Re: [PATCH v2 0/4] MCS Lock: MCS lock code cleanup and optimizations

[Michel Lespinasse]

On Tue, Nov 5, 2013 at 9:42 AM, Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx> wrote:
> In this patch series, we separated out the MCS lock code which was
> previously embedded in the mutex.c.  This allows for easier reuse of
> MCS lock in other places like rwsem and qrwlock.  We also did some micro
> optimizations and barrier cleanup.
>
> This patches were previously part of the rwsem optimization patch series
> but now we spearate them out.
>
> Tim Chen
>
> v2:
> 1. change export mcs_spin_lock as a GPL export symbol
> 2. corrected mcs_spin_lock to references
>
> Jason Low (2):
>   MCS Lock: optimizations and extra comments
>   MCS Lock: Barrier corrections
>
> Tim Chen (1):
>   MCS Lock: Restructure the MCS lock defines and locking code into its
>     own file
>
> Waiman Long (1):
>   MCS Lock: Make mcs_spinlock.h includable in other files
>
>  include/linux/mcs_spinlock.h |   99 ++++++++++++++++++++++++++++++++++++++++++
>  include/linux/mutex.h        |    5 +-
>  kernel/Makefile              |    6 +-
>  kernel/mcs_spinlock.c        |   21 +++++++++
>  kernel/mutex.c               |   60 +++----------------------
>  5 files changed, 133 insertions(+), 58 deletions(-)
>  create mode 100644 include/linux/mcs_spinlock.h
>  create mode 100644 kernel/mcs_spinlock.c

What base kernel does this apply over ?

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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