On Mon, Jan 08, 2007 at 07:03:35PM -0500, Erez Zadok wrote:
> However, I must caution that a file system like ecryptfs is very different
> from Unionfs, the latter being a fan-out file system---and both have very
> different goals. The common code between the two file systems, at this
> stage, is not much (and we've already extracted some of it into the "stackfs
> layer").
I think that's an very important point. We have a chance to get that
non-fanout filesystems right quite easily - something I wished that would
have been done before the ecryptfs merge - while getting fan-out stackable
filesystems is a really hard task. In addition to that I know exactly
one fan-out stackable filesystem that is posisbly useful, which is unionfs.
Because of that I'm much more inclined to add VFS asistance for this
particular problem (unioning) instead of adding complex infrastructure
to solve a general problem that people don't benefit from.
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