[GIT PULL] vfs fixes

[Christian Brauner]

Hey Linus,

/* Summary */

This contains another round of fixes for this cycle:

- Fix a regression in overlayfs caused by reworking the lookup_one*()
  set of helpers.

- Make sure that the name of the dentry is printed in
  overlayfs' mkdir() helper.

- Add missing iocb values to TRACE_IOCB_STRINGS define.

- Unlock the superblock during iterate_supers_type().
  This was an accidental internal api change.

- Drop a misleading assert in file_seek_cur_needs_f_lock() helper.

- Never refuse to return PIDFD_GET_INGO when parent pid is zero.
  That can trivially happen in container scenarios where the parent
  process might be located in an ancestor pid namespace.

- Don't revalidate in try_lookup_noperm() as that causes regression for
  filesystems such as cifs.

- Fix simple_xattr_list() and reset the err variable after
  security_inode_listsecurity() got called so as not to confuse
  userspace about the length of the xattr.

/* Testing */

gcc (Debian 14.2.0-19) 14.2.0
Debian clang version 19.1.7 (3)

No build failures or warnings were observed.

/* Conflicts */

Merge conflicts with mainline
=============================

No known conflicts.

Merge conflicts with other trees
================================

No known conflicts.

The following changes since commit 5abc7438f1e9d62e91ad775cc83c9594c48d2282:

  Merge tag 'nfs-for-6.16-1' of git://git.linux-nfs.org/projects/anna/linux-nfs (2025-06-03 16:13:32 -0700)

are available in the Git repository at:

  git@xxxxxxxxxxxxxxxxxxx:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.16-rc3.fixes

for you to fetch changes up to dd2d6b7f6f519d078a866a36a625b0297d81c5bc:

  fs: drop assert in file_seek_cur_needs_f_lock (2025-06-16 09:59:24 +0200)

Please consider pulling these changes from the signed vfs-6.16-rc3.fixes tag.

Thanks!
Christian

----------------------------------------------------------------
vfs-6.16-rc3.fixes

----------------------------------------------------------------
Amir Goldstein (2):
      ovl: fix regression caused by lookup helpers API changes
      ovl: fix debug print in case of mkdir error

Christoph Hellwig (1):
      fs: add missing values to TRACE_IOCB_STRINGS

Darrick J. Wong (1):
      fs: unlock the superblock during iterate_supers_type

Luis Henriques (1):
      fs: drop assert in file_seek_cur_needs_f_lock

Mike Yuan (1):
      pidfs: never refuse ppid == 0 in PIDFD_GET_INFO

NeilBrown (1):
      VFS: change try_lookup_noperm() to skip revalidation

Stephen Smalley (1):
      fs/xattr.c: fix simple_xattr_list()

 fs/file.c                |  8 ++++++--
 fs/namei.c               | 17 +++++++++++++----
 fs/overlayfs/namei.c     | 10 ++++++++--
 fs/overlayfs/overlayfs.h |  8 +++++---
 fs/pidfs.c               |  2 +-
 fs/super.c               |  4 +++-
 fs/xattr.c               |  1 +
 include/linux/fs.h       |  4 +++-
 8 files changed, 40 insertions(+), 14 deletions(-)