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authorAndy Grover <andy.grover@oracle.com>2010-06-11 13:49:13 -0700
committerAndy Grover <andy.grover@oracle.com>2010-09-08 18:10:13 -0700
commit2dc393573430f853e56e25bf4b41c34ba2aa8fd6 (patch)
treef7a3ddb99aab472aa5054a10043419d4b22bb312 /net/rds/threads.c
parent9de0864cf55927a7383b5ba6e48834ff3ef053de (diff)
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RDS: move rds_shutdown_worker impl. to rds_conn_shutdown
This fits better in connection.c, rather than threads.c. Signed-off-by: Andy Grover <andy.grover@oracle.com>
Diffstat (limited to 'net/rds/threads.c')
-rw-r--r--net/rds/threads.c61
1 files changed, 8 insertions, 53 deletions
diff --git a/net/rds/threads.c b/net/rds/threads.c
index 786c20eaaf5e..6e2e43d5f576 100644
--- a/net/rds/threads.c
+++ b/net/rds/threads.c
@@ -110,7 +110,7 @@ EXPORT_SYMBOL_GPL(rds_connect_complete);
* We should *always* start with a random backoff; otherwise a broken connection
* will always take several iterations to be re-established.
*/
-static void rds_queue_reconnect(struct rds_connection *conn)
+void rds_queue_reconnect(struct rds_connection *conn)
{
unsigned long rand;
@@ -156,58 +156,6 @@ void rds_connect_worker(struct work_struct *work)
}
}
-void rds_shutdown_worker(struct work_struct *work)
-{
- struct rds_connection *conn = container_of(work, struct rds_connection, c_down_w);
-
- /* shut it down unless it's down already */
- if (!rds_conn_transition(conn, RDS_CONN_DOWN, RDS_CONN_DOWN)) {
- /*
- * Quiesce the connection mgmt handlers before we start tearing
- * things down. We don't hold the mutex for the entire
- * duration of the shutdown operation, else we may be
- * deadlocking with the CM handler. Instead, the CM event
- * handler is supposed to check for state DISCONNECTING
- */
- mutex_lock(&conn->c_cm_lock);
- if (!rds_conn_transition(conn, RDS_CONN_UP, RDS_CONN_DISCONNECTING) &&
- !rds_conn_transition(conn, RDS_CONN_ERROR, RDS_CONN_DISCONNECTING)) {
- rds_conn_error(conn, "shutdown called in state %d\n",
- atomic_read(&conn->c_state));
- mutex_unlock(&conn->c_cm_lock);
- return;
- }
- mutex_unlock(&conn->c_cm_lock);
-
- mutex_lock(&conn->c_send_lock);
- conn->c_trans->conn_shutdown(conn);
- rds_conn_reset(conn);
- mutex_unlock(&conn->c_send_lock);
-
- if (!rds_conn_transition(conn, RDS_CONN_DISCONNECTING, RDS_CONN_DOWN)) {
- /* This can happen - eg when we're in the middle of tearing
- * down the connection, and someone unloads the rds module.
- * Quite reproduceable with loopback connections.
- * Mostly harmless.
- */
- rds_conn_error(conn,
- "%s: failed to transition to state DOWN, "
- "current state is %d\n",
- __func__,
- atomic_read(&conn->c_state));
- return;
- }
- }
-
- /* Then reconnect if it's still live.
- * The passive side of an IB loopback connection is never added
- * to the conn hash, so we never trigger a reconnect on this
- * conn - the reconnect is always triggered by the active peer. */
- cancel_delayed_work(&conn->c_conn_w);
- if (!hlist_unhashed(&conn->c_hash_node))
- rds_queue_reconnect(conn);
-}
-
void rds_send_worker(struct work_struct *work)
{
struct rds_connection *conn = container_of(work, struct rds_connection, c_send_w.work);
@@ -252,6 +200,13 @@ void rds_recv_worker(struct work_struct *work)
}
}
+void rds_shutdown_worker(struct work_struct *work)
+{
+ struct rds_connection *conn = container_of(work, struct rds_connection, c_down_w);
+
+ rds_conn_shutdown(conn);
+}
+
void rds_threads_exit(void)
{
destroy_workqueue(rds_wq);