tree a0ad3e76e4e750485157b75a458502995e48da1d
parent dd0b52c47a2d71b7960c9a5ce7d51f17ed03d9f5
author Gavin Shan <gwshan@linux.vnet.ibm.com> 1456446386 +1100
committer Michael Ellerman <mpe@ellerman.id.au> 1462967649 +1000

powerpc/mm: Improve readability of update_mmu_cache()

The function is used to update the MMU with software PTE. It can
be called by data access exception handler (0x300) or instruction
access exception handler (0x400). If the function is called by
0x400 handler, the local variable @access is set to _PAGE_EXEC
to indicate the software PTE should have that flag set. When the
function is called by 0x300 handler, @access is set to zero.

This improves the readability of the function by replacing if
statements with switch. No logical changes introduced.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>