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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: linux-fsdevel@vger.kernel.org
Cc: linux-aio@kvack.org, linux-nfs@vger.kernel.org,
	cluster-devel@redhat.com, linux-ntfs-dev@lists.sourceforge.net,
	Christoph Hellwig <hch@lst.de>,
	linux-kernel@vger.kernel.org,
	"Matthew Wilcox \(Oracle\)" <willy@infradead.org>,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-block@vger.kernel.org, linux-mm@kvack.org,
	linux-mtd@lists.infradead.org, ocfs2-devel@oss.oracle.com,
	linux-ext4@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	linux-xfs@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: [f2fs-dev] [PATCH v2 19/19] mm/folio-compat: Remove migration compatibility functions
Date: Wed,  8 Jun 2022 16:02:49 +0100	[thread overview]
Message-ID: <20220608150249.3033815-20-willy@infradead.org> (raw)
In-Reply-To: <20220608150249.3033815-1-willy@infradead.org>

migrate_page_move_mapping(), migrate_page_copy() and migrate_page_states()
are all now unused after converting all the filesystems from
aops->migratepage() to aops->migrate_folio().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/migrate.h | 11 -----------
 mm/folio-compat.c       | 22 ----------------------
 mm/ksm.c                |  2 +-
 3 files changed, 1 insertion(+), 34 deletions(-)

diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 59d64a1e6b4b..3e18c7048506 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -40,12 +40,8 @@ extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
 extern struct page *alloc_migration_target(struct page *page, unsigned long private);
 extern int isolate_movable_page(struct page *page, isolate_mode_t mode);
 
-extern void migrate_page_states(struct page *newpage, struct page *page);
-extern void migrate_page_copy(struct page *newpage, struct page *page);
 int migrate_huge_page_move_mapping(struct address_space *mapping,
 		struct folio *dst, struct folio *src);
-extern int migrate_page_move_mapping(struct address_space *mapping,
-		struct page *newpage, struct page *page, int extra_count);
 void migration_entry_wait_on_locked(swp_entry_t entry, pte_t *ptep,
 				spinlock_t *ptl);
 void folio_migrate_flags(struct folio *newfolio, struct folio *folio);
@@ -66,13 +62,6 @@ static inline struct page *alloc_migration_target(struct page *page,
 static inline int isolate_movable_page(struct page *page, isolate_mode_t mode)
 	{ return -EBUSY; }
 
-static inline void migrate_page_states(struct page *newpage, struct page *page)
-{
-}
-
-static inline void migrate_page_copy(struct page *newpage,
-				     struct page *page) {}
-
 static inline int migrate_huge_page_move_mapping(struct address_space *mapping,
 				  struct folio *dst, struct folio *src)
 {
diff --git a/mm/folio-compat.c b/mm/folio-compat.c
index 20bc15b57d93..458618c7302c 100644
--- a/mm/folio-compat.c
+++ b/mm/folio-compat.c
@@ -51,28 +51,6 @@ void mark_page_accessed(struct page *page)
 }
 EXPORT_SYMBOL(mark_page_accessed);
 
