Messages in this thread | | | Date | Wed, 28 Nov 2012 12:34:36 +0800 | Subject | Re: [PATCH v6 2/6] PM / Runtime: introduce pm_runtime_set_memalloc_noio() | From | Ming Lei <> |
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On Wed, Nov 28, 2012 at 5:19 AM, Rafael J. Wysocki <rjw@sisk.pl> 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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