linux-kernel - Re: [PATCH 20/32] aio: Give shared kioctx fields their own cachelines

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: <20130103152512.009513a1.akpm@linux-foundation.org>
Date:	Thu, 3 Jan 2013 15:25:12 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Kent Overstreet <koverstreet@...gle.com>
Cc:	linux-kernel@...r.kernel.org, linux-aio@...ck.org,
	linux-fsdevel@...r.kernel.org, zab@...hat.com, bcrl@...ck.org,
	jmoyer@...hat.com, axboe@...nel.dk, viro@...iv.linux.org.uk,
	tytso@....edu
Subject: Re: [PATCH 20/32] aio: Give shared kioctx fields their own
 cachelines

On Wed, 26 Dec 2012 17:59:59 -0800
Kent Overstreet <koverstreet@...gle.com> wrote:

>  	struct {
> -		struct mutex	ring_lock;
> +		atomic_t	reqs_active;
>  	} ____cacheline_aligned;

Is there a reason why this guy remains aligned on CONFIG_SMP=n?

--
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/