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[IPV6] ROUTE: Put SUBTREE() as FIB6_SUBTREE() into ip6_fib.h for future use.

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Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki 2006-08-23 17:22:24 -07:00 committed by David S. Miller
parent fefc2a6c20
commit 7fc33165a7
2 changed files with 14 additions and 11 deletions
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5
include/net/ip6_fib.h
View File

@ -60,6 +60,11 @@ struct fib6_node
__u32 fn_sernum;
};
#ifndef CONFIG_IPV6_SUBTREES
#define FIB6_SUBTREE(fn) NULL
#else
#define FIB6_SUBTREE(fn) ((fn)->subtree)
#endif
/*
* routing information

20
net/ipv6/ip6_fib.c
View File

@ -73,10 +73,8 @@ static DEFINE_RWLOCK(fib6_walker_lock);
#ifdef CONFIG_IPV6_SUBTREES
#define FWS_INIT FWS_S
#define SUBTREE(fn) ((fn)->subtree)
#else
#define FWS_INIT FWS_L
#define SUBTREE(fn) NULL
#endif
static void fib6_prune_clones(struct fib6_node *fn, struct rt6_info *rt);
@ -854,7 +852,7 @@ static struct fib6_node * fib6_lookup_1(struct fib6_node *root,
}
while(fn) {
if (SUBTREE(fn) || fn->fn_flags & RTN_RTINFO) {
if (FIB6_SUBTREE(fn) || fn->fn_flags & RTN_RTINFO) {
struct rt6key *key;
key = (struct rt6key *) ((u8 *) fn->leaf +
@ -985,7 +983,7 @@ static struct rt6_info * fib6_find_prefix(struct fib6_node *fn)
if(fn->right)
return fn->right->leaf;
fn = SUBTREE(fn);
fn = FIB6_SUBTREE(fn);
}
return NULL;
}
@ -1016,7 +1014,7 @@ static struct fib6_node * fib6_repair_tree(struct fib6_node *fn)
if (fn->right) child = fn->right, children |= 1;
if (fn->left) child = fn->left, children |= 2;
if (children == 3 || SUBTREE(fn)
if (children == 3 || FIB6_SUBTREE(fn)
#ifdef CONFIG_IPV6_SUBTREES
/* Subtree root (i.e. fn) may have one child */
|| (children && fn->fn_flags&RTN_ROOT)
@ -1035,9 +1033,9 @@ static struct fib6_node * fib6_repair_tree(struct fib6_node *fn)
pn = fn->parent;
#ifdef CONFIG_IPV6_SUBTREES
if (SUBTREE(pn) == fn) {
if (FIB6_SUBTREE(pn) == fn) {
BUG_TRAP(fn->fn_flags&RTN_ROOT);
SUBTREE(pn) = NULL;
FIB6_SUBTREE(pn) = NULL;
nstate = FWS_L;
} else {
BUG_TRAP(!(fn->fn_flags&RTN_ROOT));
@ -1085,7 +1083,7 @@ static struct fib6_node * fib6_repair_tree(struct fib6_node *fn)
read_unlock(&fib6_walker_lock);
node_free(fn);
if (pn->fn_flags&RTN_RTINFO || SUBTREE(pn))
if (pn->fn_flags&RTN_RTINFO || FIB6_SUBTREE(pn))
return pn;
rt6_release(pn->leaf);
@ -1228,8 +1226,8 @@ static int fib6_walk_continue(struct fib6_walker_t *w)
switch (w->state) {
#ifdef CONFIG_IPV6_SUBTREES
case FWS_S:
if (SUBTREE(fn)) {
w->node = SUBTREE(fn);
if (FIB6_SUBTREE(fn)) {
w->node = FIB6_SUBTREE(fn);
continue;
}
w->state = FWS_L;
@ -1263,7 +1261,7 @@ static int fib6_walk_continue(struct fib6_walker_t *w)
pn = fn->parent;
w->node = pn;
#ifdef CONFIG_IPV6_SUBTREES
if (SUBTREE(pn) == fn) {
if (FIB6_SUBTREE(pn) == fn) {
BUG_TRAP(fn->fn_flags&RTN_ROOT);
w->state = FWS_L;
continue;