From 7cc482634f1f1e1db5401007658c8e8d6cf1617d Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 9 Feb 2007 16:22:57 -0800 Subject: [PATCH] [IPV6]: Convert ipv6 route to use the new dst_entry 'next' pointer This patch removes the next pointer from 'struct rt6_info.u' union, and renames u.next to u.dst.rt6_next. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/ip6_fib.h | 1 - net/ipv6/ip6_fib.c | 20 ++++++++++---------- net/ipv6/route.c | 20 ++++++++++---------- 3 files changed, 20 insertions(+), 21 deletions(-) diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index 7be4f4e3a0..9eda572a2a 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -83,7 +83,6 @@ struct rt6_info { union { struct dst_entry dst; - struct rt6_info *next; } u; struct inet6_dev *rt6i_idev; diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index f90ab52333..8c9024890b 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -298,7 +298,7 @@ static int fib6_dump_node(struct fib6_walker_t *w) int res; struct rt6_info *rt; - for (rt = w->leaf; rt; rt = rt->u.next) { + for (rt = w->leaf; rt; rt = rt->u.dst.rt6_next) { res = rt6_dump_route(rt, w->args); if (res < 0) { /* Frame is full, suspend walking */ @@ -624,11 +624,11 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt, fn->leaf == &ip6_null_entry && !(rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) ){ fn->leaf = rt; - rt->u.next = NULL; + rt->u.dst.rt6_next = NULL; goto out; } - for (iter = fn->leaf; iter; iter=iter->u.next) { + for (iter = fn->leaf; iter; iter=iter->u.dst.rt6_next) { /* * Search for duplicates */ @@ -656,7 +656,7 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt, if (iter->rt6i_metric > rt->rt6i_metric) break; - ins = &iter->u.next; + ins = &iter->u.dst.rt6_next; } /* @@ -664,7 +664,7 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt, */ out: - rt->u.next = iter; + rt->u.dst.rt6_next = iter; *ins = rt; rt->rt6i_node = fn; atomic_inc(&rt->rt6i_ref); @@ -1105,7 +1105,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp, RT6_TRACE("fib6_del_route\n"); /* Unlink it */ - *rtp = rt->u.next; + *rtp = rt->u.dst.rt6_next; rt->rt6i_node = NULL; rt6_stats.fib_rt_entries--; rt6_stats.fib_discarded_routes++; @@ -1115,14 +1115,14 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp, FOR_WALKERS(w) { if (w->state == FWS_C && w->leaf == rt) { RT6_TRACE("walker %p adjusted by delroute\n", w); - w->leaf = rt->u.next; + w->leaf = rt->u.dst.rt6_next; if (w->leaf == NULL) w->state = FWS_U; } } read_unlock(&fib6_walker_lock); - rt->u.next = NULL; + rt->u.dst.rt6_next = NULL; if (fn->leaf == NULL && fn->fn_flags&RTN_TL_ROOT) fn->leaf = &ip6_null_entry; @@ -1190,7 +1190,7 @@ int fib6_del(struct rt6_info *rt, struct nl_info *info) * Walk the leaf entries looking for ourself */ - for (rtp = &fn->leaf; *rtp; rtp = &(*rtp)->u.next) { + for (rtp = &fn->leaf; *rtp; rtp = &(*rtp)->u.dst.rt6_next) { if (*rtp == rt) { fib6_del_route(fn, rtp, info); return 0; @@ -1317,7 +1317,7 @@ static int fib6_clean_node(struct fib6_walker_t *w) struct rt6_info *rt; struct