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From: Andreas Schwab <schwab@linux-m68k.org>
To: Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH] KVM: PPC: elide struct thread_struct instances from stack
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Date: Tue, 01 Jun 2010 10:36:21 +0200
In-Reply-To: <20100531224040.GA22927@brick.ozlabs.ibm.com> (Paul Mackerras's
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Cc: linuxppc-dev@ozlabs.org, Alexander Graf <agraf@suse.de>,
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Paul Mackerras <paulus@samba.org> writes:

> I re-read the relevant part of the PowerPC architecture spec
> yesterday, and it seems pretty clear that the FPSCR doesn't affect the
> behaviour of lfs and stfs, and is not affected by them.  So in fact 4
> out of the 7 instructions in each of those procedures are unnecessary
> (and similarly for the cvt_fd/df used in the alignment fixup code).

I'd prefer to have this deferred to a separate patch.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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