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net-timestamp: optimize sock_tx_timestamp default path

Browse source 
Few packets have timestamping enabled. Exit sock_tx_timestamp quickly
in this common case.

Signed-off-by: Willem de Bruijn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Willem de Bruijn 2014-09-08 19:58:58 -04:00 • committed by David S. Miller
commit 67cc0d4077
2 changed files with 11 additions and 6 deletions
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7
net/socket.c
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@ -610,7 +610,7 @@ void sock_release(struct socket *sock)
}
EXPORT_SYMBOL(sock_release);
void sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags)
void __sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags)
{
u8 flags = *tx_flags;
@ -626,12 +626,9 @@ void sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags)
if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_ACK)
flags |= SKBTX_ACK_TSTAMP;
if (sock_flag(sk, SOCK_WIFI_STATUS))
flags |= SKBTX_WIFI_STATUS;
*tx_flags = flags;
}
EXPORT_SYMBOL(sock_tx_timestamp);
EXPORT_SYMBOL(__sock_tx_timestamp);
static inline int __sock_sendmsg_nosec(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t size)