On Thu, Sep 01, 2016 at 05:30:52PM +0100, Mark Rutland wrote: > On Tue, Aug 30, 2016 at 01:01:33PM -0400, Neil Leeder wrote: > > +static DEFINE_MUTEX(l2cache_pmu_mutex); > > A mutex (which can sleep) is not safe for the hotplug state machine > stuff. See recent patches to the arm_pmu code. > > That's further subsumed by the multi-instance stuff, so this (and the > list) will not be necessary shortly. This has *just* landed in tip. See the smp/hotplug branch [1]. The arm_pmu change [2] should serve as an example of what to do. Thanks, Mark. [1] https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/log/?h=smp/hotplug [2] https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=smp/hotplug&id=cc727977acb0fe05b7aa1f00cccb893530820895 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
