmsg->opc != LDLM_BL_CALLBACK)
+ if (req->rq_reqmsg->opc == LDLM_CP_CALLBACK)
ldlm_callback_reply(req, 0);
switch (req->rq_reqmsg->opc) {
CDEBUG(D_INODE, "completion ast\n");
ldlm_handle_cp_callback(req, ns, dlm_req, lock);
break;
+ case LDLM_GL_CALLBACK:
+ CDEBUG(D_INODE, "glimpse ast\n");
+ ldlm_handle_gl_callback(req, ns, dlm_req, lock);
+ break;
default:
LBUG(); /* checked above */
}
/* ldlm_flock.c */
EXPORT_SYMBOL(ldlm_flock_completion_ast);
+/* ldlm_extent.c */
+EXPORT_SYMBOL(ldlm_extent_shift_kms);
+
/* ldlm_lock.c */
+EXPORT_SYMBOL(ldlm_get_processing_policy);
EXPORT_SYMBOL(ldlm_lock2desc);
EXPORT_SYMBOL(ldlm_register_intent);
-EXPORT_SYMBOL(ldlm_unregister_intent);
EXPORT_SYMBOL(ldlm_lockname);
EXPORT_SYMBOL(ldlm_typename);
EXPORT_SYMBOL(ldlm_lock2handle);
EXPORT_SYMBOL(__ldlm_handle2lock);
+EXPORT_SYMBOL(ldlm_lock_get);
EXPORT_SYMBOL(ldlm_lock_put);
EXPORT_SYMBOL(ldlm_lock_match);
EXPORT_SYMBOL(ldlm_lock_cancel);
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);
/* ldlm_request.c */
EXPORT_SYMBOL(ldlm_completion_ast);
/* ldlm_lockd.c */
EXPORT_SYMBOL(ldlm_server_blocking_ast);
EXPORT_SYMBOL(ldlm_server_completion_ast);
+EXPORT_SYMBOL(ldlm_server_glimpse_ast);
EXPORT_SYMBOL(ldlm_handle_enqueue);
EXPORT_SYMBOL(ldlm_handle_cancel);
EXPORT_SYMBOL(ldlm_handle_convert);
EXPORT_SYMBOL(ldlm_namespace_new);
EXPORT_SYMBOL(ldlm_namespace_cleanup);
EXPORT_SYMBOL(ldlm_namespace_free);
+EXPORT_SYMBOL(ldlm_resource_get);
+EXPORT_SYMBOL(ldlm_resource_putref);
/* l_lock.c */
EXPORT_SYMBOL(l_lock);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff