x86_64: Report the pending irq if available in smp_affinity
Otherwise smp_affinity would only update after the next interrupt on x86 systems. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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