Messages in this thread | | | From | Nikita Danilov <> | Date | Fri, 27 Aug 2004 01:33:52 +0400 | Subject | Re: silent semantic changes with reiser4 |
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Christophe Saout writes: > Am Freitag, den 27.08.2004, 00:30 +0400 schrieb Dmitry Baryshkov: > > > Another example: Can ext2/etx3/reiserfsv3/xfs be implemented as reiser4 > > plugins? From Hans' words it seems so. If this is correct, then maybe > > reiser4 core should be updated to completely replace current VFS layer? > > Then it's a good point to create a branch (in old development model it > > would be 2.7, dunno for new :), replace VFS layer with reiser4 core, and > > rewrite all (or at least most used) FS as reiser4 plugins. Then > > everybody will be happy. > > > > But this looks too good to be true. Perhaps I misunderstood Hans' words > > aboud 'new disk format', did I? > > No. You can change the format the reiser4 storage tree is stored in. As > long as other filesystems don't use the same underlying storage tree > this is not possible.
Wrong, plugin is called just below entry point from the VFS to the file-system back-end. It can use reiser4 tree, or any storage layer it wants. Or none at all: think about pseudo-files like foo/metas/uid---they are also implemnted by plugins.
Programmer dedicated enough can (besides programming Fortran in any language), write reiser4 plugin for any file-system. I will leave description of this activity to people with better command over English language.
Nikita.
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