diff options
| author |   David Ahern <dsahern@gmail.com> | 2018-04-17 17:33:17 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-04-17 23:41:17 -0400 |
| commit | 14895687d36805f051bb54014c32e48e5937f7e1 (patch) | |
| tree | 2f72e7bd6f5b1c31e184191bdf2302a0ea3005e5 /include/net | |
| parent | net/ipv6: move metrics from dst to rt6_info (diff) | |
| download | linux-dev-14895687d36805f051bb54014c32e48e5937f7e1.tar.xz linux-dev-14895687d36805f051bb54014c32e48e5937f7e1.zip | |
net/ipv6: move expires into rt6_info
Add expires to rt6_info for FIB entries, and add fib6 helpers to
manage it. Data path use of dst.expires remains.
The transition is fairly straightforward: when working with fib entries,
rt->dst.expires is just rt->expires, rt6_clean_expires is replaced with
fib6_clean_expires, rt6_set_expires becomes fib6_set_expires, and
rt6_check_expired becomes fib6_check_expired, where the fib6 versions
are added by this patch.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/ip6_fib.h | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index 1f8dc9d12abb..c73b985734f5 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -179,6 +179,7 @@ struct rt6_info { should_flush:1, unused:6; + unsigned long expires; struct dst_metrics *fib6_metrics; #define fib6_pmtu fib6_metrics->metrics[RTAX_MTU-1] struct fib6_nh fib6_nh; @@ -197,6 +198,26 @@ static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst) return ((struct rt6_info *)dst)->rt6i_idev; } +static inline void fib6_clean_expires(struct rt6_info *f6i) +{ + f6i->rt6i_flags &= ~RTF_EXPIRES; + f6i->expires = 0; +} + +static inline void fib6_set_expires(struct rt6_info *f6i, + unsigned long expires) +{ + f6i->expires = expires; + f6i->rt6i_flags |= RTF_EXPIRES; +} + +static inline bool fib6_check_expired(const struct rt6_info *f6i) +{ + if (f6i->rt6i_flags & RTF_EXPIRES) + return time_after(jiffies, f6i->expires); + return false; +} + static inline void rt6_clean_expires(struct rt6_info *rt) { rt->rt6i_flags &= ~RTF_EXPIRES; @@ -211,11 +232,9 @@ static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires) static inline void rt6_update_expires(struct rt6_info *rt0, int timeout) { - struct rt6_info *rt; + if (!(rt0->rt6i_flags & RTF_EXPIRES) && rt0->from) + rt0->dst.expires = rt0->from->expires; - for (rt = rt0; rt && !(rt->rt6i_flags & RTF_EXPIRES); rt = rt->from); - if (rt && rt != rt0) - rt0->dst.expires = rt->dst.expires; dst_set_expires(&rt0->dst, timeout); rt0->rt6i_flags |= RTF_EXPIRES; } |