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Thu, 12 Aug 2021 16:24:41 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id 7X+TG0lLFWHEAQAAGKfGzw (envelope-from ); Thu, 12 Aug 2021 16:24:41 +0000 Subject: Re: [PATCH v14 074/138] mm/writeback: Add folio_clear_dirty_for_io() 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> <20210715033704.692967-75-willy@infradead.org> From: Vlastimil Babka Message-ID: <24a7db9a-0c61-44ec-3ffe-bd6462316a9a@suse.cz> Date: Thu, 12 Aug 2021 18:24:41 +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: <20210715033704.692967-75-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=MtGuQnGV; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=zt8ZO1+I; spf=pass (imf08.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: 90DB83008BE1 X-Stat-Signature: ef8yxyj3ei9t6mp6z9x13aaemordqn9b X-HE-Tag: 1628785482-941505 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: > Transform clear_page_dirty_for_io() into folio_clear_dirty_for_io() > and add a compatibility wrapper. Also move the declaration to pagemap.h > as this is page cache functionality that doesn't need to be used by the > rest of the kernel. > > Increases the size of the kernel by 79 bytes. While we remove a few > calls to compound_head(), we add a call to folio_nr_pages() to get the > stats correct for the eventual support of multi-page folios. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Christoph Hellwig Acked-by: Vlastimil Babka