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new helper: msg_data_left()

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convert open-coded instances

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2014-12-15 21:39:31 -05:00
commit 01e97e6517
8 changed files with 27 additions and 23 deletions
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4
net/socket.c
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@ -612,7 +612,7 @@ EXPORT_SYMBOL(__sock_tx_timestamp);
static inline int sock_sendmsg_nosec(struct socket *sock, struct msghdr *msg)
{
int ret = sock->ops->sendmsg(sock, msg, iov_iter_count(&msg->msg_iter));
int ret = sock->ops->sendmsg(sock, msg, msg_data_left(msg));
BUG_ON(ret == -EIOCBQUEUED);
return ret;
}
@ -620,7 +620,7 @@ static inline int sock_sendmsg_nosec(struct socket *sock, struct msghdr *msg)
int sock_sendmsg(struct socket *sock, struct msghdr *msg)
{
int err = security_socket_sendmsg(sock, msg,
iov_iter_count(&msg->msg_iter));
msg_data_left(msg));
return err ?: sock_sendmsg_nosec(sock, msg);
}