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authorDavid S. Miller <davem@davemloft.net>2008-09-23 00:50:13 -0700
committerDavid S. Miller <davem@davemloft.net>2008-09-23 00:50:13 -0700
commitcd07a8ea0dd4b204919b4c9ced8d9efdd9924495 (patch)
tree1b8e24706b806ea3070ad335d98cd7d2daa4d4c8 /include/net/tcp.h
parent1164f52a244204830c7625b3c22812781996d7b4 (diff)
downloadop-kernel-dev-cd07a8ea0dd4b204919b4c9ced8d9efdd9924495.zip
op-kernel-dev-cd07a8ea0dd4b204919b4c9ced8d9efdd9924495.tar.gz
tcp: Use SKB queue handling interfaces instead of by-hand versions.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
-rw-r--r--include/net/tcp.h40
1 files changed, 15 insertions, 25 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5c5327e..12c9b4f 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1181,49 +1181,45 @@ static inline void tcp_write_queue_purge(struct sock *sk)
static inline struct sk_buff *tcp_write_queue_head(struct sock *sk)
{
- struct sk_buff *skb = sk->sk_write_queue.next;
- if (skb == (struct sk_buff *) &sk->sk_write_queue)
- return NULL;
- return skb;
+ return skb_peek(&sk->sk_write_queue);
}
static inline struct sk_buff *tcp_write_queue_tail(struct sock *sk)
{
- struct sk_buff *skb = sk->sk_write_queue.prev;
- if (skb == (struct sk_buff *) &sk->sk_write_queue)
- return NULL;
- return skb;
+ return skb_peek_tail(&sk->sk_write_queue);
}
static inline struct sk_buff *tcp_write_queue_next(struct sock *sk, struct sk_buff *skb)
{
- return skb->next;
+ return skb_queue_next(&sk->sk_write_queue, skb);
}
#define tcp_for_write_queue(skb, sk) \
- for (skb = (sk)->sk_write_queue.next; \
- (skb != (struct sk_buff *)&(sk)->sk_write_queue); \
- skb = skb->next)
+ skb_queue_walk(&(sk)->sk_write_queue, skb)
#define tcp_for_write_queue_from(skb, sk) \
- for (; (skb != (struct sk_buff *)&(sk)->sk_write_queue);\
- skb = skb->next)
+ skb_queue_walk_from(&(sk)->sk_write_queue, skb)
#define tcp_for_write_queue_from_safe(skb, tmp, sk) \
- for (tmp = skb->next; \
- (skb != (struct sk_buff *)&(sk)->sk_write_queue); \
- skb = tmp, tmp = skb->next)
+ skb_queue_walk_from_safe(&(sk)->sk_write_queue, skb, tmp)
static inline struct sk_buff *tcp_send_head(struct sock *sk)
{
return sk->sk_send_head;
}
+static inline bool tcp_skb_is_last(const struct sock *sk,
+ const struct sk_buff *skb)
+{
+ return skb_queue_is_last(&sk->sk_write_queue, skb);
+}
+
static inline void tcp_advance_send_head(struct sock *sk, struct sk_buff *skb)
{
- sk->sk_send_head = skb->next;
- if (sk->sk_send_head == (struct sk_buff *)&sk->sk_write_queue)
+ if (tcp_skb_is_last(sk, skb))
sk->sk_send_head = NULL;
+ else
+ sk->sk_send_head = tcp_write_queue_next(sk, skb);
}
static inline void tcp_check_send_head(struct sock *sk, struct sk_buff *skb_unlinked)
@@ -1284,12 +1280,6 @@ static inline void tcp_unlink_write_queue(struct sk_buff *skb, struct sock *sk)
__skb_unlink(skb, &sk->sk_write_queue);
}
-static inline bool tcp_skb_is_last(const struct sock *sk,
- const struct sk_buff *skb)
-{
- return skb_queue_is_last(&sk->sk_write_queue, skb);
-}
-
static inline int tcp_write_queue_empty(struct sock *sk)
{
return skb_queue_empty(&sk->sk_write_queue);
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