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net: remove cmsg restriction from io_uring based send/recvmsg calls

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No need to restrict these anymore, as the worker threads are direct
clones of the original task. Hence we know for a fact that we can
support anything that the regular task can.

Since the only user of proto_ops->flags was to flag PROTO_CMSG_DATA_ONLY,
kill the member and the flag definition too.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe
2021-02-17 10:14:21 -07:00
parent 2587890b5e
commit e54937963f
4 changed files with 0 additions and 15 deletions
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10
net/socket.c
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@@ -2411,10 +2411,6 @@ static int ___sys_sendmsg(struct socket *sock, struct user_msghdr __user *msg,
long __sys_sendmsg_sock(struct socket *sock, struct msghdr *msg,
unsigned int flags)
{
/* disallow ancillary data requests from this path */
if (msg->msg_control || msg->msg_controllen)
return -EINVAL;
return ____sys_sendmsg(sock, msg, flags, NULL, 0);
}
@@ -2623,12 +2619,6 @@ long __sys_recvmsg_sock(struct socket *sock, struct msghdr *msg,
struct user_msghdr __user *umsg,
struct sockaddr __user *uaddr, unsigned int flags)
{
if (msg->msg_control || msg->msg_controllen) {
/* disallow ancillary data reqs unless cmsg is plain data */
if (!(sock->ops->flags & PROTO_CMSG_DATA_ONLY))
return -EINVAL;
}
return ____sys_recvmsg(sock, msg, umsg, uaddr, flags, 0);
}