On Mon, 2015-05-18 at 10:54 +0200, Ingo Molnar wrote:

* Michael Ellerman [off-list ref] wrote:

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Yes it is. I have my own version I've cobbled together for 
powerpc, but this is much better.

Please double check the PowerPC support matrix for correctness (if 
you haven't yet):

It looks good except for:

quoted

       rwsem-optimized:  |  ok  |                              Optimized asm/rwsem.h #  arch provides optimized rwsem APIs

I don't see an rwsem.h in powerpc anywhere?

Indeed, that slipped through. I fixed it to:

    triton:~/tip> cat Documentation/features/locking/rwsem-optimized/arch-support.txt 
    #
    # Feature name:          rwsem-optimized
    #         Kconfig:       Optimized asm/rwsem.h
    #         description:   arch provides optimized rwsem APIs
    #
        |     powerpc: | TODO |

    triton:~/tip> cat Documentation/features/time/irq-time-acct/arch-support.txt
    #
    # Feature name:          irq-time-acct
    #         Kconfig:       HAVE_IRQ_TIME_ACCOUNTING
    #         description:   arch supports precise IRQ time accounting
    #
        |     powerpc: |  ..  |

i.e. it's not marked as TODO, but not as supported either which would 
be misleading.

Great thanks.

cheers