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Date: Mon, 15 Jan 2018 09:54:16 +0100 From: Christoph Hellwig <hch@....de> To: Jeff Moyer <jmoyer@...hat.com> Cc: Christoph Hellwig <hch@....de>, viro@...iv.linux.org.uk, Avi Kivity <avi@...lladb.com>, linux-aio@...ck.org, linux-fsdevel@...r.kernel.org, netdev@...r.kernel.org, linux-api@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 30/32] aio: add delayed cancel support On Thu, Jan 11, 2018 at 10:27:05AM -0500, Jeff Moyer wrote: > Duh, good point. My main concern is that things like usb gadget will > have to deal with races between cancellation and completion on their > own. It would be nice if we had infrastructure for them to use. I'll > have a look through that code to see if there's something we could or > should be doing. The current cancel interface is a bit of a mess, as it assumes the kiocb is embedded into an aio_kiocb. I think it would need a major rework in general, but I'll need to fix a couple other aio issues first.
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