linux-kernel - Re: [PATCH 3/5] coredump: cleanup the waiting for coredump

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20130215153059.8ac35241.akpm@linux-foundation.org>
Date:	Fri, 15 Feb 2013 15:30:59 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Mandeep Singh Baines <msb@...omium.org>
Cc:	linux-kernel@...r.kernel.org, Oleg Nesterov <oleg@...hat.com>,
	Tejun Heo <tj@...nel.org>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH 3/5] coredump: cleanup the waiting for coredump_finish
 code

On Thu, 14 Feb 2013 15:38:14 -0800
Mandeep Singh Baines <msb@...omium.org> wrote:

> Replace the for loop with a simple if.

Well OK, but why?  Presumably the loop was added for a reason and
presumably you believe that reason to be (no longer?) correct.  Please
describe all these things.

> --- a/kernel/exit.c
> +++ b/kernel/exit.c
> @@ -479,12 +479,9 @@ static void exit_mm(struct task_struct * tsk)
>  		if (atomic_dec_and_test(&core_state->nr_threads))
>  			complete(&core_state->startup);
>  
> -		for (;;) {
> -			set_task_state(tsk, TASK_UNINTERRUPTIBLE);
> -			if (!self.task) /* see coredump_finish() */
> -				break;
> +		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
> +		if (self.task) /* see coredump_finish() */
>  			schedule();
> -		}


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/