-#ifdef CONFIG_MIGRATION
-int migrate_page_move_mapping(struct address_space *mapping,
-		struct page *newpage, struct page *page, int extra_count)
-{
-	return folio_migrate_mapping(mapping, page_folio(newpage),
-					page_folio(page), extra_count);
-}
-EXPORT_SYMBOL(migrate_page_move_mapping);
-
-void migrate_page_states(struct page *newpage, struct page *page)
-{
-	folio_migrate_flags(page_folio(newpage), page_folio(page));
-}
-EXPORT_SYMBOL(migrate_page_states);
-
-void migrate_page_copy(struct page *newpage, struct page *page)
-{
-	folio_migrate_copy(page_folio(newpage), page_folio(page));
-}
-EXPORT_SYMBOL(migrate_page_copy);
-#endif
-
 bool set_page_writeback(struct page *page)
 {
 	return folio_start_writeback(page_folio(page));
diff --git a/mm/ksm.c b/mm/ksm.c
index 54f78c9eecae..e8f8c1a2bb39 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -712,7 +712,7 @@ static struct page *get_ksm_page(struct stable_node *stable_node,
 	 * however, it might mean that the page is under page_ref_freeze().
 	 * The __remove_mapping() case is easy, again the node is now stale;
 	 * the same is in reuse_ksm_page() case; but if page is swapcache
-	 * in migrate_page_move_mapping(), it might still be our page,
+	 * in folio_migrate_mapping(), it might still be our page,
 	 * in which case it's essential to keep the node.
 	 */
 	while (!get_page_unless_zero(page)) {
-- 
2.35.1



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      parent reply	other threads:[~2022-06-08 15:03 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-08 15:02 [f2fs-dev] [PATCH v2 00/19] Convert aops->migratepage to aops->migrate_folio Matthew Wilcox (Oracle)
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 01/19] secretmem: Remove isolate_page Matthew Wilcox (Oracle)
2022-06-09 12:46   ` David Hildenbrand
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 02/19] mm: Convert all PageMovable users to movable_operations Matthew Wilcox (Oracle)
2022-06-09 10:23   ` David Hildenbrand
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 03/19] fs: Add aops->migrate_folio Matthew Wilcox (Oracle)
2022-06-09 12:50   ` David Hildenbrand
2022-06-09 14:35     ` Matthew Wilcox
2022-06-10 10:17       ` David Hildenbrand
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 04/19] mm/migrate: Convert fallback_migrate_page() to fallback_migrate_folio() Matthew Wilcox (Oracle)
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 05/19] mm/migrate: Convert writeout() to take a folio Matthew Wilcox (Oracle)
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 06/19] mm/migrate: Convert buffer_migrate_page() to buffer_migrate_folio() Matthew Wilcox (Oracle)
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 07/19] mm/migrate: Convert expected_page_refs() to folio_expected_refs() Matthew Wilcox (Oracle)
2022-07-08  2:50   ` Hugh Dickins via Linux-f2fs-devel
2022-07-08  3:29     ` Matthew Wilcox
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 08/19] btrfs: Convert btree_migratepage to migrate_folio Matthew Wilcox (Oracle)
2022-06-09 16:25   ` David Sterba
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 09/19] nfs: Convert " Matthew Wilcox (Oracle)
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 10/19] mm/migrate: Convert migrate_page() to migrate_folio() Matthew Wilcox (Oracle)
2022-06-09 16:26   ` David Sterba
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 11/19] mm/migrate: Add filemap_migrate_folio() Matthew Wilcox (Oracle)
2022-06-08 15:22   ` Darrick J. Wong
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 12/19] btrfs: Convert btrfs_migratepage to migrate_folio Matthew Wilcox (Oracle)
2022-06-09 16:33   ` David Sterba
2022-06-09 17:40     ` Matthew Wilcox
2022-06-09 23:05       ` David Sterba
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 13/19] ubifs: Convert to filemap_migrate_folio() Matthew Wilcox (Oracle)
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 14/19] f2fs: " Matthew Wilcox (Oracle)
2022-06-15  8:11   ` Chao Yu
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 15/19] aio: Convert to migrate_folio Matthew Wilcox (Oracle)
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 16/19] hugetlb: " Matthew Wilcox (Oracle)
2022-06-09  3:53   ` Muchun Song
2022-06-09 20:51   ` Mike Kravetz
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 17/19] secretmem: " Matthew Wilcox (Oracle)
2022-06-08 15:02 ` [f2fs-dev] [PATCH v2 18/19] fs: Remove aops->migratepage() Matthew Wilcox (Oracle)
2022-06-08 15:02 ` Matthew Wilcox (Oracle) [this message]

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