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dkim=pass header.d=fb.com header.s=facebook header.b=QqLnI2T+; spf=none (imf23.hostedemail.com: domain of "prvs=6117a43d61=shr@fb.com" has no SPF policy when checking 67.231.153.30) smtp.mailfrom="prvs=6117a43d61=shr@fb.com"; dmarc=pass (policy=reject) header.from=fb.com X-HE-Tag: 1651175672-579034 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: On 4/26/22 12:06 PM, Matthew Wilcox wrote: > On Tue, Apr 26, 2022 at 10:43:19AM -0700, Stefan Roesch wrote: >> Define FGP_ATOMIC flag and add support for the new flag in the function >> __filemap_get_folio(). > > No. You don't get to use the emergency memory pools for doing writes. > That completely screws up the MM. The next version of the patch will remove this patch from the patch series and the need of the atomic flag.