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To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
From: Michael Ellerman <patch-notifications@ellerman.id.au>
Cc: Anton Blanchard <anton@samba.org>, Nicholas Piggin <npiggin@gmail.com>
Subject: Re: powerpc: Fix smp_wmb barrier definition use use lwsync
 consistently
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Date: Sun,  1 Apr 2018 01:04:00 +1100 (AEDT)
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On Thu, 2018-03-22 at 10:41:46 UTC, Nicholas Piggin wrote:
> asm/barrier.h is not always included after asm/synch.h, which meant
> it was missing __SUBARCH_HAS_LWSYNC, so in some files smp_wmb() would
> be eieio when it should be lwsync. kernel/time/hrtimer.c is one case.
> 
> __SUBARCH_HAS_LWSYNC is only used in one place, so just fold it in
> to where it's used. Previously with my small simulator config, 377
> instances of eieio in the tree. After this patch there are 55.
> 
> Cc: Anton Blanchard <anton@samba.org>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/0bfdf598900fd62869659f360d3387

cheers