*/
#define DEBUG_SUBSYSTEM S_RPC
-
+#ifdef __KERNEL__
#include <linux/obd_support.h>
+#include <linux/obd_class.h>
#include <linux/lustre_net.h>
+#else
+#include <liblustre.h>
+#endif
+
+#include "ptlrpc_internal.h"
static spinlock_t conn_lock;
static struct list_head conn_list;
static struct list_head conn_unused_list;
-struct ptlrpc_connection *ptlrpc_get_connection(struct lustre_peer *peer,
- char *uuid)
+void ptlrpc_dump_connections(void)
+{
+ struct list_head *tmp;
+ struct ptlrpc_connection *c;
+ ENTRY;
+
+ list_for_each(tmp, &conn_list) {
+ c = list_entry(tmp, struct ptlrpc_connection, c_link);
+ CERROR("Connection %p/%s has refcount %d (nid="LPX64" on %s)\n",
+ c, c->c_remote_uuid.uuid, atomic_read(&c->c_refcount),
+ c->c_peer.peer_nid, c->c_peer.peer_ni->pni_name);
+ }
+ EXIT;
+}
+
+struct ptlrpc_connection *ptlrpc_get_connection(struct ptlrpc_peer *peer,
+ struct obd_uuid *uuid)
{
struct list_head *tmp, *pos;
struct ptlrpc_connection *c;
ENTRY;
- CDEBUG(D_INFO, "peer is %08x %08lx %08lx\n",
- peer->peer_nid, peer->peer_ni.nal_idx, peer->peer_ni.handle_idx);
+
+ CDEBUG(D_INFO, "peer is "LPX64" on %s\n",
+ peer->peer_nid, peer->peer_ni->pni_name);
spin_lock(&conn_lock);
+ if (list_empty(&conn_list)) {
+ if (!ptlrpc_get_ldlm_hooks()) {
+ spin_unlock(&conn_lock);
+ RETURN(NULL);
+ }
+ }
+
list_for_each(tmp, &conn_list) {
c = list_entry(tmp, struct ptlrpc_connection, c_link);
- if (memcmp(peer, &c->c_peer, sizeof(*peer)) == 0 &&
- (!uuid || strcmp(c->c_remote_uuid, uuid) == 0)) {
+ if (peer->peer_nid == c->c_peer.peer_nid &&
+ peer->peer_ni == c->c_peer.peer_ni) {
ptlrpc_connection_addref(c);
GOTO(out, c);
}
list_for_each_safe(tmp, pos, &conn_unused_list) {
c = list_entry(tmp, struct ptlrpc_connection, c_link);
- if (memcmp(peer, &c->c_peer, sizeof(*peer)) == 0 &&
- (!uuid || strcmp(c->c_remote_uuid, uuid) == 0)) {
+ if (peer->peer_nid == c->c_peer.peer_nid &&
+ peer->peer_ni == c->c_peer.peer_ni) {
ptlrpc_connection_addref(c);
list_del(&c->c_link);
list_add(&c->c_link, &conn_list);
if (c == NULL)
GOTO(out, c);
- c->c_level = LUSTRE_CONN_NEW;
- c->c_xid_in = 1;
- c->c_xid_out = 1;
c->c_generation = 1;
c->c_epoch = 1;
c->c_bootcount = 0;
- strcpy(c->c_remote_uuid, uuid);
- INIT_LIST_HEAD(&c->c_delayed_head);
- INIT_LIST_HEAD(&c->c_sending_head);
- INIT_LIST_HEAD(&c->c_dying_head);
- INIT_LIST_HEAD(&c->c_clients);
- INIT_LIST_HEAD(&c->c_exports);
+ c->c_flags = 0;
+ if (uuid && uuid->uuid) /* XXX ???? */
+ obd_str2uuid(&c->c_remote_uuid, uuid->uuid);
atomic_set(&c->c_refcount, 0);
- ptlrpc_connection_addref(c);
+ memcpy(&c->c_peer, peer, sizeof(c->c_peer));
spin_lock_init(&c->c_lock);
- memcpy(&c->c_peer, peer, sizeof(c->c_peer));
+ ptlrpc_connection_addref(c);
+
list_add(&c->c_link, &conn_list);
EXIT;
int rc = 0;
ENTRY;
- CDEBUG(D_INFO, "connection=%p refcount %d\n",
- c, atomic_read(&c->c_refcount) - 1);
+ if (c == NULL) {
+ CERROR("NULL connection\n");
+ RETURN(0);
+ }
+
+ CDEBUG (D_INFO, "connection=%p refcount %d to "LPX64" on %s\n",
+ c, atomic_read(&c->c_refcount) - 1, c->c_peer.peer_nid,
+ c->c_peer.peer_ni->pni_name);
+
if (atomic_dec_and_test(&c->c_refcount)) {
spin_lock(&conn_lock);
list_del(&c->c_link);
list_add(&c->c_link, &conn_unused_list);
+ if (list_empty(&conn_list)) {
+ ptlrpc_put_ldlm_hooks();
+ }
spin_unlock(&conn_lock);
rc = 1;
}
struct ptlrpc_connection *ptlrpc_connection_addref(struct ptlrpc_connection *c)
{
ENTRY;
- CDEBUG(D_INFO, "connection=%p refcount %d\n",
- c, atomic_read(&c->c_refcount) + 1);
atomic_inc(&c->c_refcount);
+ CDEBUG (D_INFO, "connection=%p refcount %d to "LPX64" on %s\n",
+ c, atomic_read(&c->c_refcount), c->c_peer.peer_nid,
+ c->c_peer.peer_ni->pni_name);
RETURN(c);
}
}
list_for_each_safe(tmp, pos, &conn_list) {
c = list_entry(tmp, struct ptlrpc_connection, c_link);
- CERROR("Connection %p has refcount %d at cleanup (nid=%lu)!\n",
- c, atomic_read(&c->c_refcount),
- (unsigned long)c->c_peer.peer_nid);
+ CERROR("Connection %p/%s has refcount %d (nid="LPX64" on %s)\n",
+ c, c->c_remote_uuid.uuid, atomic_read(&c->c_refcount),
+ c->c_peer.peer_nid, c->c_peer.peer_ni->pni_name);
list_del(&c->c_link);
OBD_FREE(c, sizeof(*c));
}