powerpc/mm: Invalidate subpage_prot() system call on radix platforms
Radix enabled platforms don't support subpage_prot() system calls. But at present the system call goes through without an error and fails later on while validating expected subpage accesses. Lets not allow the system call on powerpc radix platforms to begin with to prevent this confusion in user space. Signed-off-by:Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
parent
3350eb2e
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