{"id":2221458,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2221458/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/patch/20260409131404.1545834-10-aalbersh@kernel.org/","project":{"id":8,"url":"http://patchwork.ozlabs.org/api/1.2/projects/8/?format=json","name":"Linux ext4 filesystem development","link_name":"linux-ext4","list_id":"linux-ext4.vger.kernel.org","list_email":"linux-ext4@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260409131404.1545834-10-aalbersh@kernel.org>","list_archive_url":null,"date":"2026-04-09T13:13:41","name":"[v7,09/22] iomap: introduce iomap_fsverity_write() for writing fsverity metadata","commit_ref":null,"pull_url":null,"state":"not-applicable","archived":false,"hash":"be0248b79ff4515480a80b9ab4fd42f0fb600bb3","submitter":{"id":92821,"url":"http://patchwork.ozlabs.org/api/1.2/people/92821/?format=json","name":"Andrey Albershteyn","email":"aalbersh@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-ext4/patch/20260409131404.1545834-10-aalbersh@kernel.org/mbox/","series":[{"id":499292,"url":"http://patchwork.ozlabs.org/api/1.2/series/499292/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/list/?series=499292","date":"2026-04-09T13:13:34","name":"fs-verity support for XFS with post EOF merkle tree","version":7,"mbox":"http://patchwork.ozlabs.org/series/499292/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2221458/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2221458/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-ext4@vger.kernel.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","patchwork-incoming@ozlabs.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=Yy4RL3N1;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=2404:9400:2221:ea00::3; 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arc=none smtp.client-ip=10.30.226.201"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1775740477;\n\tbh=5p8RSIL/qqpPyP2Ea+WCebFmPMKr9xGnDDmczm8lq+k=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=Yy4RL3N14+WsWbEPHwDdbA+jrJw1UBUd0j/aGAW+Xe1/iyORdnKqMtlIrTHShZGwO\n\t 1WJ+tYMvGjyqW+Kzzbf+PNXt1VIs9f3HsWpJNNeuk/U7ciUtQIb81dxfmB6PUIRF7n\n\t lLla8oshU/XVLuKMNgCxIHiYmrJVIXlQB1M3cA3V26UxWtaehEzXD85MHadzZCmWbr\n\t BaM0h4MVFp6W7LjJEYGkqCe4jbOcGq0czGrOumZRSZ0BogZVsw+U0JqopYh0hQSjj0\n\t eZGJVg//UcV9nNoeJ1WgivY+VOkXBRXqXGk2NhFfzqDLAq9pXQ1xTXeB1Y9J/7bHmw\n\t yqDtMHQvpJEKg==","From":"Andrey Albershteyn ","To":"linux-xfs@vger.kernel.org,\n\tfsverity@lists.linux.dev,\n\tlinux-fsdevel@vger.kernel.org,\n\tebiggers@kernel.org","Cc":"Andrey Albershteyn ,\n\thch@lst.de,\n\tlinux-ext4@vger.kernel.org,\n\tlinux-f2fs-devel@lists.sourceforge.net,\n\tlinux-btrfs@vger.kernel.org,\n\tdjwong@kernel.org","Subject":"[PATCH v7 09/22] iomap: introduce iomap_fsverity_write() for writing\n fsverity metadata","Date":"Thu, 9 Apr 2026 15:13:41 +0200","Message-ID":"<20260409131404.1545834-10-aalbersh@kernel.org>","X-Mailer":"git-send-email 2.51.2","In-Reply-To":"<20260409131404.1545834-1-aalbersh@kernel.org>","References":"<20260409131404.1545834-1-aalbersh@kernel.org>","Precedence":"bulk","X-Mailing-List":"linux-ext4@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Spam-Status":"No, score=-1.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DMARC_PASS,\n\tMAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=disabled\n\tversion=4.0.1","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org"},"content":"This is just a wrapper around iomap_file_buffered_write() to create\nnecessary iterator over metadata.\n\nReviewed-by: Christoph Hellwig \nReviewed-by: Darrick J. Wong \nSigned-off-by: Andrey Albershteyn \n---\n fs/iomap/buffered-io.c | 25 +++++++++++++++++++++++++\n include/linux/iomap.h | 3 +++\n 2 files changed, 28 insertions(+)","diff":"diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c\nindex 843314852663..5c9fd925a62f 100644\n--- a/fs/iomap/buffered-io.c\n+++ b/fs/iomap/buffered-io.c\n@@ -1287,6 +1287,31 @@ iomap_file_buffered_write(struct kiocb *iocb, struct iov_iter *i,\n }\n EXPORT_SYMBOL_GPL(iomap_file_buffered_write);\n \n+int iomap_fsverity_write(struct file *file, loff_t pos, size_t length,\n+\t\tconst void *buf, const struct iomap_ops *ops,\n+\t\tconst struct iomap_write_ops *write_ops)\n+{\n+\tint\t\t\tret;\n+\tstruct iov_iter\t\tiiter;\n+\tstruct kvec\t\tkvec = {\n+\t\t.iov_base\t= (void *)buf,\n+\t\t.iov_len\t= length,\n+\t};\n+\tstruct kiocb\t\tiocb = {\n+\t\t.ki_filp\t= file,\n+\t\t.ki_ioprio\t= get_current_ioprio(),\n+\t\t.ki_pos\t\t= pos,\n+\t};\n+\n+\tiov_iter_kvec(&iiter, WRITE, &kvec, 1, length);\n+\n+\tret = iomap_file_buffered_write(&iocb, &iiter, ops, write_ops, NULL);\n+\tif (ret < 0)\n+\t\treturn ret;\n+\treturn ret == length ? 0 : -EIO;\n+}\n+EXPORT_SYMBOL_GPL(iomap_fsverity_write);\n+\n static void iomap_write_delalloc_ifs_punch(struct inode *inode,\n \t\tstruct folio *folio, loff_t start_byte, loff_t end_byte,\n \t\tstruct iomap *iomap, iomap_punch_t punch)\ndiff --git a/include/linux/iomap.h b/include/linux/iomap.h\nindex 4d9202cae29f..83586f09f365 100644\n--- a/include/linux/iomap.h\n+++ b/include/linux/iomap.h\n@@ -359,6 +359,9 @@ static inline bool iomap_want_unshare_iter(const struct iomap_iter *iter)\n ssize_t iomap_file_buffered_write(struct kiocb *iocb, struct iov_iter *from,\n \t\tconst struct iomap_ops *ops,\n \t\tconst struct iomap_write_ops *write_ops, void *private);\n+int iomap_fsverity_write(struct file *file, loff_t pos, size_t length,\n+\t\tconst void *buf, const struct iomap_ops *ops,\n+\t\tconst struct iomap_write_ops *write_ops);\n void iomap_read_folio(const struct iomap_ops *ops,\n \t\tstruct iomap_read_folio_ctx *ctx, void *private);\n void iomap_readahead(const struct iomap_ops *ops,\n","prefixes":["v7","09/22"]}