Messages in this thread | | | Subject | Re: Idle loadavg of ~1, maybe MD related | From | Benjamin Herrenschmidt <> | Date | Sun, 06 Jan 2008 14:53:12 +1100 |
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> Maybe, but we can usually work around it pretty comfortably. > > If smu_set_fan() is only ever called by a kernel thread then we can simply > flip it over to using wait_for_completion_interruptible().
Hrm... as of today, it's mostly called from a kernel thread but I don't totally iron out the possibility that we add control to those things via sysfs... But that's definitely an option for now.
However, that's only part of the problem. There's a lot of I2C accesses (and other SMU accesses to read SMU based sensors) and I doubt we can make all of that "magically" interruptible.
I would much prefer if we had a way to tag a kernel thread to not add to the load average when in interruptible sleep :-)
> If smu_set_fan() is also called from user processes then things aren't so > easy...
Ben.
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