From: Oleg Nesterov <oleg@redhat.com>
Date: Sat, 19 Apr 2014 12:03:05 +0000 (+0200)
Subject: uprobes/x86: Add is_64bit_mm(), kill validate_insn_bits()
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~34^2~14^2~1^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ae1f49ae1978fedb6ad607e1f8b084aa9752f95;p=pandora-kernel.git

uprobes/x86: Add is_64bit_mm(), kill validate_insn_bits()

1. Extract the ->ia32_compat check from 64bit validate_insn_bits()
   into the new helper, is_64bit_mm(), it will have more users.

   TODO: this checks is actually wrong if mm owner is X32 task,
   we need another fix which changes set_personality_ia32().

   TODO: even worse, the whole 64-or-32-bit logic is very broken
   and the fix is not simple, we need the nontrivial changes in
   the core uprobes code.

2. Kill validate_insn_bits() and change its single caller to use
   uprobe_init_insn(is_64bit_mm(mm).

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Jim Keniston <jkenisto@us.ibm.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---

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