linux-kernel - Re: [PATCH 1/2] Traffic control cgroups subsystem

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <48AE204F.307@cn.fujitsu.com>
Date:	Fri, 22 Aug 2008 10:11:27 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Ranjit Manomohan <ranjitm@...gle.com>
CC:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	menage@...gle.com, kaber@...sh.net, akpm@...ux-foundation.org
Subject: Re: [PATCH 1/2] Traffic control cgroups subsystem

> +static unsigned int cgroup_tc_classid(struct task_struct *tsk)
> +{
> +	unsigned int tc_classid;
> +
> +	rcu_read_lock();
> +	tc_classid =  container_of(task_subsys_state(tsk, tc_subsys_id),

trivial: 2 spaces   ^^

> +					 struct tc_cgroup, css)->classid;
> +	rcu_read_unlock();
> +	return tc_classid;
> +}
> +

...

> +static int tc_write_u64(struct cgroup *cgrp, struct cftype *cft, u64 val)
> +{
> +	struct tc_cgroup *tc = cgroup_to_tc(cgrp);
> +
> +	cgroup_lock();
> +	if (cgroup_is_removed(cgrp)) {
> +		cgroup_unlock();
> +		return -ENODEV;
> +	}
> +

You may use cgroup_lock_live_group():

	if (cgroup_lock_live_group(cgrp0))
		return -ENODEV;

> +	tc->classid = (unsigned int) (val & 0xffffffff);
> +	cgroup_unlock();
> +	return 0;
> +}
> +
> +static u64 tc_read_u64(struct cgroup *cont, struct cftype *cft)

'cont', 'cgrp' and 'cgroup' are used, it's better to make it consistent
to use 'cgrp' (or 'cgroup') only.

> +{
> +	struct tc_cgroup *tc = cgroup_to_tc(cont);
> +	return tc->classid;
> +}
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/