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Date: Tue, 19 Apr 2011 23:02:43 -0400
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From: Ryan Stone <rysto32@gmail.com>
To: David Xu <davidxu@freebsd.org>
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Cc: FreeBSD Current <freebsd-current@freebsd.org>,
	Ed Maste <emaste@freebsd.org>
Subject: Re: [PATCH] Call _thr_check_init() from _pthread_once
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On Tue, Apr 19, 2011 at 10:58 PM, David Xu <davidxu@freebsd.org> wrote:
>
> But I don't touch curthread unless it is blocked by another thread.
>

You do a THR_CLEANUP_PUSH(curthread, once_cancel_handler,
once_control); before calling *init_routine.  THR_CLEANUP_PUSH touches
curthread->cleanup;