From patchwork Mon Jan 25 22:05:29 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaegeuk Kim X-Patchwork-Id: 8116171 Return-Path: X-Original-To: patchwork-linux-fsdevel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 38BB6BEEE5 for ; Mon, 25 Jan 2016 22:06:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4FC8D20303 for ; Mon, 25 Jan 2016 22:06:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 56588202EB for ; Mon, 25 Jan 2016 22:06:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932385AbcAYWFu (ORCPT ); Mon, 25 Jan 2016 17:05:50 -0500 Received: from mail.kernel.org ([198.145.29.136]:48898 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932350AbcAYWFp (ORCPT ); Mon, 25 Jan 2016 17:05:45 -0500 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EB4D9202EB; Mon, 25 Jan 2016 22:05:43 +0000 (UTC) Received: from localhost (107-1-141-74-ip-static.hfc.comcastbusiness.net [107.1.141.74]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 34C2020386; Mon, 25 Jan 2016 22:05:42 +0000 (UTC) From: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim Subject: [PATCH 4/6] f2fs: avoid multiple node page writes due to inline_data Date: Mon, 25 Jan 2016 14:05:29 -0800 Message-Id: <1453759531-16076-4-git-send-email-jaegeuk@kernel.org> X-Mailer: git-send-email 2.6.3 In-Reply-To: <1453759531-16076-1-git-send-email-jaegeuk@kernel.org> References: <1453759531-16076-1-git-send-email-jaegeuk@kernel.org> X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The sceanrio is: 1. create fully node blocks 2. flush node blocks 3. write inline_data for all the node blocks again 4. flush node blocks redundantly So, this patch tries to flush inline_data when flushing node blocks. Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu --- fs/f2fs/data.c | 1 + fs/f2fs/inline.c | 2 ++ fs/f2fs/node.c | 39 +++++++++++++++++++++++++++++++++++++++ fs/f2fs/node.h | 15 +++++++++++++++ 4 files changed, 57 insertions(+) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 89a37ba..260c0eb 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1463,6 +1463,7 @@ restart: if (pos + len <= MAX_INLINE_DATA) { read_inline_data(page, ipage); set_inode_flag(F2FS_I(inode), FI_DATA_EXIST); + set_inline_node(ipage); sync_inode_page(&dn); } else { err = f2fs_convert_inline_page(&dn, page); diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 8df13e5..fc4d298 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -159,6 +159,7 @@ no_update: /* clear inline data and flag after data writeback */ truncate_inline_inode(dn->inode_page, 0); + clear_inline_node(dn->inode_page); clear_out: stat_dec_inline_inode(dn->inode); f2fs_clear_inline_inode(dn->inode); @@ -233,6 +234,7 @@ int f2fs_write_inline_data(struct inode *inode, struct page *page) set_inode_flag(F2FS_I(inode), FI_DATA_EXIST); sync_inode_page(&dn); + clear_inline_node(dn.inode_page); f2fs_put_dnode(&dn); return 0; } diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 23b800d..94a6755 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1154,6 +1154,37 @@ void sync_inode_page(struct dnode_of_data *dn) dn->node_changed = ret ? true: false; } +static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino) +{ + struct inode *inode; + struct page *page; + + /* should flush inline_data before evict_inode */ + inode = ilookup(sbi->sb, ino); + if (!inode) + return; + + page = pagecache_get_page(inode->i_mapping, 0, FGP_LOCK|FGP_NOWAIT, 0); + if (!page) + goto iput_out; + + if (!PageUptodate(page)) + goto page_out; + + if (!PageDirty(page)) + goto page_out; + + if (!clear_page_dirty_for_io(page)) + goto page_out; + + if (!f2fs_write_inline_data(inode, page)) + inode_dec_dirty_pages(inode); +page_out: + f2fs_put_page(page, 1); +iput_out: + iput(inode); +} + int sync_node_pages(struct f2fs_sb_info *sbi, nid_t ino, struct writeback_control *wbc) { @@ -1221,6 +1252,14 @@ continue_unlock: goto continue_unlock; } + /* flush inline_data */ + if (!ino && is_inline_node(page)) { + clear_inline_node(page); + unlock_page(page); + flush_inline_data(sbi, ino_of_node(page)); + continue; + } + if (!clear_page_dirty_for_io(page)) goto continue_unlock; diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index 23bd992..1f4f9d4 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -379,6 +379,21 @@ static inline int is_node(struct page *page, int type) #define is_fsync_dnode(page) is_node(page, FSYNC_BIT_SHIFT) #define is_dent_dnode(page) is_node(page, DENT_BIT_SHIFT) +static inline int is_inline_node(struct page *page) +{ + return PageChecked(page); +} + +static inline void set_inline_node(struct page *page) +{ + SetPageChecked(page); +} + +static inline void clear_inline_node(struct page *page) +{ + ClearPageChecked(page); +} + static inline void set_cold_node(struct inode *inode, struct page *page) { struct f2fs_node *rn = F2FS_NODE(page);