From mboxrd@z Thu Jan 1 00:00:00 1970 From: Haicheng Li Subject: [PATCH 4/4] f2fs: optimize build_free_nids() Date: Mon, 6 May 2013 23:15:44 +0800 Message-ID: <1367853344-28938-5-git-send-email-haicheng.li@linux.intel.com> References: <1367853344-28938-1-git-send-email-haicheng.li@linux.intel.com> Cc: linux-kernel@vger.kernel.org, Haicheng Li , Haicheng Li To: linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, Jaegeuk Kim Return-path: In-Reply-To: <1367853344-28938-1-git-send-email-haicheng.li@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org When nm_i->fcnt > 2 * MAX_FREE_NIDS, stop scanning other NAT pages. Signed-off-by: Haicheng Li --- fs/f2fs/node.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 1fe3fe2..3136224 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1342,6 +1342,8 @@ static void build_free_nids(struct f2fs_sb_info *sbi) if (nid >= nm_i->max_nid) nid = 0; + if (nm_i->fcnt > 2 * MAX_FREE_NIDS) + break; if (i++ == FREE_NID_PAGES) break; } -- 1.7.9.5