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[73.219.103.14]) by smtp.gmail.com with ESMTPSA id i25sm8253285qka.38.2021.04.02.17.31.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Apr 2021 17:31:56 -0700 (PDT) Date: Fri, 2 Apr 2021 20:31:51 -0400 From: Kent Overstreet To: "Matthew Wilcox (Oracle)" Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-cachefs@redhat.com, linux-afs@lists.infradead.org Subject: Re: [PATCH v6 00/27] Memory Folios Message-ID: References: <20210331184728.1188084-1-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210331184728.1188084-1-willy@infradead.org> X-Stat-Signature: 5rgixm9boetetu8bwxzqghmm3ir7fkd7 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 36D9240002C3 Received-SPF: none (gmail.com>: No applicable sender policy available) receiver=imf17; identity=mailfrom; envelope-from=""; helo=mail-qk1-f180.google.com; client-ip=209.85.222.180 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1617409916-545903 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: On Wed, Mar 31, 2021 at 07:47:01PM +0100, Matthew Wilcox (Oracle) wrote: > The medium-term goal is to convert all filesystems and some device > drivers to work in terms of folios. This series contains a lot of > explicit conversions, but it's important to realise it's removing a lot > of implicit conversions in some relatively hot paths. There will be very > few conversions from folios when this work is completed; filesystems, > the page cache, the LRU and so on will generally only deal with folios. I'm pretty excited for this to land - 4k page overhead has been a pain point for me for quite some time. I know this is going to be a lot of churn but I think leveraging the type system is exactly the right way to go about this, and I can't wait to start converting bcachefs.