tree ebd37fd0270b7c7dfe8474a046663db78fcdb1ab
parent 9359e757709a211040e4b0151eae69248e7c6eca
author Paul Mundt <lethal@linux-sh.org> 1159337616 +0900
committer Paul Mundt <lethal@linux-sh.org> 1159337616 +0900

sh: page table alloc cleanups and page fault optimizations.

Cleanup of page table allocators, using generic folded PMD and PUD
helpers. TLB flushing operations are moved to a more sensible spot.

The page fault handler is also optimized slightly, we no longer waste
cycles on IRQ disabling for flushing of the page from the ITLB, since
we're already under CLI protection by the initial exception handler.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>