From 94b2cfe02bfe3f1918d91bd6f498e308c5605cbc Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Mon, 6 Oct 2014 19:58:34 +0200 Subject: [PATCH] ipv6: minor fib6 cleanups like type safety, bool conversion, inline removal Also renamed struct fib6_walker_t to fib6_walker and enum fib_walk_state_t to fib6_walk_state as recommended by Cong Wang. Cc: Cong Wang Cc: YOSHIFUJI Hideaki Cc: Martin Lau Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- include/net/ip6_fib.h | 18 ++++++++--- net/ipv6/ip6_fib.c | 71 +++++++++++++++++++------------------------ 2 files changed, 45 insertions(+), 44 deletions(-) diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index cf485f9aa563..9221bf4c64f7 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -202,15 +202,25 @@ static inline void ip6_rt_put(struct rt6_info *rt) dst_release(&rt->dst); } -struct fib6_walker_t { +enum fib6_walk_state { +#ifdef CONFIG_IPV6_SUBTREES + FWS_S, +#endif + FWS_L, + FWS_R, + FWS_C, + FWS_U +}; + +struct fib6_walker { struct list_head lh; struct fib6_node *root, *node; struct rt6_info *leaf; - unsigned char state; - unsigned char prune; + enum fib6_walk_state state; + bool prune; unsigned int skip; unsigned int count; - int (*func)(struct fib6_walker_t *); + int (*func)(struct fib6_walker *); void *args; }; diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 97b9fa8de377..e8d7465b1597 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -46,18 +46,8 @@ static struct kmem_cache *fib6_node_kmem __read_mostly; -enum fib_walk_state_t { -#ifdef CONFIG_IPV6_SUBTREES - FWS_S, -#endif - FWS_L, - FWS_R, - FWS_C, - FWS_U -}; - -struct fib6_cleaner_t { - struct fib6_walker_t w; +struct fib6_cleaner { + struct fib6_walker w; struct net *net; int (*func)(struct rt6_info *, void *arg); void *arg; @@ -74,8 +64,8 @@ static DEFINE_RWLOCK(fib6_walker_lock); static void fib6_prune_clones(struct net *net, struct fib6_node *fn); static struct rt6_info *fib6_find_prefix(struct net *net, struct fib6_node *fn); static struct fib6_node *fib6_repair_tree(struct net *net, struct fib6_node *fn); -static int fib6_walk(struct fib6_walker_t *w); -static int fib6_walk_continue(struct fib6_walker_t *w); +static int fib6_walk(struct fib6_walker *w); +static int fib6_walk_continue(struct fib6_walker *w); /* * A routing update causes an increase of the serial number on the @@ -91,20 +81,21 @@ static void fib6_gc_timer_cb(unsigned long arg); static LIST_HEAD(fib6_walkers); #define FOR_WALKERS(w) list_for_each_entry(w, &fib6_walkers, lh) -static inline void fib6_walker_link(struct fib6_walker_t *w) +static void fib6_walker_link(struct fib6_walker *w) { write_lock_bh(&fib6_walker_lock); list_add(&w->lh, &fib6_walkers); write_unlock_bh(&fib6_walker_lock); } -static inline void fib6_walker_unlink(struct fib6_walker_t *w) +static void fib6_walker_unlink(struct fib6_walker *w) { write_lock_bh(&fib6_walker_lock); list_del(&w->lh); write_unlock_bh(&fib6_walker_lock); } -static __inline__ u32 fib6_new_sernum(void) + +static u32 fib6_new_sernum(void) { u32 n = ++rt_sernum; if ((__s32)n <= 0) @@ -128,7 +119,7 @@ static __inline__ u32 fib6_new_sernum(void) # define BITOP_BE32_SWIZZLE 0 #endif -static __inline__ __be32 addr_bit_set(const void *token, int fn_bit) +static __be32 addr_bit_set(const void *token, int fn_bit) { const __be32 *addr = token; /* @@ -142,7 +133,7 @@ static __inline__ __be32 addr_bit_set(const void *token, int fn_bit) addr[fn_bit >> 5]; } -static __inline__ struct fib6_node *node_alloc(void) +static struct fib6_node *node_alloc(void) { struct fib6_node *fn; @@ -151,12 +142,12 @@ static __inline__ struct fib6_node *node_alloc(void) return fn; } -static __inline__ void node_free(struct fib6_node *fn) +static void node_free(struct fib6_node *fn) { kmem_cache_free(fib6_node_kmem, fn); } -static __inline__ void rt6_release(struct rt6_info *rt) +static void rt6_release(struct rt6_info *rt) { if (atomic_dec_and_test(&rt->rt6i_ref)) dst_free(&rt->dst); @@ -267,7 +258,7 @@ static void __net_init fib6_tables_init(struct net *net) #endif -static int fib6_dump_node(struct fib6_walker_t *w) +static int fib6_dump_node(struct fib6_walker *w) { int res; struct rt6_info *rt; @@ -287,7 +278,7 @@ static int fib6_dump_node(struct fib6_walker_t *w) static void fib6_dump_end(struct netlink_callback *cb) { - struct fib6_walker_t *w = (void *)cb->args[2]; + struct fib6_walker *w = (void *)cb->args[2]; if (w) { if (cb->args[4]) { @@ -310,7 +301,7 @@ static int fib6_dump_done(struct netlink_callback *cb) static int fib6_dump_table(struct fib6_table *table, struct sk_buff *skb, struct netlink_callback *cb) { - struct fib6_walker_t *w; + struct fib6_walker *w; int res; w = (void *)cb->args[2]; @@ -355,7 +346,7 @@ static int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb) unsigned int h, s_h; unsigned int e = 0, s_e; struct rt6_rtnl_dump_arg arg; - struct fib6_walker_t *w; + struct fib6_walker *w; struct fib6_table *tb; struct hlist_head *head; int res = 0; @@ -627,7 +618,7 @@ insert_above: return ln; } -static inline bool rt6_qualify_for_ecmp(struct rt6_info *rt) +static bool rt6_qualify_for_ecmp(struct rt6_info *rt) { return (rt->rt6i_flags & (RTF_GATEWAY|RTF_ADDRCONF|RTF_DYNAMIC)) == RTF_GATEWAY; @@ -820,7 +811,7 @@ add: return 0; } -static __inline__ void fib6_start_gc(struct net *net, struct rt6_info *rt) +static void fib6_start_gc(struct net *net, struct rt6_info *rt) { if (!timer_pending(&net->ipv6.ip6_fib_timer) && (rt->rt6i_flags & (RTF_EXPIRES | RTF_CACHE))) @@ -1174,7 +1165,7 @@ static struct fib6_node *fib6_repair_tree(struct net *net, int children; int nstate; struct fib6_node *child, *pn; - struct fib6_walker_t *w; + struct fib6_walker *w; int iter = 0; for (;;) { @@ -1276,7 +1267,7 @@ static struct fib6_node *fib6_repair_tree(struct net *net, static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp, struct nl_info *info) { - struct fib6_walker_t *w; + struct fib6_walker *w; struct rt6_info *rt = *rtp; struct net *net = info->nl_net; @@ -1414,7 +1405,7 @@ int fib6_del(struct rt6_info *rt, struct nl_info *info) * <0 -> walk is terminated by an error. */ -static int fib6_walk_continue(struct fib6_walker_t *w) +static int fib6_walk_continue(struct fib6_walker *w) { struct fib6_node *fn, *pn; @@ -1498,7 +1489,7 @@ skip: } } -static int fib6_walk(struct fib6_walker_t *w) +static int fib6_walk(struct fib6_walker *w) { int res; @@ -1512,11 +1503,11 @@ static int fib6_walk(struct fib6_walker_t *w) return res; } -static int fib6_clean_node(struct fib6_walker_t *w) +static int fib6_clean_node(struct fib6_walker *w) { int res; struct rt6_info *rt; - struct fib6_cleaner_t *c = container_of(w, struct fib6_cleaner_t, w); + struct fib6_cleaner *c = container_of(w, struct fib6_cleaner, w); struct nl_info info = { .nl_net = c->net, }; @@ -1554,9 +1545,9 @@ static int fib6_clean_node(struct fib6_walker_t *w) static void fib6_clean_tree(struct net *net, struct fib6_node *root, int (*func)(struct rt6_info *, void *arg), - int prune, void *arg) + bool prune, void *arg) { - struct fib6_cleaner_t c; + struct fib6_cleaner c; c.w.root = root; c.w.func = fib6_clean_node; @@ -1583,7 +1574,7 @@ void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg), hlist_for_each_entry_rcu(table, head, tb6_hlist) { write_lock_bh(&table->tb6_lock); fib6_clean_tree(net, &table->tb6_root, - func, 0, arg); + func, false, arg); write_unlock_bh(&table->tb6_lock); } } @@ -1602,7 +1593,7 @@ static int fib6_prune_clone(struct rt6_info *rt, void *arg) static void fib6_prune_clones(struct net *net, struct fib6_node *fn) { - fib6_clean_tree(net, fn, fib6_prune_clone, 1, NULL); + fib6_clean_tree(net, fn, fib6_prune_clone, true, NULL); } static int fib6_update_sernum(struct rt6_info *rt, void *arg) @@ -1828,7 +1819,7 @@ void fib6_gc_cleanup(void) struct ipv6_route_iter { struct seq_net_private p; - struct fib6_walker_t w; + struct fib6_walker w; loff_t skip; struct fib6_table *tbl; __u32 sernum; @@ -1859,7 +1850,7 @@ static int ipv6_route_seq_show(struct seq_file *seq, void *v) return 0; } -static int ipv6_route_yield(struct fib6_walker_t *w) +static int ipv6_route_yield(struct fib6_walker *w) { struct ipv6_route_iter *iter = w->args; @@ -1980,7 +1971,7 @@ static void *ipv6_route_seq_start(struct seq_file *seq, loff_t *pos) static bool ipv6_route_iter_active(struct ipv6_route_iter *iter) { - struct fib6_walker_t *w = &iter->w; + struct fib6_walker *w = &iter->w; return w->node && !(w->state == FWS_U && w->node == w->root); } -- 2.34.1