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net: Document the kernel_recvmsg() function

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Signed-off-by: Martin Lucina <mato@kotelna.sk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Martin Lucina 2010-12-10 00:04:05 +00:00 committed by David S. Miller
parent e4fbce740f
commit c1249c0aae
1 changed files with 15 additions and 0 deletions
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15
net/socket.c
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@ -732,6 +732,21 @@ static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
return ret;
}
/**
* kernel_recvmsg - Receive a message from a socket (kernel space)
* @sock: The socket to receive the message from
* @msg: Received message
* @vec: Input s/g array for message data
* @num: Size of input s/g array
* @size: Number of bytes to read
* @flags: Message flags (MSG_DONTWAIT, etc...)
*
* On return the msg structure contains the scatter/gather array passed in the
* vec argument. The array is modified so that it consists of the unfilled
* portion of the original array.
*
* The returned value is the total number of bytes received, or an error.
*/
int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size, int flags)
{