Date: Mon, 19 Jul 1999 22:36:21 -0700 From: John Milford <jwm@CSUA.Berkeley.EDU> To: "David E. Cross" <crossd@cs.rpi.edu> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: USFS (User Space File System) Message-ID: <199907200536.WAA25700@soda.CSUA.Berkeley.EDU> In-Reply-To: Message from "David E. Cross" <crossd@cs.rpi.edu> of "Sat, 17 Jul 1999 14:57:45 EDT." <199907171857.OAA81681@cs.rpi.edu>
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David, Unless I am misunderstanding you, mfs does what you are describing. --John "David E. Cross" <crossd@cs.rpi.edu> wrote: > I am looking at a project that will require a user based process to interact > with the system as if it were a filesystem. The traditional way I have seen > this done is as the system NFS mounting itself (ala AMD). I would really lik e > a more clean approach to this. What I am interested in is a 'User Space > File System' that would interact with a user process in a similiar manor > to how nfsd's do. A process would issue a mount (ok, this is different than > NFSDs), then it would make a special system call with a structure, that > call would return whenever a request was pending with the structure filled in > with the appropriate information. The user process would fulfill the request , > pack the return data into the structure and call kernel again. > > I have a number of questions on more specific ideas (like caching, inode/vnod e > interaction, etc). But I am just feeling arround for what people think > about this. Any ideas/comments? > > -- > David Cross | email: crossd@cs.rpi.edu > Systems Administrator/Research Programmer | Web: http://www.cs.rpi.edu/~cross d > Rensselaer Polytechnic Institute, | Ph: 518.276.2860 > Department of Computer Science | Fax: 518.276.4033 > I speak only for myself. | WinNT:Linux::Linux:FreeBSD > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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