On Wed, Nov 28, 2012 at 5:19 AM, Rafael J. Wysocki [off-list ref] wrote:
Please use counters instead of walking the whole path every time. Ie. in
addition to the flag add a counter to store the number of the device's
children having that flag set.
Even though counter is added, walking the whole path can't be avoided too,
and may be a explicit walking or recursion, because pm_runtime_set_memalloc_noio
is required to set or clear the flag(or increase/decrease the counter) of
devices in the whole path.
Thanks,
--
Ming Lei
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