f2fs: call update_inode_page for orphan inodes

Let's store orphan inode pages right away.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/checkpoint.c

@@ -508,10 +508,11 @@ void release_orphan_inode(struct f2fs_sb_info *sbi)
 	spin_unlock(&im->ino_lock);
 }
 
-void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
+void add_orphan_inode(struct inode *inode)
 {
 	/* add new orphan ino entry into list */
-	__add_ino_entry(sbi, ino, ORPHAN_INO);
+	__add_ino_entry(F2FS_I_SB(inode), inode->i_ino, ORPHAN_INO);
+	update_inode_page(inode);
 }
 
 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
@@ -535,7 +536,6 @@ static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 	}
 
 	clear_nlink(inode);
-	mark_inode_dirty_sync(inode);
 
 	/* truncate all the data during iput */
 	iput(inode);

fs/f2fs/dir.c

@@ -666,7 +666,7 @@ void f2fs_drop_nlink(struct inode *dir, struct inode *inode)
 	up_write(&F2FS_I(inode)->i_sem);
 
 	if (inode->i_nlink == 0)
-		add_orphan_inode(sbi, inode->i_ino);
+		add_orphan_inode(inode);
 	else
 		release_orphan_inode(sbi);
 }

fs/f2fs/f2fs.h

@@ -2040,7 +2040,7 @@ bool exist_written_data(struct f2fs_sb_info *, nid_t, int);
 int f2fs_sync_inode_meta(struct f2fs_sb_info *);
 int acquire_orphan_inode(struct f2fs_sb_info *);
 void release_orphan_inode(struct f2fs_sb_info *);
-void add_orphan_inode(struct f2fs_sb_info *, nid_t);
+void add_orphan_inode(struct inode *);
 void remove_orphan_inode(struct f2fs_sb_info *, nid_t);
 int recover_orphan_inodes(struct f2fs_sb_info *);
 int get_valid_checkpoint(struct f2fs_sb_info *);

fs/f2fs/inode.c

@@ -393,8 +393,6 @@ void f2fs_evict_inode(struct inode *inode)
 		!exist_written_data(sbi, inode->i_ino, ORPHAN_INO));
 out_clear:
 	fscrypt_put_encryption_info(inode, NULL);
-
-	f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
 	clear_inode(inode);
 }
 
@@ -421,7 +419,7 @@ void handle_failed_inode(struct inode *inode)
 			f2fs_msg(sbi->sb, KERN_WARNING,
 				"Too many orphan inodes, run fsck to fix.");
 		} else {
-			add_orphan_inode(sbi, inode->i_ino);
+			add_orphan_inode(inode);
 		}
 		alloc_nid_done(sbi, inode->i_ino);
 	} else {

fs/f2fs/namei.c

@@ -598,7 +598,7 @@ static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry,
 	 * add this non-linked tmpfile to orphan list, in this way we could
 	 * remove all unused data of tmpfile after abnormal power-off.
 	 */
-	add_orphan_inode(sbi, inode->i_ino);
+	add_orphan_inode(inode);
 	alloc_nid_done(sbi, inode->i_ino);
 
 	if (whiteout) {
@@ -712,7 +712,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		up_write(&F2FS_I(new_inode)->i_sem);
 
 		if (!new_inode->i_nlink)
-			add_orphan_inode(sbi, new_inode->i_ino);
+			add_orphan_inode(new_inode);
 		else
 			release_orphan_inode(sbi);
 	} else {

fs/f2fs/super.c

@@ -585,8 +585,6 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
 
 static int f2fs_drop_inode(struct inode *inode)
 {
-	int ret;
-
 	/*
 	 * This is to avoid a deadlock condition like below.
 	 * writeback_single_inode(inode)
@@ -622,19 +620,7 @@ static int f2fs_drop_inode(struct inode *inode)
 		return 0;
 	}
 
-	ret = generic_drop_inode(inode);
-	if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
-		if (ret)
-			inode->i_state |= I_WILL_FREE;
-		spin_unlock(&inode->i_lock);
-
-		update_inode_page(inode);
-
-		spin_lock(&inode->i_lock);
-		if (ret)
-			inode->i_state &= ~I_WILL_FREE;
-	}
-	return ret;
+	return generic_drop_inode(inode);
 }
 
 /*