Date: Fri, 6 Feb 1998 15:10:58 -0500 (EST) From: "John S. Dyson" <toor@dyson.iquest.net> To: tlambert@primenet.com (Terry Lambert) Cc: kato@migmatite.eps.nagoya-u.ac.jp, current@FreeBSD.ORG Subject: Re: unionfs clobbers a file Message-ID: <199802062010.PAA00937@dyson.iquest.net> In-Reply-To: <199802061926.MAA15103@usr01.primenet.com> from Terry Lambert at "Feb 6, 98 07:26:08 pm"
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Terry Lambert said: > > Pages are hung off the vnode, when the vnode pager is using the file > for backing store. > Pages are hung off of a VM object, which might optionally be aliased by multiple vnodes. > > The harder fix is to add a VOP_FINALVP to all local media filesystems. > Adding a VOP_FINALVP will allow an upper layer to get the backing > vnode for a VM object, not matter how buried by other stacks it becomes. > This fix will have three consequences: > I kind of like that. -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig.
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