[PATCH v15 17/17] iomap: Convert iomap_migrate_page to use folios
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: 2021-07-19 22:23:47
Also in:
linux-fsdevel, linux-mm
Subsystem:
filesystems (vfs and infrastructure), filesystems [iomap], the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
The arguments are still pages for now, but we can use folios internally and cut out a lot of calls to compound_head(). Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- fs/iomap/buffered-io.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 60d3b7af61d1..cf56b19fb101 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c@@ -492,19 +492,21 @@ int iomap_migrate_page(struct address_space *mapping, struct page *newpage, struct page *page, enum migrate_mode mode) { + struct folio *folio = page_folio(page); + struct folio *newfolio = page_folio(newpage); int ret; - ret = migrate_page_move_mapping(mapping, newpage, page, 0); + ret = folio_migrate_mapping(mapping, newfolio, folio, 0); if (ret != MIGRATEPAGE_SUCCESS) return ret; - if (page_has_private(page)) - attach_page_private(newpage, detach_page_private(page)); + if (folio_test_private(folio)) + folio_attach_private(newfolio, folio_detach_private(folio)); if (mode != MIGRATE_SYNC_NO_COPY) - migrate_page_copy(newpage, page); + folio_migrate_copy(newfolio, folio); else - migrate_page_states(newpage, page); + folio_migrate_flags(newfolio, folio); return MIGRATEPAGE_SUCCESS; } EXPORT_SYMBOL_GPL(iomap_migrate_page);
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2.30.2