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-rw-r--r--sysdeps/unix/sysv/linux/bits/socket.h2
1 files changed, 2 insertions, 0 deletions
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