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ipv6: delay fib6_sernum increase in fib6_add 

[ Upstream commit e87b5052271e39d62337ade531992b7e5d8c2cfa ]

only increase fib6_sernum in net namespace after add fib6_info
successfully.

Signed-off-by: zhang kai <zhangkaiheb@126.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
zhang kai 2021-09-09 16:39:18 +08:00 committed by Greg Kroah-Hartman
parent 7432ecc55f
commit 7273cb182f
1 changed files with 1 additions and 2 deletions
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3
net/ipv6/ip6_fib.c
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@ -1310,7 +1310,6 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
int err = -ENOMEM;
int allow_create = 1;
int replace_required = 0;
int sernum = fib6_new_sernum(info->nl_net);
if (info->nlh) {
if (!(info->nlh->nlmsg_flags & NLM_F_CREATE))
@ -1410,7 +1409,7 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
if (!err) {
if (rt->nh)
list_add(&rt->nh_list, &rt->nh->f6i_list);
__fib6_update_sernum_upto_root(rt, sernum);
__fib6_update_sernum_upto_root(rt, fib6_new_sernum(info->nl_net));
fib6_start_gc(info->nl_net, rt);
}