linux-kernel - Re: [PATCH 2/2] mm/sparse: add common helper to mark all memblocks present

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Date:   Wed, 7 Nov 2018 13:19:08 -0700
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-arch@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-sh@...r.kernel.org,
        Stephen Bates <sbates@...thlin.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Christoph Hellwig <hch@....de>, Arnd Bergmann <arnd@...db.de>,
        Michal Hocko <mhocko@...e.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Oscar Salvador <osalvador@...e.de>
Subject: Re: [PATCH 2/2] mm/sparse: add common helper to mark all memblocks
 present



On 2018-11-07 1:12 p.m., Andrew Morton wrote:
>> +void __init memblocks_present(void)
>> +{
>> +	struct memblock_region *reg;
>> +
>> +	for_each_memblock(memory, reg) {
>> +		memory_present(memblock_get_region_node(reg),
>> +			       memblock_region_memory_base_pfn(reg),
>> +			       memblock_region_memory_end_pfn(reg));
>> +	}
>> +}
>> +
> 
> I don't like the name much.  To me, memblocks_present means "are
> memblocks present" whereas this actually means "memblocks are present".
> But whatever.  A little covering comment which describes what this
> does and why it does it would be nice.

The same argument can be made about the existing memory_present()
function and I think it's worth keeping the naming consistent. I'll add
a comment and resend shortly.

> Acked-by: Andrew Morton <akpm@...ux-foundation.org>
> 
> I can grab both patches and shall sneak them into 4.20-rcX, but feel
> free to merge them into some git tree if you'd prefer.  If I see them
> turn up in linux-next I shall drop my copy.

Sounds good, thanks.

Logan