lkml.org 
[lkml]   [2003]   [Jun]   [7]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH][ATM] use rtnl_{lock,unlock} during device operations (take 2)
DateSat, 07 Jun 2003 07:06:42 -0400
Fromchas williams <>
In message <20030606211005.H3232@almesberger.net>,Werner Almesberger writes:
>The data plane, yes. But the control/configuration plane is
>synchronous. And it also makes sure that the driver stops
>doing asynchronous things when removing a VCC.

i forgot to mention that this is difficult with the way most of the
atm drivers are written.  in smp kernels, you cant disable interrupts
across all processors to keep the drivers bottom halves from running.
(ok, you could but it would be very naughty).  if the bottom halves were
tasklets this would be easy, but most drivers would need converted.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:36    [from the cache]
©2003-2008