From: Wang Nan <wangnan0@huawei.com>
Date: Fri, 13 Feb 2015 22:40:24 +0000 (-0800)
Subject: kprobes: set kprobes_all_disarmed earlier to enable re-optimization.
X-Git-Tag: fixes-v4.0-rc1~107^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=977ad481b66ca91e1f6492b3c5c4748c68fdee9c;p=pandora-kernel.git

kprobes: set kprobes_all_disarmed earlier to enable re-optimization.

In original code, the probed instruction doesn't get optimized after

echo 0 > /sys/kernel/debug/kprobes/enabled
echo 1 > /sys/kernel/debug/kprobes/enabled

This is because original code checks kprobes_all_disarmed in
optimize_kprobe(), but this flag is turned off after calling that
function.  Therefore, optimize_kprobe() will see kprobes_all_disarmed ==
true and doesn't do the optimization.

This patch simply turns off kprobes_all_disarmed earlier to enable
optimization.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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