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Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- To: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
- From: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>
- Date: Wed, 13 Jan 2016 12:58:22 -0800
- Cc: linux-mips@xxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, Will Deacon <will.deacon@xxxxxxx>, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, sparclinux@xxxxxxxxxxxxxxx, Ingo Molnar <mingo@xxxxxxxxxx>, linux-arch@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx>, user-mode-linux-devel@xxxxxxxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, x86@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Ingo Molnar <mingo@xxxxxxx>, Paul McKenney <paulmck@xxxxxxxxxxxxxxxxxx>, linux-xtensa@xxxxxxxxxxxxxxxx, james.hogan@xxxxxxxxxx, Arnd Bergmann <arnd@xxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, adi-buildroot-devel@xxxxxxxxxxxxxxxxxxxxx, ddaney.cavm@xxxxxxxxx, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, linux-metag@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Ralf Baechle <ralf@xxxxxxxxxxxxxx>, Joe Perches <joe@xxxxxxxxxxx>, linuxppc-dev@xxxxxxxxxxxxxxxx, David Miller <davem@xxxxxxxxxxxxx>
- Delivery-date: Wed, 13 Jan 2016 20:58:40 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On 01/13/2016 12:48 PM, Peter Zijlstra wrote:
On Wed, Jan 13, 2016 at 11:02:35AM -0800, Leonid Yegoshin wrote:
I ask HW team about it but I have a question - has it any relationship with
replacing MIPS SYNC with lightweight SYNCs (SYNC_WMB etc)?
Of course. If you cannot explain the semantics of the primitives you
introduce, how can we judge the patch.
You missed a point - it is a question about replacement of SYNC with
lightweight primitives. It is NOT a question about multithread system
behavior without any SYNC. The answer on a latest Will's question lies
in different area.
- Leonid.
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