libceph: fix handling of immediate socket connect failure
If the connect() call immediately fails such that sock == NULL, we
still need con_close_socket() to reset our socket state to CLOSED.
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index fa16f2c..a6a0c7a 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -224,6 +224,8 @@
old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CLOSED);
if (WARN_ON(old_state != CON_SOCK_STATE_NEW))
printk("%s: unexpected old state %d\n", __func__, old_state);
+ dout("%s con %p sock %d -> %d\n", __func__, con, old_state,
+ CON_SOCK_STATE_CLOSED);
}
static void con_sock_state_connecting(struct ceph_connection *con)
@@ -233,6 +235,8 @@
old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CONNECTING);
if (WARN_ON(old_state != CON_SOCK_STATE_CLOSED))
printk("%s: unexpected old state %d\n", __func__, old_state);
+ dout("%s con %p sock %d -> %d\n", __func__, con, old_state,
+ CON_SOCK_STATE_CONNECTING);
}
static void con_sock_state_connected(struct ceph_connection *con)
@@ -242,6 +246,8 @@
old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CONNECTED);
if (WARN_ON(old_state != CON_SOCK_STATE_CONNECTING))
printk("%s: unexpected old state %d\n", __func__, old_state);
+ dout("%s con %p sock %d -> %d\n", __func__, con, old_state,
+ CON_SOCK_STATE_CONNECTED);
}
static void con_sock_state_closing(struct ceph_connection *con)
@@ -253,6 +259,8 @@
old_state != CON_SOCK_STATE_CONNECTED &&
old_state != CON_SOCK_STATE_CLOSING))
printk("%s: unexpected old state %d\n", __func__, old_state);
+ dout("%s con %p sock %d -> %d\n", __func__, con, old_state,
+ CON_SOCK_STATE_CLOSING);
}
static void con_sock_state_closed(struct ceph_connection *con)
@@ -262,8 +270,11 @@
old_state = atomic_xchg(&con->sock_state, CON_SOCK_STATE_CLOSED);
if (WARN_ON(old_state != CON_SOCK_STATE_CONNECTED &&
old_state != CON_SOCK_STATE_CLOSING &&
- old_state != CON_SOCK_STATE_CONNECTING))
+ old_state != CON_SOCK_STATE_CONNECTING &&
+ old_state != CON_SOCK_STATE_CLOSED))
printk("%s: unexpected old state %d\n", __func__, old_state);
+ dout("%s con %p sock %d -> %d\n", __func__, con, old_state,
+ CON_SOCK_STATE_CLOSED);
}
/*
@@ -448,14 +459,14 @@
*/
static int con_close_socket(struct ceph_connection *con)
{
- int rc;
+ int rc = 0;
dout("con_close_socket on %p sock %p\n", con, con->sock);
- if (!con->sock)
- return 0;
- rc = con->sock->ops->shutdown(con->sock, SHUT_RDWR);
- sock_release(con->sock);
- con->sock = NULL;
+ if (con->sock) {
+ rc = con->sock->ops->shutdown(con->sock, SHUT_RDWR);
+ sock_release(con->sock);
+ con->sock = NULL;
+ }
/*
* Forcibly clear the SOCK_CLOSED flag. It gets set
@@ -464,6 +475,7 @@
* shut the socket down.
*/
clear_bit(CON_FLAG_SOCK_CLOSED, &con->flags);
+
con_sock_state_closed(con);
return rc;
}