Merge tag 'apparmor-pr-2023-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor

Pull apparmor updates from John Johansen:
 "This adds initial support for mediating io_uring and userns creation.
  Adds a new restriction that tightens the use of change_profile, and a
  couple of optimizations to reduce performance bottle necks that have
  been found when retrieving the current task's secid and allocating
  work buffers.

  The majority of the patch set continues cleaning up and simplifying
  the code (fixing comments, removing now dead functions, and macros
  etc). Finally there are 4 bug fixes, with the regression fix having
  had a couple months of testing.

  Features:
   - optimize retrieving current task secid
   - add base io_uring mediation
   - add base userns mediation
   - improve buffer allocation
   - allow restricting unprivilege change_profile

  Cleanups:
   - Fix kernel doc comments
   - remove unused declarations
   - remove unused functions
   - remove unneeded #ifdef
   - remove unused macros
   - mark fns static
   - cleanup fn with unused return values
   - cleanup audit data
   - pass cred through to audit data
   - refcount the pdb instead of using duplicates
   - make SK_CTX macro an inline fn
   - some comment cleanups

  Bug fixes:
   - fix regression in mount mediation
   - fix invalid refenece
   - use passed in gfp flags
   - advertise avaiability of extended perms and disconnected.path"

* tag 'apparmor-pr-2023-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: (39 commits)
  apparmor: Fix some kernel-doc comments
  apparmor: Fix one kernel-doc comment
  apparmor: Fix some kernel-doc comments
  apparmor: mark new functions static
  apparmor: Fix regression in mount mediation
  apparmor: cache buffers on percpu list if there is lock contention
  apparmor: add io_uring mediation
  apparmor: add user namespace creation mediation
  apparmor: allow restricting unprivileged change_profile
  apparmor: advertise disconnected.path is available
  apparmor: refcount the pdb
  apparmor: provide separate audit messages for file and policy checks
  apparmor: pass cred through to audit info.
  apparmor: rename audit_data->label to audit_data->subj_label
  apparmor: combine common_audit_data and apparmor_audit_data
  apparmor: rename SK_CTX() to aa_sock and make it an inline fn
  apparmor: Optimize retrieving current task secid
  apparmor: remove unused functions in policy_ns.c/.h
  apparmor: remove unneeded #ifdef in decompress_zstd()
  apparmor: fix invalid reference on profile->disconnected
  ...

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