linux-kernel - Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature

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]

Message-ID: <20170228122654.GF5680@worktop>
Date:   Tue, 28 Feb 2017 13:26:54 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Byungchul Park <byungchul.park@....com>
Cc:     mingo@...nel.org, tglx@...utronix.de, walken@...gle.com,
        boqun.feng@...il.com, kirill@...temov.name,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        iamjoonsoo.kim@....com, akpm@...ux-foundation.org,
        npiggin@...il.com
Subject: Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature

On Wed, Jan 18, 2017 at 10:17:32PM +0900, Byungchul Park wrote:
> +	/*
> +	 * Each work of workqueue might run in a different context,
> +	 * thanks to concurrency support of workqueue. So we have to
> +	 * distinguish each work to avoid false positive.
> +	 *
> +	 * TODO: We can also add dependencies between two acquisitions
> +	 * of different work_id, if they don't cause a sleep so make
> +	 * the worker stalled.
> +	 */
> +	unsigned int		work_id;

I don't understand... please explain.