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[TCP]: Splice receive support.

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Support for network splice receive.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jens Axboe 2007-11-06 23:30:13 -08:00 • committed by David S. Miller
parent bbdfc2f706
commit 9c55e01c0c
7 changed files with 401 additions and 0 deletions
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13
net/socket.c
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@ -112,6 +112,9 @@ static long compat_sock_ioctl(struct file *file,
static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
* Socket files have a set of 'special' operations as well as the generic file ones. These don't appear
@ -134,6 +137,7 @@ static const struct file_operations socket_file_ops = {
.fasync = sock_fasync,
.sendpage = sock_sendpage,
.splice_write = generic_splice_sendpage,
.splice_read = sock_splice_read,
};
/*
@ -691,6 +695,15 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
return sock->ops->sendpage(sock, page, offset, size, flags);
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
return sock->ops->splice_read(sock, ppos, pipe, len, flags);
}
static struct sock_iocb *alloc_sock_iocb(struct kiocb *iocb,
struct sock_iocb *siocb)
{