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Date:   Wed, 5 Aug 2020 11:57:15 +0800
From:   Baoquan He <bhe@redhat.com>
To:     Mike Rapoport <rppt@kernel.org>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Andy Lutomirski <luto@kernel.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Borislav Petkov <bp@alien8.de>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Christoph Hellwig <hch@lst.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Emil Renner Berthing <kernel@esmil.dk>,
        Ingo Molnar <mingo@redhat.com>,
        Hari Bathini <hbathini@linux.ibm.com>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Max Filippov <jcmvbkbc@gmail.com>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Michal Simek <monstr@monstr.eu>,
        Mike Rapoport <rppt@linux.ibm.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
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Subject: Re: [PATCH v2 11/17] arch, mm: replace for_each_memblock() with
 for_each_mem_pfn_range()
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References: <20200802163601.8189-1-rppt@kernel.org>
 <20200802163601.8189-12-rppt@kernel.org>
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On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
> 
> There are several occurrences of the following pattern:
> 
> 	for_each_memblock(memory, reg) {
> 		start_pfn = memblock_region_memory_base_pfn(reg);
> 		end_pfn = memblock_region_memory_end_pfn(reg);
> 
> 		/* do something with start_pfn and end_pfn */
> 	}
> 
> Rather than iterate over all memblock.memory regions and each time query
> for their start and end PFNs, use for_each_mem_pfn_range() iterator to get
> simpler and clearer code.
> 
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> ---
>  arch/arm/mm/init.c           | 11 ++++-------
>  arch/arm64/mm/init.c         | 11 ++++-------
>  arch/powerpc/kernel/fadump.c | 11 ++++++-----
>  arch/powerpc/mm/mem.c        | 15 ++++++++-------
>  arch/powerpc/mm/numa.c       |  7 ++-----
>  arch/s390/mm/page-states.c   |  6 ++----
>  arch/sh/mm/init.c            |  9 +++------
>  mm/memblock.c                |  6 ++----
>  mm/sparse.c                  | 10 ++++------
>  9 files changed, 35 insertions(+), 51 deletions(-)
> 

Reviewed-by: Baoquan He <bhe@redhat.com>