{"id":2225131,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2225131/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/patch/20260420114714.1621982-10-aalbersh@kernel.org/","project":{"id":8,"url":"http://patchwork.ozlabs.org/api/1.1/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},"msgid":"<20260420114714.1621982-10-aalbersh@kernel.org>","date":"2026-04-20T11:46:56","name":"[v8,09/22] 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/1.1/people/92821/?format=json","name":"Andrey Albershteyn","email":"aalbersh@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-ext4/patch/20260420114714.1621982-10-aalbersh@kernel.org/mbox/","series":[{"id":500600,"url":"http://patchwork.ozlabs.org/api/1.1/series/500600/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/list/?series=500600","date":"2026-04-20T11:46:51","name":"fs-verity support for XFS with post EOF merkle tree","version":8,"mbox":"http://patchwork.ozlabs.org/series/500600/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2225131/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2225131/checks/","tags":{},"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=FKejZjbd;\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=1776685682;\n\tbh=5p8RSIL/qqpPyP2Ea+WCebFmPMKr9xGnDDmczm8lq+k=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=FKejZjbdY4Xt9bsYb1u+5N+ij3J3IwSXPRp1BYh4RUh8I5qkaylO1q2dT4Uy5IWd4\n\t 8Qol0fNFAGsFJELryHepTKzg0mabjNnQluCr+VKAN40pAxm1O+XwvCg6EHUmYFTjc6\n\t 5WYbGJqneMBE4dw9Dao1LacVX9I5mTqtAZEAzzGJcYT7VqCRqP5tNPRK9z51DJieIU\n\t BFbbzkyQgn/+FkpcSH/2MRiCZL0EyRggyeYiZPMaLf5ftmOLQKS6A5wtjRij9wFjt1\n\t 43Ck/F1tdZgA53yGVtVxkFQwrjYs578M4VEB9i1oMYzFTDlWIPn/7PYhN6KmuF6sSJ\n\t AOw/JdMFbugNg==","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\tlinux-unionfs@vger.kernel.org,\n\tdjwong@kernel.org","Subject":"[PATCH v8 09/22] iomap: introduce iomap_fsverity_write() for writing\n fsverity metadata","Date":"Mon, 20 Apr 2026 13:46:56 +0200","Message-ID":"<20260420114714.1621982-10-aalbersh@kernel.org>","X-Mailer":"git-send-email 2.51.2","In-Reply-To":"<20260420114714.1621982-1-aalbersh@kernel.org>","References":"<20260420114714.1621982-1-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":["v8","09/22"]}