Commit 1c5f2ced authored by Eric Dumazet's avatar Eric Dumazet Committed by Jakub Kicinski
Browse files

tcp: avoid indirect call to tcp_stream_memory_free() 



Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent d3cd4924

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)