On Thu, 2010-05-13 at 09:55 -0700, 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. > > Also note that sysfs files are "one value per file", which I don't think > this file follows, right? I think in this case, it was meant to be a list of acceptable parameters rather than a set of values, kinda like /sys/power/state. Instead, I guess we could have: /sys/devices/system/node/probeable/3 /sys/devices/system/node/probeable/43 /sys/devices/system/node/probeable/65 /sys/devices/system/node/probeable/5145 and the knowledge that you need to pick one of those to echo into /sys/devices/system/node/probe. But, it's a lot more self explanatory if you 'cat /sys/devices/system/node/probe', and then pick one of those to echo back into the file. Seems like a decent place to violate the "rule". :) -- Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>