Date: Sun, 22 Apr 2007 14:38:52 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Ivan Voras <ivoras@fer.hr> Cc: freebsd-geom@freebsd.org Subject: Re: gjournal & async Message-ID: <20070422123852.GA52622@garage.freebsd.pl> In-Reply-To: <f0eb3i$97s$2@sea.gmane.org> References: <f0eb3i$97s$2@sea.gmane.org>
next in thread | previous in thread | raw e-mail | index | archive | help
--jRHKVT23PllUwdXP Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Apr 22, 2007 at 02:43:29AM +0200, Ivan Voras wrote: > How does gjournal guarantee corectness if UFS is mounted async? AFAIK > the "async" handling of IO requests is done by the UFS, the writes are > not rescheduled at the GEOM layer? GJournal has some minimum knowledge about VFS. Before it does journal switch, it synchronize and suspends file system. This way we can be sure everything is on disk in a consistent state. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --jRHKVT23PllUwdXP Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFGK1dcForvXbEpPzQRAuP0AJ9eoDQFYDxPcmcNwtXK9aF8GSPF9wCghcQF sRXrTWffigHFo0Dq7RqBhmo= =e3hd -----END PGP SIGNATURE----- --jRHKVT23PllUwdXP--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070422123852.GA52622>