Re: [PATCH] huge_memory.c: document huge page splitting rules more thoroughly

[Zi Yan]

On 25 Mar 2024, at 0:44, John Hubbard wrote:

> 1. Add information about the behavior of huge page splitting, with
>    respect to page/folio refcounts, and gup/pup pins.
>
> 2. Update and clarify the existing documentation, to compensate for the
>    ravages of time and code change.
>
> Cc: David Hildenbrand <david@xxxxxxxxxx>
> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
> Cc: Zi Yan <ziy@xxxxxxxxxx>
>
> Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
> ---
>
> Hi David, Matthew, Zi,
>
> This is a follow up from our short email thread of a week ago [1].
>
> Zi, I've inflicted some minor violence upon your original wording, and
> moved it into a Prerequisites section (item 4).
>
>
> [1] https://lore.kernel.org/all/d9c06bec-805f-4d53-9f91-6b8ad29fcb6b@xxxxxxxxxx/
>
> thanks,
> John Hubbard
> NVIDIA
>
>  mm/huge_memory.c | 42 +++++++++++++++++++++++++++---------------
>  1 file changed, 27 insertions(+), 15 deletions(-)
>
LGTM. Thanks. Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>

--
Best Regards,
Yan, Zi

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