PATCH powerpc Merge asm-ppc*/rwsem.h

David Howells dhowells at
Fri Sep 23 17:32:20 EST 2005

Jon Loeliger <jdl at> wrote:

> Merge asm-ppc*/rwsem.h into include/asm-powerpc.
> Removed smp_*mb() memory barriers from the ppc32 code
> as they are now burried in the atomic_*() functions as
> suggested by Paul, implemented by Arnd, and pushed out
> by Becky.  I am not the droid you are looking for.

rwsems on ppc64 should really be using a 64-bit counter, not a 32-bit counter,
otherwise you limit the maximum number of processes to 32K-ish.

The counter should be "signed long" really.


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