From: Johannes Weiner <hannes@cmpxchg.org>
To: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -mm v2] mm: add page_check_address_transhuge helper
Date: Tue, 24 Nov 2015 13:15:21 -0500 [thread overview]
Message-ID: <20151124181521.GA19885@cmpxchg.org> (raw)
In-Reply-To: <20151124093617.GE29014@esperanza>
On Tue, Nov 24, 2015 at 12:36:17PM +0300, Vladimir Davydov wrote:
> diff --git a/include/linux/rmap.h b/include/linux/rmap.h
> index b9eedc63e9e6..77d1ba57d495 100644
> --- a/include/linux/rmap.h
> +++ b/include/linux/rmap.h
> @@ -219,9 +219,20 @@ static inline pte_t *page_check_address(struct page *page, struct mm_struct *mm,
> * Used by idle page tracking to check if a page was referenced via page
> * tables.
> */
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
> bool page_check_address_transhuge(struct page *page, struct mm_struct *mm,
> unsigned long address, pmd_t **pmdp,
> pte_t **ptep, spinlock_t **ptlp);
> +#else
> +static inline bool page_check_address_transhuge(struct page *page,
> + struct mm_struct *mm, unsigned long address,
> + pmd_t **pmdp, pte_t **ptep, spinlock_t **ptlp)
> +{
> + *ptep = page_check_address(page, mm, address, ptlp, 0);
> + *pmdp = NULL;
> + return !!*ptep;
> +}
> +#endif
Tested-by: Johannes Weiner <hannes@cmpxchg.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -mm v2] mm: add page_check_address_transhuge helper
Date: Tue, 24 Nov 2015 13:15:21 -0500 [thread overview]
Message-ID: <20151124181521.GA19885@cmpxchg.org> (raw)
In-Reply-To: <20151124093617.GE29014@esperanza>
On Tue, Nov 24, 2015 at 12:36:17PM +0300, Vladimir Davydov wrote:
> diff --git a/include/linux/rmap.h b/include/linux/rmap.h
> index b9eedc63e9e6..77d1ba57d495 100644
> --- a/include/linux/rmap.h
> +++ b/include/linux/rmap.h
> @@ -219,9 +219,20 @@ static inline pte_t *page_check_address(struct page *page, struct mm_struct *mm,
> * Used by idle page tracking to check if a page was referenced via page
> * tables.
> */
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
> bool page_check_address_transhuge(struct page *page, struct mm_struct *mm,
> unsigned long address, pmd_t **pmdp,
> pte_t **ptep, spinlock_t **ptlp);
> +#else
> +static inline bool page_check_address_transhuge(struct page *page,
> + struct mm_struct *mm, unsigned long address,
> + pmd_t **pmdp, pte_t **ptep, spinlock_t **ptlp)
> +{
> + *ptep = page_check_address(page, mm, address, ptlp, 0);
> + *pmdp = NULL;
> + return !!*ptep;
> +}
> +#endif
Tested-by: Johannes Weiner <hannes@cmpxchg.org>
next prev parent reply other threads:[~2015-11-24 18:15 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-20 9:31 [PATCH -mm v2] mm: add page_check_address_transhuge helper Vladimir Davydov
2015-11-20 9:31 ` Vladimir Davydov
2015-11-24 4:29 ` Sergey Senozhatsky
2015-11-24 4:29 ` Sergey Senozhatsky
2015-11-24 9:09 ` Kirill A. Shutemov
2015-11-24 9:09 ` Kirill A. Shutemov
2015-11-24 9:23 ` Sergey Senozhatsky
2015-11-24 9:23 ` Sergey Senozhatsky
2015-11-24 9:36 ` Vladimir Davydov
2015-11-24 9:36 ` Vladimir Davydov
2015-11-24 9:46 ` Vladimir Davydov
2015-11-24 9:46 ` Vladimir Davydov
2015-11-24 10:09 ` Sergey Senozhatsky
2015-11-24 10:09 ` Sergey Senozhatsky
2015-11-24 9:57 ` Kirill A. Shutemov
2015-11-24 9:57 ` Kirill A. Shutemov
2015-11-24 18:15 ` Johannes Weiner [this message]
2015-11-24 18:15 ` Johannes Weiner
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