slub: Get rid of slab_free_hook_irq()
The following patch will make the fastpaths lockless and will no longer require interrupts to be disabled. Calling the free hook with irq disabled will no longer be possible. Move the slab_free_hook_irq() logic into slab_free_hook. Only disable interrupts if the features are selected that require callbacks with interrupts off and reenable after calls have been made. Signed-off-by: NChristoph Lameter <cl@linux.com> Signed-off-by: NPekka Enberg <penberg@kernel.org>
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