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net: sched: rename qdisc_destroy() to qdisc_put()

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Current implementation of qdisc_destroy() decrements Qdisc reference
counter and only actually destroy Qdisc if reference counter value reached
zero. Rename qdisc_destroy() to qdisc_put() in order for it to better
describe the way in which this function currently implemented and used.

Extract code that deallocates Qdisc into new private qdisc_destroy()
function. It is intended to be shared between regular qdisc_put() and its
unlocked version that is introduced in next patch in this series.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Buslov
2018-09-24 19:22:50 +03:00
committed by David S. Miller
parent 6f99528e97
commit 86bd446b5c
20 changed files with 47 additions and 42 deletions
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6
net/sched/sch_api.c
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@@ -920,7 +920,7 @@ static void notify_and_destroy(struct net *net, struct sk_buff *skb,
qdisc_notify(net, skb, n, clid, old, new);
if (old)
qdisc_destroy(old);
qdisc_put(old);
}
/* Graft qdisc "new" to class "classid" of qdisc "parent" or
@@ -973,7 +973,7 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
qdisc_refcount_inc(new);
if (!ingress)
qdisc_destroy(old);
qdisc_put(old);
}
skip:
@@ -1561,7 +1561,7 @@ graft:
err = qdisc_graft(dev, p, skb, n, clid, q, NULL, extack);
if (err) {
if (q)
qdisc_destroy(q);
qdisc_put(q);
return err;
}