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
  ...

1 files changed, 11 insertions, 12 deletions

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
index 3a1c782ed791..e92cc9d7257c 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
@@ -408,6 +408,7 @@ shmem_pwrite(struct drm_i915_gem_object *obj,
 	     const struct drm_i915_gem_pwrite *arg)
 {
 	struct address_space *mapping = obj->base.filp->f_mapping;
+	const struct address_space_operations *aops = mapping->a_ops;
 	char __user *user_data = u64_to_user_ptr(arg->data_ptr);
 	u64 remain, offset;
 	unsigned int pg;
@@ -465,9 +466,8 @@ shmem_pwrite(struct drm_i915_gem_object *obj,
 		if (err)
 			return err;
 
-		err = pagecache_write_begin(obj->base.filp, mapping,
-					    offset, len, 0,
-					    &page, &data);
+		err = aops->write_begin(obj->base.filp, mapping, offset, len,
+					&page, &data);
 		if (err < 0)
 			return err;
 
@@ -477,9 +477,8 @@ shmem_pwrite(struct drm_i915_gem_object *obj,
 						      len);
 		kunmap_atomic(vaddr);
 
-		err = pagecache_write_end(obj->base.filp, mapping,
-					  offset, len, len - unwritten,
-					  page, data);
+		err = aops->write_end(obj->base.filp, mapping, offset, len,
+				      len - unwritten, page, data);
 		if (err < 0)
 			return err;
 
@@ -622,6 +621,7 @@ i915_gem_object_create_shmem_from_data(struct drm_i915_private *dev_priv,
 {
 	struct drm_i915_gem_object *obj;
 	struct file *file;
+	const struct address_space_operations *aops;
 	resource_size_t offset;
 	int err;
 
@@ -633,15 +633,15 @@ i915_gem_object_create_shmem_from_data(struct drm_i915_private *dev_priv,
 	GEM_BUG_ON(obj->write_domain != I915_GEM_DOMAIN_CPU);
 
 	file = obj->base.filp;
+	aops = file->f_mapping->a_ops;
 	offset = 0;
 	do {
 		unsigned int len = min_t(typeof(size), size, PAGE_SIZE);
 		struct page *page;
 		void *pgdata, *vaddr;
 
-		err = pagecache_write_begin(file, file->f_mapping,
-					    offset, len, 0,
-					    &page, &pgdata);
+		err = aops->write_begin(file, file->f_mapping, offset, len,
+					&page, &pgdata);
 		if (err < 0)
 			goto fail;
 
@@ -649,9 +649,8 @@ i915_gem_object_create_shmem_from_data(struct drm_i915_private *dev_priv,
 		memcpy(vaddr, data, len);
 		kunmap(page);
 
-		err = pagecache_write_end(file, file->f_mapping,
-					  offset, len, len,
-					  page, pgdata);
+		err = aops->write_end(file, file->f_mapping, offset, len, len,
+				      page, pgdata);
 		if (err < 0)
 			goto fail;