Re: [PATCH v2 08/32] arm: reuse asm-generic/barrier.h
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- To: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
- Subject: Re: [PATCH v2 08/32] arm: reuse asm-generic/barrier.h
- From: Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx>
- Date: Sat, 2 Jan 2016 11:20:12 +0000
- Cc: linux-kernel@xxxxxxxxxxxxxxx, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, linux-arch@xxxxxxxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, David Miller <davem@xxxxxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-metag@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxx, x86@xxxxxxxxxx, user-mode-linux-devel@xxxxxxxxxxxxxxxxxxxxx, adi-buildroot-devel@xxxxxxxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-xtensa@xxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Ingo Molnar <mingo@xxxxxxxxxx>, Tony Lindgren <tony@xxxxxxxxxxx>, Andrey Konovalov <andreyknvl@xxxxxxxxxx>
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On Thu, Dec 31, 2015 at 09:06:46PM +0200, Michael S. Tsirkin wrote:
> On arm smp_store_mb, read_barrier_depends, smp_read_barrier_depends,
> smp_store_release, smp_load_acquire, smp_mb__before_atomic and
> smp_mb__after_atomic match the asm-generic variants exactly. Drop the
> local definitions and pull in asm-generic/barrier.h instead.
>
> This is in preparation to refactoring this code area.
>
> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
Thanks, the asm-generic versions looks identical to me, so this should
result in no code generation difference.
Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
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