[PATCH 0/3] cpu freq: fix problems with work_on_cpu usage in acpi-cpufreq

[Mike Travis]

This set of patches improves the work_on_cpu() function to
eliminate circular lock dependencies from occurring by requiring
the caller to insure the cpu does not go offline.  This effectively
models the previous behaviour using set_cpus_allowed().

The other fix is to use a separate work queue for work_on_cpu so
it does not clash with kevent items that might already be on the
queue from the same caller.

This fixes the boot up and suspend/resume to disk problems previously
seen.

Signed-off-by: Mike Travis <travis@xxxxxxx>
Cc: Dieter Ries <clip2@xxxxxx>
Cc: Maciej Rutecki <maciej.rutecki@xxxxxxxxx>
Cc: Dave Jones <davej@xxxxxxxxxx>
Cc: <cpufreq@xxxxxxxxxxxxxxx>

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