[PATCH 0/2] Fix page_owner broken on arm64

[Chen Jun]

On arm64, cat /sys/kernel/debug/page_owner
All pages return the same stack
 stack_trace_save+0x4c/0x78
 register_early_stack+0x34/0x70
 init_page_owner+0x34/0x230
 page_ext_init+0x1bc/0x1dc

The reason is arch_stack_walk save 2 more entries than before.

To fix it, add skip in arch_stack_walk

*** BLURB HERE ***

1. Prepare for 2, move stacktrace_cookie to .h
2. Fix the problem

Chen Jun (2):
  stacktrace: Move struct stacktrace_cookie to stacktrace.h
  arm64: stacktrace: Add skip when task == current

 arch/arm64/kernel/stacktrace.c | 5 +++--
 include/linux/stacktrace.h     | 7 +++++++
 kernel/stacktrace.c            | 7 -------
 3 files changed, 10 insertions(+), 9 deletions(-)

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2.9.4