[Intel-gfx] [PATCH] [RFC] kernel/cpu: Use lockref for online CPU reference counting

Joonas Lahtinen joonas.lahtinen at linux.intel.com
Wed Feb 17 12:47:31 UTC 2016

On ti, 2016-02-16 at 12:07 +0100, Peter Zijlstra wrote:
> On Tue, Feb 16, 2016 at 12:51:03PM +0200, Joonas Lahtinen wrote:
> > Quoting my original patch;
> > 
> > "See the Bugzilla link for more details.
> If its not in the Changelog it doesn't exist. Patches should be self
> contained and not refer to external sources for critical information.

The exact locking case in CPUfreq drivers causing a splat is described
in the patch. Details were already included, that's why term "more
details" was used.

This is not exactly taking us closer to a fix, so I'd rather like to
discuss about the possibility of adding one more member to task_struct.
I added Oleg as CC to catch his attention to re-evaluate based on the
previous discussion in this thread.

Regards, Joonas

Joonas Lahtinen
Open Source Technology Center
Intel Corporation

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