Messages in this thread |  | | | Date | Tue, 16 Jun 2009 22:03:52 +0530 | | From | Gautham R Shenoy <> | | Subject | Re: [RFD PATCH 2/4] cpu: sysfs interface for hotplugging bunch of CPUs. |
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On Tue, Jun 16, 2009 at 11:22:56AM -0500, Nathan Lynch wrote: > 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...
No, they aren't intended to be in the final result.
-- Thanks and Regards gautham
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