Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932097AbaDKJ7T (ORCPT ); Fri, 11 Apr 2014 05:59:19 -0400 Received: from cn.fujitsu.com ([59.151.112.132]:4747 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1755942AbaDKJ7N (ORCPT ); Fri, 11 Apr 2014 05:59:13 -0400 X-IronPort-AV: E=Sophos;i="4.97,841,1389715200"; d="scan'208";a="29145733" Message-ID: <5347BAB7.6060306@cn.fujitsu.com> Date: Fri, 11 Apr 2014 17:49:43 +0800 From: Gu Zheng User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110930 Thunderbird/7.0.1 MIME-Version: 1.0 To: Kim CC: f2fs , fsdevel , linux-kernel Subject: [PATCH 2/7] f2fs: remove the unuseful "issue_tail" list Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.167.226.100] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With the issue_list and dispatch_list, we can handle flush_merge already, so remove the useless "issue_tail" list. Signed-off-by: Gu Zheng --- fs/f2fs/f2fs.h | 1 - fs/f2fs/segment.c | 5 ++--- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 2ecac83..90109fa 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -358,7 +358,6 @@ struct f2fs_sm_info { struct flush_cmd *issue_list; /* list for command issue */ struct flush_cmd *dispatch_list; /* list for command dispatch */ spinlock_t issue_lock; /* for issue list lock */ - struct flush_cmd *issue_tail; /* list tail of issue list */ }; /* diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 524b7ed..8a6fe2a 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -209,7 +209,7 @@ repeat: spin_lock(&sm_i->issue_lock); if (sm_i->issue_list) { sm_i->dispatch_list = sm_i->issue_list; - sm_i->issue_list = sm_i->issue_tail = NULL; + sm_i->issue_list = NULL; } spin_unlock(&sm_i->issue_lock); @@ -250,10 +250,9 @@ int f2fs_issue_flush(struct f2fs_sb_info *sbi) spin_lock(&sm_i->issue_lock); if (sm_i->issue_list) - sm_i->issue_tail->next = cmd; + sm_i->issue_list->next = cmd; else sm_i->issue_list = cmd; - sm_i->issue_tail = cmd; spin_unlock(&sm_i->issue_lock); if (!sm_i->dispatch_list) -- 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/