1 files changed, 25 insertions, 35 deletions

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index e3a0bcfa5df..f3a61ebd8d6 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -233,7 +233,7 @@ static inline unsigned long make_jiffies(long secs)
 static void xfrm_timer_handler(unsigned long data)
 {
 	struct xfrm_state *x = (struct xfrm_state*)data;
-	unsigned long now = (unsigned long)xtime.tv_sec;
+	unsigned long now = get_seconds();
 	long next = LONG_MAX;
 	int warn = 0;
 	int err = 0;
@@ -326,7 +326,7 @@ struct xfrm_state *xfrm_state_alloc(void)
 		init_timer(&x->rtimer);
 		x->rtimer.function = xfrm_replay_timer_handler;
 		x->rtimer.data     = (unsigned long)x;
-		x->curlft.add_time = (unsigned long)xtime.tv_sec;
+		x->curlft.add_time = get_seconds();
 		x->lft.soft_byte_limit = XFRM_INF;
 		x->lft.soft_packet_limit = XFRM_INF;
 		x->lft.hard_byte_limit = XFRM_INF;
@@ -421,6 +421,16 @@ restart:
 }
 EXPORT_SYMBOL(xfrm_state_flush);
 
+void xfrm_sad_getinfo(struct xfrm_sadinfo *si)
+{
+	spin_lock_bh(&xfrm_state_lock);
+	si->sadcnt = xfrm_state_num;
+	si->sadhcnt = xfrm_state_hmask;
+	si->sadhmcnt = xfrm_state_hashmax;
+	spin_unlock_bh(&xfrm_state_lock);
+}
+EXPORT_SYMBOL(xfrm_sad_getinfo);
+
 static int
 xfrm_init_tempsel(struct xfrm_state *x, struct flowi *fl,
 		  struct xfrm_tmpl *tmpl,
@@ -458,7 +468,7 @@ static struct xfrm_state *__xfrm_state_lookup(xfrm_address_t *daddr, __be32 spi,
 					     x->id.daddr.a6))
 				continue;
 			break;
-		};
+		}
 
 		xfrm_state_hold(x);
 		return x;
@@ -493,7 +503,7 @@ static struct xfrm_state *__xfrm_state_lookup_byaddr(xfrm_address_t *daddr, xfrm
 					     x->props.saddr.a6))
 				continue;
 			break;
-		};
+		}
 
 		xfrm_state_hold(x);
 		return x;
@@ -722,7 +732,7 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re
 					     (struct in6_addr *)saddr))
 				continue;
 			break;
-		};
+		}
 
 		xfrm_state_hold(x);
 		return x;
@@ -755,7 +765,7 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re
 			ipv6_addr_copy((struct in6_addr *)x->id.daddr.a6,
 				       (struct in6_addr *)daddr);
 			break;
-		};
+		}
 
 		x->km.state = XFRM_STATE_ACQ;
 		x->id.proto = proto;
@@ -1051,7 +1061,7 @@ EXPORT_SYMBOL(xfrm_state_update);
 int xfrm_state_check_expire(struct xfrm_state *x)
 {
 	if (!x->curlft.use_time)
-		x->curlft.use_time = (unsigned long)xtime.tv_sec;
+		x->curlft.use_time = get_seconds();
 
 	if (x->km.state != XFRM_STATE_VALID)
 		return -EINVAL;
@@ -1667,37 +1677,17 @@ void xfrm_state_delete_tunnel(struct xfrm_state *x)
 }
 EXPORT_SYMBOL(xfrm_state_delete_tunnel);
 
-/*
- * This function is NOT optimal.  For example, with ESP it will give an
- * MTU that's usually two bytes short of being optimal.  However, it will
- * usually give an answer that's a multiple of 4 provided the input is
- * also a multiple of 4.
- */
 int xfrm_state_mtu(struct xfrm_state *x, int mtu)
 {
-	int res = mtu;
-
-	res -= x->props.header_len;
-
-	for (;;) {
-		int m = res;
-
-		if (m < 68)
-			return 68;
-
-		spin_lock_bh(&x->lock);
-		if (x->km.state == XFRM_STATE_VALID &&
-		    x->type && x->type->get_max_size)
-			m = x->type->get_max_size(x, m);
-		else
-			m += x->props.header_len;
-		spin_unlock_bh(&x->lock);
-
-		if (m <= mtu)
-			break;
-		res -= (m - mtu);
-	}
+	int res;
 
+	spin_lock_bh(&x->lock);
+	if (x->km.state == XFRM_STATE_VALID &&
+	    x->type && x->type->get_mtu)
+		res = x->type->get_mtu(x, mtu);
+	else
+		res = mtu;
+	spin_unlock_bh(&x->lock);
 	return res;
 }