jump_label: if a key has already been initialized, don't nop it out
If a key has been enabled before jump_label_init() is called, don't nop it out. This removes arch_jump_label_text_poke_early() (which can only nop out a site) and uses arch_jump_label_transform() instead. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Jason Baron <jbaron@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
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