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From: Oleg Nesterov <oleg@redhat.com>
To: "Jürg Billeter" <j@bitron.ch>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Eric Biederman <ebiederm@xmission.com>,
	linux-api@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] prctl: add PR_[GS]ET_KILLABLE
Date: Mon, 30 Jul 2018 12:17:00 +0200	[thread overview]
Message-ID: <20180730101659.GA24781@redhat.com> (raw)
In-Reply-To: <20180730075241.24002-1-j@bitron.ch>

On 07/30, Jürg Billeter wrote:
>
> This is required for job control in a shell that uses CLONE_NEWPID for
> child processes.

Could you explain in more details?

> +	case PR_SET_KILLABLE:
> +		if (arg2 != 1 || arg3 || arg4 || arg5)
> +			return -EINVAL;
> +		me->signal->flags &= ~SIGNAL_UNKILLABLE;

this needs spin_lock_irq(me->sighand->siglock).

Oleg.

  reply	other threads:[~2018-07-30 10:17 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-30  7:52 [PATCH] prctl: add PR_[GS]ET_KILLABLE Jürg Billeter
2018-07-30 10:17 ` Oleg Nesterov [this message]
2018-07-30 19:32   ` Jürg Billeter
2018-07-30 19:39     ` Thomas Gleixner
2018-07-31  7:03 ` [PATCH v2] " Jürg Billeter
2018-07-31 14:39   ` Oleg Nesterov
2018-07-31 16:12     ` Jürg Billeter
2018-08-01 14:19       ` Oleg Nesterov
2018-08-03 10:15         ` Jürg Billeter
2018-08-03 12:14           ` Oleg Nesterov
2018-08-03 13:34           ` Eric W. Biederman
2018-08-03 13:34             ` Eric W. Biederman
2018-08-03 14:39             ` Jürg Billeter
2018-07-31 16:26 ` [PATCH] " Jann Horn
2018-08-01  7:43   ` Jürg Billeter
2018-08-01  7:56     ` Jann Horn
2018-08-03 14:40 ` [PATCH v3 1/2] fork: do not rely on SIGNAL_UNKILLABLE for init check Jürg Billeter
2018-08-03 14:40   ` [PATCH v3 2/2] prctl: add PR_[GS]ET_KILLABLE Jürg Billeter
2018-09-06 22:42     ` Andrew Morton

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