From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nigel Cunningham Subject: Re: Freeze the FUSE on Wubi Date: Fri, 16 Oct 2009 22:27:05 +1100 Message-ID: <4AD85889.9010206@crca.org.au> References: <814979.58291.qm@web112806.mail.gq1.yahoo.com> <20091016115854.1e476da8@strolchi.home.s3e.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20091016115854.1e476da8@strolchi.home.s3e.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Stefan Seyfried Cc: linux-pm@lists.linux-foundation.org List-Id: linux-pm@vger.kernel.org Hi. Stefan Seyfried wrote: > On Fri, 16 Oct 2009 01:54:10 -0700 (PDT) > Nick Davies wrote: > >> Dear all, >> >> I am trying to debug the suspend/hibernate on Wubi(The Ubuntu >> installer for Windows) these day. Since Ubuntu sits on top of NTFS >> partition with the help of ntfs-3g via FUSE, I think it should not >> pass the file system freezing stage, but in fact, the suspend works >> well on my machine. So I am curious that how can they achieve that? >> Just keep the FUSE alive to the end of the suspend? Any ideas are >> welcome. > > (Disclaimer: all below is AFAIK and it might be slightly wrong) > On swapon(), a block map of the file / partition is made by the kernel > and later I/O to the swap area are not going through the filesystem > layer. So FUSE is not involved in the suspend process at the stage of > image writing. It's exactly right. Regards, Nigel