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net/socket.c: fold do_sock_{read,write} into callers 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-01-30 16:12:56 -05:00
parent 1d10eb2f15
commit 6d65233020
1 changed files with 21 additions and 35 deletions
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56
net/socket.c
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@ -845,25 +845,11 @@ static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
return sock->ops->splice_read(sock, ppos, pipe, len, flags);
}
static ssize_t do_sock_read(struct msghdr *msg, struct kiocb *iocb,
struct file *file, const struct iovec *iov,
unsigned long nr_segs)
{
struct socket *sock = file->private_data;
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, iocb->ki_nbytes);
msg->msg_flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0;
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,
unsigned long nr_segs, loff_t pos)
{
struct file *file = iocb->ki_filp;
struct socket *sock = file->private_data;
struct msghdr msg;
if (pos != 0)
@ -872,36 +858,36 @@ static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
if (iocb->ki_nbytes == 0) /* Match SYS5 behaviour */
return 0;
return do_sock_read(&msg, iocb, iocb->ki_filp, 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, iocb->ki_nbytes);
msg.msg_flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0;
static ssize_t do_sock_write(struct msghdr *msg, struct kiocb *iocb,
struct file *file, const struct iovec *iov,
unsigned long nr_segs)
{
struct socket *sock = file->private_data;
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, 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, iocb->ki_nbytes);
return __sock_recvmsg(iocb, sock, &msg, iocb->ki_nbytes, msg.msg_flags);
}
static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
struct file *file = iocb->ki_filp;
struct socket *sock = file->private_data;
struct msghdr msg;
if (pos != 0)
return -ESPIPE;
return do_sock_write(&msg, iocb, iocb->ki_filp, 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, 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, iocb->ki_nbytes);
}
/*