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Wong" To: Alison Schofield Cc: David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, nvdimm@lists.linux.dev, Alexander Viro , Christian Brauner , Jan Kara , Dan Williams , Matthew Wilcox , Andrew Morton , Alistair Popple , Christoph Hellwig Subject: Re: [PATCH v1] fs/dax: fix folio splitting issue by resetting old folio order + _nr_pages Message-ID: <20250417034406.GF25659@frogsfrogsfrogs> References: <20250410091020.119116-1-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: E73D412000F X-Rspam-User: X-Rspamd-Server: rspam07 X-Stat-Signature: pxa59m77rxc6ez87nrw1hua74asfguey X-HE-Tag: 1744861448-565652 X-HE-Meta: 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 zuXcSdCe fro3/HxhOEUdMJvuKk+F6KFuGQygHOEfhocdPy+EiiQRsdZuEGHsPytyXEKXOU2Env9C4Fxs1DNG74k6AVfJaTk1COSJwiMYEV1I+UTGJiRNY79rhku/JMiDzBgDtHDaUswT2JS//Hy+EnpRNQ/uo2kxSE/IZOEhzVBj1sLutkedBvL6xdYT5yFwkxjqE5HlPzkfqQDiNd5dxWiEqnWBR/HdYuyRjIQaLaJzUwf6E8BHtlDLm7qACulvU/7vpM3s++iHVj5TrR2Gv+8WvkTfsnm8TSMhxRbQJgOgwAWwnfHbF5djnAEJ9TzIkFEmEid86i07395PCOou5boe3+TOh8aUB+AxSHX1HhlGH 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 Thu, Apr 10, 2025 at 12:12:33PM -0700, Alison Schofield wrote: > On Thu, Apr 10, 2025 at 11:10:20AM +0200, David Hildenbrand wrote: > > Alison reports an issue with fsdax when large extends end up using > > large ZONE_DEVICE folios: > > > > Passes the ndctl/dax unit tests. > > Tested-by: Alison Schofield This fixes the crash I complained about here: https://lore.kernel.org/linux-fsdevel/20250417030143.GO25675@frogsfrogsfrogs/T/ Can we get a fix queued up for -rc3 if it hasn't been already, please? Tested-by: "Darrick J. Wong" --D > > snip > >