Re: [PATCH] fuse: Add support for fuse stacked I/O

On Thu, Jan 14, 2016 at 07:52:00AM -0800, Nikolaus Rath wrote:

quoted

Please write your stacked features as kernel drivers.

Could you explain in more detail? I think I don't understand either the
why, the how, or what you mean with driver in this context (not sure
which one it is). 


(I'm not the original submitter but interested in this)

If someone is doing stacked pass through I/O, which basically is some
form of unioning or file hiding it should be using overlayfs or a new
kernel stackable file system.  That's not to say it could be prototyped
entirely in userspace, but it's not something we should add any bypasses
for.