From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 21 Dec 2022 17:54:00 +0000 (-0800)
Subject: Merge tag 'fs.mount.propagation.fix.v6.2-rc1' of git://git.kernel.org/pub/scm/linux... 
X-Git-Tag: v6.6.7~3837
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=04065c12072b6124475c7c4f6ad7484475a2f66e;p=platform%2Fkernel%2Flinux-starfive.git

Merge tag 'fs.mount.propagation.fix.v6.2-rc1' of git://git./linux/kernel/git/vfs/idmapping

Pull mount propagation fix from Christian Brauner:
 "The propagate_mnt() function handles mount propagation when creating
  mounts and propagates the source mount tree @source_mnt to all
  applicable nodes of the destination propagation mount tree headed by
  @dest_mnt.

  Unfortunately it contains a bug where it fails to terminate at peers
  of @source_mnt when looking up copies of the source mount that become
  masters for copies of the source mount tree mounted on top of slaves
  in the destination propagation tree causing a NULL dereference.

  This fixes that bug (with a long commit message for a seven character
  fix but hopefully it'll help us fix issues faster in the future rather
  than having to go through the pain of having to relearn everything
  once more)"

* tag 'fs.mount.propagation.fix.v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  pnode: terminate at peers of source
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04065c12072b6124475c7c4f6ad7484475a2f66e