Re: [PATCH v4 08/12] ptrace: Document that wait_task_inactive can't fail
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- To: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
- Subject: Re: [PATCH v4 08/12] ptrace: Document that wait_task_inactive can't fail
- From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
- Date: Fri, 6 May 2022 08:55:24 +0200
- Cc: linux-kernel@xxxxxxxxxxxxxxx, rjw@xxxxxxxxxxxxx, Oleg Nesterov <oleg@xxxxxxxxxx>, mingo@xxxxxxxxxx, vincent.guittot@xxxxxxxxxx, dietmar.eggemann@xxxxxxx, rostedt@xxxxxxxxxxx, mgorman@xxxxxxx, Will Deacon <will@xxxxxxxxxx>, tj@xxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>, Johannes Berg <johannes@xxxxxxxxxxxxxxxx>, linux-um@xxxxxxxxxxxxxxxxxxx, Chris Zankel <chris@xxxxxxxxxx>, Max Filippov <jcmvbkbc@xxxxxxxxx>, linux-xtensa@xxxxxxxxxxxxxxxx, Kees Cook <keescook@xxxxxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx
- In-reply-to: <20220505182645.497868-8-ebiederm@xmission.com>
- References: <87a6bv6dl6.fsf_-_@email.froward.int.ebiederm.org> <20220505182645.497868-8-ebiederm@xmission.com>
On 2022-05-05 13:26:41 [-0500], Eric W. Biederman wrote:
> After ptrace_freeze_traced succeeds it is known that the the tracee
the
> has a __state value of __TASK_TRACED and that no __ptrace_unlink will
> happen because the tracer is waiting for the tracee, and the tracee is
> in ptrace_stop.
Sebastian
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