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-rw-r--r--include/net/sock.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 0f778d3c4300..fe1a0bc25cd3 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -294,6 +294,7 @@ struct sock_common {
* @sk_stamp: time stamp of last packet received
* @sk_tsflags: SO_TIMESTAMPING socket options
* @sk_tskey: counter to disambiguate concurrent tstamp requests
+ * @sk_zckey: counter to order MSG_ZEROCOPY notifications
* @sk_socket: Identd and reporting IO signals
* @sk_user_data: RPC layer private data
* @sk_frag: cached page frag
@@ -462,6 +463,7 @@ struct sock {
u16 sk_tsflags;
u8 sk_shutdown;
u32 sk_tskey;
+ atomic_t sk_zckey;
struct socket *sk_socket;
void *sk_user_data;
#ifdef CONFIG_SECURITY