xiaomi-sm8450/android_kernel_xiaomi_sm8450
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ipv6: Remove old route notifications and convert listeners

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Now that mlxsw is converted to use the new FIB notifications it is
possible to delete the old ones and use the new replace / append /
delete notifications.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
这个提交包含在：
Ido Schimmel
2019-12-23 15:28:20 +02:00
提交者 David S. Miller
父节点 dacad7b34b
当前提交 caafb2509f
共修改 5 个文件，包含 21 行新增和 70 行删除
下载 Patch 文件 下载 Diff 文件 展开所有文件 折叠所有文件

61
net/ipv6/ip6_fib.c
查看文件

@@ -423,8 +423,7 @@ int call_fib6_entry_notifiers_replace(struct net *net, struct fib6_info *rt)
};
rt->fib6_table->fib_seq++;
return call_fib6_notifiers(net, FIB_EVENT_ENTRY_REPLACE_TMP,
&info.info);
return call_fib6_notifiers(net, FIB_EVENT_ENTRY_REPLACE, &info.info);
}
struct fib6_dump_arg {
@@ -435,15 +434,7 @@ struct fib6_dump_arg {
static int fib6_rt_dump(struct fib6_info *rt, struct fib6_dump_arg *arg)
{
if (rt == arg->net->ipv6.fib6_null_entry)
return 0;
return call_fib6_entry_notifier(arg->nb, FIB_EVENT_ENTRY_ADD,
rt, arg->extack);
}
static int fib6_rt_dump_tmp(struct fib6_info *rt, struct fib6_dump_arg *arg)
{
enum fib_event_type fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
enum fib_event_type fib_event = FIB_EVENT_ENTRY_REPLACE;
int err;
if (!rt || rt == arg->net->ipv6.fib6_null_entry)
@@ -463,19 +454,9 @@ static int fib6_rt_dump_tmp(struct fib6_info *rt, struct fib6_dump_arg *arg)
static int fib6_node_dump(struct fib6_walker *w)
{
struct fib6_info *rt;
int err = 0;
int err;
err = fib6_rt_dump_tmp(w->leaf, w->args);
if (err)
goto out;
for_each_fib6_walker_rt(w) {
err = fib6_rt_dump(rt, w->args);
if (err)
break;
}
out:
err = fib6_rt_dump(w->leaf, w->args);
w->leaf = NULL;
return err;
}
@@ -1220,25 +1201,21 @@ next_iter:
add:
nlflags |= NLM_F_CREATE;
if (!info->skip_notify_kernel) {
/* The route should only be notified if it is the first
* route in the node or if it is added as a sibling
* route to the first route in the node.
*/
if (!info->skip_notify_kernel &&
(notify_sibling_rt || ins == &fn->leaf)) {
enum fib_event_type fib_event;
if (notify_sibling_rt)
fib_event = FIB_EVENT_ENTRY_APPEND;
else
fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
/* The route should only be notified if it is the first
* route in the node or if it is added as a sibling
* route to the first route in the node.
*/
if (notify_sibling_rt || ins == &fn->leaf)
err = call_fib6_entry_notifiers(info->nl_net,
fib_event, rt,
extack);
fib_event = FIB_EVENT_ENTRY_REPLACE;
err = call_fib6_entry_notifiers(info->nl_net,
FIB_EVENT_ENTRY_ADD,
rt, extack);
fib_event, rt,
extack);
if (err) {
struct fib6_info *sibling, *next_sibling;
@@ -1282,14 +1259,7 @@ add:
return -ENOENT;
}
if (!info->skip_notify_kernel) {
enum fib_event_type fib_event;
fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
if (ins == &fn->leaf)
err = call_fib6_entry_notifiers(info->nl_net,
fib_event, rt,
extack);
if (!info->skip_notify_kernel && ins == &fn->leaf) {
err = call_fib6_entry_notifiers(info->nl_net,
FIB_EVENT_ENTRY_REPLACE,
rt, extack);
@@ -2007,11 +1977,10 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn,
if (!info->skip_notify_kernel) {
if (notify_del)
call_fib6_entry_notifiers(net, FIB_EVENT_ENTRY_DEL_TMP,
call_fib6_entry_notifiers(net, FIB_EVENT_ENTRY_DEL,
rt, NULL);
else if (replace_rt)
call_fib6_entry_notifiers_replace(net, replace_rt);
call_fib6_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, rt, NULL);
}
if (!info->skip_notify)
inet6_rt_notify(RTM_DELROUTE, rt, info, 0);

18
net/ipv6/route.c
查看文件

@@ -3787,15 +3787,10 @@ static int __ip6_del_rt_siblings(struct fib6_info *rt, struct fib6_config *cfg)
replace_rt);
else
call_fib6_multipath_entry_notifiers(net,
FIB_EVENT_ENTRY_DEL_TMP,
FIB_EVENT_ENTRY_DEL,
rt, rt->fib6_nsiblings,
NULL);
}
call_fib6_multipath_entry_notifiers(net,
FIB_EVENT_ENTRY_DEL,
rt,
rt->fib6_nsiblings,
NULL);
list_for_each_entry_safe(sibling, next_sibling,
&rt->fib6_siblings,
fib6_siblings) {
@@ -5074,7 +5069,6 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
{
struct fib6_info *rt_notif = NULL, *rt_last = NULL;
struct nl_info *info = &cfg->fc_nlinfo;
enum fib_event_type event_type;
struct fib6_config r_cfg;
struct rtnexthop *rtnh;
struct fib6_info *rt;
@@ -5210,7 +5204,7 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
if (rt_notif->fib6_nsiblings != nhn - 1)
fib_event = FIB_EVENT_ENTRY_APPEND;
else
fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
fib_event = FIB_EVENT_ENTRY_REPLACE;
err = call_fib6_multipath_entry_notifiers(info->nl_net,
fib_event, rt_notif,
@@ -5221,14 +5215,6 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
goto add_errout;
}
}
event_type = replace ? FIB_EVENT_ENTRY_REPLACE : FIB_EVENT_ENTRY_ADD;
err = call_fib6_multipath_entry_notifiers(info->nl_net, event_type,
rt_notif, nhn - 1, extack);
if (err) {
/* Delete all the siblings that were just added */
err_nh = NULL;
goto add_errout;
}
/* success ... tell user about new route */
ip6_route_mpath_notify(rt_notif, rt_last, info, nlflags);