linux-kernel - Re: [PATCH] vt: Make vt_pid a struct pid (making it pid wrap around safe).

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Date:	Sun, 10 Sep 2006 23:28:09 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Oleg Nesterov <oleg@...sign.ru>
Cc:	Andrew Morton <akpm@...l.org>,
	Linux Containers <containers@...ts.osdl.org>,
	linux-kernel@...r.kernel.org, Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH] vt: Make vt_pid a struct pid (making it pid wrap around safe).

Grr.  Here is the other half of my confusion.

The patch:
[PATCH] vt: Rework the console spawning variables.
is fine.

The patch:
[PATCH] vt: Make vt_pid a struct pid (making it pid wrap around safe).
which uses xchg() is racy, and needs to be fixed.

Oleg could you confirm that quick analysis.

Thanks,
Eric
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