netdev - RFC PATCH 1/2] macvtap: A new sock zero copy flag

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Date:	Mon, 13 Sep 2010 13:47:01 -0700
From:	Shirley Ma <mashirle@...ibm.com>
To:	Arnd Bergmann <arnd@...db.de>, mst@...hat.com,
	Avi Kivity <avi@...hat.com>
Cc:	xiaohui.xin@...el.com, netdev@...r.kernel.org, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: RFC PATCH 1/2] macvtap: A new sock zero copy flag

/* Add a new flag to support sock zero copy from user space to kernel */

Signed-off-by: Shirley Ma <xma@...ibm.com>
---

 include/net/sock.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index adab9dc..80172de 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -543,6 +543,7 @@ enum sock_flags {
 	SOCK_TIMESTAMPING_SYS_HARDWARE, /* %SOF_TIMESTAMPING_SYS_HARDWARE */
 	SOCK_FASYNC, /* fasync() active */
 	SOCK_RXQ_OVFL,
+	SOCK_ZEROCOPY, /* zerocopy from user space to kernel */
 };
 
 static inline void sock_copy_flags(struct sock *nsk, struct sock *osk)


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