lkml.org 
[lkml]   [2000]   [Oct]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PROPOSED PATCH] ATM refcount + firestream
Philipp Rumpf wrote:
>
> On Sat, Oct 28, 2000 at 09:37:28AM -0400, Brian Gerst wrote:
> > Philipp Rumpf wrote:
> > > - you can't copy_(from|to)_user in the module exit function (which would
> > > be copies from/to rmmod anyway)
> >
> > Unfortunately, you need to be able to use copy_*_user() from the network
> > ioctls, and this is the center of the current issue.
>
> You misunderstood. The network ioctls aren't module_exit functions, so
> copy_*_user in them is fine.

Yes, but they can be called (and sleep) with module refcount == 0. This
is because the file descripter used to perform the ioctl isn't directly
associated with the network device, thereby not incrementing the
refcount on open.

--

Brian Gerst
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:45    [from the cache]
©2003-2011 Jasper Spaans