X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2Fipv4%2Ffib_hash.c;h=c9b54bbea314acacdf1d5fae4644a7576a689528;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=4cbbdf8cbbeeb61ff52ac2c995ffc4f1c3d373c6;hpb=6a77f38946aaee1cd85eeec6cf4229b204c15071;p=linux-2.6.git

diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 4cbbdf8cb..c9b54bbea 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -29,6 +29,7 @@
 #include <linux/errno.h>
 #include <linux/in.h>
 #include <linux/inet.h>
+#include <linux/inetdevice.h>
 #include <linux/netdevice.h>
 #include <linux/if_arp.h>
 #include <linux/proc_fs.h>
@@ -45,8 +46,8 @@
 
 #include "fib_lookup.h"
 
-static kmem_cache_t *fn_hash_kmem;
-static kmem_cache_t *fn_alias_kmem;
+static kmem_cache_t *fn_hash_kmem __read_mostly;
+static kmem_cache_t *fn_alias_kmem __read_mostly;
 
 struct fib_node {
 	struct hlist_node	fn_hash;
@@ -93,6 +94,7 @@ static inline u32 fz_key(u32 dst, struct fn_zone *fz)
 }
 
 static DEFINE_RWLOCK(fib_hash_lock);
+static unsigned int fib_hash_genid;
 
 #define FZ_MAX_DIVISOR ((PAGE_SIZE<<MAX_ORDER) / sizeof(struct hlist_head))
 
@@ -181,6 +183,7 @@ static void fn_rehash_zone(struct fn_zone *fz)
 		fz->fz_hashmask = new_hashmask;
 		fz->fz_divisor = new_divisor;
 		fn_rebuild_zone(fz, old_ht, old_divisor);
+		fib_hash_genid++;
 		write_unlock_bh(&fib_hash_lock);
 
 		fz_hash_free(old_ht, old_divisor);
@@ -236,6 +239,7 @@ fn_new_zone(struct fn_hash *table, int z)
 		table->fn_zones[i]->fz_next = fz;
 	}
 	table->fn_zones[z] = fz;
+	fib_hash_genid++;
 	write_unlock_bh(&fib_hash_lock);
 	return fz;
 }
@@ -261,6 +265,7 @@ fn_hash_lookup(struct fib_table *tb, const struct flowi *flp, struct fib_result
 
 			err = fib_semantic_match(&f->fn_alias,
 						 flp, res,
+						 f->fn_key, fz->fz_mask,
 						 fz->fz_order);
 			if (err <= 0)
 				goto out;
@@ -451,6 +456,7 @@ fn_hash_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
 			fa->fa_scope = r->rtm_scope;
 			state = fa->fa_state;
 			fa->fa_state &= ~FA_S_ACCESSED;
+			fib_hash_genid++;
 			write_unlock_bh(&fib_hash_lock);
 
 			fib_release_info(fi_drop);
@@ -515,6 +521,7 @@ fn_hash_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
 		fib_insert_node(fz, new_f);
 	list_add_tail(&new_fa->fa_list,
 		 (fa ? &fa->fa_list : &f->fn_alias));
+	fib_hash_genid++;
 	write_unlock_bh(&fib_hash_lock);
 
 	if (new_f)
@@ -600,6 +607,7 @@ fn_hash_delete(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
 			hlist_del(&f->fn_hash);
 			kill_fn = 1;
 		}
+		fib_hash_genid++;
 		write_unlock_bh(&fib_hash_lock);
 
 		if (fa->fa_state & FA_S_ACCESSED)
@@ -637,6 +645,7 @@ static int fn_flush_list(struct fn_zone *fz, int idx)
 					hlist_del(&f->fn_hash);
 					kill_f = 1;
 				}
+				fib_hash_genid++;
 				write_unlock_bh(&fib_hash_lock);
 
 				fn_free_alias(fa);
@@ -695,7 +704,8 @@ fn_hash_dump_bucket(struct sk_buff *skb, struct netlink_callback *cb,
 					  &f->fn_key,
 					  fz->fz_order,
 					  fa->fa_tos,
-					  fa->fa_info) < 0) {
+					  fa->fa_info,
+					  NLM_F_MULTI) < 0) {
 				cb->args[3] = i;
 				return -1;
 			}
@@ -801,6 +811,9 @@ struct fib_iter_state {
 	struct hlist_head *hash_head;
 	struct fib_node *fn;
 	struct fib_alias *fa;
+	loff_t pos;
+	unsigned int genid;
+	int valid;
 };
 
 static struct fib_alias *fib_get_first(struct seq_file *seq)
@@ -812,6 +825,9 @@ static struct fib_alias *fib_get_first(struct seq_file *seq)
 	iter->hash_head = NULL;
 	iter->fn        = NULL;
 	iter->fa        = NULL;
+	iter->pos	= 0;
+	iter->genid	= fib_hash_genid;
+	iter->valid	= 1;
 
 	for (iter->zone = table->fn_zone_list; iter->zone;
 	     iter->zone = iter->zone->fz_next) {
@@ -916,12 +932,20 @@ static struct fib_alias *fib_get_next(struct seq_file *seq)
 		}
 	}
 out:
+	iter->pos++;
 	return fa;
 }
 
 static struct fib_alias *fib_get_idx(struct seq_file *seq, loff_t pos)
 {
-	struct fib_alias *fa = fib_get_first(seq);
+	struct fib_iter_state *iter = seq->private;
+	struct fib_alias *fa;
+	
+	if (iter->valid && pos >= iter->pos && iter->genid == fib_hash_genid) {
+		fa   = iter->fa;
+		pos -= iter->pos;
+	} else
+		fa = fib_get_first(seq);
 
 	if (fa)
 		while (pos && (fa = fib_get_next(seq)))
@@ -952,7 +976,7 @@ static void fib_seq_stop(struct seq_file *seq, void *v)
 
 static unsigned fib_flag_trans(int type, u32 mask, struct fib_info *fi)
 {
-	static unsigned type2flags[RTN_MAX + 1] = {
+	static const unsigned type2flags[RTN_MAX + 1] = {
 		[7] = RTF_REJECT, [8] = RTF_REJECT,
 	};
 	unsigned flags = type2flags[type];