linux-kernel - Re: [PATCH mm-unstable] mm: move folio_set_compound

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Message-Id: <0B650D64-1F64-4695-9365-CF695029C50C@linux.dev>
Date:   Thu, 15 Dec 2022 11:44:14 +0800
From:   Muchun Song <muchun.song@...ux.dev>
To:     Sidhartha Kumar <sidhartha.kumar@...cle.com>
Cc:     linux-kernel@...r.kernel.org,
        Linux Memory Management List <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Muchun Song <songmuchun@...edance.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Matthew Wilcox <willy@...radead.org>,
        John Hubbard <jhubbard@...dia.com>
Subject: Re: [PATCH mm-unstable] mm: move folio_set_compound_order() to
 mm/internal.h



> On Dec 14, 2022, at 05:20, Sidhartha Kumar <sidhartha.kumar@...cle.com> wrote:
> 
> folio_set_compound_order() is moved to an mm-internal location so external
> folio users cannot misuse this function. Change the name of the function
> to folio_set_order() and use WARN_ON_ONCE() rather than BUG_ON. Also,
> handle the case if a non-large folio is passed and add clarifying comments
> to the function.
> 
> Link: https://lore.kernel.org/lkml/20221207223731.32784-1-sidhartha.kumar@oracle.com/T/
> Fixes: 9fd330582b2f ("mm: add folio dtor and order setter functions")
> 
> Signed-off-by: Sidhartha Kumar <sidhartha.kumar@...cle.com>
> Suggested-by: Mike Kravetz <mike.kravetz@...cle.com>
> Suggested-by: Muchun Song <songmuchun@...edance.com>
> Suggested-by: Matthew Wilcox <willy@...radead.org>
> Suggested-by: John Hubbard <jhubbard@...dia.com>

Reviewed-by: Muchun Song <songmuchun@...edance.com>

Thanks.