diff options
| author | Jens Axboe <axboe@kernel.dk> | 2019-04-19 13:34:07 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-07-09 14:32:05 -0600 |
| commit | 0fa03c624d8fc9932d0f27c39a9deca6a37e0e17 (patch) | |
| tree | 50924290ab944d1a68dcacb69c04d100c6d3049b /include/linux/socket.h | |
| parent | 9e645e1105ca60fbbc6bddf2fd5ef7e57ed3dca8 (diff) | |
io_uring: add support for sendmsg()
This is done through IORING_OP_SENDMSG. There's a new sqe->msg_flags
for the flags argument, and the msghdr struct is passed in the
sqe->addr field.
We use MSG_DONTWAIT to force an inline fast path if sendmsg() doesn't
block, and punt to async execution if it would have.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/socket.h')
| -rw-r--r-- | include/linux/socket.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/socket.h b/include/linux/socket.h index b57cd8bf96e2..9d770ef3ced5 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -12,6 +12,7 @@ struct pid; struct cred; +struct socket; #define __sockaddr_check_size(size) \ BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage))) @@ -374,6 +375,9 @@ extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, unsigned int flags, bool forbid_cmsg_compat); +extern long __sys_sendmsg_sock(struct socket *sock, + struct user_msghdr __user *msg, + unsigned int flags); /* helpers which do the actual work for syscalls */ extern int __sys_recvfrom(int fd, void __user *ubuf, size_t size, |