This is an all-in-one Update of Vlastimil Babka's SLUB to
slub-local-lock-v6r2.

Link: https://lkml.kernel.org/r/20210904105003.11688-1-vbabka@suse.cz


Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>