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@xxxxxxx/ 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