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Commit a2a385d6 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

tcp: bool conversions 



bool conversions where possible.

__inline__ -> inline

space cleanups

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e005d193

include/net/tcp.h

+28 −28
Original line number Diff line number Diff line
@@ -263,14 +263,14 @@ extern int tcp_memory_pressure; 
 * and worry about wraparound (automatic with unsigned arithmetic).

 */



static inline int before(__u32 seq1, __u32 seq2)

static inline bool before(__u32 seq1, __u32 seq2)

{

        return (__s32)(seq1-seq2) < 0;

}

#define after(seq2, seq1) 	before(seq1, seq2)



/* is s2<=s1<=s3 ? */

static inline int between(__u32 seq1, __u32 seq2, __u32 seq3)

static inline bool between(__u32 seq1, __u32 seq2, __u32 seq3)

{

	return seq3 - seq2 >= seq1 - seq2;

}
@@ -305,7 +305,7 @@ static inline void tcp_synq_overflow(struct sock *sk) 
}



/* syncookies: no recent synqueue overflow on this listening socket? */

static inline int tcp_synq_no_recent_overflow(const struct sock *sk)

static inline bool tcp_synq_no_recent_overflow(const struct sock *sk)

{

	unsigned long last_overflow = tcp_sk(sk)->rx_opt.ts_recent_stamp;

	return time_after(jiffies, last_overflow + TCP_TIMEOUT_FALLBACK);
@@ -383,7 +383,7 @@ extern struct sock * tcp_check_req(struct sock *sk,struct sk_buff *skb, 
				   struct request_sock **prev);

extern int tcp_child_process(struct sock *parent, struct sock *child,

			     struct sk_buff *skb);

extern int tcp_use_frto(struct sock *sk);

extern bool tcp_use_frto(struct sock *sk);

extern void tcp_enter_frto(struct sock *sk);

extern void tcp_enter_loss(struct sock *sk, int how);

extern void tcp_clear_retrans(struct tcp_sock *tp);
@@ -470,7 +470,7 @@ static inline __u32 cookie_v6_init_sequence(struct sock *sk, 


extern void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss,

				      int nonagle);

extern int tcp_may_send_now(struct sock *sk);

extern bool tcp_may_send_now(struct sock *sk);

extern int tcp_retransmit_skb(struct sock *, struct sk_buff *);

extern void tcp_retransmit_timer(struct sock *sk);

extern void tcp_xmit_retransmit_queue(struct sock *);
@@ -484,7 +484,7 @@ extern int tcp_write_wakeup(struct sock *); 
extern void tcp_send_fin(struct sock *sk);

extern void tcp_send_active_reset(struct sock *sk, gfp_t priority);

extern int tcp_send_synack(struct sock *);

extern int tcp_syn_flood_action(struct sock *sk,

extern bool tcp_syn_flood_action(struct sock *sk,

				 const struct sk_buff *skb,

				 const char *proto);

extern void tcp_push_one(struct sock *, unsigned int mss_now);
@@ -794,12 +794,12 @@ static inline int tcp_is_sack(const struct tcp_sock *tp) 
	return tp->rx_opt.sack_ok;

}



static inline int tcp_is_reno(const struct tcp_sock *tp)

static inline bool tcp_is_reno(const struct tcp_sock *tp)

{

	return !tcp_is_sack(tp);

}



static inline int tcp_is_fack(const struct tcp_sock *tp)

static inline bool tcp_is_fack(const struct tcp_sock *tp)

{

	return tp->rx_opt.sack_ok & TCP_FACK_ENABLED;

}
@@ -901,7 +901,7 @@ static inline u32 tcp_wnd_end(const struct tcp_sock *tp) 
{

	return tp->snd_una + tp->snd_wnd;

}

extern int tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight);

extern bool tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight);



static inline void tcp_minshall_update(struct tcp_sock *tp, unsigned int mss,

				       const struct sk_buff *skb)
@@ -944,7 +944,7 @@ static inline __sum16 __tcp_checksum_complete(struct sk_buff *skb) 
	return __skb_checksum_complete(skb);

}



static inline int tcp_checksum_complete(struct sk_buff *skb)

static inline bool tcp_checksum_complete(struct sk_buff *skb)

{

	return !skb_csum_unnecessary(skb) &&

		__tcp_checksum_complete(skb);
@@ -974,12 +974,12 @@ static inline void tcp_prequeue_init(struct tcp_sock *tp) 
 *

 * NOTE: is this not too big to inline?

