From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Date: Fri, 10 Dec 2004 00:28:01 +0000 Subject: Re: [patch 2.6.10-rc3] Add TIF_SIGDELAYED processing Message-Id: <200412091628.01643.jbarnes@engr.sgi.com> List-Id: References: <15449.1102482344@kao1.melbourne.sgi.com> In-Reply-To: <15449.1102482344@kao1.melbourne.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org On Thursday, December 9, 2004 3:22 pm, David Mosberger wrote: > >>>>> On Thu, 9 Dec 2004 15:19:07 -0800, "Luck, Tony" > >>>>> said: > >> > >> I just think stashing away pids in the kernel is a slippery slope > >> we do not want to get onto. > >> > >> Can't you stash away a reference to the task-structure and bump > >> the reference count? > > Tony> Can we do that in MCA context (without getting any locks)? > > I'd think you'd have to get the reference much earlier than that, > namely at the time you map the MMIO region. Yeah, that's a good idea. I'll try that when I port the recovery stuff to Keith's new code and add a comment saying that the recovery agent is responsible for increasing the task usage count. Jesse