Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull mm updates from Andrew Morton:

 - Yosry Ahmed brought back some cgroup v1 stats in OOM logs

 - Yosry has also eliminated cgroup's atomic rstat flushing

 - Nhat Pham adds the new cachestat() syscall. It provides userspace
   with the ability to query pagecache status - a similar concept to
   mincore() but more powerful and with improved usability

 - Mel Gorman provides more optimizations for compaction, reducing the
   prevalence of page rescanning

 - Lorenzo Stoakes has done some maintanance work on the
   get_user_pages() interface

 - Liam Howlett continues with cleanups and maintenance work to the
   maple tree code. Peng Zhang also does some work on maple tree

 - Johannes Weiner has done some cleanup work on the compaction code

 - David Hildenbrand has contributed additional selftests for
   get_user_pages()

 - Thomas Gleixner has contributed some maintenance and optimization
   work for the vmalloc code

 - Baolin Wang has provided some compaction cleanups,

 - SeongJae Park continues maintenance work on the DAMON code

 - Huang Ying has done some maintenance on the swap code's usage of
   device refcounting

 - Christoph Hellwig has some cleanups for the filemap/directio code

 - Ryan Roberts provides two patch series which yield some
   rationalization of the kernel's access to pte entries - use the
   provided APIs rather than open-coding accesses

 - Lorenzo Stoakes has some fixes to the interaction between pagecache
   and directio access to file mappings

 - John Hubbard has a series of fixes to the MM selftesting code

 - ZhangPeng continues the folio conversion campaign

 - Hugh Dickins has been working on the pagetable handling code, mainly
   with a view to reducing the load on the mmap_lock

 - Catalin Marinas has reduced the arm64 kmalloc() minimum alignment
   from 128 to 8

 - Domenico Cerasuolo has improved the zswap reclaim mechanism by
   reorganizing the LRU management

 - Matthew Wilcox provides some fixups to make gfs2 work better with the
   buffer_head code

 - Vishal Moola also has done some folio conversion work

 - Matthew Wilcox has removed the remnants of the pagevec code - their
   functionality is migrated over to struct folio_batch

* tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (380 commits)
  mm/hugetlb: remove hugetlb_set_page_subpool()
  mm: nommu: correct the range of mmap_sem_read_lock in task_mem()
  hugetlb: revert use of page_cache_next_miss()
  Revert "page cache: fix page_cache_next/prev_miss off by one"
  mm/vmscan: fix root proactive reclaim unthrottling unbalanced node
  mm: memcg: rename and document global_reclaim()
  mm: kill [add|del]_page_to_lru_list()
  mm: compaction: convert to use a folio in isolate_migratepages_block()
  mm: zswap: fix double invalidate with exclusive loads
  mm: remove unnecessary pagevec includes
  mm: remove references to pagevec
  mm: rename invalidate_mapping_pagevec to mapping_try_invalidate
  mm: remove struct pagevec
  net: convert sunrpc from pagevec to folio_batch
  i915: convert i915_gpu_error to use a folio_batch
  pagevec: rename fbatch_count()
  mm: remove check_move_unevictable_pages()
  drm: convert drm_gem_put_pages() to use a folio_batch
  i915: convert shmem_sg_free_table() to use a folio_batch
  scatterlist: add sg_set_folio()
  ...

1 files changed, 39 insertions, 29 deletions

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 1a5a2cd0d4ec..78dcae201cc6 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -496,13 +496,13 @@ int drm_gem_create_mmap_offset(struct drm_gem_object *obj)
 EXPORT_SYMBOL(drm_gem_create_mmap_offset);
 
 /*
- * Move pages to appropriate lru and release the pagevec, decrementing the
- * ref count of those pages.
+ * Move folios to appropriate lru and release the folios, decrementing the
+ * ref count of those folios.
  */
-static void drm_gem_check_release_pagevec(struct pagevec *pvec)
+static void drm_gem_check_release_batch(struct folio_batch *fbatch)
 {
-	check_move_unevictable_pages(pvec);
-	__pagevec_release(pvec);
+	check_move_unevictable_folios(fbatch);
+	__folio_batch_release(fbatch);
 	cond_resched();
 }
 
