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Date: Wed, 8 Jun 2022 16:02:35 +0100 From: "Matthew Wilcox (Oracle)" <willy@...radead.org> To: linux-fsdevel@...r.kernel.org Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>, linux-kernel@...r.kernel.org, linux-block@...r.kernel.org, linux-aio@...ck.org, linux-btrfs@...r.kernel.org, linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, cluster-devel@...hat.com, linux-mm@...ck.org, linux-xfs@...r.kernel.org, linux-nfs@...r.kernel.org, linux-ntfs-dev@...ts.sourceforge.net, ocfs2-devel@....oracle.com, linux-mtd@...ts.infradead.org, virtualization@...ts.linux-foundation.org, Christoph Hellwig <hch@....de> Subject: [PATCH v2 05/19] mm/migrate: Convert writeout() to take a folio Use a folio throughout this function. Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org> Reviewed-by: Christoph Hellwig <hch@....de> --- mm/migrate.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 1878de817a01..6b6fec26f4d0 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -761,11 +761,10 @@ int buffer_migrate_page_norefs(struct address_space *mapping, #endif /* - * Writeback a page to clean the dirty state + * Writeback a folio to clean the dirty state */ -static int writeout(struct address_space *mapping, struct page *page) +static int writeout(struct address_space *mapping, struct folio *folio) { - struct folio *folio = page_folio(page); struct writeback_control wbc = { .sync_mode = WB_SYNC_NONE, .nr_to_write = 1, @@ -779,25 +778,25 @@ static int writeout(struct address_space *mapping, struct page *page) /* No write method for the address space */ return -EINVAL; - if (!clear_page_dirty_for_io(page)) + if (!folio_clear_dirty_for_io(folio)) /* Someone else already triggered a write */ return -EAGAIN; /* - * A dirty page may imply that the underlying filesystem has - * the page on some queue. So the page must be clean for - * migration. Writeout may mean we loose the lock and the - * page state is no longer what we checked for earlier. + * A dirty folio may imply that the underlying filesystem has + * the folio on some queue. So the folio must be clean for + * migration. Writeout may mean we lose the lock and the + * folio state is no longer what we checked for earlier. * At this point we know that the migration attempt cannot * be successful. */ remove_migration_ptes(folio, folio, false); - rc = mapping->a_ops->writepage(page, &wbc); + rc = mapping->a_ops->writepage(&folio->page, &wbc); if (rc != AOP_WRITEPAGE_ACTIVATE) /* unlocked. Relock */ - lock_page(page); + folio_lock(folio); return (rc < 0) ? -EIO : -EAGAIN; } @@ -817,7 +816,7 @@ static int fallback_migrate_folio(struct address_space *mapping, default: return -EBUSY; } - return writeout(mapping, &src->page); + return writeout(mapping, src); } /* -- 2.35.1
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