Linux PCI subsystem development
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From: Bjorn Helgaas <helgaas@kernel.org>
To: David Jeffery <djeffery@redhat.com>
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org, driver-core@lists.linux.dev,
	linux-pci@vger.kernel.org, linux-scsi@vger.kernel.org,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	"Danilo Krummrich" <dakr@kernel.org>,
	"Tarun Sahu" <tarunsahu@google.com>,
	"Pasha Tatashin" <tatashin@google.com>,
	"Michał Cłapiński" <mclapinski@google.com>,
	"Jordan Richards" <jordanrichards@google.com>,
	"Ewan Milne" <emilne@redhat.com>,
	"John Meneghini" <jmeneghi@redhat.com>,
	"Lombardi, Maurizio" <mlombard@redhat.com>,
	"Stuart Hayes" <stuart.w.hayes@gmail.com>,
	"Laurence Oberman" <loberman@redhat.com>,
	"Bart Van Assche" <bvanassche@acm.org>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	"John Garry" <john.g.garry@oracle.com>,
	kexec@lists.infradead.org,
	"Pasha Tatashin" <pasha.tatashin@soleen.com>
Subject: Re: [PATCH 4/5] PCI: Enable async shutdown support
Date: Wed, 6 May 2026 16:24:56 -0500	[thread overview]
Message-ID: <20260506212456.GA880761@bhelgaas> (raw)
In-Reply-To: <CA+-xHTFj_J4r2oqG8cPOU_wx7pChjHt9SgyHzKbTD8+KgeSFXw@mail.gmail.com>

On Wed, May 06, 2026 at 05:10:19PM -0400, David Jeffery wrote:
> On Wed, May 6, 2026 at 2:28 PM Bjorn Helgaas <helgaas@kernel.org> wrote:
> > On Wed, Apr 29, 2026 at 01:50:15PM -0400, David Jeffery wrote:
> > > Like its async suspend support, allow PCI device shutdown to be performed
> > > asynchronously to reduce shutdown time.
> > >
> > > Signed-off-by: David Jeffery <djeffery@redhat.com>
> > > Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com>
> > > Tested-by: Laurence Oberman <loberman@redhat.com>
> > > Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
> > > Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
> >
> > Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
> >
> > I'm concerned about tripping over driver issues, but it's a pretty big
> > benefit.  I think it's worth mentioning the "async_shutdown" module
> > parameter somewhere in the commit logs and putting an example in
> > Documentation/admin-guide/kernel-parameters.txt.
> 
> Sure, I can see about adding a document patch to it.
> 
> > Might even consider keeping in -next for a cycle+ and targeting v7.3.
> 
> I would be happy for it to spend as much time in linux-next as needed
> for people to be comfortable with the risk of odd interactions with
> all the pci drivers it will indirectly impact.
> 
> But I must admit my ignorance with some of the details of linux-next.
> Looking at the main code changes, the patchset would seem to want to
> go through driver-core to get to linux-next. But as far as indirect
> impact, it is the diverse collection of devices and drivers under PCI
> which are most affected by the changes. Is there a consensus on how to
> steward a patchset like this one into linux-next?

My guess is it should all go via the driver-core tree, given acks or
reviewed-by from the other subsystems it touches.

  reply	other threads:[~2026-05-06 21:24 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-29 17:50 [PATCH v15 0/5] shut down devices asynchronously David Jeffery
2026-04-29 17:50 ` [PATCH 1/5] driver core: separate function to shutdown one device David Jeffery
2026-04-29 17:50 ` [PATCH 2/5] driver core: do not always lock parent in shutdown David Jeffery
2026-04-29 17:50 ` [PATCH 3/5] driver core: async device shutdown infrastructure David Jeffery
2026-04-29 17:50 ` [PATCH 4/5] PCI: Enable async shutdown support David Jeffery
2026-05-06 18:28   ` Bjorn Helgaas
2026-05-06 21:10     ` David Jeffery
2026-05-06 21:24       ` Bjorn Helgaas [this message]
2026-04-29 17:50 ` [PATCH 5/5] scsi: " David Jeffery
  -- strict thread matches above, loose matches on Subject: below --
2026-04-20 15:26 [PATCH v14 0/5] shut down devices asynchronously David Jeffery
2026-04-20 15:26 ` [PATCH 4/5] PCI: Enable async shutdown support David Jeffery
2026-04-07 15:35 [PATCH v13 0/5] shut down devices asynchronously David Jeffery
2026-04-07 15:35 ` [PATCH 4/5] PCI: Enable async shutdown support David Jeffery
2026-03-19 14:11 [PATCH v12 0/5] shut down devices asynchronously David Jeffery
2026-03-19 14:11 ` [PATCH 4/5] PCI: enable async shutdown support David Jeffery
2026-03-11 17:12 [PATCH 1/5] driver core: do not always lock parent in shutdown David Jeffery
2026-03-11 17:12 ` [PATCH 4/5] pci: enable async shutdown support David Jeffery
2026-03-11 23:08   ` Bjorn Helgaas
2026-03-12 13:46     ` David Jeffery
2026-03-12  5:09   ` Greg Kroah-Hartman
2026-03-12 13:54     ` David Jeffery

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