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

Pratyush Anand panand at redhat.com
Mon Oct 31 01:17:33 PDT 2016

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

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(-)


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