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net: add sk_stream_is_writeable() helper

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Several call sites use the hardcoded following condition :

sk_stream_wspace(sk) >= sk_stream_min_wspace(sk)

Lets use a helper because TCP_NOTSENT_LOWAT support will change this
condition for TCP sockets.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2013-07-22 20:26:31 -07:00
committed by David S. Miller
parent 4d58c02520
commit 64dc61306c
7 changed files with 12 additions and 8 deletions
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4
include/net/sock.h
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@@ -1088,6 +1088,10 @@ static inline struct cg_proto *parent_cg_proto(struct proto *proto,
}
#endif
static inline bool sk_stream_is_writeable(const struct sock *sk)
{
return sk_stream_wspace(sk) >= sk_stream_min_wspace(sk);
}
static inline bool sk_has_memory_pressure(const struct sock *sk)
{