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-rw-r--r--ChangeLog3
-rw-r--r--sysdeps/unix/sysv/linux/bits/socket.h2
2 files changed, 5 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 6ebdeedc24..f8f46ae45d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
2017-11-15 Joseph Myers <joseph@codesourcery.com>
+ * sysdeps/unix/sysv/linux/bits/socket.h (MSG_ZEROCOPY): New enum
+ constant and macro.
+
* sysdeps/unix/sysv/linux/bits/mman-linux.h
[__USE_MISC] (MADV_WIPEONFORK): New macro.
[__USE_MISC] (MADV_KEEPONFORK): Likewise.
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h
index a9d16e2bc8..168a8e5ccb 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