diff options
| author | Nicolas Dichtel | 2015-01-16 14:35:09 +0100 |
|---|---|---|
| committer | David S. Miller | 2015-01-17 23:58:37 -0500 |
| commit | 66c1a12c65c5bee2427b7813218d1279e4906084 (patch) | |
| tree | 37a6516934c7478a42cb056a0fe3ef302d240654 | |
| parent | 7b68b2f71497a611755a490c3dad25c32f506cdf (diff) | |
socket: use ki_nbytes instead of iov_length()
This field already contains the length of the iovec, no need to calculate it
again.
Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/socket.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/net/socket.c b/net/socket.c index e1278d7e1d5d..9fcf15b61009 100644 --- a/net/socket.c +++ b/net/socket.c @@ -882,16 +882,15 @@ static ssize_t do_sock_read(struct msghdr *msg, struct kiocb *iocb, unsigned long nr_segs) { struct socket *sock = file->private_data; - size_t size = iov_length(iov, nr_segs); msg->msg_name = NULL; msg->msg_namelen = 0; msg->msg_control = NULL; msg->msg_controllen = 0; - iov_iter_init(&msg->msg_iter, READ, iov, nr_segs, size); + iov_iter_init(&msg->msg_iter, READ, iov, nr_segs, iocb->ki_nbytes); msg->msg_flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0; - return __sock_recvmsg(iocb, sock, msg, size, msg->msg_flags); + return __sock_recvmsg(iocb, sock, msg, iocb->ki_nbytes, msg->msg_flags); } static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov, @@ -917,18 +916,17 @@ static ssize_t do_sock_write(struct msghdr *msg, struct kiocb *iocb, unsigned long nr_segs) { struct socket *sock = file->private_data; - size_t size = iov_length(iov, nr_segs); msg->msg_name = NULL; msg->msg_namelen = 0; msg->msg_control = NULL; msg->msg_controllen = 0; - iov_iter_init(&msg->msg_iter, WRITE, iov, nr_segs, size); + iov_iter_init(&msg->msg_iter, WRITE, iov, nr_segs, iocb->ki_nbytes); msg->msg_flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0; if (sock->type == SOCK_SEQPACKET) msg->msg_flags |= MSG_EOR; - return __sock_sendmsg(iocb, sock, msg, size); + return __sock_sendmsg(iocb, sock, msg, iocb->ki_nbytes); } static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov, |