Re: [PATCH 09/12] PM / OPP: Move away from RCU locking

[PATCH 00/12] PM / OPP: Use kref and move away from RCU locking · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
[PATCH 07/12] PM / OPP: Update OPP users to put reference · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 07/12] PM / OPP: Update OPP users to put reference · Chanwoo Choi <cw00.choi@samsung.com> · 2016-12-07
Re: [PATCH 07/12] PM / OPP: Update OPP users to put reference · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-08
Re: [PATCH 07/12] PM / OPP: Update OPP users to put reference · Chanwoo Choi <hidden> · 2017-01-21
[PATCH 08/12] PM / OPP: Take kref from _find_opp_table() · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 08/12] PM / OPP: Take kref from _find_opp_table() · Stephen Boyd <hidden> · 2017-01-09
[PATCH 12/12] PM / OPP: Update Documentation to remove RCU specific bits · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 12/12] PM / OPP: Update Documentation to remove RCU specific bits · Stephen Boyd <hidden> · 2017-01-09
Re: [PATCH 12/12] PM / OPP: Update Documentation to remove RCU specific bits · Viresh Kumar <viresh.kumar@linaro.org> · 2017-01-10
Re: [PATCH 12/12] PM / OPP: Update Documentation to remove RCU specific bits · Stephen Boyd <hidden> · 2017-01-13
[PATCH 09/12] PM / OPP: Move away from RCU locking · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 09/12] PM / OPP: Move away from RCU locking · Stephen Boyd <hidden> · 2017-01-09
Re: [PATCH 09/12] PM / OPP: Move away from RCU locking · Viresh Kumar <viresh.kumar@linaro.org> · 2017-01-10
[PATCH 10/12] PM / OPP: Simplify _opp_set_availability() · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 10/12] PM / OPP: Simplify _opp_set_availability() · Stephen Boyd <hidden> · 2017-01-10
[PATCH 11/12] PM / OPP: Simplify dev_pm_opp_get_max_volt_latency() · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 11/12] PM / OPP: Simplify dev_pm_opp_get_max_volt_latency() · Stephen Boyd <hidden> · 2017-01-09
[PATCH 01/12] PM / OPP: Add per OPP table mutex · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 01/12] PM / OPP: Add per OPP table mutex · Stephen Boyd <hidden> · 2017-01-09
[PATCH 03/12] PM / OPP: Return opp_table from dev_pm_opp_set_*() routines · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 03/12] PM / OPP: Return opp_table from dev_pm_opp_set_*() routines · Stephen Boyd <hidden> · 2017-01-09
[PATCH 06/12] PM / OPP: Add 'struct kref' to struct dev_pm_opp · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 06/12] PM / OPP: Add 'struct kref' to struct dev_pm_opp · Stephen Boyd <hidden> · 2017-01-09
Re: [PATCH 06/12] PM / OPP: Add 'struct kref' to struct dev_pm_opp · Viresh Kumar <viresh.kumar@linaro.org> · 2017-01-10
Re: [PATCH 06/12] PM / OPP: Add 'struct kref' to struct dev_pm_opp · Stephen Boyd <hidden> · 2017-01-13
Re: [PATCH 06/12] PM / OPP: Add 'struct kref' to struct dev_pm_opp · Viresh Kumar <viresh.kumar@linaro.org> · 2017-01-13
Re: [PATCH 06/12] PM / OPP: Add 'struct kref' to struct dev_pm_opp · Stephen Boyd <hidden> · 2017-01-19
[PATCH 02/12] PM / OPP: Add 'struct kref' to OPP table · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 02/12] PM / OPP: Add 'struct kref' to OPP table · Stephen Boyd <hidden> · 2017-01-09
Re: [PATCH 02/12] PM / OPP: Add 'struct kref' to OPP table · Viresh Kumar <viresh.kumar@linaro.org> · 2017-01-10
Re: [PATCH 02/12] PM / OPP: Add 'struct kref' to OPP table · Stephen Boyd <hidden> · 2017-01-13
[PATCH 04/12] PM / OPP: Take reference of the OPP table while adding/removing OPPs · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 04/12] PM / OPP: Take reference of the OPP table while adding/removing OPPs · Stephen Boyd <hidden> · 2017-01-09
[PATCH 05/12] PM / OPP: Use dev_pm_opp_get_opp_table() instead of _add_opp_table() · Viresh Kumar <viresh.kumar@linaro.org> · 2016-12-07
Re: [PATCH 05/12] PM / OPP: Use dev_pm_opp_get_opp_table() instead of _add_opp_table() · Stephen Boyd <hidden> · 2017-01-09
Re: [PATCH 00/12] PM / OPP: Use kref and move away from RCU locking · "Rafael J. Wysocki" <rafael@kernel.org> · 2016-12-07

From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2017-01-10 04:29:03
Also in: lkml

On 09-01-17, 15:57, Stephen Boyd wrote:

I suppose this is one thing RCU was being used for, marking OPPs
available and then having these "getter" APIs fail if the OPPs go
away. But that was never right because the OPP could have been
made unavailable after this function returned and things still
wouldn't work.

Right, it was all so confusing with RCUs in OPP library :)

-- 
viresh

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