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Commit f0088a50 authored by Denis Vlasenko's avatar Denis Vlasenko Committed by David S. Miller
Browse files

[NET]: deinline 200+ byte inlines in sock.h 



Sizes in bytes (allyesconfig, i386) and files where those inlines
are used:

238 sock_queue_rcv_skb 2.6.16/net/x25/x25_in.o
238 sock_queue_rcv_skb 2.6.16/net/rose/rose_in.o
238 sock_queue_rcv_skb 2.6.16/net/packet/af_packet.o
238 sock_queue_rcv_skb 2.6.16/net/netrom/nr_in.o
238 sock_queue_rcv_skb 2.6.16/net/llc/llc_sap.o
238 sock_queue_rcv_skb 2.6.16/net/llc/llc_conn.o
238 sock_queue_rcv_skb 2.6.16/net/irda/af_irda.o
238 sock_queue_rcv_skb 2.6.16/net/ipx/af_ipx.o
238 sock_queue_rcv_skb 2.6.16/net/ipv6/udp.o
238 sock_queue_rcv_skb 2.6.16/net/ipv6/raw.o
238 sock_queue_rcv_skb 2.6.16/net/ipv4/udp.o
238 sock_queue_rcv_skb 2.6.16/net/ipv4/raw.o
238 sock_queue_rcv_skb 2.6.16/net/ipv4/ipmr.o
238 sock_queue_rcv_skb 2.6.16/net/econet/econet.o
238 sock_queue_rcv_skb 2.6.16/net/econet/af_econet.o
238 sock_queue_rcv_skb 2.6.16/net/bluetooth/sco.o
238 sock_queue_rcv_skb 2.6.16/net/bluetooth/l2cap.o
238 sock_queue_rcv_skb 2.6.16/net/bluetooth/hci_sock.o
238 sock_queue_rcv_skb 2.6.16/net/ax25/ax25_in.o
238 sock_queue_rcv_skb 2.6.16/net/ax25/af_ax25.o
238 sock_queue_rcv_skb 2.6.16/net/appletalk/ddp.o
238 sock_queue_rcv_skb 2.6.16/drivers/net/pppoe.o

276 sk_receive_skb 2.6.16/net/decnet/dn_nsp_in.o
276 sk_receive_skb 2.6.16/net/dccp/ipv6.o
276 sk_receive_skb 2.6.16/net/dccp/ipv4.o
276 sk_receive_skb 2.6.16/net/dccp/dccp_ipv6.o
276 sk_receive_skb 2.6.16/drivers/net/pppoe.o

209 sk_dst_check 2.6.16/net/ipv6/ip6_output.o
209 sk_dst_check 2.6.16/net/ipv4/udp.o
209 sk_dst_check 2.6.16/net/decnet/dn_nsp_out.o

Large inlines with multiple callers:
Size  Uses Wasted Name and definition
===== ==== ====== ================================================
  238   21   4360 sock_queue_rcv_skb    include/net/sock.h
  109   10    801 sock_recv_timestamp   include/net/sock.h
  276    4    768 sk_receive_skb        include/net/sock.h
   94    8    518 __sk_dst_check        include/net/sock.h
  209    3    378 sk_dst_check  include/net/sock.h
  131    4    333 sk_setup_caps include/net/sock.h
  152    2    132 sk_stream_alloc_pskb  include/net/sock.h
  125    2    105 sk_stream_writequeue_purge    include/net/sock.h

Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1d181831

include/net/sock.h

+4 −87
Original line number Diff line number Diff line
@@ -938,28 +938,7 @@ static inline void sock_put(struct sock *sk) 
		sk_free(sk);

}



static inline int sk_receive_skb(struct sock *sk, struct sk_buff *skb)

{

	int rc = NET_RX_SUCCESS;



	if (sk_filter(sk, skb, 0))

		goto discard_and_relse;



	skb->dev = NULL;



	bh_lock_sock(sk);

	if (!sock_owned_by_user(sk))

		rc = sk->sk_backlog_rcv(sk, skb);

	else

		sk_add_backlog(sk, skb);

	bh_unlock_sock(sk);

out:

	sock_put(sk);

	return rc;

discard_and_relse:

	kfree_skb(skb);

	goto out;

}

extern int sk_receive_skb(struct sock *sk, struct sk_buff *skb);



/* Detach socket from process context.

