[PATCH 0/5] fix validation races and cleanup locking

[Vlastimil Babka <vbabka@suse.cz>]

This series builds on the validation races fix posted previously [1]
that became patch 2 here and contains all the details in its
description.

Thanks to Hyeonggon Yoo's observation, patch 3 removes more slab_lock()
usage that became unnecessary after patch 2.

This made it possible to further simplify locking code in patches 4 and
5. Since those are related to PREEMPT_RT, I'm CCing relevant people on
this series.

[1] https://lore.kernel.org/all/20220809140043.9903-1-vbabka@suse.cz/

Vlastimil Babka (5):
  mm/slub: move free_debug_processing() further
  mm/slub: restrict sysfs validation to debug caches and make it safe
  mm/slub: remove slab_lock() usage for debug operations
  mm/slub: convert object_map_lock to non-raw spinlock
  mm/slub: simplify __cmpxchg_double_slab() and slab_[un]lock()

 mm/slub.c | 417 +++++++++++++++++++++++++++++++++---------------------
 1 file changed, 252 insertions(+), 165 deletions(-)

-- 
2.37.1