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[34.127.87.210]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39642524ffesm371897a91.2.2026.08.24.13.08.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2026 13:08:00 -0700 (PDT) Date: Mon, 24 Aug 2026 20:07:57 +0000 From: Samiullah Khawaja To: David Matlack Cc: kexec@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-pci@vger.kernel.org, Adithya Jayachandran , Alexander Graf , Alex Williamson , Bjorn Helgaas , Chris Li , David Rientjes , Jacob Pan , Jason Gunthorpe , Jonathan Corbet , Josh Hilke , Leon Romanovsky , Lukas Wunner , Mike Rapoport , Parav Pandit , Pasha Tatashin , Pranjal Shrivastava , Pratyush Yadav , Saeed Mahameed , Shuah Khan , Vipin Sharma , William Tu , Yi Liu Subject: Re: [PATCH v8 10/12] PCI: liveupdate: Freeze preservation status during shutdown Message-ID: References: <20260728221007.2098560-1-dmatlack@google.com> <20260728221007.2098560-11-dmatlack@google.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20260728221007.2098560-11-dmatlack@google.com> On Tue, Jul 28, 2026 at 10:10:04PM +0000, David Matlack wrote: >Freeze a device's outgoing preservation status (preserved or not >preserved) during shutdown. This enables the PCI core and drivers to >safely make decisions based on the device's preservation status during >shutdown. > >Note that pci_liveupdate_freeze() is triggered by the PCI core rather >than from drivers participating in Live Update so that all devices can >have their status frozen (i.e. prevent non-preserved devices from >getting preserved late). > >Reviewed-by: Pranjal Shrivastava >Reviewed-by: Pasha Tatashin >Signed-off-by: David Matlack >--- > drivers/pci/liveupdate.c | 16 ++++++++++++++++ > drivers/pci/liveupdate.h | 4 ++++ > drivers/pci/pci-driver.c | 2 ++ > include/linux/pci_liveupdate.h | 3 +++ > 4 files changed, 25 insertions(+) > Reviewed-by: Samiullah Khawaja