Re: [PATCH 2/2] asm-generic: Don't warn that atomic_t is only 24bit

[Mathieu Desnoyers]

* Arnd Bergmann (arnd@xxxxxxxx) wrote:
> On Wednesday 28 April 2010, Peter Fritzsche wrote:
> > 32-bit Sparc used to only allow usage of 24-bit of it's atomic_t type.
> > This was corrected with linux 2.6.3 when Keith M Wesolowski changed the
> > implementation to use the parisc approach of having an array of
> > spinlocks to protect the atomic_t.
> > 
> > These warnings were also removed from the sparc implementation when the
> > new implementation was merged in BKrev:402e4949VThdc6D3iaosSFUgabMfvw,
> > but the warning still remained in some other places without any
> > 24-bit-only atomic_t implementation inside the kernel.
> > 
> > We should remove these warnings to allow users to rely on the full
> > 32-bit range of atomic_t.
> > 
> > Signed-off-by: Peter Fritzsche <peter.fritzsche@xxxxxx>
> 
> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>

AFAIK that was the last architecture imposing limitations below 32 bits
on atomic_t.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>


-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
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