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Wong" , Trond Myklebust , Anna Schumaker , Damien Le Moal , Andrew Morton , linux-block@vger.kernel.org, ceph-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-xfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-mm@kvack.org Subject: cleanup the filemap / direct I/O interaction v3 Date: Wed, 31 May 2023 09:19:58 +0200 Message-Id: <20230531072006.476386-1-hch@lst.de> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: B520A180011 X-Stat-Signature: 6b4y9pcbzmo7ic4qyjb4ob4snydsnkm9 X-Rspam-User: X-HE-Tag: 1685517624-953280 X-HE-Meta: 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 pKOf+eoD VAb3N+fpd4+EPHmUUUvFgo+X25L7GBIRypgjxIyuaHtLIsU73sLnitE3AvkTBVoRYuz+I7G6Ch6D5RpnOREOmAa3XDQSdllr7AGexpVtNiSky/EdhZbebeoyt3uyqzMI7hwlPibs/ljLHQ0P2CG6Wv+TQqg6OZxhkR7elYL9hA8XdjmUlRVuq1q2RWTLu6TGfTLXsk81/0KBAzuLsfNMep8lOhz6gQinOzGuyAcsOIOOika+rXJPHTn3+mRh2SPFqQ7FoLK3cLWfTtXjiJQdv3y2guEbQOXXVfsCHYoI2V1mbbTNQ6hVFWn8HF/DhzEApr2e55z2OLfVJ2AYFskUEbGQDvhC+Na7r5dYGRx/P8wIb/cA4ogDSqSNJ4R0AcGNkcDco2YwkM+KelZlF3XFfLWCNhelflxSJT0Iv 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: Hi all, this series cleans up some of the generic write helper calling conventions and the page cache writeback / invalidation for direct I/O. This is a spinoff from the no-bufferhead kernel project, for which we'll want to an use iomap based buffered write path in the block layer. Changes since v2: - stick to the existing behavior of returning a short write if the buffer fallback write or sync fails - bring back "fuse: use direct_write_fallback" which accidentally got lost in v2 Changes since v1: - remove current->backing_dev_info entirely - fix the pos/end calculation in direct_write_fallback - rename kiocb_invalidate_post_write to kiocb_invalidate_post_direct_write - typo fixes diffstat: block/fops.c | 18 +----- fs/btrfs/file.c | 6 -- fs/ceph/file.c | 6 -- fs/direct-io.c | 10 --- fs/ext4/file.c | 11 +--- fs/f2fs/file.c | 3 - fs/fuse/file.c | 4 - fs/gfs2/file.c | 6 -- fs/iomap/buffered-io.c | 9 ++- fs/iomap/direct-io.c | 88 ++++++++++++--------------------- fs/nfs/file.c | 6 -- fs/ntfs/file.c | 2 fs/ntfs3/file.c | 3 - fs/xfs/xfs_file.c | 6 -- fs/zonefs/file.c | 4 - include/linux/fs.h | 5 - include/linux/pagemap.h | 4 + include/linux/sched.h | 3 - mm/filemap.c | 126 ++++++++++++++++++++++++++---------------------- 19 files changed, 125 insertions(+), 195 deletions(-)