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Date: Tue, 08 Nov 2016 10:51:56 +1100 From: Michael Ellerman <mpe@...erman.id.au> To: Laurent Dufour <ldufour@...ux.vnet.ibm.com>, Christopher Covington <cov@...eaurora.org>, criu@...nvz.org, Will Deacon <will.deacon@....com>, linux-mm@...ck.org Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>, Paul Mackerras <paulus@...ba.org>, linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org Subject: Re: [RFC v2 6/7] mm/powerpc: Use generic VDSO remap and unmap functions Laurent Dufour <ldufour@...ux.vnet.ibm.com> writes: > On 04/11/2016 05:59, Michael Ellerman wrote: >> Christopher Covington <cov@...eaurora.org> writes: >> >>> The PowerPC VDSO remap and unmap code was copied to a generic location, >>> only modifying the variable name expected in mm->context (vdso instead of >>> vdso_base) to match most other architectures. Having adopted this generic >>> naming, drop the code in arch/powerpc and use the generic version. >>> >>> Signed-off-by: Christopher Covington <cov@...eaurora.org> >>> --- >>> arch/powerpc/Kconfig | 1 + >>> arch/powerpc/include/asm/Kbuild | 1 + >>> arch/powerpc/include/asm/mm-arch-hooks.h | 28 ------------------------- >>> arch/powerpc/include/asm/mmu_context.h | 35 +------------------------------- >>> 4 files changed, 3 insertions(+), 62 deletions(-) >>> delete mode 100644 arch/powerpc/include/asm/mm-arch-hooks.h >> >> This looks OK. >> >> Have you tested it on powerpc? I could but I don't know how to actually >> trigger these paths, I assume I need a CRIU setup? > > FWIW, tested on ppc64le using a sample test process moving its VDSO and > then catching a signal on 4.9-rc4 and using CRIU on top of 4.8 with > sightly changes to due minor upstream changes. > > Reviewed-by: Laurent Dufour <ldufour@...ux.vnet.ibm.com> > Tested-by: Laurent Dufour <ldufour@...ux.vnet.ibm.com> Thanks, in that case: Acked-by: Michael Ellerman <mpe@...erman.id.au> cheers
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