[PATCH v2 0/7] fix fanotify issues with the series in v4.12

[Miklos Szeredi]

We discovered some problems in the latest fsnotify/fanotify codebase with
the help of a stress test (Xiong Zhou is working on upstreaming it to
fstests).

This series attempts to fix these.  With the patch applied the stress test
passes.

Please review/test.

Changes in v2 (only cosmetic fixes, no functional change):
 - split first patch into 3 parts to make it more readable
 - checkpatch fixes
 - added cleanup patch for fanotify

Thanks,
Miklos
---

Miklos Szeredi (7):
  fsnotify: clean up fsnotify_prepare/finish_user_wait()
  fsnotify: pin both inode and vfsmount mark
  fsnotify: fix pinning group in fsnotify_prepare_user_wait()
  fsnotify: skip unattached marks
  fanotify: fix fsnotify_prepare_user_wait() failure
  fsnotify: clean up fsnotify()
  fanotify: clean up CONFIG_FANOTIFY_ACCESS_PERMISSIONS ifdefs

 fs/notify/fanotify/fanotify.c      |  49 ++++++---------
 fs/notify/fanotify/fanotify.h      |   8 ++-
 fs/notify/fanotify/fanotify_user.c | 123 ++++++++++++++++++-------------------
 fs/notify/fsnotify.c               | 108 ++++++++++++++++----------------
 fs/notify/mark.c                   | 100 ++++++++++++++----------------
 include/linux/fsnotify_backend.h   |   2 -
 6 files changed, 184 insertions(+), 206 deletions(-)

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2.5.5