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Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1rme4f-00000002U30-1V6O; Tue, 19 Mar 2024 18:20:33 +0000 Date: Tue, 19 Mar 2024 18:20:33 +0000 From: Matthew Wilcox To: Gregory Price Cc: Gregory Price , linux-mm@kvack.org, linux-api@vger.kernel.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, ying.huang@intel.com, dan.j.williams@intel.com, honggyu.kim@sk.com, corbet@lwn.net, arnd@arndb.de, luto@kernel.org, akpm@linux-foundation.org, shuah@kernel.org Subject: Re: [RFC v3 3/3] ktest: sys_move_phys_pages ktest Message-ID: References: <20240319172609.332900-1-gregory.price@memverge.com> <20240319172609.332900-4-gregory.price@memverge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 793361C000E X-Stat-Signature: kuh4udpz69ofmx5whstuni7ofk1416pz X-HE-Tag: 1710872437-856054 X-HE-Meta: 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 kAHVsK6Z BOux8Q5eckil7F4ir6n2OJmJD1KJx2SgvNXGep+UbOCjGbO8Ae2Xgqt++WycI3ogrkNo7QPGBUGpR0q9RZnECtAsGdU/1DWJitcb1NcNh6hA7OW0pzucacpkIuCFjpPHPM9Tch8zu7xFqOPRrPs1lj9fG72+goEwmRdss9o2L/608WEkO6zWY/I/7/EheON+IzPtBZcljftsz8sOeSgP0brvpurEDjI0Mu9TLWFqvs0RGgK0cepW9W1wvbQPyFGe9PYFv7fJmPHhzxFk= 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, Mar 19, 2024 at 02:14:33PM -0400, Gregory Price wrote: > On Tue, Mar 19, 2024 at 05:52:46PM +0000, Matthew Wilcox wrote: > > On Tue, Mar 19, 2024 at 01:26:09PM -0400, Gregory Price wrote: > > > Implement simple ktest that looks up the physical address via > > > /proc/self/pagemap and migrates the page based on that information. > > > > What? LOL. No. > > > > Certainly the test is stupid and requires admin, but I could not > come up an easier test to demonstrate the concept - and the docs > say to include a test with all syscall proposals. > > Am I missing something else important? > (stupid question: of course I am, but alas I must ask it) It's not that the test is stupid. It's the concept that's stupid.