[Note: all these changes require some more testing but I wanted to solicit
comments before then, hence the "RFC" in the subject line. -thanks! Mike]

  * Change the genapic->send_IPI_mask function to accept cpumask_t pointer.

  * Add for_each_online_cpu_mask_nr to eliminate a common case of needing
    a temporary on-stack cpumask_t variable.

  * Change send_IPI_mask function in xen to use for_each_online_cpu_mask_nr().

  * Add cpumask_ptr operations.

  * Add get_cpumask_var debug operations.

  * Add global allbutself PER_CPUMASK variable.

  * Remove as many on-stack cpumask_t variables in kernel/sched.c

  * Remove as many on-stack cpumask_t variables in acpi-cpufreq.c

  * Remove as many on-stack cpumask_t variables in io_apic.c


Applies to linux-2.6.tip/master.

Signed-off-by: Mike Travis <travis@sgi.com>
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