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Howlett" , James Houghton , Mike Rapoport , Lorenzo Stoakes , Axel Rasmussen Subject: Re: [PATCH 1/4] mm: Introduce vm_uffd_ops API Message-ID: References: <20250620190342.1780170-1-peterx@redhat.com> <20250620190342.1780170-2-peterx@redhat.com> <1e6fcebf-f74e-46ad-912b-d7df13527aea@redhat.com> <0126fa5f-b5aa-4a17-80d6-d428105e45c7@redhat.com> <471e95bc-ea2d-4c37-aad6-0062b4457054@redhat.com> MIME-Version: 1.0 In-Reply-To: <471e95bc-ea2d-4c37-aad6-0062b4457054@redhat.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: HtioFbXmAztR7AUt81QCFZn-swIb0uB9bshjyU3jGds_1750701389 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Stat-Signature: ewpxrioxmcxw9usghsfezdadnuty6e63 X-Rspamd-Queue-Id: 8686D18000A X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1750701391-887202 X-HE-Meta: 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 1v1w7dq/ B4f9Nw1Dp2ZgGhBuxXGaYqD8S/ofAsArH0k6r5slLhTBBKsolCtmQrJ45rCcJslTL8c4cqzuAYuKtQJ/yPEbaoqGOAUYRAWpinwWYEg5p2K0LY6EMJ09APJI1CY+O44yUfp0gCTU80Hs51ceXaJTHW0HGvJTCeXFDDOM5e3LqFV7gRHwFSWEolUYiUgDDxpSzpBmItn5Q2LCgU8dodI76OAaDeMuS95YK+mgF39FQRL7y7s+IvgmZ0Wr3BWnv2iVAmI4lMJWiEFdyZ5RGt3FYKEGMH9irjp0c2s5iR1NDDW4gGN/BcFH/fTTYknT8Z4umTOcuyZnmE4EQtoDravtvXblH+Md/jQLEg8LroQfWNbVNPJ9I25mxxfElu516bivDYIt0b9tDrIZwzppypt5F5HWE8Tui7Y1kl35MClf3bN5XEBV5hira7CbpKUmnePVGakm7Vi/CXhnMy6U= 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 Mon, Jun 23, 2025 at 07:25:11PM +0200, David Hildenbrand wrote: > Oh, yes, agreed on WP_ASYNC. But they would not be using the vma_ops thingy, > right? Yes, currently WP_ASYNC bypassed that. So if something declares WP in the uffd_features in the new API it'll be only for sync (and it really should almost start working for most files too like what async did..). -- Peter Xu