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authorRoman Mashak <mrv@mojatatu.com>2020-05-17 15:46:31 +0300
committerDavid S. Miller <davem@davemloft.net>2020-05-19 03:32:19 +0300
commitb15e62631c5f19fea9895f7632dae9c1b27fe0cd (patch)
treeaede4a3797be57d4886a8d3d3b34632c5655db41 /include
parente3f2d5579c0b8ad9d1fb6a5813cee38a86386e05 (diff)
downloadlinux-b15e62631c5f19fea9895f7632dae9c1b27fe0cd.tar.xz
net sched: fix reporting the first-time use timestamp
When a new action is installed, firstuse field of 'tcf_t' is explicitly set to 0. Value of zero means "new action, not yet used"; as a packet hits the action, 'firstuse' is stamped with the current jiffies value. tcf_tm_dump() should return 0 for firstuse if action has not yet been hit. Fixes: 48d8ee1694dd ("net sched actions: aggregate dumping of actions timeinfo") Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Roman Mashak <mrv@mojatatu.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/act_api.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/act_api.h b/include/net/act_api.h
index c24d7643548e..124bd139886c 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -75,7 +75,8 @@ static inline void tcf_tm_dump(struct tcf_t *dtm, const struct tcf_t *stm)
{
dtm->install = jiffies_to_clock_t(jiffies - stm->install);
dtm->lastuse = jiffies_to_clock_t(jiffies - stm->lastuse);
- dtm->firstuse = jiffies_to_clock_t(jiffies - stm->firstuse);
+ dtm->firstuse = stm->firstuse ?
+ jiffies_to_clock_t(jiffies - stm->firstuse) : 0;
dtm->expires = jiffies_to_clock_t(stm->expires);
}