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authorDavid Ahern <dsahern@gmail.com>2019-05-23 05:28:00 +0200
committerDavid S. Miller <davem@davemloft.net>2019-05-24 22:26:44 +0200
commit0fa6efc54780412c3fbd6f6e61a5dfb4ca9bb59c (patch)
treeb92bf370a2f8db1ac26fae30d4113e4e4bbea24a /net
parentipv6: Make fib6_nh optional at the end of fib6_info (diff)
downloadlinux-0fa6efc54780412c3fbd6f6e61a5dfb4ca9bb59c.tar.xz
linux-0fa6efc54780412c3fbd6f6e61a5dfb4ca9bb59c.zip
ipv6: Refactor ip6_route_del for cached routes
Move the removal of cached routes to a helper, ip6_del_cached_rt, that can be invoked per nexthop. Rename the existig ip6_del_cached_rt to __ip6_del_cached_rt since it is called by ip6_del_cached_rt. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/route.c36
1 files changed, 21 insertions, 15 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index f248ce807116..fdf598926883 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3430,7 +3430,7 @@ out_put:
return err;
}
-static int ip6_del_cached_rt(struct rt6_info *rt, struct fib6_config *cfg)
+static int __ip6_del_cached_rt(struct rt6_info *rt, struct fib6_config *cfg)
{
int rc = -ESRCH;
@@ -3446,10 +3446,25 @@ out:
return rc;
}
+static int ip6_del_cached_rt(struct fib6_config *cfg, struct fib6_info *rt,
+ struct fib6_nh *nh)
+{
+ struct fib6_result res = {
+ .f6i = rt,
+ .nh = nh,
+ };
+ struct rt6_info *rt_cache;
+
+ rt_cache = rt6_find_cached_rt(&res, &cfg->fc_dst, &cfg->fc_src);
+ if (rt_cache)
+ return __ip6_del_cached_rt(rt_cache, cfg);
+
+ return 0;
+}
+
static int ip6_route_del(struct fib6_config *cfg,
struct netlink_ext_ack *extack)
{
- struct rt6_info *rt_cache;
struct fib6_table *table;
struct fib6_info *rt;
struct fib6_node *fn;
@@ -3474,21 +3489,12 @@ static int ip6_route_del(struct fib6_config *cfg,
nh = rt->fib6_nh;
if (cfg->fc_flags & RTF_CACHE) {
- struct fib6_result res = {
- .f6i = rt,
- .nh = nh,
- };
int rc;
- rt_cache = rt6_find_cached_rt(&res,
- &cfg->fc_dst,
- &cfg->fc_src);
- if (rt_cache) {
- rc = ip6_del_cached_rt(rt_cache, cfg);
- if (rc != -ESRCH) {
- rcu_read_unlock();
- return rc;
- }
+ rc = ip6_del_cached_rt(cfg, rt, nh);
+ if (rc != -ESRCH) {
+ rcu_read_unlock();
+ return rc;
}
continue;
}