From: SeongJae Park <sjpark@amazon.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: <linux-mm@kvack.org>, Andrew Morton <akpm@linux-foundation.org>,
"Kirill A . Shutemov" <kirill@shutemov.name>,
Huang Ying <ying.huang@intel.com>
Subject: Re: [PATCH 11/11] mm/vmscan: Allow arbitrary sized pages to be paged out
Date: Tue, 15 Sep 2020 09:40:45 +0200 [thread overview]
Message-ID: <20200915074045.17570-1-sjpark@amazon.com> (raw)
In-Reply-To: <20200908195539.25896-12-willy@infradead.org>
On Tue, 8 Sep 2020 20:55:38 +0100 "Matthew Wilcox (Oracle)" <willy@infradead.org> wrote:
> Remove the assumption that a compound page has HPAGE_PMD_NR pins from
> the page cache.
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> Cc: Huang Ying <ying.huang@intel.com>
> ---
> mm/vmscan.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index 99e1796eb833..91b787fff71a 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -722,8 +722,7 @@ static inline int is_page_cache_freeable(struct page *page)
> * that isolated the page, the page cache and optional buffer
> * heads at page->private.
> */
> - int page_cache_pins = PageTransHuge(page) && PageSwapCache(page) ?
> - HPAGE_PMD_NR : 1;
> + int page_cache_pins = thp_nr_pages(page);
Is it ok to remove the PageSwapCache() check?
Thanks,
SeongJae Park
next prev parent reply other threads:[~2020-09-15 7:41 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-08 19:55 [PATCH 00/11] Remove assumptions of THP size Matthew Wilcox (Oracle)
2020-09-08 19:55 ` [PATCH 01/11] mm/filemap: Fix page cache removal for arbitrary sized THPs Matthew Wilcox (Oracle)
2020-09-09 14:27 ` Kirill A. Shutemov
2020-09-15 7:13 ` SeongJae Park
2020-09-08 19:55 ` [PATCH 02/11] mm/memory: Remove page fault assumption of compound page size Matthew Wilcox (Oracle)
2020-09-09 14:29 ` Kirill A. Shutemov
2020-09-09 14:50 ` Matthew Wilcox
2020-09-11 14:51 ` Kirill A. Shutemov
2020-09-08 19:55 ` [PATCH 03/11] mm/page_owner: Change split_page_owner to take a count Matthew Wilcox (Oracle)
2020-09-09 14:42 ` Kirill A. Shutemov
2020-09-15 7:17 ` SeongJae Park
2020-10-13 13:52 ` Matthew Wilcox
2020-09-08 19:55 ` [PATCH 04/11] mm/huge_memory: Fix total_mapcount assumption of page size Matthew Wilcox (Oracle)
2020-09-15 7:21 ` SeongJae Park
2020-09-08 19:55 ` [PATCH 05/11] mm/huge_memory: Fix split " Matthew Wilcox (Oracle)
2020-09-15 7:23 ` SeongJae Park
2020-09-08 19:55 ` [PATCH 06/11] mm/huge_memory: Fix page_trans_huge_mapcount assumption of THP size Matthew Wilcox (Oracle)
2020-09-09 14:45 ` Kirill A. Shutemov
2020-09-15 7:24 ` SeongJae Park
2020-09-08 19:55 ` [PATCH 07/11] mm/huge_memory: Fix can_split_huge_page " Matthew Wilcox (Oracle)
2020-09-09 14:46 ` Kirill A. Shutemov
2020-09-15 7:25 ` SeongJae Park
2020-09-16 1:44 ` Huang, Ying
2020-09-08 19:55 ` [PATCH 08/11] mm/rmap: Fix assumptions " Matthew Wilcox (Oracle)
2020-09-09 14:47 ` Kirill A. Shutemov
2020-09-15 7:27 ` SeongJae Park
2020-09-08 19:55 ` [PATCH 09/11] mm/truncate: Fix truncation for pages of arbitrary size Matthew Wilcox (Oracle)
2020-09-09 14:50 ` Kirill A. Shutemov
2020-09-15 7:36 ` SeongJae Park
2020-09-08 19:55 ` [PATCH 10/11] mm/page-writeback: Support tail pages in wait_for_stable_page Matthew Wilcox (Oracle)
2020-09-09 14:53 ` Kirill A. Shutemov
2020-09-15 7:37 ` SeongJae Park
2020-09-08 19:55 ` [PATCH 11/11] mm/vmscan: Allow arbitrary sized pages to be paged out Matthew Wilcox (Oracle)
2020-09-09 14:55 ` Kirill A. Shutemov
2020-09-15 7:40 ` SeongJae Park [this message]
2020-09-15 12:52 ` Matthew Wilcox
2020-09-16 1:40 ` Huang, Ying
2020-09-16 6:09 ` SeongJae Park
2020-09-30 12:13 ` Matthew Wilcox
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