tree 9674d3bf3999833f9e9ee562bd6113509b94f684
parent a55ee1ff751f88252207160087d8197bb7538d4c
author David S. Miller <davem@davemloft.net> 1361308808 -0800
committer David S. Miller <davem@davemloft.net> 1361382368 -0800

sparc64: Handle hugepage TSB being NULL.

Accomodate the possibility that the TSB might be NULL at
the point that update_mmu_cache() is invoked.  This is
necessary because we will sometimes need to defer the TSB
allocation to the first fault that happens in the 'mm'.

Seperate out the hugepage PTE test into a seperate function
so that the logic is clearer.

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