Messages in this thread | | | Subject | Re: [RFD PATCH 2/4] cpu: sysfs interface for hotplugging bunch of CPUs. | From | Nathan Lynch <> | Date | Tue, 16 Jun 2009 11:22:56 -0500 |
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Gautham R Shenoy <ego@in.ibm.com> writes: > echo 2,3 > /sys/devices/system/cpu/offline #Offlines CPUs 2 and 3 > echo 4 > /sys/devices/sytem/cpu/offline #Offlines CPU 4 > echo 2-4 > /sys/devices/system/cpu/online #Onlines CPU 2,3,4 > > This patch changes the permissions of these sysfs files from 0444 to 0644. > It provides a dummy store function, which currently parses the input > provided by the user and copies them to another debug cpumask structure, > which can be accessed using the sysfs interfaces: > /sys/devices/system/cpu/debug_offline > and > /sys/devices/system/cpu/debug_online > > Thus on performing a > echo 2,3 > /sys/devices/system/cpu/offline > the operation > cat /sys/devices/system/cpu/debug_offline > should yield > 2-3 > as the result.
These debug_(on|off)line attributes aren't intended to be in the final result, are they? They don't seem useful beyond the development phase of this feature...
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