netdev - [net-next PATCH 5/5] net/sched/sch_hfsc.c: anchor virtual curve at proper vt in hfsc_change

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Message-Id: <1467246408-913-6-git-send-email-soltys@ziu.info>
Date:	Thu, 30 Jun 2016 02:26:48 +0200
From:	Michal Soltys <soltys@....info>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, kaber@...sh.net
Subject: [net-next PATCH 5/5] net/sched/sch_hfsc.c: anchor virtual curve at proper vt in hfsc_change_fsc()

cl->cl_vt alone is relative only to the current backlog period, while
the curve operates on cumulative virtual time. This patch adds missing
cl->cl_vtoff.

Signed-off-by: Michal Soltys <soltys@....info>
---
 net/sched/sch_hfsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 4eef857..dff92ea 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -940,7 +940,7 @@ static void
 hfsc_change_fsc(struct hfsc_class *cl, struct tc_service_curve *fsc)
 {
 	sc2isc(fsc, &cl->cl_fsc);
-	rtsc_init(&cl->cl_virtual, &cl->cl_fsc, cl->cl_vt, cl->cl_total);
+	rtsc_init(&cl->cl_virtual, &cl->cl_fsc, cl->cl_vtoff + cl->cl_vt, cl->cl_total);
 	cl->cl_flags |= HFSC_FSC;
 }
 
-- 
2.1.3