linux-stable/kernel/irq
Peter P Waskiewicz Jr 4308ad8011 genirq: Clear CPU mask in affinity_hint when none is provided
When an interrupt is disabled and torn down, the CPU mask returned
through affinity_hint right now is all CPUs. Also, for drivers that
don't provide an affinity_hint mask, this can be misleading. There
should be no hint at all, meaning an empty CPU mask.

[ tglx: use zalloc_cpumask_var instead of clearing it under the lock ]

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Cc: davem@davemloft.net
Cc: arjan@linux.jf.intel.com
Cc: bhutchings@solarflare.com
LKML-Reference: <20100505205638.5426.87189.stgit@ppwaskie-hc2.jf.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2010-05-12 11:23:34 +02:00
..
autoprobe.c genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00
chip.c Merge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-26 15:09:06 -07:00
devres.c devres/irq: Fix devm_irq_match comment 2010-02-11 16:01:02 +01:00
handle.c genirq: Run irq handlers with interrupts disabled 2010-04-13 16:36:40 +02:00
internals.h sparseirq: Change irq_desc_ptrs to static 2010-02-17 17:27:03 -08:00
Makefile x86/irq: use move_irq_desc() in create_irq_nr() 2009-05-01 19:01:12 +02:00
manage.c genirq: Add CPU mask affinity hint 2010-05-03 11:50:57 +02:00
migration.c genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00
numa_migrate.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pm.c genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00
proc.c genirq: Clear CPU mask in affinity_hint when none is provided 2010-05-12 11:23:34 +02:00
resend.c irq: Remove superfluous NULL pointer check in check_irq_resend() 2009-08-09 12:44:29 +02:00
spurious.c genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00