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Diffstat (limited to 'include/net/af_vsock.h')
-rw-r--r--include/net/af_vsock.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h
index 0e7504a42925..e302c0e804d0 100644
--- a/include/net/af_vsock.h
+++ b/include/net/af_vsock.h
@@ -177,6 +177,9 @@ struct vsock_transport {
/* Read a single skb */
int (*read_skb)(struct vsock_sock *, skb_read_actor_t);
+
+ /* Zero-copy. */
+ bool (*msgzerocopy_allow)(void);
};
/**** CORE ****/
@@ -201,7 +204,6 @@ static inline bool __vsock_in_connected_table(struct vsock_sock *vsk)
return !list_empty(&vsk->connected_table);
}
-void vsock_release_pending(struct sock *pending);
void vsock_add_pending(struct sock *listener, struct sock *pending);
void vsock_remove_pending(struct sock *listener, struct sock *pending);
void vsock_enqueue_accept(struct sock *listener, struct sock *connected);
@@ -225,7 +227,6 @@ struct vsock_tap {
struct list_head list;
};
-int vsock_init_tap(void);
int vsock_add_tap(struct vsock_tap *vt);
int vsock_remove_tap(struct vsock_tap *vt);
void vsock_deliver_tap(struct sk_buff *build_skb(void *opaque), void *opaque);
@@ -243,4 +244,8 @@ static inline void __init vsock_bpf_build_proto(void)
{}
#endif
+static inline bool vsock_msgzerocopy_allow(const struct vsock_transport *t)
+{
+ return t->msgzerocopy_allow && t->msgzerocopy_allow();
+}
#endif /* __AF_VSOCK_H__ */