From: Keith Busch <kbusch@kernel.org>
To: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Keith Busch <kbusch@meta.com>,
alex.williamson@redhat.com, kvm@vger.kernel.org,
linux-pci@vger.kernel.org, paulmck@kernel.org
Subject: Re: [PATCHv2] vfio/type1: conditional rescheduling while pinning
Date: Wed, 16 Jul 2025 07:47:04 -0600 [thread overview]
Message-ID: <aHetWNNNGstvIOvB@kbusch-mbp> (raw)
In-Reply-To: <20250716123201.GA2135755@ziepe.ca>
On Wed, Jul 16, 2025 at 09:32:01AM -0300, Jason Gunthorpe wrote:
>
> You should be making a matching change to iommufd too..
Yeah, okay. My colleauge I've been working with on this hasn't yet
reported CPU stalls using iommufd though, so I'm not sure which path
iommufd takes to know where to place cond_resched(). Blindly stumbly
through it, my best guess right now is arriving at the loop in
iopt_fill_domains_pages(), called through iommufd_vfio_map_dma(). Am I
close?
next prev parent reply other threads:[~2025-07-16 13:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-15 18:46 [PATCHv2] vfio/type1: conditional rescheduling while pinning Keith Busch
2025-07-15 23:47 ` Paul E. McKenney
2025-07-16 12:32 ` Jason Gunthorpe
2025-07-16 13:47 ` Keith Busch [this message]
2025-07-16 13:51 ` Jason Gunthorpe
2025-07-16 20:24 ` Alex Williamson
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