Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp519716pxu; Thu, 3 Dec 2020 06:18:47 -0800 (PST) X-Google-Smtp-Source: ABdhPJzv/7sd+K69uCUG7OQulgmBPXv71GmIeHdZlQam1PLR5xB1mjRLLP1PISpHrNS6bSY0pe0W X-Received: by 2002:aa7:d2c9:: with SMTP id k9mr3067187edr.74.1607005126841; Thu, 03 Dec 2020 06:18:46 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1607005126; cv=none; d=google.com; s=arc-20160816; b=f6MLman2YQB53yuQa76s9jOEts028fGW3a9gIpmNA0TLuDMl85R2xI27PS3NobloWz Ccpcf77dXahtDC7jkwjDBzk3lTSs8PehHzpaLpKvR7YiwVC7WSalcexJwBf6HzuxcLk4 TMfLykVEhpLKu4U5k7t7cfpo5qG03s4Q3XG/Xghy4XFUqjFtuSEhQdMfGDggT1ElTsaj t4m51wtxM8Ex00J0yC8sQfaS0qt7+0hmMcocLodGzpSU8+STCAea4uqrrRz1EuPKO75x bfE3CaQUWHVgYypY/7X3PRzN5dRY6JL9GCdDrjdAXTM0nR8nvt12huBwFrojM/FHHu/7 w3dQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=23PQ7jS0SOByg3m+/8ltUUYkKjEizh/aMxqOumpNuno=; b=Ze9Fw7eTlQ6bK9tzKzyRXoZ7Y3YhLifYQBHsrJ2HHeGEmzaKSGpQmeUb6PQwk9XGiG 81wvuatXWTw3VlwOZIZsOk3NqyF072r2bNjq5L0tM1hhiXppItEUIyuO6jwAyvuN4qPw lg2Y4b/Jg7fT3rLPbJvmiLHYPw6DET6aqcv2rDby7uJeGSdAgZVoNd+D4iyVOI8zQol7 xNfvkzpzoHKtD/YCYZ0wgfx6DFqOPTwP+33wr8N2Fh/elg9bpJHSAJuqiIJoY8yQMoX/ mAyyQ6DQE5/VnBXLrSj09g2A60ZazuN2GTA2SR2X8Hs4M2dN0uar6PmsWql8dBtaco1U N6vQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id x91si954110ede.370.2020.12.03.06.18.21; Thu, 03 Dec 2020 06:18:46 -0800 (PST) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730935AbgLCOSQ (ORCPT + 99 others); Thu, 3 Dec 2020 09:18:16 -0500 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:58082 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730934AbgLCOSQ (ORCPT ); Thu, 3 Dec 2020 09:18:16 -0500 Received: from callcc.thunk.org (pool-72-74-133-215.bstnma.fios.verizon.net [72.74.133.215]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 0B3EFvTR026452 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 3 Dec 2020 09:15:57 -0500 Received: by callcc.thunk.org (Postfix, from userid 15806) id 13CB7420136; Thu, 3 Dec 2020 09:15:57 -0500 (EST) Date: Thu, 3 Dec 2020 09:15:57 -0500 From: "Theodore Y. Ts'o" To: "zhangyi (F)" Cc: xiakaixu1987@gmail.com, linux-ext4@vger.kernel.org, adilger.kernel@dilger.ca, Kaixu Xia Subject: Re: [PATCH] ext4: remove redundant operation that set bh to NULL Message-ID: <20201203141557.GG441757@mit.edu> References: <1603194069-17557-1-git-send-email-kaixuxia@tencent.com> <2677070f-f994-f20d-115b-55922d172da6@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2677070f-f994-f20d-115b-55922d172da6@huawei.com> Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Wed, Oct 21, 2020 at 09:10:18AM +0800, zhangyi (F) wrote: > On 2020/10/20 19:41, xiakaixu1987@gmail.com wrote: > > From: Kaixu Xia > > > > The out_fail branch path don't release the bh and the second bh is > > valid only in the for statement, so we don't need to set them to NULL. > > > > Signed-off-by: Kaixu Xia > > Thanks for the patch. It looks good to me. > Reviewed-by: zhangyi (F) Applied, thanks. - Ted