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xfrm: Make xfrm_state timer monotonic

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xfrm_state timer should be independent of system clock change,
so switch to CLOCK_BOOTTIME base which is not only monotonic but
also counting suspend time.

Thus issue reported in commit: 9e0d57fd6d
("xfrm: SAD entries do not expire correctly after suspend-resume")
could ALSO be avoided.

v2: Use CLOCK_BOOTTIME to count suspend time, but still monotonic.

Signed-off-by: Fan Du <fan.du@windriver.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Fan Du 2013-08-15 15:49:06 +08:00 committed by Steffen Klassert
parent af83fde751
commit 99565a6c47
1 changed files with 2 additions and 1 deletions
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3
net/xfrm/xfrm_state.c
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@ -499,7 +499,8 @@ struct xfrm_state *xfrm_state_alloc(struct net *net)
INIT_HLIST_NODE(&x->bydst);
INIT_HLIST_NODE(&x->bysrc);
INIT_HLIST_NODE(&x->byspi);
tasklet_hrtimer_init(&x->mtimer, xfrm_timer_handler, CLOCK_REALTIME, HRTIMER_MODE_ABS);
tasklet_hrtimer_init(&x->mtimer, xfrm_timer_handler,
CLOCK_BOOTTIME, HRTIMER_MODE_ABS);
setup_timer(&x->rtimer, xfrm_replay_timer_handler,
(unsigned long)x);
x->curlft.add_time = get_seconds();