Greg KH wrote:
Add a sysfs entry "probe" under /sys/devices/system/node/:
- to show all fake offlined nodes:
$ cat /sys/devices/system/node/probe
- to hotadd a fake offlined node, e.g. nodeid is N:
$ echo N > /sys/devices/system/node/probe
As you are trying to add a new sysfs file, please create the matching
Documentation/ABI/ file as well.
Yes, we missed it. thank you.
Also note that sysfs files are "one value per file", which I don't think
this file follows, right?
Sorry, we didn't make the descriptions clear enough.
It should follow "one value per file". It intends to show acceptable parameters.
For example, if we have 4 fake offlined nodes, like node 2-5, then:
$ cat /sys/devices/system/node/probe
2-5
Then user hotadds node3 to system:
$ echo 3 > /sys/devices/system/node/probe
$ cat /sys/devices/system/node/probe
2,4-5
-haicheng
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