[Makedumpfile PATCH V2 0/4] x86_64: Fix page_offset for randomized base enabled

[Atsushi Kumagai]

Hello Pratyush,

>Patch 1/4 fixes page_offset calculation, so that it is correctly calculated
>on KASLR enabled kernel as well.
>Patch 2/4 simplifies VA to PA translation. New code has been benchmarked
>against old code on a 4T system.
>Patch 3/4 and 4/4 is removal of (now) unnecessary code.
>
>I think, we should find a way to kill find_vememmap() as well, so that
>VMEMMAP_START can be removed. I have very limited idea about x86, so unable
>to do that as of now.
>
>Changes since V1:
>* A bug in patch 1/4 fixed
>* Patch log of 2/4 improved to include more number of trials

The most of concern was the performance degradation, but
there is no degradation in the additional benchmark.
So I decide to merge this patch set into v1.6.1,
thanks for your work.


Regards,
Atsushi Kumagai

>Pratyush Anand (4):
>  x86_64: Calculate page_offset from pt_load
>  x86_64: translate all VA to PA using page table values
>  x86_64: kill is_vmalloc_addr_x86_64()
>  x86_64: kill some unused initialization
>
> arch/x86_64.c  | 84 ++++++++++++++++++++--------------------------------------
> makedumpfile.h |  9 +++----
> 2 files changed, 32 insertions(+), 61 deletions(-)
>
>--
>2.7.4
>
>
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