Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH v12 07/11] mm: Add address parameter to arch_validate_prot() | Date | Mon, 26 Feb 2018 16:54:12 +1100 |
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Khalid Aziz <khalid.aziz@oracle.com> writes:
> A protection flag may not be valid across entire address space and > hence arch_validate_prot() might need the address a protection bit is > being set on to ensure it is a valid protection flag. For example, sparc > processors support memory corruption detection (as part of ADI feature) > flag on memory addresses mapped on to physical RAM but not on PFN mapped > pages or addresses mapped on to devices. This patch adds address to the > parameters being passed to arch_validate_prot() so protection bits can > be validated in the relevant context. > > Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com> > Cc: Khalid Aziz <khalid@gonehiking.org> > Reviewed-by: Anthony Yznaga <anthony.yznaga@oracle.com> > --- > v8: > - Added addr parameter to powerpc arch_validate_prot() (suggested > by Michael Ellerman) > v9: > - new patch > > arch/powerpc/include/asm/mman.h | 4 ++-- > arch/powerpc/kernel/syscalls.c | 2 +-
These changes look fine to me:
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
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