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GET /api/patches/2218287/?format=api
{ "id": 2218287, "url": "http://patchwork.ozlabs.org/api/patches/2218287/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260331212827.2631020-13-aalbersh@kernel.org/", "project": { "id": 8, "url": "http://patchwork.ozlabs.org/api/projects/8/?format=api", "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": "<20260331212827.2631020-13-aalbersh@kernel.org>", "list_archive_url": null, "date": "2026-03-31T21:28:13", "name": "[v6,12/22] xfs: disable direct read path for fs-verity files", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "7341b7348870d68f905cfa604e2324bc63991579", "submitter": { "id": 92821, "url": "http://patchwork.ozlabs.org/api/people/92821/?format=api", "name": "Andrey Albershteyn", "email": "aalbersh@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260331212827.2631020-13-aalbersh@kernel.org/mbox/", "series": [ { "id": 498255, "url": "http://patchwork.ozlabs.org/api/series/498255/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=498255", "date": "2026-03-31T21:28:01", "name": "fs-verity support for XFS with post EOF merkle tree", "version": 6, "mbox": "http://patchwork.ozlabs.org/series/498255/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2218287/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218287/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=0vU0=B7=vger.kernel.org=linux-ext4+bounces-15559-patchwork-incoming=ozlabs.org@ozlabs.org>", "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=jVBoqJks;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=150.107.74.76; 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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=1774992551;\n\tbh=l2TuE4Dq3W00QnGqh26ac7WtX/eqBCa3lcQ4ZM8TF1E=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=jVBoqJkshjGFgttNf9VtoNPjgn7uqVxzmiMf5GEfU8FdSLogM0d21/0lK9I4z+eHJ\n\t S68Ceej719UIZ9mvMvfZSIl6QCKNv+wRe7IRkg84+sEPCLTmOiYk7fAieVp73It/W7\n\t Bs0DBWiKtLbJyCsMGa5uk+aN1KHs8G/NeYG5n3GVJIUQ5mhnRixQJ1qNv6TfJ16oD4\n\t Dp0HBkoXe3+mthJAElhZIraCipj4uGHFo1fBCyJcH8CkN73M4hxNHsQsQLXBVDXa31\n\t Oq0OJoS6ih5/w6V0XjQx2O53djq7MqapQn3blLXaiKi7wPoRhQ6fiLBh8+AuMltKBy\n\t 2D70IGft3QjuQ==", "From": "Andrey Albershteyn <aalbersh@kernel.org>", "To": "linux-xfs@vger.kernel.org,\n\tfsverity@lists.linux.dev,\n\tlinux-fsdevel@vger.kernel.org,\n\tebiggers@kernel.org", "Cc": "Andrey Albershteyn <aalbersh@kernel.org>,\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 v6 12/22] xfs: disable direct read path for fs-verity files", "Date": "Tue, 31 Mar 2026 23:28:13 +0200", "Message-ID": "<20260331212827.2631020-13-aalbersh@kernel.org>", "X-Mailer": "git-send-email 2.51.2", "In-Reply-To": "<20260331212827.2631020-1-aalbersh@kernel.org>", "References": "<20260331212827.2631020-1-aalbersh@kernel.org>", "Precedence": "bulk", "X-Mailing-List": "linux-ext4@vger.kernel.org", "List-Id": "<linux-ext4.vger.kernel.org>", "List-Subscribe": "<mailto:linux-ext4+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-ext4+unsubscribe@vger.kernel.org>", "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": "The direct path is not supported on verity files. Attempts to use direct\nI/O path on such files should fall back to buffered I/O path.\n\nSigned-off-by: Darrick J. Wong <djwong@kernel.org>\nReviewed-by: Christoph Hellwig <hch@lst.de>\nSigned-off-by: Andrey Albershteyn <aalbersh@kernel.org>\n---\n fs/xfs/xfs_file.c | 11 ++++++++++-\n 1 file changed, 10 insertions(+), 1 deletion(-)", "diff": "diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c\nindex a980ac5196a8..6fa9835f9531 100644\n--- a/fs/xfs/xfs_file.c\n+++ b/fs/xfs/xfs_file.c\n@@ -282,7 +282,8 @@ xfs_file_dax_read(\n \tstruct kiocb\t\t*iocb,\n \tstruct iov_iter\t\t*to)\n {\n-\tstruct xfs_inode\t*ip = XFS_I(iocb->ki_filp->f_mapping->host);\n+\tstruct inode\t\t*inode = iocb->ki_filp->f_mapping->host;\n+\tstruct xfs_inode\t*ip = XFS_I(inode);\n \tssize_t\t\t\tret = 0;\n \n \ttrace_xfs_file_dax_read(iocb, to);\n@@ -333,6 +334,14 @@ xfs_file_read_iter(\n \tif (xfs_is_shutdown(mp))\n \t\treturn -EIO;\n \n+\t/*\n+\t * In case fs-verity is enabled, we also fallback to the buffered read\n+\t * from the direct read path. Therefore, IOCB_DIRECT is set and need to\n+\t * be cleared (see generic_file_read_iter())\n+\t */\n+\tif (fsverity_active(inode))\n+\t\tiocb->ki_flags &= ~IOCB_DIRECT;\n+\n \tif (IS_DAX(inode))\n \t\tret = xfs_file_dax_read(iocb, to);\n \telse if (iocb->ki_flags & IOCB_DIRECT)\n", "prefixes": [ "v6", "12/22" ] }