diff options
Diffstat (limited to 'include/net/act_api.h')
| -rw-r--r-- | include/net/act_api.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/net/act_api.h b/include/net/act_api.h index db2063f..8d2a707 100644 --- a/include/net/act_api.h +++ b/include/net/act_api.h @@ -70,6 +70,17 @@ static inline void tcf_hashinfo_destroy(struct tcf_hashinfo *hf) kfree(hf->htab); } +/* Update lastuse only if needed, to avoid dirtying a cache line. + * We use a temp variable to avoid fetching jiffies twice. + */ +static inline void tcf_lastuse_update(struct tcf_t *tm) +{ + unsigned long now = jiffies; + + if (tm->lastuse != now) + tm->lastuse = now; +} + #ifdef CONFIG_NET_CLS_ACT #define ACT_P_CREATED 1 |