[git pull] bcachefs locking fix

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Looks like Kent hadn't merged that into his branch for some reason;
IIRC, he'd been OK with the fix and had no objections to that stuff
sitting in -next, so...

Kent, if you *do* have objections, please make them now.

The following changes since commit b85ea95d086471afb4ad062012a4d73cd328fa86:

  Linux 6.7-rc1 (2023-11-12 16:19:07 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git tags/pull-bcachefs-fix

for you to fetch changes up to bbe6a7c899e7f265c5a6d01a178336a405e98ed6:

  bch2_ioctl_subvolume_destroy(): fix locking (2023-11-15 22:47:58 -0500)

----------------------------------------------------------------
fix buggered locking in bch2_ioctl_subvolume_destroy()

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

----------------------------------------------------------------
Al Viro (2):
      new helper: user_path_locked_at()
      bch2_ioctl_subvolume_destroy(): fix locking

 fs/bcachefs/fs-ioctl.c | 31 +++++++++++++++++--------------
 fs/namei.c             | 16 +++++++++++++---
 include/linux/namei.h  |  1 +
 3 files changed, 31 insertions(+), 17 deletions(-)




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