From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754017AbaILMT7 (ORCPT ); Fri, 12 Sep 2014 08:19:59 -0400 Received: from mga02.intel.com ([134.134.136.20]:61982 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751003AbaILMT6 (ORCPT ); Fri, 12 Sep 2014 08:19:58 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,512,1406617200"; d="scan'208";a="477109979" From: Huang Ying To: Jaegeuk Kim , Changman Lee Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Huang Ying , huang.ying.caritas@gmail.com Subject: [PATCH] f2fs: Use nm_i->next_scan_nid as default for next_free_nid Date: Fri, 12 Sep 2014 20:19:48 +0800 Message-Id: <1410524388-26544-1-git-send-email-ying.huang@intel.com> X-Mailer: git-send-email 2.1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Now, if there is no free nid in nm_i->free_nid_list, 0 may be saved into next_free_nid of checkpoint, this may cause useless scanning for next mount. nm_i->next_scan_nid should be a better default value than 0. Signed-off-by: Huang, Ying --- fs/f2fs/checkpoint.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -802,7 +802,8 @@ static void do_checkpoint(struct f2fs_sb { struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE); - nid_t last_nid = 0; + struct f2fs_nm_info *nm_i = NM_I(sbi); + nid_t last_nid = nm_i->next_scan_nid; block_t start_blk; struct page *cp_page; unsigned int data_sum_blocks, orphan_blocks;