From: Wang Nan <wangnan0@huawei.com>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: <tixy@linaro.org>, <linux@arm.linux.org.uk>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <lizefan@huawei.com>
Subject: Re: [PATCH] kprobes: bugfix: checks kprobes_all_disarmed in unoptimized_kprobe().
Date: Mon, 19 Jan 2015 11:04:14 +0800 [thread overview]
Message-ID: <54BC742E.80006@huawei.com> (raw)
In-Reply-To: <54B3C3A0.6010708@hitachi.com>
Hi Masami Hiramatsu,
I can't find this patch and '[PATCH] kprobes: bugfix: checks kprobes_all_disarmed
in unoptimized_kprobe().' in current mainline. How do these patches get there?
Should they be merged into Russell King's tree first?
Thank you!
On 2015/1/12 20:52, Masami Hiramatsu wrote:
> (2015/01/12 21:09), Wang Nan wrote:
>> Original code failed to disarm the probed instruction after
>>
>> echo 0 > /sys/kernel/debug/kprobes/enabled
>>
>> if OPTPROBE is enabled.
>>
>> This patch checks kprobes_all_disarmed in unoptimized_kprobe().
>>
>
> Looks good :)
>
> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
>
> Thank you!
>
>> Signed-off-by: Wang Nan <wangnan0@huawei.com>
>> ---
>> kernel/kprobes.c | 3 +++
>> 1 file changed, 3 insertions(+)
>>
>> diff --git a/kernel/kprobes.c b/kernel/kprobes.c
>> index 9471710..f16936b 100644
>> --- a/kernel/kprobes.c
>> +++ b/kernel/kprobes.c
>> @@ -630,6 +630,9 @@ static void unoptimize_kprobe(struct kprobe *p, bool force)
>> {
>> struct optimized_kprobe *op;
>>
>> + if (kprobes_all_disarmed)
>> + return;
>> +
>> if (!kprobe_aggrprobe(p) || kprobe_disarmed(p))
>> return; /* This is not an optprobe nor optimized */
>>
>>
>
>
next prev parent reply other threads:[~2015-01-19 3:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-05 12:32 [PATCH] kprobes: bugfix: force unoptimize when disable kprobes Wang Nan
2015-01-12 11:42 ` Masami Hiramatsu
2015-01-12 12:09 ` [PATCH] kprobes: bugfix: checks kprobes_all_disarmed in unoptimized_kprobe() Wang Nan
2015-01-12 12:52 ` Masami Hiramatsu
2015-01-19 3:04 ` Wang Nan [this message]
2015-01-19 9:05 ` Masami Hiramatsu
2015-01-19 11:21 ` Wang Nan
2015-01-19 12:45 ` Masami Hiramatsu
2015-01-19 12:59 ` Wang Nan
2015-01-20 2:51 ` [PATCH] kprobes: bugfix: makes kprobes/enabled works correctly for optimized kprobes Wang Nan
2015-01-20 7:12 ` Masami Hiramatsu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=54BC742E.80006@huawei.com \
--to=wangnan0@huawei.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=lizefan@huawei.com \
--cc=masami.hiramatsu.pt@hitachi.com \
--cc=tixy@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox