Re: Question regarding to store file system metadata in database

[Miklos Szeredi]

> Why not use a DB?  Because most databases's are big and bloated and
> not something you want to have in the kernel (not even Hans Reiser was
> crazy enough to propose stuffing an SQL interpreter into the kernel :-)
> --- and if you put the generic database (complete with SQL interpreter
> and all the rest) in userspace, doing upcalls into userspace, and then
> having to have the database interpret the SQL query, etc., takes time.
> 
> If you don't care about performance, by all means, try using FUSE and
> implementing a user-space filesystem.  It will be slow as all get-out,
> but maybe it won't matter for your application.

Something like this has already been done:

  http://www.noofs.org/

Miklos
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