@@ -415,16 +415,15 @@ out:
*/
static struct fib6_node *fib6_add_1(struct fib6_node *root,
- struct in6_addr *addr, int plen,
- int offset, int allow_create,
- int replace_required)
+ struct in6_addr *addr, int plen,
+ int offset, int allow_create,
+ int replace_required, u32 sernum)
{
struct fib6_node *fn, *in, *ln;
struct fib6_node *pn = NULL;
struct rt6key *key;
int bit;
__be32 dir = 0;
- u32 sernum = fib6_new_sernum();
RT6_TRACE("fib6_add_1\n");
@@ -842,6 +841,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info,
int err = -ENOMEM;
int allow_create = 1;
int replace_required = 0;
+ u32 sernum = fib6_new_sernum();
if (info->nlh) {
if (!(info->nlh->nlmsg_flags & NLM_F_CREATE))
@@ -854,7 +854,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info,
fn = fib6_add_1(root, &rt->rt6i_dst.addr, rt->rt6i_dst.plen,
offsetof(struct rt6_info, rt6i_dst), allow_create,
- replace_required);
+ replace_required, sernum);
if (IS_ERR(fn)) {
err = PTR_ERR(fn);
fn = NULL;
@@ -888,14 +888,14 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info,
sfn->leaf = info->nl_net->ipv6.ip6_null_entry;
atomic_inc(&info->nl_net->ipv6.ip6_null_entry->rt6i_ref);
sfn->fn_flags = RTN_ROOT;
- sfn->fn_sernum = fib6_new_sernum();
+ sfn->fn_sernum = sernum;
/* Now add the first leaf node to new subtree */
sn = fib6_add_1(sfn, &rt->rt6i_src.addr,
rt->rt6i_src.plen,
offsetof(struct rt6_info, rt6i_src),
- allow_create, replace_required);
+ allow_create, replace_required, sernum);
if (IS_ERR(sn)) {
/* If it is failed, discard just allocated
@@ -914,7 +914,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info,
sn = fib6_add_1(fn->subtree, &rt->rt6i_src.addr,
rt->rt6i_src.plen,
offsetof(struct rt6_info, rt6i_src),
- allow_create, replace_required);
+ allow_create, replace_required, sernum);
if (IS_ERR(sn)) {
err = PTR_ERR(sn);
@@ -934,8 +934,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info,
if (!err) {
fib6_start_gc(info->nl_net, rt);
if (!(rt->rt6i_flags & RTF_CACHE))
- fib6_prune_clones(info->nl_net, pn,
- FIB6_NO_SERNUM_CHANGE);
+ fib6_prune_clones(info->nl_net, pn, sernum);
}
out:
Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: YOSHIFUJI Hideaki <hideaki@yoshifuji.org> Cc: Vlad Yasevich <vyasevich@gmail.com> Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Cc: Martin Lau <kafai@fb.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> --- net/ipv6/ip6_fib.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-)