linux-kernel - Re: [PATCH v3 01/14] mm: thp: make __split_huge_pmd

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Date:   Mon, 06 Feb 2017 09:03:46 -0600
From:   "Zi Yan" <zi.yan@...t.com>
To:     "Matthew Wilcox" <willy@...radead.org>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        kirill.shutemov@...ux.intel.com, akpm@...ux-foundation.org,
        minchan@...nel.org, vbabka@...e.cz, mgorman@...hsingularity.net,
        n-horiguchi@...jp.nec.com, khandual@...ux.vnet.ibm.com,
        "Zi Yan" <ziy@...dia.com>
Subject: Re: [PATCH v3 01/14] mm: thp: make __split_huge_pmd_locked visible.

On 6 Feb 2017, at 9:02, Matthew Wilcox wrote:

> On Sun, Feb 05, 2017 at 11:12:39AM -0500, Zi Yan wrote:
>> +++ b/include/linux/huge_mm.h
>> @@ -120,6 +120,8 @@ static inline int split_huge_page(struct page *page)
>>  }
>>  void deferred_split_huge_page(struct page *page);
>>
>> +void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
>> +		unsigned long haddr, bool freeze);
>
> Could you change that from 'haddr' to 'address' so callers who only
> read the header instead of the implementation aren't expecting to align
> it themselves?

Sure. I will do that to avoid confusion.

Thanks for pointing it out.


>
>> +void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
>> +		unsigned long address, bool freeze)
>>  {
>>  	struct mm_struct *mm = vma->vm_mm;
>>  	struct page *page;


--
Best Regards
Yan Zi

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