Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - More userfaultfs work from Peter Xu

 - Several convert-to-folios series from Sidhartha Kumar and Huang Ying

 - Some filemap cleanups from Vishal Moola

 - David Hildenbrand added the ability to selftest anon memory COW
   handling

 - Some cpuset simplifications from Liu Shixin

 - Addition of vmalloc tracing support by Uladzislau Rezki

 - Some pagecache folioifications and simplifications from Matthew
   Wilcox

 - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use
   it

 - Miguel Ojeda contributed some cleanups for our use of the
   __no_sanitize_thread__ gcc keyword.

   This series should have been in the non-MM tree, my bad

 - Naoya Horiguchi improved the interaction between memory poisoning and
   memory section removal for huge pages

 - DAMON cleanups and tuneups from SeongJae Park

 - Tony Luck fixed the handling of COW faults against poisoned pages

 - Peter Xu utilized the PTE marker code for handling swapin errors

 - Hugh Dickins reworked compound page mapcount handling, simplifying it
   and making it more efficient

 - Removal of the autonuma savedwrite infrastructure from Nadav Amit and
   David Hildenbrand

 - zram support for multiple compression streams from Sergey Senozhatsky

 - David Hildenbrand reworked the GUP code's R/O long-term pinning so
   that drivers no longer need to use the FOLL_FORCE workaround which
   didn't work very well anyway

 - Mel Gorman altered the page allocator so that local IRQs can remnain
   enabled during per-cpu page allocations

 - Vishal Moola removed the try_to_release_page() wrapper

 - Stefan Roesch added some per-BDI sysfs tunables which are used to
   prevent network block devices from dirtying excessive amounts of
   pagecache

 - David Hildenbrand did some cleanup and repair work on KSM COW
   breaking

 - Nhat Pham and Johannes Weiner have implemented writeback in zswap's
   zsmalloc backend

 - Brian Foster has fixed a longstanding corner-case oddity in
   file[map]_write_and_wait_range()

 - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang
   Chen

 - Shiyang Ruan has done some work on fsdax, to make its reflink mode
   work better under xfstests. Better, but still not perfect

 - Christoph Hellwig has removed the .writepage() method from several
   filesystems. They only need .writepages()

 - Yosry Ahmed wrote a series which fixes the memcg reclaim target
   beancounting

 - David Hildenbrand has fixed some of our MM selftests for 32-bit
   machines

 - Many singleton patches, as usual

* tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (313 commits)
  mm/hugetlb: set head flag before setting compound_order in __prep_compound_gigantic_folio
  mm: mmu_gather: allow more than one batch of delayed rmaps
  mm: fix typo in struct pglist_data code comment
  kmsan: fix memcpy tests
  mm: add cond_resched() in swapin_walk_pmd_entry()
  mm: do not show fs mm pc for VM_LOCKONFAULT pages
  selftests/vm: ksm_functional_tests: fixes for 32bit
  selftests/vm: cow: fix compile warning on 32bit
  selftests/vm: madv_populate: fix missing MADV_POPULATE_(READ|WRITE) definitions
  mm/gup_test: fix PIN_LONGTERM_TEST_READ with highmem
  mm,thp,rmap: fix races between updates of subpages_mapcount
  mm: memcg: fix swapcached stat accounting
  mm: add nodes= arg to memory.reclaim
  mm: disable top-tier fallback to reclaim on proactive reclaim
  selftests: cgroup: make sure reclaim target memcg is unprotected
  selftests: cgroup: refactor proactive reclaim code to reclaim_until()
  mm: memcg: fix stale protection of reclaim target memcg
  mm/mmap: properly unaccount memory on mas_preallocate() failure
  omfs: remove ->writepage
  jfs: remove ->writepage
  ...

