RE: [Dazuko-devel] dazukoFS - redirFS

[Patrick Bihan-Faou]

Hi,

> I have spent last few weeks trying to find the best way how to implement
> dazukoFS (how to catch proper VFS events needed for on-access scanning).
> One way is to use the FiST generator for transparent file systems. FiST
> creates whole file system by duplicating VFS objects (super block, dentry,
> inode, file) and linking them with objects in the lower layer (native file
> system or other transparent file system). Because creating almost the
> whole file system only to catch some VFS events is too much effort and
> waste of time, I started to play directly with VFS object's operations.


This is interesting, but to me the greatest interest of the VFS approach
using FiST was to benefit from the portability of FiST beyond just Linux.

How do you plan on supporting OS like Solaris or FreeBSD with this code ? It
does sound like a duplication of effort, but I may be mistaken.

>From a few of the paper that I read on the subject, I don't think that the
processing overhead introduced by the extra work FiST does is really a
problem.

Any thoughts ?


Patrick.