Received: by 2002:a05:6358:d09b:b0:dc:cd0c:909e with SMTP id jc27csp6920827rwb; Tue, 15 Nov 2022 05:32:04 -0800 (PST) X-Google-Smtp-Source: AA0mqf5Wn2scMUz96fFD3itKBPHXg9Dp5hENEN1qTpf4nwNaCZNN0Vwx+jOn5Vo+4XGVBUX2iR6V X-Received: by 2002:a17:902:bd4c:b0:185:4ec3:c703 with SMTP id b12-20020a170902bd4c00b001854ec3c703mr3935154plx.165.1668519124136; Tue, 15 Nov 2022 05:32:04 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1668519124; cv=none; d=google.com; s=arc-20160816; b=FyMB56TW/nqGRX4p0Fc7R3+H6fp/4KwHMsqn4gkVCAjQ/RSjEqYSTlJ8NIPL5uLKNT de0lIL2mdE3ETT9xt38VbqsImr6M113SatKFR5N5Aqy2GCNuEUmWfFSHTUyaBfWJxp3y h2M/fmLR6+FyXFxjQCW8/VjYTpRgqTRWOber7j/9zp2v1N/nVOzR/l5WPErqBxh4/4Tl STaFAwQdvxEZKdLOde2MdHXbYSe26SYGfw1TCS7dhdHWPAiaRCYlCo3vtiXrBlR7lr6o 8wh81bM4+7ZzCHZQwx+QAkExt6IcybXiJCqDjBsO3eW9Ipj77vDIiGrTtlClRdDmF9Qa 9FmA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:reply-to:message-id:subject:cc:to:from:date :dkim-signature:dkim-signature; bh=mcZK0uCYLnnDgZeVCTmh41Y7RICzghsvCX4u7bWxMPg=; b=EX3tOXB0I2Icn8fhtIcHSYSDiiejL5rI1MI/bWhX/z77Bro98elO6iF4GkcGh/wS1r 3eOGGH2GuLoKTm5LpDJCadNYeIAcSl7POtvqwpbP02J5F8RxmabdP9/W8t4MEDRg/ebe e7gjlUMhPXZrdVnM91+r7SQLFd/HZtdQXd7O0pggl9am3zv0GG8U8rRe9yIjNR5KZhlR w3IXSkbqSvV1n57uhpQN1FaWLh9ruHMrXClneYnF/iU09RJuXrsdWg6+whpwPaINroL5 rh9kfnNFW7bz+gBkq3BHrtbkvhoq9qt2rV1g3eezZtf/IL12yGuN6FCq8PxgPLGkexLL US0g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@suse.cz header.s=susede2_rsa header.b=2M4jynWb; dkim=neutral (no key) header.i=@suse.cz header.b=r2J9xiw9; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id bd33-20020a056a0027a100b00547d55a4d3bsi13048146pfb.285.2022.11.15.05.31.41; Tue, 15 Nov 2022 05:32:04 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.cz header.s=susede2_rsa header.b=2M4jynWb; dkim=neutral (no key) header.i=@suse.cz header.b=r2J9xiw9; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230106AbiKONLv (ORCPT + 89 others); Tue, 15 Nov 2022 08:11:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229545AbiKONLt (ORCPT ); Tue, 15 Nov 2022 08:11:49 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D136FFE7; Tue, 15 Nov 2022 05:11:48 -0800 (PST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 920E51F8C7; Tue, 15 Nov 2022 13:11:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1668517907; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=mcZK0uCYLnnDgZeVCTmh41Y7RICzghsvCX4u7bWxMPg=; b=2M4jynWbfd+pnHEfhJjvpGPceSZBJyRo7n/6IdU+p3uMddpyGShX+KL0LjtjAlgblsMN2m qY3XTbFz4GCAa6z6lJYBz/YhHwYdmeFsKvz5SZc/R5qmtlyEuHB39C1Gi9NCwgFhC1jzlB ckdwu/Stl5kZg4aJf0FpcmrKg4aT1ag= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1668517907; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=mcZK0uCYLnnDgZeVCTmh41Y7RICzghsvCX4u7bWxMPg=; b=r2J9xiw9D5YDjTRNDRzp/4NX1QpLveMXOf2Bpk3NASOOCFu1lADaHRUgtZQHqBPoAIQvMz z2JIUWXqHYc9JjAw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 5D7DF13A91; Tue, 15 Nov 2022 13:11:47 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id J4YoFROQc2OYWwAAMHmgww (envelope-from ); Tue, 15 Nov 2022 13:11:47 +0000 Date: Tue, 15 Nov 2022 14:11:21 +0100 From: David Sterba To: guo.ziliang@zte.com.cn Cc: clm@fb.com, josef@toxicpanda.com, dsterba@suse.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH linux-next] btrfs: remove redundant ret variable in delete_v1_space_cache Message-ID: <20221115131121.GF5824@twin.jikos.cz> Reply-To: dsterba@suse.cz References: <202211150914564821972@zte.com.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202211150914564821972@zte.com.cn> User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 15, 2022 at 09:14:56AM +0800, guo.ziliang@zte.com.cn wrote: > From: guo ziliang > Return value from delete_block_group_cache() directly instead of taking > this in another redundant variable. Have you found this manually or by some tool? I did a quick grep and found 14 other cases that could be simplified like that. I'm not sure if we really need it, but if you fix more than one case then lets do it.