 */

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

static inline bool tcp_prequeue(struct sock *sk, struct sk_buff *skb)

{

	struct tcp_sock *tp = tcp_sk(sk);



	if (sysctl_tcp_low_latency || !tp->ucopy.task)

		return 0;

		return false;



	__skb_queue_tail(&tp->ucopy.prequeue, skb);

	tp->ucopy.memory += skb->truesize;
@@ -1003,7 +1003,7 @@ static inline int tcp_prequeue(struct sock *sk, struct sk_buff *skb) 
						  (3 * tcp_rto_min(sk)) / 4,

						  TCP_RTO_MAX);

	}

	return 1;

	return true;

}
@@ -1108,28 +1108,28 @@ static inline int tcp_fin_time(const struct sock *sk) 
	return fin_timeout;

}



static inline int tcp_paws_check(const struct tcp_options_received *rx_opt,

static inline bool tcp_paws_check(const struct tcp_options_received *rx_opt,

				  int paws_win)

{

	if ((s32)(rx_opt->ts_recent - rx_opt->rcv_tsval) <= paws_win)

		return 1;

		return true;

	if (unlikely(get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS))

		return 1;

		return true;

	/*

	 * Some OSes send SYN and SYNACK messages with tsval=0 tsecr=0,

	 * then following tcp messages have valid values. Ignore 0 value,

	 * or else 'negative' tsval might forbid us to accept their packets.

	 */

	if (!rx_opt->ts_recent)

		return 1;

	return 0;

		return true;

	return false;

}



static inline int tcp_paws_reject(const struct tcp_options_received *rx_opt,

static inline bool tcp_paws_reject(const struct tcp_options_received *rx_opt,

				   int rst)

{

	if (tcp_paws_check(rx_opt, 0))

		return 0;

		return false;



	/* RST segments are not recommended to carry timestamp,

	   and, if they do, it is recommended to ignore PAWS because
@@ -1144,8 +1144,8 @@ static inline int tcp_paws_reject(const struct tcp_options_received *rx_opt, 
	   However, we can relax time bounds for RST segments to MSL.

	 */

	if (rst && get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_MSL)

		return 0;

	return 1;

		return false;

	return true;

}



static inline void tcp_mib_init(struct net *net)
@@ -1383,7 +1383,7 @@ static inline void tcp_unlink_write_queue(struct sk_buff *skb, struct sock *sk) 
	__skb_unlink(skb, &sk->sk_write_queue);

}



static inline int tcp_write_queue_empty(struct sock *sk)

static inline bool tcp_write_queue_empty(struct sock *sk)

{

	return skb_queue_empty(&sk->sk_write_queue);

}
@@ -1440,7 +1440,7 @@ static inline void tcp_highest_sack_combine(struct sock *sk, 
/* Determines whether this is a thin stream (which may suffer from

 * increased latency). Used to trigger latency-reducing mechanisms.

 */

static inline unsigned int tcp_stream_is_thin(struct tcp_sock *tp)

static inline bool tcp_stream_is_thin(struct tcp_sock *tp)

{

	return tp->packets_out < 4 && !tcp_in_initial_slowstart(tp);

}

net/ipv4/tcp.c

+10 −10
Original line number Diff line number Diff line
@@ -593,7 +593,7 @@ static inline void tcp_mark_push(struct tcp_sock *tp, struct sk_buff *skb) 
	tp->pushed_seq = tp->write_seq;

}



static inline int forced_push(const struct tcp_sock *tp)

static inline bool forced_push(const struct tcp_sock *tp)

{

	return after(tp->write_seq, tp->pushed_seq + (tp->max_window >> 1));

}
@@ -1082,7 +1082,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, 
				if (err)

					goto do_fault;

			} else {

				int merge = 0;

				bool merge = false;

				int i = skb_shinfo(skb)->nr_frags;

				struct page *page = sk->sk_sndmsg_page;

				int off;
@@ -1096,7 +1096,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, 
				    off != PAGE_SIZE) {

					/* We can extend the last page

					 * fragment. */

					merge = 1;

					merge = true;

				} else if (i == MAX_SKB_FRAGS || !sg) {

					/* Need to add new fragment and cannot

					 * do this because interface is non-SG,
@@ -1293,7 +1293,7 @@ static int tcp_peek_sndq(struct sock *sk, struct msghdr *msg, int len) 
void tcp_cleanup_rbuf(struct sock *sk, int copied)

{

	struct tcp_sock *tp = tcp_sk(sk);

	int time_to_ack = 0;

	bool time_to_ack = false;



	struct sk_buff *skb = skb_peek(&sk->sk_receive_queue);
@@ -1319,7 +1319,7 @@ void tcp_cleanup_rbuf(struct sock *sk, int copied) 
		      ((icsk->icsk_ack.pending & ICSK_ACK_PUSHED) &&

		       !icsk->icsk_ack.pingpong)) &&

		      !atomic_read(&sk->sk_rmem_alloc)))

			time_to_ack = 1;

			time_to_ack = true;

	}



	/* We send an ACK if we can now advertise a non-zero window
@@ -1341,7 +1341,7 @@ void tcp_cleanup_rbuf(struct sock *sk, int copied) 
			 * "Lots" means "at least twice" here.

