Russell King e6978e4bf1 ARM: save and reset the address limit when entering an exception ...

When we enter an exception, the current address limit should not apply
to the exception context: if the exception context wishes to access
kernel space via the user accessors (eg, perf code), it must explicitly
request such access.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

2016-07-07 16:01:01 +01:00

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