mm/slub: convert object_map_lock to non-raw spinlock

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The only remaining user of object_map_lock is list_slab_objects().
Obtaining the lock there used to happen under slab_lock() which implied
disabling irqs on PREEMPT_RT, thus it's a raw_spinlock. With the
slab_lock() removed, we can convert it to a normal spinlock.

Also remove the get_map()/put_map() wrappers as list_slab_objects()
became their only remaining user.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

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Vlastimil Babka 2022-08-23 19:03:59 +02:00

parent 41bec7c33f

commit 4ef3f5a320

1 changed files with 6 additions and 30 deletions

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mm/slub.c

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