Re: [fuse-devel] [PATCH 5/7] FUSE: implement ioctl support

[Tejun H. <tj...@ke...>]

Greg KH wrote:
> Why do we need ioctls?  For CUSE?  In that case, would we need to copy
> the memory from userspace, into the kernel, and then back out into
> userspace again?  Can't we just have a "pass-through" type fixed ioctl
> instead?

Can you elaborate a bit?  How the fixed ioctl would know how much to
copy in and out and from where?

Thanks.

-- 
tejun