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irq_work: Introduce arch_irq_work_has_interrupt()

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The nohz full code needs irq work to trigger its own interrupt so that
the subsystem can work even when the tick is stopped.

Lets introduce arch_irq_work_has_interrupt() that archs can override to
tell about their support for this ability.

Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
This commit is contained in:
Peter Zijlstra 2014-09-06 15:43:02 +02:00 • committed by Frederic Weisbecker
commit c5c38ef3d7
31 changed files with 42 additions and 1 deletions
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1
arch/alpha/include/asm/Kbuild
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@ -4,6 +4,7 @@ generic-y += clkdev.h
generic-y += cputime.h
generic-y += exec.h
generic-y += hash.h
generic-y += irq_work.h
generic-y += mcs_spinlock.h
generic-y += preempt.h
generic-y += scatterlist.h