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Re: [PATCH] cgroup: net_cls: fix false-positive "suspicious RCU usage"

From David Miller <davem@davemloft.net>
Newsgroups linux.kernel
Subject Re: [PATCH] cgroup: net_cls: fix false-positive "suspicious RCU usage"
Date 2015-07-22 07:30 +0200
Message-ID <pOULp-5OL-23@gated-at.bofh.it> (permalink)
References <pOITU-5xi-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Date: Tue, 21 Jul 2015 19:46:29 +0300

> @@ -23,7 +23,8 @@ static inline struct cgroup_cls_state *css_cls_state(struct cgroup_subsys_state
>  
>  struct cgroup_cls_state *task_cls_state(struct task_struct *p)
>  {
> -	return css_cls_state(task_css(p, net_cls_cgrp_id));
> +       return css_cls_state(task_css_check(p, net_cls_cgrp_id,
> +			       rcu_read_lock_bh_held()));

You've made a serious mess of the indentation here.

First of all, you've changed the correct plain "TAB" before the 'return' line
into a TAB and two SPACE characters.

Secondly, the second line needs to be precisely indented to the exact column
following the openning parenthesis of the task_css_check() call on the
previous line.
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Re: [PATCH] cgroup: net_cls: fix false-positive "suspicious RCU  usage" David Miller <davem@davemloft.net> - 2015-07-22 07:30 +0200

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