 * Announce socket dead, detach it from wait queue and inode.
@@ -1044,33 +1023,9 @@ sk_dst_reset(struct sock *sk) 
	write_unlock(&sk->sk_dst_lock);

}



static inline struct dst_entry *

__sk_dst_check(struct sock *sk, u32 cookie)

{

	struct dst_entry *dst = sk->sk_dst_cache;



	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {

		sk->sk_dst_cache = NULL;

		dst_release(dst);

		return NULL;

	}



	return dst;

}



static inline struct dst_entry *

sk_dst_check(struct sock *sk, u32 cookie)

{

	struct dst_entry *dst = sk_dst_get(sk);



	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {

		sk_dst_reset(sk);

		dst_release(dst);

		return NULL;

	}

extern struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);



	return dst;

}

extern struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);



static inline void sk_setup_caps(struct sock *sk, struct dst_entry *dst)

{
@@ -1140,45 +1095,7 @@ extern void sk_reset_timer(struct sock *sk, struct timer_list* timer, 


extern void sk_stop_timer(struct sock *sk, struct timer_list* timer);



static inline int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)

{

	int err = 0;

	int skb_len;



	/* Cast skb->rcvbuf to unsigned... It's pointless, but reduces

	   number of warnings when compiling with -W --ANK

	 */

	if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=

	    (unsigned)sk->sk_rcvbuf) {

		err = -ENOMEM;

		goto out;

	}



	/* It would be deadlock, if sock_queue_rcv_skb is used

	   with socket lock! We assume that users of this

	   function are lock free.

	*/

	err = sk_filter(sk, skb, 1);

	if (err)

		goto out;



	skb->dev = NULL;

	skb_set_owner_r(skb, sk);



	/* Cache the SKB length before we tack it onto the receive

	 * queue.  Once it is added it no longer belongs to us and

	 * may be freed by other threads of control pulling packets

	 * from the queue.

	 */

	skb_len = skb->len;



	skb_queue_tail(&sk->sk_receive_queue, skb);



	if (!sock_flag(sk, SOCK_DEAD))

		sk->sk_data_ready(sk, skb_len);

out:

	return err;

}

extern int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);



static inline int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)

{

net/core/sock.c

+93 −0
Original line number Diff line number Diff line
@@ -187,6 +187,99 @@ static void sock_disable_timestamp(struct sock *sk) 
}





int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)

{

	int err = 0;

	int skb_len;



	/* Cast skb->rcvbuf to unsigned... It's pointless, but reduces

	   number of warnings when compiling with -W --ANK

	 */

	if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=

	    (unsigned)sk->sk_rcvbuf) {

		err = -ENOMEM;

		goto out;

	}



	/* It would be deadlock, if sock_queue_rcv_skb is used

	   with socket lock! We assume that users of this

	   function are lock free.

	*/

	err = sk_filter(sk, skb, 1);

	if (err)

		goto out;



	skb->dev = NULL;

	skb_set_owner_r(skb, sk);



	/* Cache the SKB length before we tack it onto the receive

	 * queue.  Once it is added it no longer belongs to us and

	 * may be freed by other threads of control pulling packets

	 * from the queue.

	 */

	skb_len = skb->len;



	skb_queue_tail(&sk->sk_receive_queue, skb);



	if (!sock_flag(sk, SOCK_DEAD))

		sk->sk_data_ready(sk, skb_len);

out:

	return err;

}

EXPORT_SYMBOL(sock_queue_rcv_skb);



int sk_receive_skb(struct sock *sk, struct sk_buff *skb)

{

	int rc = NET_RX_SUCCESS;



	if (sk_filter(sk, skb, 0))

		goto discard_and_relse;



	skb->dev = NULL;



	bh_lock_sock(sk);

	if (!sock_owned_by_user(sk))

		rc = sk->sk_backlog_rcv(sk, skb);

	else

		sk_add_backlog(sk, skb);

	bh_unlock_sock(sk);

out:

	sock_put(sk);

	return rc;

discard_and_relse:

	kfree_skb(skb);

	goto out;

}

EXPORT_SYMBOL(sk_receive_skb);



struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie)

{

	struct dst_entry *dst = sk->sk_dst_cache;



	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {

		sk->sk_dst_cache = NULL;

		dst_release(dst);

		return NULL;

	}



	return dst;

}

EXPORT_SYMBOL(__sk_dst_check);



struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie)

{

	struct dst_entry *dst = sk_dst_get(sk);



	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {

		sk_dst_reset(sk);

		dst_release(dst);

		return NULL;

	}



	return dst;

}

EXPORT_SYMBOL(sk_dst_check);



/*

 *	This is meant for all protocols to use and covers goings on

 *	at the socket level. Everything here is generic.