Ram Pai bca7aacfe8 powerpc: check key protection for user page access
Make sure that the kernel does not access user pages without
checking their key-protection.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
[mpe: Integrate with upstream version of pte_access_permitted()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-01-20 22:59:04 +11:00
..