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drbd: _conn_send_cmd(): Return 0 upon success and an error code otherwise

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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Andreas Gruenbacher 2011-03-15 23:48:25 +01:00 committed by Philipp Reisner
parent ce9879cb1f
commit ecf2363cb5
3 changed files with 11 additions and 14 deletions
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2
drivers/block/drbd/drbd_int.h
View File

@ -1926,7 +1926,7 @@ static inline int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
enum drbd_packet cmd, struct p_header *h, size_t size,
unsigned msg_flags)
{
return _conn_send_cmd(mdev->tconn, mdev->vnr, sock, cmd, h, size, msg_flags);
return !_conn_send_cmd(mdev->tconn, mdev->vnr, sock, cmd, h, size, msg_flags);
}
static inline int drbd_send_cmd(struct drbd_conf *mdev, int use_data_socket,

17
drivers/block/drbd/drbd_main.c
View File

@ -723,17 +723,14 @@ int _conn_send_cmd(struct drbd_tconn *tconn, int vnr, struct socket *sock,
enum drbd_packet cmd, struct p_header *h, size_t size,
unsigned msg_flags)
{
int sent, ok;
int err;
_prepare_header(tconn, vnr, h, cmd, size - sizeof(struct p_header));
sent = drbd_send(tconn, sock, h, size, msg_flags);
ok = (sent == size);
if (!ok && !signal_pending(current))
conn_warn(tconn, "short sent %s size=%d sent=%d\n",
cmdname(cmd), (int)size, sent);
return ok;
err = drbd_send_all(tconn, sock, h, size, msg_flags);
if (err && !signal_pending(current))
conn_warn(tconn, "short send %s size=%d\n",
cmdname(cmd), (int)size);
return err;
}
/* don't pass the socket. we may only look at it
@ -756,7 +753,7 @@ int conn_send_cmd(struct drbd_tconn *tconn, int vnr, int use_data_socket,
/* drbd_disconnect() could have called drbd_free_sock()
* while we were waiting in down()... */
if (likely(sock != NULL))
ok = _conn_send_cmd(tconn, vnr, sock, cmd, h, size, 0);
ok = !_conn_send_cmd(tconn, vnr, sock, cmd, h, size, 0);
if (use_data_socket)
mutex_unlock(&tconn->data.mutex);

6
drivers/block/drbd/drbd_receiver.c
View File

@ -711,7 +711,7 @@ static int drbd_send_fp(struct drbd_tconn *tconn, struct socket *sock, enum drbd
{
struct p_header *h = &tconn->data.sbuf.header;
return _conn_send_cmd(tconn, 0, sock, cmd, h, sizeof(*h), 0);
return !_conn_send_cmd(tconn, 0, sock, cmd, h, sizeof(*h), 0);
}
static enum drbd_packet drbd_recv_fp(struct drbd_tconn *tconn, struct socket *sock)
@ -4150,8 +4150,8 @@ static int drbd_send_handshake(struct drbd_tconn *tconn)
memset(p, 0, sizeof(*p));
p->protocol_min = cpu_to_be32(PRO_VERSION_MIN);
p->protocol_max = cpu_to_be32(PRO_VERSION_MAX);
ok = _conn_send_cmd(tconn, 0, tconn->data.socket, P_HAND_SHAKE,
&p->head, sizeof(*p), 0);
ok = !_conn_send_cmd(tconn, 0, tconn->data.socket, P_HAND_SHAKE,
&p->head, sizeof(*p), 0);
mutex_unlock(&tconn->data.mutex);
return ok;
}