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SubjectRe: v6.1-rc1, remap_file_pages() and vma linked list?
Date
* J. R. Okajima <hooanon05g@gmail.com> [221025 03:09]:
> Hello,
>
> Linux-v4.10 has a commit
> 48f7df329474 2016-02-18 mm: fix regression in remap_file_pages() emulation
> and it contains a small test program where remap_file_pages() will split
> a region into two VMAs.
>
> Linux-v6.1-rc1 remap_file_pages() doesn't pass that old test.

I broke this in the commit you reference below.

> I tried investigation, but I am not good in this tech field. I could
> only find there may be related to the commit
> 763ecb035029 2022-09-26 mm: remove the vma linked list
> but I am not sure.
> How can we make the old test pass?
> "Don't use remap_file_pages()" or "Ignore such old test" is not an
> option.

Thanks for reporting this issue. I have a fix that will be sent out
shortly.

Regards,
Liam
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