[GIT PULL] overlayfs update for 5.13

[Miklos Szeredi <miklos@szeredi.hu>]

Hi Linus,

Please pull from:

  git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git tags/ovl-update-5.13

- Fix a regression introduced in 5.2 that resulted in valid overlayfs
  mounts being rejected with ELOOP (Too many levels of symbolic links).

- Fix bugs found by various tools.

- Miscallenous improvements and cleanups.

Thanks,
Miklos

---
Amir Goldstein (4):
      ovl: check that upperdir path is not on a read-only mount
      ovl: restrict lower null uuid for "xino=auto"
      ovl: invalidate readdir cache on changes to dir with origin
      ovl: add debug print to ovl_do_getxattr()

Bhaskar Chowdhury (1):
      ovl: trivial typo fixes in the file inode.c

Chengguang Xu (2):
      ovl: fix error for ovl_fill_super()
      ovl: do not copy attr several times

Dan Carpenter (1):
      ovl: fix missing revert_creds() on error path

Giuseppe Scrivano (1):
      ovl: show "userxattr" in the mount data

Mickaël Salaün (1):
      ovl: fix leaked dentry

Miklos Szeredi (1):
      ovl: allow upperdir inside lowerdir

Sargun Dhillon (1):
      ovl: plumb through flush method

Xiong Zhenwu (1):
      ovl: fix misspellings using codespell tool

youngjun (1):
      ovl: remove ovl_map_dev_ino() return value

---
 Documentation/filesystems/overlayfs.rst | 26 ++++++-------
 fs/overlayfs/copy_up.c                  |  3 +-
 fs/overlayfs/file.c                     | 21 +++++++++++
 fs/overlayfs/inode.c                    | 18 ++++-----
 fs/overlayfs/namei.c                    |  1 +
 fs/overlayfs/overlayfs.h                | 37 ++++++++++++++++--
 fs/overlayfs/readdir.c                  | 12 ------
 fs/overlayfs/super.c                    | 66 +++++++++++++++++++++++++--------
 fs/overlayfs/util.c                     | 33 +++++------------
 9 files changed, 136 insertions(+), 81 deletions(-)