From 350311aab4c0b2477f9cf3fb03cef2e4cd6c3b18 Mon Sep 17 00:00:00 2001 From: Kirill Tkhai Date: Thu, 29 Mar 2018 19:20:56 +0300 Subject: security: Remove rtnl_lock() in selinux_xfrm_notify_policyload() rt_genid_bump_all() consists of ipv4 and ipv6 part. ipv4 part is incrementing of net::ipv4::rt_genid, and I see many places, where it's read without rtnl_lock(). ipv6 part calls __fib6_clean_all(), and it's also called without rtnl_lock() in other places. So, rtnl_lock() here was used to iterate net_namespace_list only, and we can remove it. Signed-off-by: Kirill Tkhai Signed-off-by: David S. Miller --- security/selinux/include/xfrm.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h index 31d66431be1e..a0b465316292 100644 --- a/security/selinux/include/xfrm.h +++ b/security/selinux/include/xfrm.h @@ -47,12 +47,10 @@ static inline void selinux_xfrm_notify_policyload(void) { struct net *net; - rtnl_lock(); down_read(&net_rwsem); for_each_net(net) rt_genid_bump_all(net); up_read(&net_rwsem); - rtnl_unlock(); } #else static inline int selinux_xfrm_enabled(void) -- cgit v1.2.3-55-g7522