Date: Tue, 27 Aug 1996 12:10:14 -0500 (EST) From: "John S. Dyson" <toor@dyson.iquest.net> To: terry@lambert.org (Terry Lambert) Cc: dyson@FreeBSD.org, terry@lambert.org, sysseh@devetir.qld.gov.au, freebsd-fs@FreeBSD.org, eric@ms.uky.edu Subject: Re: The VIVA file system (fwd) Message-ID: <199608271710.MAA00624@dyson.iquest.net> In-Reply-To: <199608271533.IAA24689@phaeton.artisoft.com> from "Terry Lambert" at Aug 27, 96 08:33:53 am
next in thread | previous in thread | raw e-mail | index | archive | help
> > I am tonight porting LFS, maybe with some luck will get it to work. However, > > the FreeBSD VM/Buffer cache stuff affects the filesystem only slightly esp. > > now. The biggest issue in porting from the old Lite stuff is getting > > rid of gratuitious vnode_pager_uncaches, and changing the ordering of > > some operations slightly. > > Any chance you can replace them with a null macro, instead of just diking > them out, in order to make the code less VM implementation dependent? > I'll try, but my main purpose is: 1) A diversion, because even though I love the VM stuff, I am kind-of tired of it right now. 2) Get enough of it running, so that someone else can make it work "well" and/or productize it. My mainline plate is overwhelmingly full. 3) The fact that LFS hasn't been working is a festering sore, and I am mostly putting anti-bacterial ointment on it :-), so the limb doesn't fall off :-). Most, if not all of the changes that I am making are bugfixes. The frequency of vnode_pager_uncache use in the old fs code (for example) is simply wrong, and if I work on LFS too much, it'll simply get rewritten to aggressively use the VM system and elimimate lots of very evil copies :-). Then, diffs or ifdefs will be of NO value :-). John
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199608271710.MAA00624>