From: Wang Nan <wangnan0@huawei.com>
Date: Fri, 13 Feb 2015 22:40:26 +0000 (-0800)
Subject: kprobes: makes kprobes/enabled works correctly for optimized kprobes.
X-Git-Tag: fixes-v4.0-rc1~107^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=69d54b916d83872a0a327778a01af2a096923f59;p=pandora-kernel.git

kprobes: makes kprobes/enabled works correctly for optimized kprobes.

debugfs/kprobes/enabled doesn't work correctly on optimized kprobes.
Masami Hiramatsu has a test report on x86_64 platform:

https://lkml.org/lkml/2015/1/19/274

This patch forces it to unoptimize kprobe if kprobes_all_disarmed is set.
It also checks the flag in unregistering path for skipping unneeded
disarming process when kprobes globally disarmed.

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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