1 files changed, 28 insertions, 27 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index c73d9c4132f6..e8b60ce72c9a 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -764,11 +764,11 @@ static int fuse_copy_do(struct fuse_copy_state *cs, void **val, unsigned *size)
 	return ncpy;
 }
 
-static int fuse_check_page(struct page *page)
+static int fuse_check_folio(struct folio *folio)
 {
-	if (page_mapcount(page) ||
-	    page->mapping != NULL ||
-	    (page->flags & PAGE_FLAGS_CHECK_AT_PREP &
+	if (folio_mapped(folio) ||
+	    folio->mapping != NULL ||
+	    (folio->flags & PAGE_FLAGS_CHECK_AT_PREP &
 	     ~(1 << PG_locked |
 	       1 << PG_referenced |
 	       1 << PG_uptodate |
@@ -778,7 +778,7 @@ static int fuse_check_page(struct page *page)
 	       1 << PG_reclaim |
 	       1 << PG_waiters |
 	       LRU_GEN_MASK | LRU_REFS_MASK))) {
-		dump_page(page, "fuse: trying to steal weird page");
+		dump_page(&folio->page, "fuse: trying to steal weird page");
 		return 1;
 	}
 	return 0;
@@ -787,11 +787,11 @@ static int fuse_check_page(struct page *page)
 static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 {
 	int err;
-	struct page *oldpage = *pagep;
-	struct page *newpage;
+	struct folio *oldfolio = page_folio(*pagep);
+	struct folio *newfolio;
 	struct pipe_buffer *buf = cs->pipebufs;
 
-	get_page(oldpage);
+	folio_get(oldfolio);
 	err = unlock_request(cs->req);
 	if (err)
 		goto out_put_old;
@@ -814,35 +814,36 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 	if (!pipe_buf_try_steal(cs->pipe, buf))
 		goto out_fallback;
 
-	newpage = buf->page;
+	newfolio = page_folio(buf->page);
 
-	if (!PageUptodate(newpage))
-		SetPageUptodate(newpage);
+	if (!folio_test_uptodate(newfolio))
+		folio_mark_uptodate(newfolio);
 
-	ClearPageMappedToDisk(newpage);
+	folio_clear_mappedtodisk(newfolio);
 
-	if (fuse_check_page(newpage) != 0)
+	if (fuse_check_folio(newfolio) != 0)
 		goto out_fallback_unlock;
 
 	/*
 	 * This is a new and locked page, it shouldn't be mapped or
 	 * have any special flags on it
 	 */
-	if (WARN_ON(page_mapped(oldpage)))
+	if (WARN_ON(folio_mapped(oldfolio)))
 		goto out_fallback_unlock;
-	if (WARN_ON(page_has_private(oldpage)))
+	if (WARN_ON(folio_has_private(oldfolio)))
 		goto out_fallback_unlock;
-	if (WARN_ON(PageDirty(oldpage) || PageWriteback(oldpage)))
+	if (WARN_ON(folio_test_dirty(oldfolio) ||
+				folio_test_writeback(oldfolio)))
 		goto out_fallback_unlock;
-	if (WARN_ON(PageMlocked(oldpage)))
+	if (WARN_ON(folio_test_mlocked(oldfolio)))
 		goto out_fallback_unlock;
 
-	replace_page_cache_page(oldpage, newpage);
+	replace_page_cache_folio(oldfolio, newfolio);
 
-	get_page(newpage);
+	folio_get(newfolio);
 
 	if (!(buf->flags & PIPE_BUF_FLAG_LRU))
-		lru_cache_add(newpage);
+		folio_add_lru(newfolio);
 
 	/*
 	 * Release while we have extra ref on stolen page.  Otherwise
@@ -855,28 +856,28 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 	if (test_bit(FR_ABORTED, &cs->req->flags))
 		err = -ENOENT;
 	else
-		*pagep = newpage;
+		*pagep = &newfolio->page;
 	spin_unlock(&cs->req->waitq.lock);
 
 	if (err) {
-		unlock_page(newpage);
-		put_page(newpage);
+		folio_unlock(newfolio);
+		folio_put(newfolio);
 		goto out_put_old;
 	}
 
-	unlock_page(oldpage);
+	folio_unlock(oldfolio);
 	/* Drop ref for ap->pages[] array */
-	put_page(oldpage);
+	folio_put(oldfolio);
 	cs->len = 0;
 
 	err = 0;
 out_put_old:
 	/* Drop ref obtained in this function */
-	put_page(oldpage);
+	folio_put(oldfolio);
 	return err;
 
 out_fallback_unlock:
-	unlock_page(newpage);
+	folio_unlock(newfolio);
 out_fallback:
 	cs->pg = buf->page;
 	cs->offset = buf->offset;