linux-kernel - Re: [RFC][patch 8/11][CFQ-cgroup] Control cfq

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Thu, 3 Apr 2008 08:35:04 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Satoshi UCHIDA" <s-uchida@...jp.nec.com>
Cc:	linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org, axboe@...nel.dk,
	tom-sugawara@...jp.nec.com, m-takahashi@...jp.nec.com
Subject: Re: [RFC][patch 8/11][CFQ-cgroup] Control cfq_data per cgroup

On Tue, Apr 1, 2008 at 2:38 AM, Satoshi UCHIDA <s-uchida@...jp.nec.com> wrote:
>  +
>  +static void *cfq_cgroup_init_cfq_data(struct cfq_cgroup *cfqc, struct cfq_data *cfqd)
>  +{
>  +       struct cgroup *child;
>  +
>  +       /* setting cfq_data for cfq_cgroup */
>  +       if (!cfqc) {
>  +               cfqc = cgroup_to_cfq_cgroup(get_root_subsys(&cfq_cgroup_subsys));

Rather than adding get_root_subsys(), can't you just keep a reference
locally to your root subsystem state?

Paul
--
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/