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Thu, 12 Aug 2021 17:29:35 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id bcjkNn9aFWE3EAAAGKfGzw (envelope-from ); Thu, 12 Aug 2021 17:29:35 +0000 Subject: Re: [PATCH v14 085/138] mm/filemap: Add filemap_alloc_folio To: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig References: <20210715033704.692967-1-willy@infradead.org> <20210715033704.692967-86-willy@infradead.org> From: Vlastimil Babka Message-ID: <6191eee3-5c2b-f866-7943-1c0867b1d068@suse.cz> Date: Thu, 12 Aug 2021 19:29:35 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210715033704.692967-86-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=n1acCdxO; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=DfHYBGA6; spf=pass (imf10.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.29 as permitted sender) smtp.mailfrom=vbabka@suse.cz; dmarc=none X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 25E886016009 X-Stat-Signature: fbqcjjzsi3r7udp1197n7hodg9iraqwj X-HE-Tag: 1628789377-343018 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 7/15/21 5:36 AM, Matthew Wilcox (Oracle) wrote: > Reimplement __page_cache_alloc as a wrapper around filemap_alloc_folio > to allow filesystems to be converted at our leisure. Increases > kernel text size by 133 bytes, mostly in cachefiles_read_backing_file(). > pagecache_get_page() shrinks by 32 bytes, though. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Christoph Hellwig Acked-by: Vlastimil Babka