Re: [PATCH 3/3] mm/mmap.c: extract __vma_unlink_list as counter part for __vma_link_list

[Wei Yang]

On Wed, Aug 14, 2019 at 11:19:37AM +0200, Vlastimil Babka wrote:
>On 8/14/19 8:57 AM, Wei Yang wrote:
>> On Tue, Aug 13, 2019 at 10:16:11PM -0700, Christoph Hellwig wrote:
>>>Btw, is there any good reason we don't use a list_head for vma linkage?
>> 
>> Not sure, maybe there is some historical reason?
>
>Seems it was single-linked until 2010 commit 297c5eee3724 ("mm: make the vma
>list be doubly linked") and I guess it was just simpler to add the vm_prev link.
>
>Conversion to list_head might be an interesting project for some "advanced
>beginner" in the kernel :)

Seems it will touch many code ...

-- 
Wei Yang
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