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Wong" To: Christoph Hellwig Cc: Jens Axboe , Matthew Wilcox , Ilya Dryomov , Andrew Morton , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org Subject: Re: add and use a per-mapping stable writes flag v2 Message-ID: <20231108162525.GT1205143@frogsfrogsfrogs> References: <20231025141020.192413-1-hch@lst.de> <20231108080518.GA6374@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231108080518.GA6374@lst.de> X-Rspam-User: X-Stat-Signature: 5h7dzyc69cm3totqwwysdt6ssmdqhemz X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: D14324002A X-HE-Tag: 1699460730-415903 X-HE-Meta: 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 c7eIshoE tBZTF6BE2BHIe9dFL8DlzTv+B1gq6moir3IhxDxuKiTdZz5HnluziSu9LKunaVqlRLNMxOkcs7Hor5PrNAylgz4KrWyVlCfbOfNrs0qIfo6OGTMmYQhwh4OU63bkeFRp1eW21puHurSAaixPnMVsohotgGBSQamMtw8ZW7sjIlGXwBIerjnWOTWXF5A== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Nov 08, 2023 at 09:05:18AM +0100, Christoph Hellwig wrote: > Can we get at least patches 1 and 2 queued for for 6.7 given that > they fix a regression? I would say that all four should go in 6.7 because patches 3-4 fix wrong behavior if the rtdev needs stablewrites but the datadev does not. There probably aren't many users of a RHEL-disabled feature atop specialty hardware, but IIRC it's still a data corruption vector. (says me who blew up his last T10 PI drive last week :() --D