Merge tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache

Pull page cache updates from Matthew Wilcox:

 - Appoint myself page cache maintainer

 - Fix how scsicam uses the page cache

 - Use the memalloc_nofs_save() API to replace AOP_FLAG_NOFS

 - Remove the AOP flags entirely

 - Remove pagecache_write_begin() and pagecache_write_end()

 - Documentation updates

 - Convert several address_space operations to use folios:
     - is_dirty_writeback
     - readpage becomes read_folio
     - releasepage becomes release_folio
     - freepage becomes free_folio

 - Change filler_t to require a struct file pointer be the first
   argument like ->read_folio

* tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache: (107 commits)
  nilfs2: Fix some kernel-doc comments
  Appoint myself page cache maintainer
  fs: Remove aops->freepage
  secretmem: Convert to free_folio
  nfs: Convert to free_folio
  orangefs: Convert to free_folio
  fs: Add free_folio address space operation
  fs: Convert drop_buffers() to use a folio
  fs: Change try_to_free_buffers() to take a folio
  jbd2: Convert release_buffer_page() to use a folio
  jbd2: Convert jbd2_journal_try_to_free_buffers to take a folio
  reiserfs: Convert release_buffer_page() to use a folio
  fs: Remove last vestiges of releasepage
  ubifs: Convert to release_folio
  reiserfs: Convert to release_folio
  orangefs: Convert to release_folio
  ocfs2: Convert to release_folio
  nilfs2: Remove comment about releasepage
  nfs: Convert to release_folio
  jfs: Convert to release_folio
  ...

3 files changed, 7 insertions, 5 deletions

diff --git a/fs/squashfs/file.c b/fs/squashfs/file.c
index 89d492916dea..a8e495d8eb86 100644
--- a/fs/squashfs/file.c
+++ b/fs/squashfs/file.c
@@ -444,8 +444,9 @@ static int squashfs_readpage_sparse(struct page *page, int expected)
 	return 0;
 }
 
-static int squashfs_readpage(struct file *file, struct page *page)
+static int squashfs_read_folio(struct file *file, struct folio *folio)
 {
+	struct page *page = &folio->page;
 	struct inode *inode = page->mapping->host;
 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
 	int index = page->index >> (msblk->block_log - PAGE_SHIFT);
@@ -496,5 +497,5 @@ out:
 
 
 const struct address_space_operations squashfs_aops = {
-	.readpage = squashfs_readpage
+	.read_folio = squashfs_read_folio
 };
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 4f74abbc1a54..6d594ba2ed28 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -148,7 +148,7 @@ static int squashfs_fill_super(struct super_block *sb, struct fs_context *fc)
 
 	/*
 	 * squashfs provides 'backing_dev_info' in order to disable read-ahead. For
-	 * squashfs, I/O is not deferred, it is done immediately in readpage,
+	 * squashfs, I/O is not deferred, it is done immediately in read_folio,
 	 * which means the user would always have to wait their own I/O. So the effect
 	 * of readahead is very weak for squashfs. squashfs_bdi_init will set
 	 * sb->s_bdi->ra_pages and sb->s_bdi->io_pages to 0 and close readahead for
diff --git a/fs/squashfs/symlink.c b/fs/squashfs/symlink.c
index 1430613183e6..2bf977a52c2c 100644
--- a/fs/squashfs/symlink.c
+++ b/fs/squashfs/symlink.c
@@ -30,8 +30,9 @@
 #include "squashfs.h"
 #include "xattr.h"
 
-static int squashfs_symlink_readpage(struct file *file, struct page *page)
+static int squashfs_symlink_read_folio(struct file *file, struct folio *folio)
 {
+	struct page *page = &folio->page;
 	struct inode *inode = page->mapping->host;
 	struct super_block *sb = inode->i_sb;
 	struct squashfs_sb_info *msblk = sb->s_fs_info;
@@ -101,7 +102,7 @@ error_out:
 
 
 const struct address_space_operations squashfs_symlink_aops = {
-	.readpage = squashfs_symlink_readpage
+	.read_folio = squashfs_symlink_read_folio
 };
 
 const struct inode_operations squashfs_symlink_inode_ops = {