PATCH powerpc Merge asm-ppc*/rwsem.h
dhowells at redhat.com
Fri Sep 23 17:32:20 EST 2005
Jon Loeliger <jdl at freescale.com> 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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