diff options
Diffstat (limited to 'include/net/dst_cache.h')
| -rw-r--r-- | include/net/dst_cache.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/net/dst_cache.h b/include/net/dst_cache.h index 67634675e919..1961699598e2 100644 --- a/include/net/dst_cache.h +++ b/include/net/dst_cache.h @@ -76,10 +76,21 @@ struct dst_entry *dst_cache_get_ip6(struct dst_cache *dst_cache, */ static inline void dst_cache_reset(struct dst_cache *dst_cache) { - dst_cache->reset_ts = jiffies; + WRITE_ONCE(dst_cache->reset_ts, jiffies); } /** + * dst_cache_reset_now - invalidate the cache contents immediately + * @dst_cache: the cache + * + * The caller must be sure there are no concurrent users, as this frees + * all dst_cache users immediately, rather than waiting for the next + * per-cpu usage like dst_cache_reset does. Most callers should use the + * higher speed lazily-freed dst_cache_reset function instead. + */ +void dst_cache_reset_now(struct dst_cache *dst_cache); + +/** * dst_cache_init - initialize the cache, allocating the required storage * @dst_cache: the cache * @gfp: allocation flags @@ -91,7 +102,7 @@ int dst_cache_init(struct dst_cache *dst_cache, gfp_t gfp); * @dst_cache: the cache * * No synchronization is enforced: it must be called only when the cache - * is unsed. + * is unused. */ void dst_cache_destroy(struct dst_cache *dst_cache); |