From: David Hildenbrand <david@redhat.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, Vlastimil Babka <vbabka@suse.cz>,
Miaohe Lin <linmiaohe@huawei.com>,
Muchun Song <muchun.song@linux.dev>,
Oscar Salvador <osalvador@suse.de>
Subject: Re: [PATCH 7/9] mm: Free up PG_slab
Date: Fri, 22 Mar 2024 16:09:29 +0100 [thread overview]
Message-ID: <9bd39ce5-a273-4afb-92a8-4259fb7b4b0f@redhat.com> (raw)
In-Reply-To: <20240321142448.1645400-8-willy@infradead.org>
On 21.03.24 15:24, Matthew Wilcox (Oracle) wrote:
> Reclaim the Slab page flag by using a spare bit in PageType. We are
> perennially short of page flags for various purposes, and now that
> the original SLAB allocator has been retired, SLUB does not use the
> mapcount/page_type field. This lets us remove a number of special cases
> for ignoring mapcount on Slab pages.
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> ---
Acked-by: David Hildenbrand <david@redhat.com>
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2024-03-22 15:09 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-21 14:24 [PATCH 0/9] Various significant MM patches Matthew Wilcox (Oracle)
2024-03-21 14:24 ` [PATCH 1/9] mm: Always initialise folio->_deferred_list Matthew Wilcox (Oracle)
2024-03-22 8:23 ` Miaohe Lin
2024-03-22 13:00 ` Matthew Wilcox
2024-04-01 3:14 ` Miaohe Lin
2024-03-22 9:30 ` Vlastimil Babka
2024-03-22 12:49 ` David Hildenbrand
2024-03-21 14:24 ` [PATCH 2/9] mm: Create FOLIO_FLAG_FALSE and FOLIO_TYPE_OPS macros Matthew Wilcox (Oracle)
2024-03-22 9:33 ` Vlastimil Babka
2024-03-21 14:24 ` [PATCH 3/9] mm: Remove folio_prep_large_rmappable() Matthew Wilcox (Oracle)
2024-03-22 9:37 ` Vlastimil Babka
2024-03-22 12:51 ` David Hildenbrand
2024-03-21 14:24 ` [PATCH 4/9] mm: Support page_mapcount() on page_has_type() pages Matthew Wilcox (Oracle)
2024-03-22 9:43 ` Vlastimil Babka
2024-03-22 12:43 ` Matthew Wilcox
2024-03-22 15:04 ` David Hildenbrand
2024-03-21 14:24 ` [PATCH 5/9] mm: Turn folio_test_hugetlb into a PageType Matthew Wilcox (Oracle)
2024-03-22 10:19 ` Vlastimil Babka
2024-03-22 15:06 ` David Hildenbrand
2024-03-23 3:24 ` Matthew Wilcox
2024-03-25 7:57 ` Vlastimil Babka
2024-03-25 18:48 ` Andrew Morton
2024-03-25 20:41 ` Matthew Wilcox
2024-03-25 20:47 ` Vlastimil Babka
2024-03-25 15:14 ` Matthew Wilcox
2024-03-25 15:18 ` Matthew Wilcox
2024-03-25 15:33 ` Matthew Wilcox
2024-03-21 14:24 ` [PATCH 6/9] mm: Remove a call to compound_head() from is_page_hwpoison() Matthew Wilcox (Oracle)
2024-03-22 10:28 ` Vlastimil Babka
2024-03-21 14:24 ` [PATCH 7/9] mm: Free up PG_slab Matthew Wilcox (Oracle)
2024-03-22 9:20 ` Miaohe Lin
2024-03-22 10:41 ` Vlastimil Babka
2024-04-01 3:38 ` Miaohe Lin
2024-03-22 15:09 ` David Hildenbrand [this message]
2024-03-25 15:19 ` Matthew Wilcox
2024-03-31 15:11 ` kernel test robot
2024-03-31 15:11 ` [LTP] " kernel test robot
2024-04-02 5:26 ` Matthew Wilcox
2024-04-02 5:26 ` [LTP] " Matthew Wilcox
2024-03-21 14:24 ` [PATCH 8/9] mm: Improve dumping of mapcount and page_type Matthew Wilcox (Oracle)
2024-03-22 11:05 ` Vlastimil Babka
2024-03-22 15:10 ` David Hildenbrand
2024-03-21 14:24 ` [PATCH 9/9] hugetlb: Remove mention of destructors Matthew Wilcox (Oracle)
2024-03-22 11:08 ` Vlastimil Babka
2024-03-22 15:13 ` David Hildenbrand
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