[PATCH] f2fs: recover directory operations by fsync

[Jaegeuk Kim <jaegeuk@kernel.org>]

This fixes generic/342 which doesn't recover renamed file which was fsynced
before. It will be done via another fsync on newly created file.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/dir.c   | 2 ++
 fs/f2fs/f2fs.h  | 2 ++
 fs/f2fs/file.c  | 3 +++
 fs/f2fs/namei.c | 4 ++++
 4 files changed, 11 insertions(+)

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 724304dc6143..f00b5ed8c011 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -713,6 +713,8 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
 
 	f2fs_update_time(F2FS_I_SB(dir), REQ_TIME);
 
+	add_ino_entry(F2FS_I_SB(dir), dir->i_ino, TRANS_DIR_INO);
+
 	if (f2fs_has_inline_dentry(dir))
 		return f2fs_delete_inline_entry(dentry, page, dir, inode);
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 398ed95d4036..b32eacf11270 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -181,6 +181,7 @@ enum {
 	ORPHAN_INO,		/* for orphan ino list */
 	APPEND_INO,		/* for append ino list */
 	UPDATE_INO,		/* for update ino list */
+	TRANS_DIR_INO,		/* for trasactions dir ino list */
 	FLUSH_INO,		/* for multiple device flushing */
 	MAX_INO_ENTRY,		/* max. list */
 };
@@ -930,6 +931,7 @@ enum cp_reason_type {
 	CP_NODE_NEED_CP,
 	CP_FASTBOOT_MODE,
 	CP_SPEC_LOG_NUM,
+	CP_RECOVER_DIR,
 };
 
 enum iostat_type {
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 5a3b9a07d72d..66a51e9fbe83 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -165,6 +165,9 @@ static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
 		cp_reason = CP_FASTBOOT_MODE;
 	else if (sbi->active_logs == 2)
 		cp_reason = CP_SPEC_LOG_NUM;
+	else if (need_dentry_mark(sbi, inode->i_ino) &&
+		exist_written_data(sbi, F2FS_I(inode)->i_pino, TRANS_DIR_INO))
+		cp_reason = CP_RECOVER_DIR;
 
 	return cp_reason;
 }
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index e3a0f4f65851..a885c6e659f8 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -935,6 +935,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		}
 		f2fs_i_links_write(old_dir, false);
 	}
+	add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
 
 	f2fs_unlock_op(sbi);
 
@@ -1089,6 +1090,9 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
 	}
 	f2fs_mark_inode_dirty_sync(new_dir, false);
 
+	add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO);
+	add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
+
 	f2fs_unlock_op(sbi);
 
 	if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
-- 
2.15.0.531.g2ccb3012c9-goog