Merge branch 'sparc32-SRMMU-fixes-for-SMP'

Will Deacon says:

====================
sparc32 SRMMU fixes for SMP

Enabling SMP for sparc32 uncovered some issues in the SRMMU page-table
allocation code. One of these was introduced by me, but the other two
seem to have been there a while and are probably just exposed more
easily by my recent changes.

Tested on QEMU. I'm assuming these will go via David's tree.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>