Date: Fri, 11 Aug 2006 00:29:42 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Craig Boston <craig@xfoil.gank.org>, freebsd-fs@FreeBSD.org, freebsd-current@FreeBSD.org, freebsd-geom@FreeBSD.org Subject: Re: GJournal (hopefully) final patches. Message-ID: <20060810222942.GA1389@garage.freebsd.pl> In-Reply-To: <20060810210535.GA9065@nowhere> References: <20060808195202.GA1564@garage.freebsd.pl> <20060810184702.GA8567@nowhere> <20060810192841.GA1345@garage.freebsd.pl> <20060810210535.GA9065@nowhere>
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--opJtzjQTFsWo+cga Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 10, 2006 at 04:05:35PM -0500, Craig Boston wrote: > On Thu, Aug 10, 2006 at 09:28:41PM +0200, Pawel Jakub Dawidek wrote: > > When you mount file system it sends BIO_GETATTR "GJOURNAL::provider" > > requests. So as long as classes between the file system and gjournal > > provider pass BIO_GETATTR down, it will work. > >=20 > > I prefer to put gjournal on the top, because it gives consistency to > > layers below it. [...] > > > > [snip] > >=20 > > Fortunatelly with GEOM you can freely mix your puzzles. >=20 > Would there be any ill effects to putting multiple filesystems inside a > single gjournal, say with a bsdlabel or gpt on it? I don't see any problems with such configuration, but there are no optimization like "synchronize all file systems and then switch journals", so it will go like "synchronize one file system switch journals, synchronize another file system, switch journals, etc.". --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --opJtzjQTFsWo+cga Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (FreeBSD) iD8DBQFE27NWForvXbEpPzQRAgIBAKDdvEiLIsHM/Pgfh4WfDe1ruU4p0ACggHvi 0XASFxTKlzxDY2tYBtHeiTM= =9MBA -----END PGP SIGNATURE----- --opJtzjQTFsWo+cga--
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