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Add MSG_ZEROCOPY from Linux 4.14 to bits/socket.h
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Wed, 15 Nov 2017 18:07:40 +0000
- Subject: Add MSG_ZEROCOPY from Linux 4.14 to bits/socket.h
- Authentication-results: sourceware.org; auth=none
This patch adds the new MSG_ZEROCOPY constant from Linux 4.14 to the
Linux bits/socket.h.
Tested for x86_64.
2017-11-15 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/bits/socket.h (MSG_ZEROCOPY): New enum
constant and macro.
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h
index a9d16e2..168a8e5 100644
--- a/sysdeps/unix/sysv/linux/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/bits/socket.h
@@ -237,6 +237,8 @@ enum
#define MSG_WAITFORONE MSG_WAITFORONE
MSG_BATCH = 0x40000, /* sendmmsg: more messages coming. */
#define MSG_BATCH MSG_BATCH
+ MSG_ZEROCOPY = 0x4000000, /* Use user data in kernel path. */
+#define MSG_ZEROCOPY MSG_ZEROCOPY
MSG_FASTOPEN = 0x20000000, /* Send data in TCP SYN. */
#define MSG_FASTOPEN MSG_FASTOPEN
--
Joseph S. Myers
joseph@codesourcery.com