17 Mar
2005
17 Mar
'05
7:30 p.m.
I think this might be a little restrictive.
A NT filesystem doesn't have to operate solely in kernel
mode. The kernel mode component is free to delegate work
to a usermode component if it chooses. (In fact, if
I'm not mistaken, Microsoft's webdav filesystem driver
works this way.)
The WebDAV component of MS I know is completely in usermode. It is
just a
shell namespace extension.
If you meant DFS - this uses reparse points which "delegate" their work to
the DFS service (i.e. usermode). That's true, but this is not a full-blown
FS because of this - it's just another FS filter.
I believe boot filesystems have special requirements
above and
beyond other filesystems. (Like freeloader has to understand
enough of it's on disk layout to load a driver off of it.)
Yap. That's
surely true. Which would not be a problem in ROS (because we
have the source *g*), but on NT. And I said "potentially" exactly because of
this. But you cannot mount a filesystem relying on MySQL (a usermode
process) early during boot process.
Maybe this question should be asked in the NTFSD list - because it is about
the definition of FS in NT. I just doubt that the description we currently
have of this project qualifies it as "file system" in the classical sense.
Nevertheless it may be a coll thing ;)
Oliver
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