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Shutemov" , Mike Kravetz , John Hubbard , Michael Ellerman , Andrew Jones , Muchun Song , linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, Christophe Leroy , Andrew Morton , Christoph Hellwig , Lorenzo Stoakes , Matthew Wilcox , Rik van Riel , linux-arm-kernel@lists.infradead.org, Andrea Arcangeli , "Aneesh Kumar K . V" , Vlastimil Babka , James Houghton , Jason Gunthorpe , Mike Rapoport , Axel Rasmussen Subject: Re: [PATCH v4 13/13] mm/gup: Handle hugetlb in the generic follow_page_mask code Message-ID: References: <20240327152332.950956-1-peterx@redhat.com> <20240327152332.950956-14-peterx@redhat.com> <5d9dd9a7-e544-4741-944c-469b79c2c649@redhat.com> MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: DE8E61C000A X-Stat-Signature: rr7pc7or45q5rdinaf1e7wcq3xhqk9pa X-HE-Tag: 1712080702-592898 X-HE-Meta: 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 jq70rlLl rr5CRVmjxHuo4u6a03ftONgE4OkJotDyKKeI7fg+IQ2u1ld/cErRKrjyWuTfiEH0VvHfNQKaCdNc3AM2+5O5h3Sfh6wsXt81FvYU+L+ZfnUGvUcecJKZ4KJenfxAfAzPF1QtYCX0TVij/BurLL85rDW5brlqE2RB7LF/I0vW35jE2ZRb0uMRtO7n7w6xeCG2M26YXud0UwSyvJ0eEnEBUjNrU8wFUlALD7TgUZ4nedRRyKCJluMAgvlbVCXhNXq6si8w+Lw2RVfsQh1u7jTKjPGH4wWYVQJsDUN2ClxKy90AdiELj/LIlktGXr9ISabed4uHyxU3rtQUVyaAUsWnJXVWjmB65rfzcUbY4VvRXIRBoFaxSLXB9IpDZIzlcevKmn84O1mQbtgYaOLnXXLTTtRy7eRw01qduWDat 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 Tue, Apr 02, 2024 at 05:46:57PM +0100, Ryan Roberts wrote: > I'll leave you to do the testing on this, if that's ok. Definitely. I'll test and send formal patches. > > Just to make my config explicit, I have this kernel command line, which reserves > hugetlbs of all sizes for the tests: > > "transparent_hugepage=madvise earlycon root=/dev/vda2 secretmem.enable > hugepagesz=1G hugepages=0:2,1:2 hugepagesz=32M hugepages=0:2,1:2 > default_hugepagesz=2M hugepages=0:64,1:64 hugepagesz=64K hugepages=0:2,1:2" This helps, thanks. -- Peter Xu