linux-kernel - Re: [PATCH v3 1/6] mm/hugetlb: add folio support to hugetlb specific flag macros

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Date:   Mon, 19 Sep 2022 15:09:32 -0700
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Sidhartha Kumar <sidhartha.kumar@...cle.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        akpm@...ux-foundation.org, songmuchun@...edance.com,
        willy@...radead.org, vbabka@...e.cz, william.kucharski@...cle.com,
        dhowells@...hat.com, peterx@...hat.com, arnd@...db.de,
        ccross@...gle.com, hughd@...gle.com, ebiederm@...ssion.com
Subject: Re: [PATCH v3 1/6] mm/hugetlb: add folio support to hugetlb specific
 flag macros

On 09/08/22 12:37, Sidhartha Kumar wrote:
> Allows the macros which test, set, and clear hugetlb specific page
> flags to take a hugetlb folio as an input. The marcros are generated as
> folio_{test, set, clear}_hugetlb_{restore_reserve, migratable,
> temporary, freed, vmemmap_optimized, raw_hwp_unreliable}.
> 
> Signed-off-by: Sidhartha Kumar <sidhartha.kumar@...cle.com>
> ---
>  include/linux/hugetlb.h | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)

I wish there was more usage of these new macros.  The only usage is a
folio_test_hugetlb_restore_reserve() call in patch 5.  Usage will expand
as more code is converted.

Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>
-- 
Mike Kravetz