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Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qxCcr-00Hb5n-SL; Sun, 29 Oct 2023 20:43:13 +0000 Date: Sun, 29 Oct 2023 20:43:13 +0000 From: Matthew Wilcox To: Daniel Gomez Cc: "minchan@kernel.org" , "senozhatsky@chromium.org" , "axboe@kernel.dk" , "djwong@kernel.org" , "hughd@google.com" , "akpm@linux-foundation.org" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" , "gost.dev@samsung.com" , Pankaj Raghav Subject: Re: [RFC PATCH 00/11] shmem: high order folios support in write path Message-ID: References: <20230919135536.2165715-1-da.gomez@samsung.com> <20231028211518.3424020-1-da.gomez@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231028211518.3424020-1-da.gomez@samsung.com> X-Stat-Signature: 4hf3rs1jatp5kbqotocqz3pk5dfzqfb5 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 1056F40009 X-Rspam-User: X-HE-Tag: 1698612201-452515 X-HE-Meta: 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 1YpjXKAZ D070kfnyyWw2kJiRzAbsbFZTU4OPKgiM8xkJIJc88kU5U4ElsVLKj72sCtNFSjLuTFcM9JFlToR93BTuW/w3KLGmVGePNsFbEL3UQYZFuNw1TeFsDZqkeilclG4lKX0MPJ2ffMDNUke0WIrHdVBfdx+09OU4wX40HDjmY4GwAqUc9z71Cjud1jGRJWg== 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 Sat, Oct 28, 2023 at 09:15:34PM +0000, Daniel Gomez wrote: > This series try to add support for high order folios in shmem write and > fallocate paths when swap is disabled (noswap option). This is part of the > Large Block Size (LBS) effort [1][2] and a continuation of the shmem work from > Luis here [3] following Matthew Wilcox's suggestion [4] regarding the path to > take for the folio allocation order calculation. I don't see how this is part of the LBS effort. shmem doesn't use a block device. swap might, but that's a separate problem, as you've pointed out.