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Wong" Cc: "Christoph Lameter (Ampere)" , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, hannes@cmpxchg.org, clm@meta.com, linux-kernel@vger.kernel.org, willy@infradead.org, kirill@shutemov.name, bfoster@redhat.com References: <20241203153232.92224-2-axboe@kernel.dk> <668f271f-dc44-49e1-b8dc-08e65e1fec23@kernel.dk> <36599cce-42ba-ddfb-656f-162548fdb300@gentwo.org> <20241204055241.GA7820@frogsfrogsfrogs> Content-Language: en-US From: Jens Axboe In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 66AD44000C X-Stat-Signature: hgqcqs1ibdoxgibd1qbkwaixsam3xdio X-Rspam-User: X-HE-Tag: 1734018479-337189 X-HE-Meta: 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 e3wVQFx+ UdBHjWXYaKW8LD3WjXS1PihMqgnm4pCzDfprG34pHbUJkqEoeb4WfLJaiuDNDV6P5eVxA1w57B/3tvaABO8o0ySB3FBDdDFiyOuap4Z0n35UwSy2BrNFriN4HP1QM2n7VxaVa8FbZofy32U96PgD/TkbFP0GMJqrsNeUQDFGJHNvSfQ1FU0kjXDRWgxxppG9WBHeH/3YqcGWnGKaOCqST9alzQSxgk0gGelp3MBcZh+illxAaCJklR78DFIlI0DG0gYdClf4UEAQRdrvlszD3Rvu0l9bScCgqaEZduimT0mSKwAgtmXuNK5zd/svw0J7qw3UXRKttMNUVpWrYlfre4KKaiJgU5KGM1ch0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.279650, 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 12/10/24 4:11 AM, Christoph Hellwig wrote: > On Tue, Dec 03, 2024 at 09:52:41PM -0800, Darrick J. Wong wrote: >> RWF_DONTCACHE, to match {I,DCACHE}_DONTCACHE ? ;) >> >> They sound pretty similar ("load this so I can do something with it, >> evict it immediately if possible") though I wouldn't rely on people >> outside the kernel being familiar with the existing dontcaches. > > FYI, another word for dontcache. uncached just has too many conotations > in the kernel context. Sure, we can go with DONTCACHE instead. Only thing I don't like about that is that you can use uncached as a verb and adjective, eg talking about uncached IO. Talking about dontcached IO sounds pretty weird. As I've said previously in this and other threads, I don't feel too strongly about the in-kernel naming, I care more about the exposed name. And uncached does seem to be the most descriptive and most easily understandable by users. -- Jens Axboe