linux-kernel - Re: [PATCH 1/1] suspend: delete sys

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: <1431411098.5048.3.camel@suse.com>
Date:	Tue, 12 May 2015 08:11:38 +0200
From:	Oliver Neukum <oneukum@...e.com>
To:	Len Brown <lenb@...nel.org>
Cc:	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Alan Stern <stern@...land.harvard.edu>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Linux PM list <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Len Brown <len.brown@...el.com>
Subject: Re: [PATCH 1/1] suspend: delete sys_sync()

On Mon, 2015-05-11 at 16:34 -0400, Len Brown wrote:
> But upon reflection, I do not believe that the kernel is adding value
> here,
> instead it is imposing a policy, and that policy decision is sometimes
> prohibitively expensive.
> User-space can do this for itself (and in the case of desktop distros,
> already does),
> and so the kernel should butt-out.

There is however a race condition with doing it in user space.
So adding a parameter to select behavior would increase safety a bit.

	Regards
		Oliver


--
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/