This is a note to let you know that I've just added the patch titled
net: fix suspicious rcu_dereference_check in net/sched/sch_fq_codel.c
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-fix-suspicious-rcu_dereference_check-in-net-sched-sch_fq_codel.c.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From foo@baz Sun Dec 14 08:37:47 PST 2014
From: "[email protected]" <[email protected]>
Date: Tue, 9 Dec 2014 16:15:50 -0500
Subject: net: fix suspicious rcu_dereference_check in net/sched/sch_fq_codel.c
From: "[email protected]" <[email protected]>
[ Upstream commit 69204cf7eb9c5a72067ce6922d4699378251d053 ]
commit 46e5da40ae (net: qdisc: use rcu prefix and silence
sparse warnings) triggers a spurious warning:
net/sched/sch_fq_codel.c:97 suspicious rcu_dereference_check() usage!
The code should be using the _bh variant of rcu_dereference.
Signed-off-by: Valdis Kletnieks <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Acked-by: John Fastabend <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/sched/sch_fq_codel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -94,7 +94,7 @@ static unsigned int fq_codel_classify(st
TC_H_MIN(skb->priority) <= q->flows_cnt)
return TC_H_MIN(skb->priority);
- filter = rcu_dereference(q->filter_list);
+ filter = rcu_dereference_bh(q->filter_list);
if (!filter)
return fq_codel_hash(q, skb) + 1;
Patches currently in stable-queue which might be from [email protected]
are
queue-3.18/net-fix-suspicious-rcu_dereference_check-in-net-sched-sch_fq_codel.c.patch
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