[GIT PULL] Folio fixes for 5.19

[Matthew Wilcox <willy@infradead.org>]

The following changes since commit 3d9f55c57bc3659f986acc421eac431ff6edcc83:

  Merge tag 'fs_for_v5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs (2022-06-09 12:26:05 -0700)

are available in the Git repository at:

  git://git.infradead.org/users/willy/pagecache.git tags/folio-5.19a

for you to fetch changes up to 334f6f53abcf57782bd2fe81da1cbd893e4ef05c:

  mm: Add kernel-doc for folio->mlock_count (2022-06-09 16:24:25 -0400)

----------------------------------------------------------------
Four folio-related fixes for 5.19:

 - Don't release a folio while it's still locked

 - Fix a use-after-free after dropping the mmap_lock

 - Fix a memory leak when splitting a page

 - Fix a kernel-doc warning for struct folio

----------------------------------------------------------------
Matthew Wilcox (Oracle) (4):
      filemap: Don't release a locked folio
      filemap: Cache the value of vm_flags
      mm/huge_memory: Fix xarray node memory leak
      mm: Add kernel-doc for folio->mlock_count

 include/linux/mm_types.h | 5 +++++
 include/linux/xarray.h   | 1 +
 lib/xarray.c             | 5 +++--
 mm/filemap.c             | 9 +++++----
 mm/huge_memory.c         | 3 +--
 mm/readahead.c           | 2 ++
 6 files changed, 17 insertions(+), 8 deletions(-)