tree 8dada42c1c58e9450161e88e67d304c68917f3a8
parent 292f86f005e3867277b2126c2399eea3e773a4fc
author Gui,Jian <guij@cn.ibm.com> 1162349415 +0800
committer Paul Mackerras <paulus@samba.org> 1162354452 +1100

[POWERPC] Disallow kprobes on emulate_step and branch_taken

On powerpc, probing on emulate_step function will crash 2.6.18.1 when
it is triggered.

When kprobe is triggered, emulate_step() is on its kernel path and
will cause recursive kprobe fault.  And branch_taken() is called
in emulate_step().  This disallows kprobes on both of them.

Signed-off-by: Paul Mackerras <paulus@samba.org>