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[PATCH 3.19.y-ckt 34/40] sch_dsmark: update backlog as well

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3.19.8-ckt22 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: WANG Cong <xiyou.wangcong@gmail.com>

[ Upstream commit bdf17661f63a79c3cb4209b970b1cc39e34f7543 ]

Similarly, we need to update backlog too when we update qlen.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/sched/sch_dsmark.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 11f9530..eb87a2a 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -256,6 +256,7 @@ static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 		return err;
 	}
 
+	qdisc_qstats_backlog_inc(sch, skb);
 	sch->q.qlen++;
 
 	return NET_XMIT_SUCCESS;
@@ -278,6 +279,7 @@ static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
 		return NULL;
 
 	qdisc_bstats_update(sch, skb);
+	qdisc_qstats_backlog_dec(sch, skb);
 	sch->q.qlen--;
 
 	index = skb->tc_index & (p->indices - 1);
@@ -393,6 +395,7 @@ static void dsmark_reset(struct Qdisc *sch)
 
 	pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p);
 	qdisc_reset(p->q);
+	sch->qstats.backlog = 0;
 	sch->q.qlen = 0;
 }
 
-- 
2.7.4

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[3.19.y-ckt stable] Linux 3.19.8-ckt22 stable review Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 29/40] ipv4/fib: don't warn when primary address is missing if in_dev is dead Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 39/40] net: bridge: fix old ioctl unlocked net device walk Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 26/40] route: do not cache fib route info on local routes with oif Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 20/40] net: fec: only clear a queue's work bit if the queue was emptied Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 10/40] get_rock_ridge_filename(): handle malformed NM entries Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 30/40] bpf: fix double-fdput in replace_map_fd_with_map_ptr() Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 19/40] nf_conntrack: avoid kernel pointer value leak in slab name Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 15/40] tools lib traceevent: Free filter tokens in process_filter() Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 02/40] [3.19-stable only] fix backport "IB/security: restrict use of the write() interface" Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 21/40] net/mlx4_en: Fix endianness bug in IPV6 csum calculation Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
    RE: [PATCH 3.19.y-ckt 21/40] net/mlx4_en: Fix endianness bug in IPV6  csum calculation Tariq Toukan <tariqt@mellanox.com> - 2016-05-26 11:00 +0200
  [PATCH 3.19.y-ckt 23/40] tcp: refresh skb timestamp at retransmit time Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 25/40] decnet: Do not build routes to devices without decnet private data. Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 31/40] net_sched: introduce qdisc_replace() helper Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 34/40] sch_dsmark: update backlog as well Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 40/40] net: fix a kernel infoleak in x25 module Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 24/40] arm64: bpf: jit JMP_JSET_{X,K} Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 28/40] vlan: pull on __vlan_insert_tag error path and fix csum correction Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 18/40] ocfs2: fix posix_acl_create deadlock Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:40 +0200
  [PATCH 3.19.y-ckt 16/40] tools lib traceevent: Do not reassign parg after collapse_tree() Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:50 +0200
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  [PATCH 3.19.y-ckt 01/40] compiler-gcc: integrate the various compiler-gcc[345].h files Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:50 +0200
  [PATCH 3.19.y-ckt 06/40] regmap: spmi: Fix regmap_spmi_ext_read in multi-byte case Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:50 +0200
  [PATCH 3.19.y-ckt 14/40] ALSA: hda - Fix subwoofer pin on ASUS N751 and N551 Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:50 +0200
  [PATCH 3.19.y-ckt 12/40] Input: max8997-haptic - fix NULL pointer dereference Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:50 +0200
  [PATCH 3.19.y-ckt 05/40] regulator: s2mps11: Fix invalid selector mask and voltages for buck9 Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:50 +0200
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  [PATCH 3.19.y-ckt 04/40] [3.19-stable] x86: LLVMLinux: Fix "incomplete type const struct x86cpu_device_id" Kamal Mostafa <kamal@canonical.com> - 2016-05-25 19:50 +0200
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