From e993ffe3da4bcddea0536b03be1031bf35cd8d85 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Fri, 21 Oct 2022 11:16:39 +0100 Subject: net: flag sockets supporting msghdr originated zerocopy We need an efficient way in io_uring to check whether a socket supports zerocopy with msghdr provided ubuf_info. Add a new flag into the struct socket flags fields. Cc: # 6.0 Signed-off-by: Pavel Begunkov Acked-by: Jakub Kicinski Link: https://lore.kernel.org/r/3dafafab822b1c66308bb58a0ac738b1e3f53f74.1666346426.git.asml.silence@gmail.com Signed-off-by: Jens Axboe --- include/linux/net.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/net.h') diff --git a/include/linux/net.h b/include/linux/net.h index 711c3593c3b8..18d942bbdf6e 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -41,6 +41,7 @@ struct net; #define SOCK_NOSPACE 2 #define SOCK_PASSCRED 3 #define SOCK_PASSSEC 4 +#define SOCK_SUPPORT_ZC 5 #ifndef ARCH_HAS_SOCKET_TYPES /** -- cgit v1.2.3