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

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Date:	Tue, 07 Jul 2015 15:16:48 +0200
From:	Oliver Neukum <oneukum@...e.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Dave Chinner <david@...morbit.com>, Len Brown <lenb@...nel.org>,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Alan Stern <stern@...land.harvard.edu>,
	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 Tue, 2015-07-07 at 14:14 +0200, Rafael J. Wysocki wrote:
> For example, on desktop systems I use user space syncs filesystems
> before
> writing to /sys/power/state, so the additional sys_sync() in the
> kernel doesn't
> seem to serve any purpose.

There is a race you cannot close in user space.

	Regards
		Oliver


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