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authorDavid Ahern <dsahern@gmail.com>2019-05-23 06:27:59 +0300
committerDavid S. Miller <davem@davemloft.net>2019-05-24 23:26:44 +0300
commit1cf844c747d5424abe76f7b599c00b1ac17d3fce (patch)
treeec68db9a13a743fafe2f3db3877226f7e5bd2cce /include/net/ip6_fib.h
parentcc5c073a693fa6ed7a207b0436114f68cce72434 (diff)
downloadlinux-1cf844c747d5424abe76f7b599c00b1ac17d3fce.tar.xz
ipv6: Make fib6_nh optional at the end of fib6_info
Move fib6_nh to the end of fib6_info and make it an array of size 0. Pass a flag to fib6_info_alloc indicating if the allocation needs to add space for a fib6_nh. The current code path always has a fib6_nh allocated with a fib6_info; with nexthop objects they will be separate. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip6_fib.h')
-rw-r--r--include/net/ip6_fib.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 6b4852cf2fc2..ebe5d65f97e0 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -169,8 +169,8 @@ struct fib6_info {
fib6_destroying:1,
unused:3;
- struct fib6_nh fib6_nh;
struct rcu_head rcu;
+ struct fib6_nh fib6_nh[0];
};
struct rt6_info {
@@ -280,7 +280,7 @@ static inline void ip6_rt_put(struct rt6_info *rt)
dst_release(&rt->dst);
}
-struct fib6_info *fib6_info_alloc(gfp_t gfp_flags);
+struct fib6_info *fib6_info_alloc(gfp_t gfp_flags, bool with_fib6_nh);
void fib6_info_destroy_rcu(struct rcu_head *head);
static inline void fib6_info_hold(struct fib6_info *f6i)
@@ -443,7 +443,7 @@ void rt6_get_prefsrc(const struct rt6_info *rt, struct in6_addr *addr)
static inline struct net_device *fib6_info_nh_dev(const struct fib6_info *f6i)
{
- return f6i->fib6_nh.fib_nh_dev;
+ return f6i->fib6_nh->fib_nh_dev;
}
int fib6_nh_init(struct net *net, struct fib6_nh *fib6_nh,