diff options
| author | joerg <joerg@NetBSD.org> | 2006-12-15 21:18:52 +0000 |
|---|---|---|
| committer | joerg <joerg@NetBSD.org> | 2006-12-15 21:18:52 +0000 |
| commit | eb04733c4ebdaf6e80235c9dc053099d24810e5a (patch) | |
| tree | 8d687ff17ec5c81d94e277523ad2daf72c07db75 /sys/dev/microcode | |
| parent | 581e519fb57dafe1505e770f37af3b605638d0c6 (diff) | |
Introduce new helper functions to abstract the route caching.
rtcache_init and rtcache_init_noclone lookup ro_dst and store
the result in ro_rt, taking care of the reference counting and
calling the domain specific route cache.
rtcache_free checks if a route was cashed and frees the reference.
rtcache_copy copies ro_dst of the given struct route, checking that
enough space is available and incrementing the reference count of the
cached rtentry if necessary.
rtcache_check validates that the cached route is still up. If it isn't,
it tries to look it up again. Afterwards ro_rt is either a valid again
or NULL.
rtcache_copy is used internally.
Adjust to callers of rtalloc/rtflush in the tree to check the sanity of
ro_dst first (if necessary). If it doesn't fit the expectations, free
the cache, otherwise check if the cached route is still valid. After
that combination, a single check for ro_rt == NULL is enough to decide
whether a new lookup needs to be done with a different ro_dst.
Make the route checking in gre stricter by repeating the loop check
after revalidation.
Remove some unused RADIX_MPATH code in in6_src.c. The logic is slightly
changed here to first validate the route and check RTF_GATEWAY
afterwards. This is sementically equivalent though.
etherip doesn't need sc_route_expire similiar to the gif changes from
dyoung@ earlier.
Based on the earlier patch from dyoung@, reviewed and discussed with
him.
Diffstat (limited to 'sys/dev/microcode')
0 files changed, 0 insertions, 0 deletions
