From: Joseph Myers <joseph@codesourcery.com>
To: <libc-alpha@sourceware.org>
Subject: Add MSG_ZEROCOPY from Linux 4.14 to bits/socket.h
Date: Wed, 15 Nov 2017 18:07:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.20.1711151807210.15924@digraph.polyomino.org.uk> (raw)
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
next reply other threads:[~2017-11-15 18:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-15 18:07 Joseph Myers [this message]
2017-11-15 18:39 ` Florian Weimer
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