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-rw-r--r--include/net/sock.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 65c3d62bfa5a..9d43736a869d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -604,6 +604,15 @@ static inline void sk_add_bind_node(struct sock *sk,
#define sk_for_each_bound(__sk, node, list) \
hlist_for_each_entry(__sk, node, list, sk_bind_node)
+static inline struct user_namespace *sk_user_ns(struct sock *sk)
+{
+ /* Careful only use this in a context where these parameters
+ * can not change and must all be valid, such as recvmsg from
+ * userspace.
+ */
+ return sk->sk_socket->file->f_cred->user_ns;
+}
+
/* Sock flags */
enum sock_flags {
SOCK_DEAD,