+ 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
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