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Date: Sat, 27 Oct 2007 18:24:10 -0400 (EDT) From: Alan Stern <stern@...land.harvard.edu> To: Maxim Levitsky <maximlevitsky@...il.com> cc: linux-kernel@...r.kernel.org, <netdev@...r.kernel.org>, <linux-pm@...ts.linux-foundation.org> Subject: Re: [linux-pm] QUESTION: How to fix race between .suspend routine and watchdog timer On Sat, 27 Oct 2007, Maxim Levitsky wrote: > > Use del_timer_sync(). It guarantees that when it returns, the timer > > will be stopped and the timer routine will no longer be running on any > > CPU. > > > Even if the timer re-enables itself, are you sure? Last time I looked at the source code, that's what it did. I'll look again... Yep, it still does. It checks to see if the timer routine is currently running; if so then it waits a little while and tries again. Alan Stern - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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