Date: Wed, 13 Sep 2006 16:23:29 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Christian Laursen <xi@borderworlds.dk> Cc: freebsd-stable@freebsd.org Subject: Re: gjournal and Softupdates Message-ID: <20060913142329.GC70245@garage.freebsd.pl> In-Reply-To: <ygfirjto0z2.fsf@dominion.borderworlds.dk> References: <45066E19.2040405@kuehlbox.de> <ee5vat$fcb$1@sea.gmane.org> <ygfirjto0z2.fsf@dominion.borderworlds.dk>
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--HWvPVVuAAfuRc6SZ Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Sep 12, 2006 at 12:04:01PM +0200, Christian Laursen wrote: > Ivan Voras <ivoras@fer.hr> writes: >=20 > > - todays desktop drives can lie about writing data. SoftUpdates relies > > on some assumptions about when the data is physically written to > > media, and those are not always valid today >=20 > I think journaling relies on the same assumptions. Not gjournal, because it uses BIO_FLUSH I/O requests which flushes disk write cache when needed. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --HWvPVVuAAfuRc6SZ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (FreeBSD) iD8DBQFFCBRhForvXbEpPzQRAg+FAKCYMD1uZ4ppB0+SKQ83F1zac3Tl5wCfbGtu eWoun4Ozf4ajchr2V9ALZc8= =hEmD -----END PGP SIGNATURE----- --HWvPVVuAAfuRc6SZ--
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