mm/slub: simplify __cmpxchg_double_slab() and slab_[un]lock()

The PREEMPT_RT specific disabling of irqs in __cmpxchg_double_slab()
(through slab_[un]lock()) is unnecessary as bit_spin_lock() disables
preemption and that's sufficient on PREEMPT_RT where no allocation/free
operation is performed in hardirq context and so can't interrupt the
current operation.

That means we no longer need the slab_[un]lock() wrappers, so delete
them and rename the current __slab_[un]lock() to slab_[un]lock().

Signed-off-by: Vlastimil Babka <[email protected]>
Acked-by: David Rientjes <[email protected]>
Reviewed-by: Hyeonggon Yoo <[email protected]>
Reviewed-by: Sebastian Andrzej Siewior <[email protected]>

0 files changed, 0 insertions, 0 deletions