From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 4 Nov 2013 19:27:13 +0000 (+0100)
Subject: uprobes: Introduce arch_uprobe->ixol
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~41^2~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a8de66c4f6ebd0f6d3da026ec24339aa5d1db12;p=pandora-kernel.git

uprobes: Introduce arch_uprobe->ixol

Currently xol_get_insn_slot() assumes that we should simply copy
arch_uprobe->insn[] which is (ignoring arch_uprobe_analyze_insn)
just the copy of the original insn.

This is not true for arm which needs to create another insn to
execute it out-of-line.

So this patch simply adds the new member, ->ixol into the union.
This doesn't make any difference for x86 and powerpc, but arm
can divorce insn/ixol and initialize the correct xol insn in
arch_uprobe_analyze_insn().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
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