From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
linux-mm@kvack.org, Hugh Dickins <hughd@google.com>
Subject: [PATCH 18/28] mm: Convert set_compound_page_dtor() and set_compound_order() to folios
Date: Wed, 11 Jan 2023 14:29:04 +0000 [thread overview]
Message-ID: <20230111142915.1001531-19-willy@infradead.org> (raw)
In-Reply-To: <20230111142915.1001531-1-willy@infradead.org>
Replace uses of compound_dtor, compound_order and compound_nr by
their folio equivalents.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
include/linux/mm.h | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0b1cdaf0fa90..57d702fc8677 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -984,8 +984,11 @@ extern compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS];
static inline void set_compound_page_dtor(struct page *page,
enum compound_dtor_id compound_dtor)
{
+ struct folio *folio = (struct folio *)page;
+
VM_BUG_ON_PAGE(compound_dtor >= NR_COMPOUND_DTORS, page);
- page[1].compound_dtor = compound_dtor;
+ VM_BUG_ON_PAGE(!PageHead(page), page);
+ folio->_folio_dtor = compound_dtor;
}
static inline void folio_set_compound_dtor(struct folio *folio,
@@ -999,9 +1002,11 @@ void destroy_large_folio(struct folio *folio);
static inline void set_compound_order(struct page *page, unsigned int order)
{
- page[1].compound_order = order;
+ struct folio *folio = (struct folio *)page;
+
+ folio->_folio_order = order;
#ifdef CONFIG_64BIT
- page[1].compound_nr = 1U << order;
+ folio->_folio_nr_pages = 1U << order;
#endif
}
--
2.35.1
next prev parent reply other threads:[~2023-01-11 14:29 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-11 14:28 [PATCH 00/28] Get rid of tail page fields Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 01/28] mm: Remove folio_pincount_ptr() and head_compound_pincount() Matthew Wilcox (Oracle)
2023-01-12 3:05 ` John Hubbard
2023-01-12 12:40 ` Matthew Wilcox
2023-01-11 14:28 ` [PATCH 02/28] mm: Convert head_subpages_mapcount() into folio_nr_pages_mapped() Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 03/28] doc: Clarify refcount section by referring to folios & pages Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 04/28] mm: Convert total_compound_mapcount() to folio_total_mapcount() Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 05/28] mm: Convert page_remove_rmap() to use a folio internally Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 06/28] mm: Convert page_add_anon_rmap() " Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 07/28] mm: Convert page_add_file_rmap() " Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 08/28] mm: Add folio_add_new_anon_rmap() Matthew Wilcox (Oracle)
2023-01-12 1:06 ` kernel test robot
2023-01-11 14:28 ` [PATCH 09/28] page_alloc: Use folio fields directly Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 10/28] mm: Use a folio in hugepage_add_anon_rmap() and hugepage_add_new_anon_rmap() Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 11/28] mm: Use entire_mapcount in __page_dup_rmap() Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 12/28] mm/debug: Remove call to head_compound_mapcount() Matthew Wilcox (Oracle)
2023-01-11 14:28 ` [PATCH 13/28] hugetlb: Remove uses of folio_mapcount_ptr Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 14/28] mm: Convert page_mapcount() to use folio_entire_mapcount() Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 15/28] mm: Remove head_compound_mapcount() and _ptr functions Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 16/28] mm: Reimplement compound_order() Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 17/28] mm: Reimplement compound_nr() Matthew Wilcox (Oracle)
2023-01-11 14:29 ` Matthew Wilcox (Oracle) [this message]
2023-01-11 14:29 ` [PATCH 19/28] mm: Convert is_transparent_hugepage() to use a folio Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 20/28] mm: Convert destroy_large_folio() to use folio_dtor Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 21/28] hugetlb: Remove uses of compound_dtor and compound_nr Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 22/28] mm: Remove 'First tail page' members from struct page Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 23/28] doc: Correct struct folio kernel-doc Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 24/28] mm: Move page->deferred_list to folio->_deferred_list Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 25/28] mm/huge_memory: Remove page_deferred_list() Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 26/28] mm/huge_memory: Convert get_deferred_split_queue() to take a folio Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 27/28] mm: Convert deferred_split_huge_page() to deferred_split_folio() Matthew Wilcox (Oracle)
2023-01-11 14:29 ` [PATCH 28/28] mm: remove the hugetlb field from struct page Matthew Wilcox (Oracle)
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