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net: sched: track rtnl lock status when validating extensions

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Actions API is already updated to not rely on rtnl lock for
synchronization. However, it need to be provided with rtnl status when
called from classifiers API in order to be able to correctly release the
lock when loading kernel module.

Extend extension validation function with 'rtnl_held' flag which is passed
to actions API. Add new 'rtnl_held' parameter to tcf_exts_validate() in cls
API. No classifier is currently updated to support unlocked execution, so
pass hardcoded 'true' flag parameter value.

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 2019-02-11 10:55:43 +02:00 • committed by David S. Miller
parent 726d061286
commit ec6743a109
13 changed files with 21 additions and 16 deletions
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2
net/sched/cls_basic.c
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@ -153,7 +153,7 @@ static int basic_set_parms(struct net *net, struct tcf_proto *tp,
{
int err;
err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, extack);
err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, true, extack);
if (err < 0)
return err;