From patchwork Tue Jun 29 08:50:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lijian_8010a29@163.com X-Patchwork-Id: 12349551 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FBDDC11F66 for ; Tue, 29 Jun 2021 08:51:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 18E7861DC1 for ; Tue, 29 Jun 2021 08:51:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232487AbhF2IyI (ORCPT ); Tue, 29 Jun 2021 04:54:08 -0400 Received: from m12-18.163.com ([220.181.12.18]:41754 "EHLO m12-18.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232429AbhF2IyI (ORCPT ); Tue, 29 Jun 2021 04:54:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id; bh=Cue9Tz+26Mw1WyK0oj /mT043sOqq/LAAEDvO/pxLwCQ=; b=EyqH6XMLY1TTtVyEmyFSD4aYV+o91mSI+s n8CWW4x+GLv1huQ/R9oY+bNhguWjE0iWF7NzSJGSsPidluyM4DaB+CX3ZBPlDM32 0y3UmQjyTfUg5hMnY8pmhJhY4Jd3u5NhKs95+b+NdRlPqjbYk6tBDC15Ygmf+al8 ssVdR9nX8= Received: from localhost.localdomain (unknown [218.17.89.92]) by smtp14 (Coremail) with SMTP id EsCowADX3Mzm3tpg8GJEsA--.41226S2; Tue, 29 Jun 2021 16:50:47 +0800 (CST) From: lijian_8010a29@163.com To: clm@fb.com, josef@toxicpanda.com, dsterba@suse.com Cc: linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, lijian Subject: [PATCH] fs: btrfs: extent_map: removed unneeded variable Date: Tue, 29 Jun 2021 08:50:25 +0000 Message-Id: <20210629085025.98437-1-lijian_8010a29@163.com> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: EsCowADX3Mzm3tpg8GJEsA--.41226S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7Jr45Jw43Aw15JrWUZw43KFg_yoWfCrb_JF 4xAr97GF45Kw4Y9ryqkwnrXrWvqr4UuF1aq3yUtrnxAr1UXa1UZws2yrn8tayrCr4UAF9r GF4qqF1jkF1xujkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU5bmRUUUUUU== X-Originating-IP: [218.17.89.92] X-CM-SenderInfo: 5olmxttqbyiikqdsmqqrwthudrp/1tbiHQfAUFSIrVxuhwAAsO Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org From: lijian removed unneeded variable 'ret'. Signed-off-by: lijian --- fs/btrfs/extent_map.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 4a8e02f7b6c7..70d3e76e30c5 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -296,7 +296,6 @@ static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em) int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len, u64 gen) { - int ret = 0; struct extent_map *em; bool prealloc = false; @@ -328,8 +327,7 @@ int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len, free_extent_map(em); out: write_unlock(&tree->lock); - return ret; - + return 0; } void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em)