From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-182.mta0.migadu.com (out-182.mta0.migadu.com [91.218.175.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B93CD335572 for ; Fri, 5 Dec 2025 13:26:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764941221; cv=none; b=egaSSz73j3KmZQqDt3sSBGLmqKwL/kz2+03n7lzO8upRsMOxGY97aNpSQ3uCjhwIHYg4U/dFAp+FpUQaBir7VNckZZFZqh9TOnfG0aLUEHUQCgO0PU5K/ahsD2P0R34kyfBKJ/oOCVKcshZkf+iWrrz9XP+5eE/JUbobAEWcpcI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764941221; c=relaxed/simple; bh=c47xT7wbjW3QvK5SkcxYdMTitg/gBjxXczfzlkbp5eo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Np2ORPf8cdl3zrwdDj90+9jfxJA+Cam02xXpD9CvzORVU848Q9Q7xJsp0/h0IL6X/24lCeEZhxLFdpy3BdNv3SJFO+F7OTmgnX4/qFcLNIg+T4/dNQfTI2R5/7+uCPb1VUldaLrGpe0KTGAKrAHc1QuI6UXYLafuL1JndhQqHZo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=dOBEbjHD; arc=none smtp.client-ip=91.218.175.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="dOBEbjHD" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1764941204; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=4OO8ZLxc62rFL3goUJ523STAz0a99bywbUG+QQbGHo4=; b=dOBEbjHDPk2940jWzyfrsFpdTRhqSl1s2P711yrMOvdAfLuKGuwLaK80Ck38B8YjB2wk9t WElv0ubCCulgpoinI1UU0i4LI8xb426rI9uiBu8fn5cm5xUJl35AYzJajBb4CDo3PcxXq2 PLfcYXbKz0ZZaw26Qo+Ke1ge6eE/SqU= From: chenxiaosong.chenxiaosong@linux.dev To: sfrench@samba.org, smfrench@gmail.com, linkinjeon@kernel.org, linkinjeon@samba.org Cc: linux-cifs@vger.kernel.org, linux-kernel@vger.kernel.org, liuzhengyuan@kylinos.cn, huhai@kylinos.cn, liuyun01@kylinos.cn, ChenXiaoSong Subject: [PATCH v3 0/9] smb: improve search speed of SMB2 maperror Date: Fri, 5 Dec 2025 21:25:26 +0800 Message-ID: <20251205132536.2703110-1-chenxiaosong.chenxiaosong@linux.dev> Precedence: bulk X-Mailing-List: linux-cifs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT From: ChenXiaoSong Before applying this patchset, when searching for the last element of smb2_error_map_table array and calling smb2_print_status(), 3486 comparisons are needed. After applying this patchset, only 10 comparisons are required. v1: https://lore.kernel.org/linux-cifs/20251204045818.2590727-1-chenxiaosong.chenxiaosong@linux.dev/ The three patches from v1 have already been applied to the for-next branch of cifs-2.6.git. Please replace the following patches: - [v1 01/10] smb/client: reduce loop count in map_smb2_to_linux_error() by half: https://git.samba.org/sfrench/?p=sfrench/cifs-2.6.git;a=commitdiff;h=26866d690bd180e1860548c43e70fdefe50638ff - Replace it with this version(v3) patch #0001: update commit message: array has 1743 elements - [v1 02/10] smb/client: remove unused elements from smb2_error_map_table array: https://git.samba.org/sfrench/?p=sfrench/cifs-2.6.git;a=commitdiff;h=905d8999d67dcbe4ce12ef87996e4440e068196d - It is the same as patch #0002 in this version(v3). - [v1 03/10] smb: add two elements to smb2_error_map_table array: https://git.samba.org/sfrench/?p=sfrench/cifs-2.6.git;a=commitdiff;h=ba521f56912f6ff5121e54c17c855298f947c9ea - Replace it with this version(v3) patch #0003 #0004. v2: https://lore.kernel.org/all/20251205042958.2658496-1-chenxiaosong.chenxiaosong@linux.dev/ v2->v3: - Patch #0007: move struct status_to_posix_error to smb2glob.h, change smb2_get_err_map to be a global function, delete unused forward declaration `struct statfs` in smb2proto.h. - Patch #0008: create new smb2maperror_test.c, refer to the implementation in fs/ext4/mballoc-test.c. ChenXiaoSong (9): smb/client: reduce loop count in map_smb2_to_linux_error() by half smb/client: remove unused elements from smb2_error_map_table array smb: rename to STATUS_SMB_NO_PREAUTH_INTEGRITY_HASH_OVERLAP smb/client: add two elements to smb2_error_map_table array smb/client: sort smb2_error_map_table array smb/client: use bsearch() to find target status code smb/client: introduce smb2_get_err_map() smb/client: introduce smb2maperror KUnit tests smb/server: rename include guard in smb_common.h fs/smb/Kconfig | 17 ++++++ fs/smb/client/cifsfs.c | 2 + fs/smb/client/smb2glob.h | 6 ++ fs/smb/client/smb2maperror.c | 91 ++++++++++++++++++------------- fs/smb/client/smb2maperror_test.c | 86 +++++++++++++++++++++++++++++ fs/smb/client/smb2proto.h | 4 +- fs/smb/common/smb2status.h | 5 +- fs/smb/server/smb2pdu.c | 2 +- fs/smb/server/smb_common.h | 6 +- 9 files changed, 174 insertions(+), 45 deletions(-) create mode 100644 fs/smb/client/smb2maperror_test.c -- 2.43.0