lkml.org 
[lkml]   [2012]   [Dec]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: new architectures, time_t __kernel_long_t
On Thu, Dec 20, 2012 at 09:00:27PM -0800, H. Peter Anvin wrote:
> On 12/20/2012 08:57 PM, Al Viro wrote:
> > On Wed, Nov 14, 2012 at 12:18:01PM +0000, Arnd Bergmann wrote:
> >
> >> The other types that are used as 64 bit on x32 are ino_t, nlink_t,
> >> size_t, ssize_t, ptrdiff_t, and off_t.
> >
> > *Kernel-side* we should not give a damn about the userland nlink_t, period.
> > Making it architecture-dependent had been a bad mistake that essentially
> > made nlink_t useless for the kernel. That mistake had been fixed; please,
> > do not bring it back. If some userland structure needs to include a field
> > encoding nlink_t values, please use an explicitly-sized type when refering
> > to it kernel-side.
> >
>
> We should never use userland types per se. We can use __kernel_*_t
> typedefs to make the kernel headers neater if it makes sense, but that
> is often not even necessary.

... as long as we do not have typedef __kernel_foo_t foo_t in linux/types.h.


\
 
 \ /
  Last update: 2012-12-21 06:41    [W:0.063 / U:1.848 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site