Commit fe34db06 authored by Jens Axboe's avatar Jens Axboe
Browse files

net: set FMODE_NOWAIT for sockets 



The socket read/write functions deal with O_NONBLOCK and IOCB_NOWAIT
just fine, so we can flag them as being FMODE_NOWAIT compliant. With
this, we can remove socket special casing in io_uring when checking
if a file type is sane for nonblocking IO, and it's also the defined
way to flag file types as such in the kernel.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Reviewed-by: default avatarPaolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20230509151910.183637-2-axboe@kernel.dk


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent f1fcbaa1

net/socket.c

+1 −0
Original line number Diff line number Diff line
@@ -471,6 +471,7 @@ struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname) 
		return file;

	}



	file->f_mode |= FMODE_NOWAIT;

	sock->file = file;

	file->private_data = sock;

	stream_open(SOCK_INODE(sock), file);