#endif
#include "ptlrpc_internal.h"
-#include <class_hash.h>
static spinlock_t conn_lock;
static struct list_head conn_list;
static struct list_head conn_unused_list;
-static struct lustre_class_hash_body *conn_hash_body;
-static struct lustre_class_hash_body *conn_unused_hash_body;
-
-extern struct lustre_hash_operations conn_hash_operations;
void ptlrpc_dump_connections(void)
{
ptlrpc_lookup_conn_locked (lnet_process_id_t peer)
{
struct ptlrpc_connection *c;
+ struct list_head *tmp;
- c = lustre_hash_get_object_by_key(conn_hash_body, &peer);
- if (c != NULL)
- return c;
+ list_for_each(tmp, &conn_list) {
+ c = list_entry(tmp, struct ptlrpc_connection, c_link);
- c = lustre_hash_get_object_by_key(conn_unused_hash_body, &peer);
- if (c != NULL)
- return c;
+ if (peer.nid == c->c_peer.nid &&
+ peer.pid == c->c_peer.pid)
+ return ptlrpc_connection_addref(c);
+ }
+
+ list_for_each(tmp, &conn_unused_list) {
+ c = list_entry(tmp, struct ptlrpc_connection, c_link);
+
+ if (peer.nid == c->c_peer.nid &&
+ peer.pid == c->c_peer.pid) {
+ list_del(&c->c_link);
+ list_add(&c->c_link, &conn_list);
+ return ptlrpc_connection_addref(c);
+ }
+ }
return NULL;
}
{
struct ptlrpc_connection *c;
struct ptlrpc_connection *c2;
- int rc = 0;
ENTRY;
CDEBUG(D_INFO, "self %s peer %s\n",
spin_lock(&conn_lock);
c2 = ptlrpc_lookup_conn_locked(peer);
- if (c2 == NULL) {
+ if (c2 == NULL)
list_add(&c->c_link, &conn_list);
- rc = lustre_hash_additem_unique(conn_hash_body, &peer,
- &c->c_hash);
- if (rc != 0) {
- CERROR("Cannot add connection to conn_hash_body\n");
- goto out_conn;
- }
- }
-out_conn:
spin_unlock(&conn_lock);
- if (c2 == NULL && rc == 0)
+ if (c2 == NULL)
RETURN (c);
-
- if (c != NULL)
- OBD_FREE(c, sizeof(*c));
-
- c2 = rc != 0 ? NULL : c2;
+
+ OBD_FREE(c, sizeof(*c));
RETURN (c2);
}
int ptlrpc_put_connection(struct ptlrpc_connection *c)
{
int rc = 0;
- lnet_process_id_t peer;
ENTRY;
if (c == NULL) {
RETURN(0);
}
- peer = c->c_peer;
-
CDEBUG (D_INFO, "connection=%p refcount %d to %s\n",
c, atomic_read(&c->c_refcount) - 1,
libcfs_nid2str(c->c_peer.nid));
- LASSERT(!hlist_unhashed(&c->c_hash));
-
- if (atomic_dec_return(&c->c_refcount) == 1) {
-
+ if (atomic_dec_and_test(&c->c_refcount)) {
spin_lock(&conn_lock);
-
- lustre_hash_delitem(conn_hash_body, &peer, &c->c_hash);
list_del(&c->c_link);
-
list_add(&c->c_link, &conn_unused_list);
- rc = lustre_hash_additem_unique(conn_unused_hash_body, &peer,
- &c->c_hash);
- if (rc != 0) {
- spin_unlock(&conn_lock);
- CERROR("Cannot hash connection to conn_hash_body\n");
- GOTO(ret, rc);
- }
-
spin_unlock(&conn_lock);
rc = 1;
-
- }
-
+ }
if (atomic_read(&c->c_refcount) < 0)
CERROR("connection %p refcount %d!\n",
c, atomic_read(&c->c_refcount));
-ret :
RETURN(rc);
}
RETURN(c);
}
-int ptlrpc_init_connection(void)
+void ptlrpc_init_connection(void)
{
- int rc = 0;
-
CFS_INIT_LIST_HEAD(&conn_list);
- rc = lustre_hash_init(&conn_hash_body, "CONN_HASH",
- 128, &conn_hash_operations);
- if (rc)
- GOTO(ret, rc);
-
CFS_INIT_LIST_HEAD(&conn_unused_list);
- rc = lustre_hash_init(&conn_unused_hash_body, "CONN_UNUSED_HASH",
- 128, &conn_hash_operations);
- if (rc)
- GOTO(ret, rc);
-
spin_lock_init(&conn_lock);
-ret :
- if (rc) {
- lustre_hash_exit(&conn_hash_body);
- lustre_hash_exit(&conn_unused_hash_body);
- }
- RETURN(rc);
}
void ptlrpc_cleanup_connection(void)
struct ptlrpc_connection *c;
spin_lock(&conn_lock);
-
- lustre_hash_exit(&conn_unused_hash_body);
list_for_each_safe(tmp, pos, &conn_unused_list) {
c = list_entry(tmp, struct ptlrpc_connection, c_link);
list_del(&c->c_link);
OBD_FREE(c, sizeof(*c));
}
-
- lustre_hash_exit(&conn_hash_body);
list_for_each_safe(tmp, pos, &conn_list) {
c = list_entry(tmp, struct ptlrpc_connection, c_link);
CERROR("Connection %p/%s has refcount %d (nid=%s)\n",