From: David S. Miller <davem@davemloft.net>
Date: Tue, 19 Feb 2013 21:20:08 +0000 (-0800)
Subject: sparc64: Handle hugepage TSB being NULL.
X-Git-Tag: v3.9-rc1~140^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bcd896bae0166b4443503482a26ecf84d9ba60ab;p=pandora-kernel.git

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>
---

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