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Diffstat (limited to 'include/net/sock.h')
-rw-r--r--include/net/sock.h25
1 files changed, 24 insertions, 1 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 95e157eee8d9..51185222aac2 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1850,8 +1850,17 @@ static inline struct sock *sk_clone_lock(const struct sock *sk, const gfp_t prio
struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force,
gfp_t priority);
-void __sock_wfree(struct sk_buff *skb);
void sock_wfree(struct sk_buff *skb);
+void __sock_wfree(struct sk_buff *skb);
+void tcp_wfree(struct sk_buff *skb);
+
+static inline bool is_skb_wmem(const struct sk_buff *skb)
+{
+ return skb->destructor == sock_wfree ||
+ (IS_ENABLED(CONFIG_INET) && skb->destructor == __sock_wfree) ||
+ (IS_ENABLED(CONFIG_INET) && skb->destructor == tcp_wfree);
+}
+
struct sk_buff *sock_omalloc(struct sock *sk, unsigned long size,
gfp_t priority);
void skb_orphan_partial(struct sk_buff *skb);
@@ -2253,6 +2262,20 @@ sk_dst_reset(struct sock *sk)
sk_dst_set(sk, NULL);
}
+/* Re-roll the socket txhash. On a rehash, IPv6 also drops the cached route
+ * so the next transmit re-selects an ECMP path; IPv4 keeps its route, since
+ * IPv4 ECMP path selection does not use sk_txhash.
+ */
+static inline bool __sk_rethink_txhash_reset_dst(struct sock *sk)
+{
+ if (sk_rethink_txhash(sk)) {
+ if (sk->sk_family == AF_INET6)
+ __sk_dst_reset(sk);
+ return true;
+ }
+ return false;
+}
+
struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);
struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);