Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull misc vfs updates from Al Viro:
 "Assorted stuff all over the place"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  useful constants: struct qstr for ".."
  hostfs_open(): don't open-code file_dentry()
  whack-a-mole: kill strlen_user() (again)
  autofs: should_expire() argument is guaranteed to be positive
  apparmor:match_mn() - constify devpath argument
  buffer: a small optimization in grow_buffers
  get rid of autofs_getpath()
  constify dentry argument of dentry_path()/dentry_path_raw()

diff --cc arch/riscv/include/asm/uaccess.h
Simple merge

diff --cc fs/ext2/namei.c
Simple merge

diff --cc fs/ext4/namei.c
Simple merge

diff --cc fs/f2fs/namei.c
Simple merge

diff --cc fs/fuse/inode.c
Simple merge

diff --cc fs/hostfs/hostfs_kern.c
Simple merge

diff --cc fs/nilfs2/namei.c
Simple merge