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authorRussell King <rmk+kernel@armlinux.org.uk>2016-05-13 13:40:20 +0300
committerRussell King <rmk+kernel@armlinux.org.uk>2016-07-07 18:01:01 +0300
commite6978e4bf181fb3b5f8cb6f71b4fe30fbf1b655c (patch)
treedddb20dbc9a5e594e406e71ed598039b33e0a4be /arch/arm/mm
parentdd665be0e243873343a28e18f9f345927b658daf (diff)
downloadlinux-e6978e4bf181fb3b5f8cb6f71b4fe30fbf1b655c.tar.xz
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>
Diffstat (limited to 'arch/arm/mm')
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