From: Christoph Hellwig <hch@infradead.org>
To: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Christoph Hellwig <hch@infradead.org>,
Martin Oliveira <martin.oliveira@eideticom.com>,
linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Artemy Kovalyov <artemyko@nvidia.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Leon Romanovsky <leon@kernel.org>,
Logan Gunthorpe <logang@deltatee.com>,
Michael Guralnik <michaelgur@nvidia.com>,
Mike Marciniszyn <mike.marciniszyn@intel.com>,
Shiraz Saleem <shiraz.saleem@intel.com>,
Tejun Heo <tj@kernel.org>, John Hubbard <jhubbard@nvidia.com>,
Dan Williams <dan.j.williams@intel.com>,
David Sloan <david.sloan@eideticom.com>
Subject: Re: [PATCH v5 3/4] mm/gup: allow FOLL_LONGTERM & FOLL_PCI_P2PDMA
Date: Tue, 13 Aug 2024 21:26:55 -0700 [thread overview]
Message-ID: <ZrwyD10ejPxowETN@infradead.org> (raw)
In-Reply-To: <20240813160502.GH1985367@ziepe.ca>
On Tue, Aug 13, 2024 at 01:05:02PM -0300, Jason Gunthorpe wrote:
> > Where do we block driver unbind with an open resource?
>
> I keep seeing it in different subsystems, safe driver unbind is really
> hard. :\ eg I think VFIO has some waits in it
Well, waits for what? Usuaully an unbind has to wait for something,
but waiting for unbound references is always a bug. And I can't
think of any sensible subsystem doing this.
next prev parent reply other threads:[~2024-08-14 4:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-08 18:33 [PATCH v5 0/4] Enable P2PDMA in Userspace RDMA Martin Oliveira
2024-08-08 18:33 ` [PATCH v5 1/4] kernfs: add a WARN_ON_ONCE if ->close is set Martin Oliveira
2024-08-09 5:37 ` Greg Kroah-Hartman
2024-08-09 15:41 ` Martin Oliveira
2024-08-11 8:31 ` Greg Kroah-Hartman
2024-08-12 6:38 ` Christoph Hellwig
2024-08-12 6:38 ` Christoph Hellwig
2024-08-08 18:33 ` [PATCH v5 2/4] kernfs: remove page_mkwrite() from vm_operations_struct Martin Oliveira
2024-08-12 6:38 ` Christoph Hellwig
2024-08-08 18:33 ` [PATCH v5 3/4] mm/gup: allow FOLL_LONGTERM & FOLL_PCI_P2PDMA Martin Oliveira
2024-08-12 6:39 ` Christoph Hellwig
2024-08-12 23:12 ` Jason Gunthorpe
2024-08-13 5:41 ` Christoph Hellwig
2024-08-13 16:05 ` Jason Gunthorpe
2024-08-13 17:03 ` Dan Williams
2024-08-14 0:02 ` Jason Gunthorpe
2024-08-14 4:26 ` Christoph Hellwig [this message]
2024-08-15 16:38 ` Jason Gunthorpe
2024-08-08 18:33 ` [PATCH v5 4/4] RDMA/umem: add support for P2P RDMA Martin Oliveira
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