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Message-ID: <Y4Rflp1Z48hp/OAb@li-4a3a4a4c-28e5-11b2-a85c-a8d192c6f089.ibm.com>
Date:   Mon, 28 Nov 2022 08:13:26 +0100
From:   Alexander Gordeev <agordeev@...ux.ibm.com>
To:     Anshuman Khandual <anshuman.khandual@....com>
Cc:     linux-mm@...ck.org,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        David Hildenbrand <david@...hat.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>, kvm@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] s390/mm: Use pmd_pgtable_page() helper in
 __gmap_segment_gaddr()

On Mon, Nov 28, 2022 at 12:01:06PM +0530, Anshuman Khandual wrote:
> >> diff --git a/include/linux/mm.h b/include/linux/mm.h
> >> index e9e387caffac..5ead9e997510 100644
> >> --- a/include/linux/mm.h
> >> +++ b/include/linux/mm.h
> >> @@ -2403,7 +2403,7 @@ static inline void pgtable_pte_page_dtor(struct page *page)
> >>  
> >>  #if USE_SPLIT_PMD_PTLOCKS
> >>  
> >> -static struct page *pmd_pgtable_page(pmd_t *pmd)
> >> +static inline struct page *pmd_pgtable_page(pmd_t *pmd)
> >>  {
> >>  	unsigned long mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1);
> >>  	return virt_to_page((void *)((unsigned long) pmd & mask));
> > 
> > This chunk does not appear to belong to this patch.
> 
> Should not this helper be made a 'static inline' before using it else where ?

Probably yes, but it is not kvm s390-specific change.

I guess, you wanted to make it together or as a follow-up to this one?
https://lore.kernel.org/all/20221124131641.1523772-1-anshuman.khandual@arm.com/

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