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Received: from viro by zeniv.linux.org.uk with local (Exim 4.96 #2 (Red Hat Linux)) id 1paTpJ-00FCqC-1Z; Fri, 10 Mar 2023 03:53:53 +0000 Date: Fri, 10 Mar 2023 03:53:53 +0000 From: Al Viro To: Christoph Hellwig Cc: Andrew Morton , Mark Fasheh , Joel Becker , Joseph Qi , Evgeniy Dushistov , "Matthew Wilcox (Oracle)" , ocfs2-devel@oss.oracle.com, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 1/3] ufs: don't flush page immediately for DIRSYNC directories Message-ID: <20230310035353.GM3390869@ZenIV> References: <20230307143125.27778-1-hch@lst.de> <20230307143125.27778-2-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230307143125.27778-2-hch@lst.de> X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 0CE79C0003 X-Rspam-User: X-Stat-Signature: 5x6bb7s6xsrh36pfjqy8gc7a5f1b6u8e X-HE-Tag: 1678420442-130855 X-HE-Meta: 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 KT3j9A+w KOfZI55mNGosE+hKpS2Ii7MDa9+SQNgFlW6evjy5D+IYS3Dzys4fjjLrLIwC2Y+67rhS24l1Tpptni8PcsY+sz3yzVLqQo96k0i/9YRNK7/COrT+7j89PfXaJlnEOF0y/MHg9arU2z1rQTi66Hf+GLqPsbN5+yYBRIQfw/ZByFXRZNmtjjMiyjRmj+VsDt+U1BEc9n6IUqgDtW4MDbQZ4ie1wcwSrH6bEBSV6lvRtSxH7tfxRzuNdHu6AOdDNHM0if0CNnQZtG9kWC4MaIbZM5x/3RQDSI3n0EYG2oahnoPuMJ7BpR1FEOvwFUHxmpTS1dY+oXjYKd+EOJTM= 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 Tue, Mar 07, 2023 at 03:31:23PM +0100, Christoph Hellwig wrote: > We do not need to writeout modified directory blocks immediately when > modifying them while the page is locked. It is enough to do the flush > somewhat later which has the added benefit that inode times can be > flushed as well. It also allows us to stop depending on > write_one_page() function. > > Ported from an ext2 patch by Jan Kara. Umm... I'll throw it in ufs pile, I guess (tomorrow - I'll need to sort out Fabio's patches in the area as well; IIRC, the latest had been in late December).