lkml.org 
[lkml]   [2012]   [Jan]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/3] percpu: use ZERO_SIZE_PTR / ZERO_OR_NULL_PTR
On Mon, 30 Jan 2012, Tejun Heo wrote:

> Percpu pointers are in a different address space and using
> ZERO_SIZE_PTR directly will trigger sparse address space warning.
> Also, I'm not entirely sure whether 16 is guaranteed to be unused in
> percpu address space (maybe it is but I don't think we have anything
> enforcing that).

We are already checking for NULL on free. So there is a presumption that
these numbers are unused.



\
 
 \ /
  Last update: 2012-01-30 18:25    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site