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authorThomas Gleixner <tglx@linutronix.de>2010-09-27 12:44:32 +0000
committerThomas Gleixner <tglx@linutronix.de>2010-10-04 12:43:32 +0200
commitf8822657e799b02c55556c99a601261e207a299d (patch)
tree5a263bd4df600d7b090d1216e2b8462c121a7588 /kernel
parent6b8ff3120c758340505dddf08ad685ebb841d5d5 (diff)
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genirq: Provide advanced irq chip functions
The low level irq chip functions want access to irq_desc->irq_data. Provide new functions which hand down irq_data instead of the irq number so these functions avoid to call irq_to_desc() which is a radix tree lookup in case of sparse irq. This provides all the old functions except one: end(). end() is a relict of __do_IRQ() and will just go away with the __do_IRQ() code. The replacement for set_affinity() has an extra argument "bool force". The reason for this is to notify the low level code, that the move has to be done right away and cannot be delayed until the next interrupt happens. That's necessary to handle the irq fixup on cpu unplug in the generic code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20100927121841.742126604@linutronix.de> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
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