@@ -534,10 +534,10 @@ static void drm_gem_check_release_pagevec(struct pagevec *pvec)
 struct page **drm_gem_get_pages(struct drm_gem_object *obj)
 {
 	struct address_space *mapping;
-	struct page *p, **pages;
-	struct pagevec pvec;
-	int i, npages;
-
+	struct page **pages;
+	struct folio *folio;
+	struct folio_batch fbatch;
+	int i, j, npages;
 
 	if (WARN_ON(!obj->filp))
 		return ERR_PTR(-EINVAL);
@@ -559,11 +559,14 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj)
 
 	mapping_set_unevictable(mapping);
 
-	for (i = 0; i < npages; i++) {
-		p = shmem_read_mapping_page(mapping, i);
-		if (IS_ERR(p))
+	i = 0;
+	while (i < npages) {
+		folio = shmem_read_folio_gfp(mapping, i,
+				mapping_gfp_mask(mapping));
+		if (IS_ERR(folio))
 			goto fail;
-		pages[i] = p;
+		for (j = 0; j < folio_nr_pages(folio); j++, i++)
+			pages[i] = folio_file_page(folio, i);
 
 		/* Make sure shmem keeps __GFP_DMA32 allocated pages in the
 		 * correct region during swapin. Note that this requires
@@ -571,23 +574,26 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj)
 		 * so shmem can relocate pages during swapin if required.
 		 */
 		BUG_ON(mapping_gfp_constraint(mapping, __GFP_DMA32) &&
-				(page_to_pfn(p) >= 0x00100000UL));
+				(folio_pfn(folio) >= 0x00100000UL));
 	}
 
 	return pages;
 
 fail:
 	mapping_clear_unevictable(mapping);
-	pagevec_init(&pvec);
-	while (i--) {
-		if (!pagevec_add(&pvec, pages[i]))
-			drm_gem_check_release_pagevec(&pvec);
+	folio_batch_init(&fbatch);
+	j = 0;
+	while (j < i) {
+		struct folio *f = page_folio(pages[j]);
+		if (!folio_batch_add(&fbatch, f))
+			drm_gem_check_release_batch(&fbatch);
+		j += folio_nr_pages(f);
 	}
-	if (pagevec_count(&pvec))
-		drm_gem_check_release_pagevec(&pvec);
+	if (fbatch.nr)
+		drm_gem_check_release_batch(&fbatch);
 
 	kvfree(pages);
-	return ERR_CAST(p);
+	return ERR_CAST(folio);
 }
 EXPORT_SYMBOL(drm_gem_get_pages);
 
@@ -603,7 +609,7 @@ void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
 {
 	int i, npages;
 	struct address_space *mapping;
-	struct pagevec pvec;
+	struct folio_batch fbatch;
 
 	mapping = file_inode(obj->filp)->i_mapping;
 	mapping_clear_unevictable(mapping);
@@ -616,23 +622,27 @@ void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
 
 	npages = obj->size >> PAGE_SHIFT;
 
-	pagevec_init(&pvec);
+	folio_batch_init(&fbatch);
 	for (i = 0; i < npages; i++) {
+		struct folio *folio;
+
 		if (!pages[i])
 			continue;
+		folio = page_folio(pages[i]);
 
 		if (dirty)
-			set_page_dirty(pages[i]);
+			folio_mark_dirty(folio);
 
 		if (accessed)
-			mark_page_accessed(pages[i]);
+			folio_mark_accessed(folio);
 
 		/* Undo the reference we took when populating the table */
-		if (!pagevec_add(&pvec, pages[i]))
-			drm_gem_check_release_pagevec(&pvec);
+		if (!folio_batch_add(&fbatch, folio))
+			drm_gem_check_release_batch(&fbatch);
+		i += folio_nr_pages(folio) - 1;
 	}
-	if (pagevec_count(&pvec))
-		drm_gem_check_release_pagevec(&pvec);
+	if (folio_batch_count(&fbatch))
+		drm_gem_check_release_batch(&fbatch);
 
 	kvfree(pages);
 }