From: David S. Miller <davem@davemloft.net>
Date: Tue, 29 Apr 2014 06:52:11 +0000 (-0700)
Subject: sparc64: Fix top-level fault handling bugs.
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~211^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=70ffc6ebaead783ac8dafb1e87df0039bb043596;p=pandora-kernel.git

sparc64: Fix top-level fault handling bugs.

Make get_user_insn() able to cope with huge PMDs.

Next, make do_fault_siginfo() more robust when get_user_insn() can't
actually fetch the instruction.  In particular, use the MMU announced
fault address when that happens, instead of calling
compute_effective_address() and computing garbage.

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