Date: Tue, 1 Mar 2005 00:08:20 +0000 From: Thomas Sparrevohn <Thomas.Sparrevohn@btinternet.com> To: freebsd-hackers@freebsd.org Subject: Re: RFC: backporting GEOM to the 4.x branch Message-ID: <200503010008.20675.Thomas.Sparrevohn@btinternet.com> In-Reply-To: <42226293.7040603@FreeBSD.org> References: <20050227213032.CCB973700F@arioch.imrryr.org> <42226293.7040603@FreeBSD.org>
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On Monday 28 February 2005 00:15, Maxim Sobolev wrote: > Roland Dowdeswell wrote: > > [ cc'ing tech-security@NetBSD.org, because there has been talk > > of GBDE there in the past.] > > So what? If the write fails in the middle, reading sector will just > produce garbage. I don't think that it's different from plain old HDD > which has been powered down in the middle of doing disk write. Disk > encryption layer is definitely not the level at which journaling should > be implemented. It's task of file system to do this. The task of > encryption layer is merely to inform the file system when transaction > (i.e. both of those two writes in this case) have been completed > successfully, so that FS can adjust its journal accordingly. > > -Maxim I could be wrong but I would assume that if it is correctly handled within softupdates there should be no need for journalling - e.g. If both transactions are not completed the writes are ignored
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