sparc64: Like x86 we should check current->mm during perf backtrace generation.

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If the MM is not active, only report the top-level PC.  Do not try to
access the address space.

Signed-off-by: David S. Miller <davem@davemloft.net>

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David S. Miller 2012-10-14 17:59:40 -07:00

parent ddffeb8c4d

commit 08280e6c4c

1 changed files with 5 additions and 4 deletions

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arch/sparc/kernel/perf_event.c

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