tcp: avoid indirect call to tcp_stream_memory_free() (1c5f2ced) · Commits · 戴 / test

include/net/sock.h

+6 −2

Original line number	Diff line number	Diff line
		@@ -60,7 +60,7 @@
		#include <linux/rculist_nulls.h>
		#include <linux/poll.h>
		#include <linux/sockptr.h>

		#include <linux/indirect_call_wrapper.h>
		#include <linux/atomic.h>
		#include <linux/refcount.h>
		#include <net/dst.h>
		@@ -1264,13 +1264,17 @@ static inline void sk_refcnt_debug_release(const struct sock *sk)
		#define sk_refcnt_debug_release(sk) do { } while (0)
		#endif /* SOCK_REFCNT_DEBUG */

		INDIRECT_CALLABLE_DECLARE(bool tcp_stream_memory_free(const struct sock *sk, int wake));

		static inline bool __sk_stream_memory_free(const struct sock *sk, int wake)
		{
		if (READ_ONCE(sk->sk_wmem_queued) >= READ_ONCE(sk->sk_sndbuf))
		return false;

		return sk->sk_prot->stream_memory_free ?
		sk->sk_prot->stream_memory_free(sk, wake) : true;
		INDIRECT_CALL_1(sk->sk_prot->stream_memory_free,
		tcp_stream_memory_free,
		sk, wake) : true;
		}

		static inline bool sk_stream_memory_free(const struct sock *sk)