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{ "id": 2219177, "url": "http://patchwork.ozlabs.org/api/1.0/covers/2219177/?format=api", "project": { "id": 12, "url": "http://patchwork.ozlabs.org/api/1.0/projects/12/?format=api", "name": "Linux CIFS Client", "link_name": "linux-cifs-client", "list_id": "linux-cifs.vger.kernel.org", "list_email": "linux-cifs@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260402141839.461257-1-huiwen.he@linux.dev>", "date": "2026-04-02T14:18:26", "name": "[v3,00/13] smb: improve search speed of SMB1 maperror", "submitter": { "id": 93029, "url": "http://patchwork.ozlabs.org/api/1.0/people/93029/?format=api", "name": null, "email": "huiwen.he@linux.dev" }, "series": [ { "id": 498490, "url": "http://patchwork.ozlabs.org/api/1.0/series/498490/?format=api", "date": "2026-04-02T14:18:28", "name": "smb: improve search speed of SMB1 maperror", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/498490/mbox/" } ], "headers": { "Return-Path": "\n <linux-cifs+bounces-10633-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-cifs@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256\n header.s=key1 header.b=ASFMiDvy;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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Thu, 2 Apr 2026 14:19:45 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 0EC893E557D;\n\tThu, 2 Apr 2026 14:19:45 +0000 (UTC)", "from out-178.mta0.migadu.com (out-178.mta0.migadu.com\n [91.218.175.178])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 3AAC63DD510\n\tfor <linux-cifs@vger.kernel.org>; Thu, 2 Apr 2026 14:19:42 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775139584; cv=none;\n b=GB5mmrM2ZRfej7DxjKW3tYuUIT8IWjbKanhk1qbWeSxE/lWRtK3JMhi2qeTshJlwT6ffQRqe7XvOofBb1TFjWF/XVCC91YJlmUEvSfBN2Qp+s/S2zGt61gjQhpLyTln2TKiWTbpwP0EyhH/itPYMLL7vSfDnyYbsnfV84HJvsDc=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775139584; c=relaxed/simple;\n\tbh=BnHpjpqiEySw6avpX4qyduo3FtzWBVBfD0VjWGkZiAM=;\n\th=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=E41U9/9oFgNUMMurhy18g/NG7d28ovUWzXIggQdLDXWNHfWPAml5+vt7XgdAje396miPnZyeRVt+rdZU4SWk1/SRFhMdUrWbKyKlRYcPFVvx8PnjFxskqUnV5J1gwmCz0UEOdliXNC7CZROy4qawSfPHla5cm316pq3mzoP1R9w=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=linux.dev;\n spf=pass smtp.mailfrom=linux.dev;\n dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev\n header.b=ASFMiDvy; arc=none smtp.client-ip=91.218.175.178", "X-Report-Abuse": "Please report any abuse attempt to abuse@migadu.com and\n include these headers.", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1;\n\tt=1775139580;\n\th=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n\t to:to:cc:cc:mime-version:mime-version:\n\t content-transfer-encoding:content-transfer-encoding;\n\tbh=GA26MpNK1PLvK311ka2IkW6uD6ecxoXEcBSK+/lNejQ=;\n\tb=ASFMiDvy94lJa0fTCTQhczpTfj5ed3KGlcY01+E/pR78OsEFTNlSrEbC/+1W9kiLHtmJVf\n\tXOlfSUzctht4VusZq0/HWA+zz9LfvosCubz5pbG/YBjwCr0wm/nThpALzHIb7FpZIjmMw7\n\tcyQgsCHJH32od6dGlz/gsbJ6z2Ggk4Q=", "From": "huiwen.he@linux.dev", "To": "smfrench@gmail.com,\n\tlinkinjeon@kernel.org,\n\tdhowells@redhat.com,\n\tchenxiaosong@kylinos.cn,\n\tchenxiaosong@chenxiaosong.com,\n\ttangyouling@kylinos.cn", "Cc": "linux-cifs@vger.kernel.org,\n\tHuiwen He <hehuiwen@kylinos.cn>", "Subject": "[PATCH v3 00/13] smb: improve search speed of SMB1 maperror", "Date": "Thu, 2 Apr 2026 14:18:26 +0000", "Message-ID": "<20260402141839.461257-1-huiwen.he@linux.dev>", "Precedence": "bulk", "X-Mailing-List": "linux-cifs@vger.kernel.org", "List-Id": "<linux-cifs.vger.kernel.org>", "List-Subscribe": "<mailto:linux-cifs+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-cifs+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Migadu-Flow": "FLOW_OUT" }, "content": "From: Huiwen He <hehuiwen@kylinos.cn>\n\nv2->v3:\n - All test cases passed for v3, please see ChenXiaoSong's blog: https://chenxiaosong.com/en/smb1maperror-test.html\n - Patch #01: Correct the SMB1 mapping NT_STATUS_OBJECT_NAME_INVALID \n - Patch #02 #10: gen_smb1_mapping: Enhance regex robustness to cover mixed-case prefixes (e.g., ErrNotALink), and match exact filenames to prevent mapping outputs to incorrect files.\n - Patch #06: Add `__init` to `DEFINE_CHECK_SORT_FUNC`\n - Patch #07: Use `KUNIT_ASSERT_NOT_NULL`\n - Add patch #08: Move ERRnetlogonNotStarted to DOS error class\n\nv2: https://lore.kernel.org/linux-cifs/20260401072912.355072-1-huiwen.he@linux.dev/\n\nWhen searching for the last element, the comparison counts are shown in the table below:\n\n+--------------------+--------+--------+\n| |Before |After |\n| |Patchset|Patchset|\n+--------------------+--------+--------+\n| ntstatus_to_dos_map| 533 | 9 |\n+--------------------+--------+--------+\n|mapping_table_ERRDOS| 34 | 5 |\n+--------------------+--------+--------+\n|mapping_table_ERRSRV| 37 | 5 |\n+--------------------+--------+--------+\n\nThe following patches from v1 have already been merged into the mainline:\n - a71a4aab4834 smb/client: add parentheses to NT error code definitions containing bitwise OR operator\n - a9adafd40165 smb/client: add 4 NT error code definitions\n - 98def4eb0244 smb/server: remove unused nterr.h\n - 9f99caa8950a smb/client: fix NT_STATUS_UNABLE_TO_FREE_VM value\n - b2b50fca34da smb/client: fix NT_STATUS_DEVICE_DOOR_OPEN value\n - a1237c203f17 smb/client: fix NT_STATUS_NO_DATA_DETECTED value\n\nHuiwen He (9):\n smb/client: annotate nterr.h with DOS error codes\n smb/client: autogenerate SMB1 NT status to DOS error mapping\n smb/client: replace nt_errs with ntstatus_to_dos_map\n smb/client: refactor ntstatus_to_dos() to return mapping entry\n smb/client: use binary search for NT status to DOS mapping\n smb/client: move ERRnetlogonNotStarted to DOS error class\n smb/client: annotate smberr.h with POSIX error codes\n smb/client: autogenerate SMB1 DOS/SRV to POSIX error mapping\n smb/client: use binary search for SMB1 DOS/SRV error mapping\n\nYouling Tang (4):\n smb/client: check if ntstatus_to_dos_map is sorted\n smb/client: introduce KUnit test to check ntstatus_to_dos_map search\n smb/client: check if SMB1 DOS/SRV error mapping arrays are sorted\n smb/client: introduce KUnit tests to check DOS/SRV err mapping search\n\n fs/smb/client/.gitignore | 3 +\n fs/smb/client/Kconfig | 11 +\n fs/smb/client/Makefile | 25 +-\n fs/smb/client/cifsfs.c | 6 +\n fs/smb/client/gen_smb1_mapping | 112 +++\n fs/smb/client/nterr.c | 704 -------------------\n fs/smb/client/nterr.h | 1082 +++++++++++++++--------------\n fs/smb/client/smb1maperror.c | 873 +++++------------------\n fs/smb/client/smb1maperror_test.c | 83 +++\n fs/smb/client/smb1proto.h | 9 +\n fs/smb/client/smberr.h | 415 +++++++----\n 11 files changed, 1235 insertions(+), 2088 deletions(-)\n create mode 100644 fs/smb/client/gen_smb1_mapping\n delete mode 100644 fs/smb/client/nterr.c\n create mode 100644 fs/smb/client/smb1maperror_test.c" }