Merge tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache

Pull folio updates from Matthew Wilcox:

 - Fix an accounting bug that made NR_FILE_DIRTY grow without limit
   when running xfstests

 - Convert more of mpage to use folios

 - Remove add_to_page_cache() and add_to_page_cache_locked()

 - Convert find_get_pages_range() to filemap_get_folios()

 - Improvements to the read_cache_page() family of functions

 - Remove a few unnecessary checks of PageError

 - Some straightforward filesystem conversions to use folios

 - Split PageMovable users out from address_space_operations into
   their own movable_operations

 - Convert aops->migratepage to aops->migrate_folio

 - Remove nobh support (Christoph Hellwig)

* tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache: (78 commits)
  fs: remove the NULL get_block case in mpage_writepages
  fs: don't call ->writepage from __mpage_writepage
  fs: remove the nobh helpers
  jfs: stop using the nobh helper
  ext2: remove nobh support
  ntfs3: refactor ntfs_writepages
  mm/folio-compat: Remove migration compatibility functions
  fs: Remove aops->migratepage()
  secretmem: Convert to migrate_folio
  hugetlb: Convert to migrate_folio
  aio: Convert to migrate_folio
  f2fs: Convert to filemap_migrate_folio()
  ubifs: Convert to filemap_migrate_folio()
  btrfs: Convert btrfs_migratepage to migrate_folio
  mm/migrate: Add filemap_migrate_folio()
  mm/migrate: Convert migrate_page() to migrate_folio()
  nfs: Convert to migrate_folio
  btrfs: Convert btree_migratepage to migrate_folio
  mm/migrate: Convert expected_page_refs() to folio_expected_refs()
  mm/migrate: Convert buffer_migrate_page() to buffer_migrate_folio()
  ...

3 files changed, 10 insertions, 16 deletions

diff --git a/block/fops.c b/block/fops.c
index 29066ac5a2fa..92ee820e40fd 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -421,7 +421,7 @@ const struct address_space_operations def_blk_aops = {
 	.write_end	= blkdev_write_end,
 	.writepages	= blkdev_writepages,
 	.direct_IO	= blkdev_direct_IO,
-	.migratepage	= buffer_migrate_page_norefs,
+	.migrate_folio	= buffer_migrate_folio_norefs,
 	.is_dirty_writeback = buffer_check_dirty_writeback,
 };
 
diff --git a/block/partitions/check.h b/block/partitions/check.h
index 4ffa2359b1a3..8d70a880c372 100644
--- a/block/partitions/check.h
+++ b/block/partitions/check.h
@@ -24,13 +24,13 @@ struct parsed_partitions {
 };
 
 typedef struct {
-	struct page *v;
+	struct folio *v;
 } Sector;
 
 void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p);
 static inline void put_dev_sector(Sector p)
 {
-	put_page(p.v);
+	folio_put(p.v);
 }
 
 static inline void
diff --git a/block/partitions/core.c b/block/partitions/core.c
index 1a45b1dd6491..fc1d70384825 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -704,25 +704,19 @@ EXPORT_SYMBOL_GPL(bdev_disk_changed);
 void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p)
 {
 	struct address_space *mapping = state->disk->part0->bd_inode->i_mapping;
-	struct page *page;
+	struct folio *folio;
 
 	if (n >= get_capacity(state->disk)) {
 		state->access_beyond_eod = true;
-		return NULL;
+		goto out;
 	}
 
-	page = read_mapping_page(mapping,
-			(pgoff_t)(n >> (PAGE_SHIFT - 9)), NULL);
-	if (IS_ERR(page))
+	folio = read_mapping_folio(mapping, n >> PAGE_SECTORS_SHIFT, NULL);
+	if (IS_ERR(folio))
 		goto out;
-	if (PageError(page))
-		goto out_put_page;
-
-	p->v = page;
-	return (unsigned char *)page_address(page) +
-			((n & ((1 << (PAGE_SHIFT - 9)) - 1)) << SECTOR_SHIFT);
-out_put_page:
-	put_page(page);
+
+	p->v = folio;
+	return folio_address(folio) + offset_in_folio(folio, n * SECTOR_SIZE);
 out:
 	p->v = NULL;
 	return NULL;