fib6_cleaner_t *c = (struct fib6_cleaner_t*)w; - for (rt = w->leaf; rt; rt = rt->u.next) { + for (rt = w->leaf; rt; rt = rt->u.dst.rt6_next) { res = c->func(rt, c->arg); if (res < 0) { w->leaf = rt; diff --git a/net/ipv6/route.c b/net/ipv6/route.c index fc8448cc5d..a415ac610e 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -243,7 +243,7 @@ static __inline__ struct rt6_info *rt6_device_match(struct rt6_info *rt, struct rt6_info *sprt; if (oif) { - for (sprt = rt; sprt; sprt = sprt->u.next) { + for (sprt = rt; sprt; sprt = sprt->u.dst.rt6_next) { struct net_device *dev = sprt->rt6i_dev; if (dev->ifindex == oif) return sprt; @@ -376,7 +376,7 @@ static struct rt6_info *rt6_select(struct rt6_info **head, int oif, for (rt = rt0, metric = rt0->rt6i_metric; rt && rt->rt6i_metric == metric && (!last || rt != rt0); - rt = rt->u.next) { + rt = rt->u.dst.rt6_next) { int m; if (rt6_check_expired(rt)) @@ -404,9 +404,9 @@ static struct rt6_info *rt6_select(struct rt6_info **head, int oif, /* no entries matched; do round-robin */ static DEFINE_SPINLOCK(lock); spin_lock(&lock); - *head = rt0->u.next; - rt0->u.next = last->u.next; - last->u.next = rt0; + *head = rt0->u.dst.rt6_next; + rt0->u.dst.rt6_next = last->u.dst.rt6_next; + last->u.dst.rt6_next = rt0; spin_unlock(&lock); } @@ -1278,7 +1278,7 @@ static int ip6_route_del(struct fib6_config *cfg) &cfg->fc_src, cfg->fc_src_len); if (fn) { - for (rt = fn->leaf; rt; rt = rt->u.next) { + for (rt = fn->leaf; rt; rt = rt->u.dst.rt6_next) { if (cfg->fc_ifindex && (rt->rt6i_dev == NULL || rt->rt6i_dev->ifindex != cfg->fc_ifindex)) @@ -1329,7 +1329,7 @@ static struct rt6_info *__ip6_route_redirect(struct fib6_table *table, read_lock_bh(&table->tb6_lock); fn = fib6_lookup(&table->tb6_root, &fl->fl6_dst, &fl->fl6_src); restart: - for (rt = fn->leaf; rt; rt = rt->u.next) { + for (rt = fn->leaf; rt; rt = rt->u.dst.rt6_next) { /* * Current route is on-link; redirect is always invalid. * @@ -1590,7 +1590,7 @@ static struct rt6_info *rt6_get_route_info(struct in6_addr *prefix, int prefixle if (!fn) goto out; - for (rt = fn->leaf; rt; rt = rt->u.next) { + for (rt = fn->leaf; rt; rt = rt->u.dst.rt6_next) { if (rt->rt6i_dev->ifindex != ifindex) continue; if ((rt->rt6i_flags & (RTF_ROUTEINFO|RTF_GATEWAY)) != (RTF_ROUTEINFO|RTF_GATEWAY)) @@ -1641,7 +1641,7 @@ struct rt6_info *rt6_get_dflt_router(struct in6_addr *addr, struct net_device *d return NULL; write_lock_bh(&table->tb6_lock); - for (rt = table->tb6_root.leaf; rt; rt=rt->u.next) { + for (rt = table->tb6_root.leaf; rt; rt=rt->u.dst.rt6_next) { if (dev == rt->rt6i_dev && ((rt->rt6i_flags & (RTF_ADDRCONF | RTF_DEFAULT)) == (RTF_ADDRCONF | RTF_DEFAULT)) && ipv6_addr_equal(&rt->rt6i_gateway, addr)) @@ -1684,7 +1684,7 @@ void rt6_purge_dflt_routers(void) restart: read_lock_bh(&table->tb6_lock); - for (rt = table->tb6_root.leaf; rt; rt = rt->u.next) { + for (rt = table->tb6_root.leaf; rt; rt = rt->u.dst.rt6_next) { if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) { dst_hold(&rt->u.dst); read_unlock_bh(&table->tb6_lock); -- 2.39.5