[PATCH 0/8] PM / Domains: Re-structure code for adding/removing devices to genpd

[Rafael J. Wysocki]

On Tuesday, January 27, 2015 09:13:37 PM Ulf Hansson wrote:
> While adding error handling of genpd's ->attach_dev() callback, I realized that
> we also had a need to re-structure some of the code which deals with
> adding/removing devices to genpd. Especially the APIs, __pm_genpd_add_device()
> and pm_genpd_remove_device() deserved some attention.
> 
> Patch 1 -> 4, can be considered as more simple cleanups and should not impact
> the behavior for current clients using the APIs. 
> 
> Patch 5, eliminates a mutex for generic_pm_domain_data by re-order the
> initialization/cleanup of dev_pm_qos notifiers.
> 
> Patch 6, move some code around to fix a potenial memory leakage of a struct
> pm_subsys_data.
> 
> Patch 7, code restructuring which impacts locking behavior while adding/removing
> devices. Should improve code readability and decrease critical regions of
> holding locks.
> 
> Patch 8, Adds error handling of genpd's ->attach_dev() callback
> 
> 
> Ulf Hansson (8):
>   PM / Domains: Rename __pm_genpd_alloc|free_dev_data()
>   PM / Domains: Remove reference counting for the generic_pm_domain_data
>   PM / Domains: Don't allow an existing generic_pm_domain_data
>   PM / Domains: Don't check for an existing device when adding a new
>   PM / Domains: Eliminate the mutex for the generic_pm_domain_data
>   PM / Domains: Free pm_subsys_data in error path in
>     __pm_genpd_add_device()
>   PM / Domains: Re-order initialization of generic_pm_domain_data
>   PM / Domains: Handle errors from genpd's ->attach_dev() callback
> 
>  drivers/base/power/domain.c | 137 +++++++++++++++++++++-----------------------
>  include/linux/pm_domain.h   |   2 -
>  2 files changed, 65 insertions(+), 74 deletions(-)

Whole series queued up for 3.20, thanks!


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.