Hi Ingo,
Do you have any comments for the latest version of the patchset. If
not, kindly can you pick it up as is.
With regards
Maddy
> Kirill A. Shutemov with 8c6e50b029 commit introduced
> vm_ops->map_pages() for mapping easy accessible pages around
> fault address in hope to reduce number of minor page faults.
>
> This patch creates infrastructure to modify the FAULT_AROUND_ORDER
> value using mm/Kconfig. This will enable architecture maintainers
> to decide on suitable FAULT_AROUND_ORDER value based on
> performance data for that architecture. First patch also defaults
> FAULT_AROUND_ORDER Kconfig element to 4. Second patch list
> out the performance numbers for powerpc (platform pseries) and
> initialize the fault around order variable for pseries platform of
> powerpc.
>
> V4 Changes:
> Replaced the BUILD_BUG_ON with VM_BUG_ON.
> Moved fault_around_pages() and fault_around_mask() functions outside of
> #ifdef CONFIG_DEBUG_FS.
>
> V3 Changes:
> Replaced FAULT_AROUND_ORDER macro to a variable to support arch's that
> supports sub platforms.
> Made changes in commit messages.
>
> V2 Changes:
> Created Kconfig parameter for FAULT_AROUND_ORDER
> Added check in do_read_fault to handle FAULT_AROUND_ORDER value of 0
> Made changes in commit messages.
>
> Madhavan Srinivasan (2):
> mm: move FAULT_AROUND_ORDER to arch/
> powerpc/pseries: init fault_around_order for pseries
>
> arch/powerpc/platforms/pseries/pseries.h | 2 ++
> arch/powerpc/platforms/pseries/setup.c | 5 +++++
> mm/Kconfig | 8 ++++++++
> mm/memory.c | 25 ++++++-------------------
> 4 files changed, 21 insertions(+), 19 deletions(-)
>
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