lkml.org 
[lkml]   [2008]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 5/7] FUSE: implement ioctl support
Eric W. Biederman wrote:
> I really think that if an ioctl is passing through the kernel we
> should know how to parse and understand it's options. Otherwise
> we won't have the option of doing backwards compatibility when something
> changes, like we can with the 32->64bit ioctls.

There's no reason 32->64bit can't be handled in userland? What's the
difference?

> That seems to imply that you need a stub in the kernel to handle
> really weird ioctls.
>
> The upside is that because you know what the inputs and outputs are
> and where the inputs and output are you can support that ioctl well
> into the future, and you can do it with an unprivileged file
> system server.

Well, kernel stub kind of beats a lot of benefits of FUSE - no
specific kernel dependencies, easy development and distribution,
etc...

Thanks.

--
tejun


\
 
 \ /
  Last update: 2008-09-03 16:45    [W:0.100 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site