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From: Michal Hocko <mhocko@kernel.org>
To: Matthew Wilcox <willy@infradead.org>
Cc: linux-mm@kvack.org,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	Christoph Lameter <cl@linux.com>,
	Matthew Wilcox <mawilcox@microsoft.com>
Subject: Re: [PATCH 8/8] mm: Remove reference to PG_buddy
Date: Tue, 19 Dec 2017 11:02:26 +0100	[thread overview]
Message-ID: <20171219100226.GG2787@dhcp22.suse.cz> (raw)
In-Reply-To: <20171216164425.8703-9-willy@infradead.org>

On Sat 16-12-17 08:44:25, Matthew Wilcox wrote:
> From: Matthew Wilcox <mawilcox@microsoft.com>
> 
> PG_buddy doesn't exist any more.  It's called PageBuddy now.
> 
> Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>

Acked-by: Michal Hocko <mhocko@suse.com>

> ---
>  include/linux/mm_types.h | 15 ++++++++-------
>  1 file changed, 8 insertions(+), 7 deletions(-)
> 
> diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
> index a517d210f177..06f16a451a53 100644
> --- a/include/linux/mm_types.h
> +++ b/include/linux/mm_types.h
> @@ -173,13 +173,14 @@ struct page {
>  	};
>  
>  	union {
> -		unsigned long private;		/* Mapping-private opaque data:
> -					 	 * usually used for buffer_heads
> -						 * if PagePrivate set; used for
> -						 * swp_entry_t if PageSwapCache;
> -						 * indicates order in the buddy
> -						 * system if PG_buddy is set.
> -						 */
> +		/*
> +		 * Mapping-private opaque data:
> +		 * Usually used for buffer_heads if PagePrivate
> +		 * Used for swp_entry_t if PageSwapCache
> +		 * Indicates order in the buddy system if PageBuddy
> +		 */
> +		unsigned long private;
> +
>  #if USE_SPLIT_PTE_PTLOCKS
>  #if ALLOC_SPLIT_PTLOCKS
>  		spinlock_t *ptl;
> -- 
> 2.15.1
> 
> --
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-- 
Michal Hocko
SUSE Labs

--
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  reply	other threads:[~2017-12-19 10:02 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-16 16:44 [PATCH 0/8] Restructure struct page Matthew Wilcox
2017-12-16 16:44 ` [PATCH 1/8] mm: Align struct page more aesthetically Matthew Wilcox
2017-12-18 15:22   ` Michal Hocko
2017-12-19 14:58   ` Christopher Lameter
2017-12-16 16:44 ` [PATCH 2/8] mm: De-indent struct page Matthew Wilcox
2017-12-18 15:36   ` Michal Hocko
2017-12-18 16:19     ` Matthew Wilcox
2017-12-18 20:49       ` Michal Hocko
2017-12-18 21:44         ` Matthew Wilcox
2017-12-19 14:59           ` Christopher Lameter
2017-12-16 16:44 ` [PATCH 3/8] mm: Remove misleading alignment claims Matthew Wilcox
2017-12-19 15:01   ` Christopher Lameter
2017-12-16 16:44 ` [PATCH 4/8] mm: Improve comment on page->mapping Matthew Wilcox
2017-12-19  8:02   ` Michal Hocko
2017-12-19 15:48     ` Christopher Lameter
2017-12-16 16:44 ` [PATCH 5/8] mm: Introduce _slub_counter_t Matthew Wilcox
2017-12-19  8:07   ` Michal Hocko
2017-12-19 12:46     ` Matthew Wilcox
2017-12-19 13:01       ` Michal Hocko
2017-12-20 16:19         ` Matthew Wilcox
2017-12-21 17:03           ` Christopher Lameter
2017-12-16 16:44 ` [PATCH 6/8] mm: Store compound_dtor / compound_order as bytes Matthew Wilcox
2017-12-19  8:19   ` Michal Hocko
2017-12-19 12:49     ` Matthew Wilcox
2017-12-16 16:44 ` [PATCH 7/8] mm: Document how to use struct page Matthew Wilcox
2017-12-16 17:47   ` Randy Dunlap
2017-12-17  1:15     ` Matthew Wilcox
2017-12-19  9:59   ` Michal Hocko
2017-12-19 13:07     ` Matthew Wilcox
2017-12-19 13:43       ` Kirill A. Shutemov
2017-12-19 13:48         ` Michal Hocko
2017-12-19 15:53   ` Christopher Lameter
2017-12-19 15:56     ` Kirill A. Shutemov
2017-12-19 16:12     ` Matthew Wilcox
2017-12-16 16:44 ` [PATCH 8/8] mm: Remove reference to PG_buddy Matthew Wilcox
2017-12-19 10:02   ` Michal Hocko [this message]
2017-12-19 15:53     ` Christopher Lameter
2017-12-17 13:06 ` [PATCH 0/8] Restructure struct page Kirill A. Shutemov
2017-12-20 15:52 Matthew Wilcox
2017-12-20 15:52 ` [PATCH 8/8] mm: Remove reference to PG_buddy Matthew Wilcox

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