From 9c7bb702122fdf7c391f7d02c7d27a61a2c0c4b7 Mon Sep 17 00:00:00 2001 From: Changman Lee Date: Mon, 8 Dec 2014 15:29:40 +0900 Subject: [PATCH] f2fs: check if inode state is dirty at fsync If inode state is dirty, go straight to write. Suggested-by: Jaegeuk Kim Signed-off-by: Changman Lee Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index b6f3fbf2a376..0b9700216303 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -138,6 +138,17 @@ static inline bool need_do_checkpoint(struct inode *inode) return need_cp; } +static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino) +{ + struct page *i = find_get_page(NODE_MAPPING(sbi), ino); + bool ret = false; + /* But we need to avoid that there are some inode updates */ + if ((i && PageDirty(i)) || need_inode_block_update(sbi, ino)) + ret = true; + f2fs_put_page(i, 0); + return ret; +} + int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) { struct inode *inode = file->f_mapping->host; @@ -168,19 +179,21 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) return ret; } + /* if the inode is dirty, let's recover all the time */ + if (!datasync && is_inode_flag_set(fi, FI_DIRTY_INODE)) { + update_inode_page(inode); + goto go_write; + } + /* * if there is no written data, don't waste time to write recovery info. */ if (!is_inode_flag_set(fi, FI_APPEND_WRITE) && !exist_written_data(sbi, ino, APPEND_INO)) { - struct page *i = find_get_page(NODE_MAPPING(sbi), ino); - /* But we need to avoid that there are some inode updates */ - if ((i && PageDirty(i)) || need_inode_block_update(sbi, ino)) { - f2fs_put_page(i, 0); + /* it may call write_inode just prior to fsync */ + if (need_inode_page_update(sbi, ino)) goto go_write; - } - f2fs_put_page(i, 0); if (is_inode_flag_set(fi, FI_UPDATE_WRITE) || exist_written_data(sbi, ino, UPDATE_INO)) -- 2.20.1