diff options
Diffstat (limited to 'net/ipv4/fib_trie.c')
-rw-r--r-- | net/ipv4/fib_trie.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 3dd70787081e..90ae70870a10 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c | |||
@@ -43,7 +43,7 @@ | |||
43 | * 2 of the License, or (at your option) any later version. | 43 | * 2 of the License, or (at your option) any later version. |
44 | */ | 44 | */ |
45 | 45 | ||
46 | #define VERSION "0.403" | 46 | #define VERSION "0.404" |
47 | 47 | ||
48 | #include <linux/config.h> | 48 | #include <linux/config.h> |
49 | #include <asm/uaccess.h> | 49 | #include <asm/uaccess.h> |
@@ -224,7 +224,7 @@ static inline int tkey_mismatch(t_key a, int offset, t_key b) | |||
224 | Consider a node 'n' and its parent 'tp'. | 224 | Consider a node 'n' and its parent 'tp'. |
225 | 225 | ||
226 | If n is a leaf, every bit in its key is significant. Its presence is | 226 | If n is a leaf, every bit in its key is significant. Its presence is |
227 | necessitaded by path compression, since during a tree traversal (when | 227 | necessitated by path compression, since during a tree traversal (when |
228 | searching for a leaf - unless we are doing an insertion) we will completely | 228 | searching for a leaf - unless we are doing an insertion) we will completely |
229 | ignore all skipped bits we encounter. Thus we need to verify, at the end of | 229 | ignore all skipped bits we encounter. Thus we need to verify, at the end of |
230 | a potentially successful search, that we have indeed been walking the | 230 | a potentially successful search, that we have indeed been walking the |
@@ -836,11 +836,12 @@ static void trie_init(struct trie *t) | |||
836 | #endif | 836 | #endif |
837 | } | 837 | } |
838 | 838 | ||
839 | /* readside most use rcu_read_lock currently dump routines | 839 | /* readside must use rcu_read_lock currently dump routines |
840 | via get_fa_head and dump */ | 840 | via get_fa_head and dump */ |
841 | 841 | ||
842 | static struct leaf_info *find_leaf_info(struct hlist_head *head, int plen) | 842 | static struct leaf_info *find_leaf_info(struct leaf *l, int plen) |
843 | { | 843 | { |
844 | struct hlist_head *head = &l->list; | ||
844 | struct hlist_node *node; | 845 | struct hlist_node *node; |
845 | struct leaf_info *li; | 846 | struct leaf_info *li; |
846 | 847 | ||
@@ -853,7 +854,7 @@ static struct leaf_info *find_leaf_info(struct hlist_head *head, int plen) | |||
853 | 854 | ||
854 | static inline struct list_head * get_fa_head(struct leaf *l, int plen) | 855 | static inline struct list_head * get_fa_head(struct leaf *l, int plen) |
855 | { | 856 | { |
856 | struct leaf_info *li = find_leaf_info(&l->list, plen); | 857 | struct leaf_info *li = find_leaf_info(l, plen); |
857 | 858 | ||
858 | if (!li) | 859 | if (!li) |
859 | return NULL; | 860 | return NULL; |
@@ -1248,7 +1249,7 @@ err: | |||
1248 | } | 1249 | } |
1249 | 1250 | ||
1250 | 1251 | ||
1251 | /* should be clalled with rcu_read_lock */ | 1252 | /* should be called with rcu_read_lock */ |
1252 | static inline int check_leaf(struct trie *t, struct leaf *l, | 1253 | static inline int check_leaf(struct trie *t, struct leaf *l, |
1253 | t_key key, int *plen, const struct flowi *flp, | 1254 | t_key key, int *plen, const struct flowi *flp, |
1254 | struct fib_result *res) | 1255 | struct fib_result *res) |
@@ -1590,7 +1591,7 @@ fn_trie_delete(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta, | |||
1590 | rtmsg_fib(RTM_DELROUTE, htonl(key), fa, plen, tb->tb_id, nlhdr, req); | 1591 | rtmsg_fib(RTM_DELROUTE, htonl(key), fa, plen, tb->tb_id, nlhdr, req); |
1591 | 1592 | ||
1592 | l = fib_find_node(t, key); | 1593 | l = fib_find_node(t, key); |
1593 | li = find_leaf_info(&l->list, plen); | 1594 | li = find_leaf_info(l, plen); |
1594 | 1595 | ||
1595 | list_del_rcu(&fa->fa_list); | 1596 | list_del_rcu(&fa->fa_list); |
1596 | 1597 | ||
@@ -1714,7 +1715,6 @@ static int fn_trie_flush(struct fib_table *tb) | |||
1714 | 1715 | ||
1715 | t->revision++; | 1716 | t->revision++; |
1716 | 1717 | ||
1717 | rcu_read_lock(); | ||
1718 | for (h = 0; (l = nextleaf(t, l)) != NULL; h++) { | 1718 | for (h = 0; (l = nextleaf(t, l)) != NULL; h++) { |
1719 | found += trie_flush_leaf(t, l); | 1719 | found += trie_flush_leaf(t, l); |
1720 | 1720 | ||
@@ -1722,7 +1722,6 @@ static int fn_trie_flush(struct fib_table *tb) | |||
1722 | trie_leaf_remove(t, ll->key); | 1722 | trie_leaf_remove(t, ll->key); |
1723 | ll = l; | 1723 | ll = l; |
1724 | } | 1724 | } |
1725 | rcu_read_unlock(); | ||
1726 | 1725 | ||
1727 | if (ll && hlist_empty(&ll->list)) | 1726 | if (ll && hlist_empty(&ll->list)) |
1728 | trie_leaf_remove(t, ll->key); | 1727 | trie_leaf_remove(t, ll->key); |
@@ -2288,7 +2287,7 @@ static int fib_trie_seq_show(struct seq_file *seq, void *v) | |||
2288 | seq_indent(seq, iter->depth); | 2287 | seq_indent(seq, iter->depth); |
2289 | seq_printf(seq, " |-- %d.%d.%d.%d\n", NIPQUAD(val)); | 2288 | seq_printf(seq, " |-- %d.%d.%d.%d\n", NIPQUAD(val)); |
2290 | for (i = 32; i >= 0; i--) { | 2289 | for (i = 32; i >= 0; i--) { |
2291 | struct leaf_info *li = find_leaf_info(&l->list, i); | 2290 | struct leaf_info *li = find_leaf_info(l, i); |
2292 | if (li) { | 2291 | if (li) { |
2293 | struct fib_alias *fa; | 2292 | struct fib_alias *fa; |
2294 | list_for_each_entry_rcu(fa, &li->falh, fa_list) { | 2293 | list_for_each_entry_rcu(fa, &li->falh, fa_list) { |
@@ -2384,7 +2383,7 @@ static int fib_route_seq_show(struct seq_file *seq, void *v) | |||
2384 | return 0; | 2383 | return 0; |
2385 | 2384 | ||
2386 | for (i=32; i>=0; i--) { | 2385 | for (i=32; i>=0; i--) { |
2387 | struct leaf_info *li = find_leaf_info(&l->list, i); | 2386 | struct leaf_info *li = find_leaf_info(l, i); |
2388 | struct fib_alias *fa; | 2387 | struct fib_alias *fa; |
2389 | u32 mask, prefix; | 2388 | u32 mask, prefix; |
2390 | 2389 | ||