			 */

			if (new_window && new_window >= 2 * rcv_window_now)

				time_to_ack = 1;

				time_to_ack = true;

		}

	}

	if (time_to_ack)
@@ -2171,7 +2171,7 @@ EXPORT_SYMBOL(tcp_close); 


/* These states need RST on ABORT according to RFC793 */



static inline int tcp_need_reset(int state)

static inline bool tcp_need_reset(int state)

{

	return (1 << state) &

	       (TCPF_ESTABLISHED | TCPF_CLOSE_WAIT | TCPF_FIN_WAIT1 |
@@ -2245,7 +2245,7 @@ int tcp_disconnect(struct sock *sk, int flags) 
}

EXPORT_SYMBOL(tcp_disconnect);



static inline int tcp_can_repair_sock(struct sock *sk)

static inline bool tcp_can_repair_sock(const struct sock *sk)

{

	return capable(CAP_NET_ADMIN) &&

		((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_ESTABLISHED));
@@ -3172,13 +3172,13 @@ __tcp_alloc_md5sig_pool(struct sock *sk) 
struct tcp_md5sig_pool __percpu *tcp_alloc_md5sig_pool(struct sock *sk)

{

	struct tcp_md5sig_pool __percpu *pool;

	int alloc = 0;

	bool alloc = false;



retry:

	spin_lock_bh(&tcp_md5sig_pool_lock);

	pool = tcp_md5sig_pool;

	if (tcp_md5sig_users++ == 0) {

		alloc = 1;

		alloc = true;

		spin_unlock_bh(&tcp_md5sig_pool_lock);

	} else if (!pool) {

		tcp_md5sig_users--;

net/ipv4/tcp_cong.c

+3 −3
Original line number Diff line number Diff line
@@ -280,19 +280,19 @@ int tcp_set_congestion_control(struct sock *sk, const char *name) 
/* RFC2861 Check whether we are limited by application or congestion window

 * This is the inverse of cwnd check in tcp_tso_should_defer

 */

int tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight)

bool tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight)

{

	const struct tcp_sock *tp = tcp_sk(sk);

	u32 left;



	if (in_flight >= tp->snd_cwnd)

		return 1;

		return true;



	left = tp->snd_cwnd - in_flight;

	if (sk_can_gso(sk) &&

	    left * sysctl_tcp_tso_win_divisor < tp->snd_cwnd &&

	    left * tp->mss_cache < sk->sk_gso_max_size)

		return 1;

		return true;

	return left <= tcp_max_tso_deferred_mss(tp);

}

EXPORT_SYMBOL_GPL(tcp_is_cwnd_limited);

net/ipv4/tcp_hybla.c

+5 −5
Original line number Diff line number Diff line
@@ -15,7 +15,7 @@ 


/* Tcp Hybla structure. */

struct hybla {

	u8    hybla_en;

	bool  hybla_en;

	u32   snd_cwnd_cents; /* Keeps increment values when it is <1, <<7 */

	u32   rho;	      /* Rho parameter, integer part  */

	u32   rho2;	      /* Rho * Rho, integer part */
@@ -24,8 +24,7 @@ struct hybla { 
	u32   minrtt;	      /* Minimum smoothed round trip time value seen */

};



/* Hybla reference round trip time (default= 1/40 sec = 25 ms),

   expressed in jiffies */

/* Hybla reference round trip time (default= 1/40 sec = 25 ms), in ms */

static int rtt0 = 25;

module_param(rtt0, int, 0644);

MODULE_PARM_DESC(rtt0, "reference rout trip time (ms)");
@@ -52,7 +51,7 @@ static void hybla_init(struct sock *sk) 
	ca->rho_3ls = 0;

	ca->rho2_7ls = 0;

	ca->snd_cwnd_cents = 0;

	ca->hybla_en = 1;

	ca->hybla_en = true;

	tp->snd_cwnd = 2;

	tp->snd_cwnd_clamp = 65535;
@@ -67,6 +66,7 @@ static void hybla_init(struct sock *sk) 
static void hybla_state(struct sock *sk, u8 ca_state)

{

	struct hybla *ca = inet_csk_ca(sk);



	ca->hybla_en = (ca_state == TCP_CA_Open);

}

net/ipv4/tcp_input.c

+108 −106

File changed.

Preview size limit exceeded, changes collapsed.