UBIFS: free budget in delete_inode as well

Although the inode is marked as clean when it is being deleted,
it might stay and be used as orphan, and be marked as dirty.
So we have to free the budget when we delete it.
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>

fs/ubifs/super.c

@@ -314,8 +314,9 @@ static void ubifs_delete_inode(struct inode *inode)
 {
 	int err;
 	struct ubifs_info *c = inode->i_sb->s_fs_info;
+	struct ubifs_inode *ui = ubifs_inode(inode);
 
-	if (ubifs_inode(inode)->xattr)
+	if (ui->xattr)
 		/*
 		 * Extended attribute inode deletions are fully handled in
 		 * 'ubifs_removexattr()'. These inodes are special and have
@@ -326,13 +327,12 @@ static void ubifs_delete_inode(struct inode *inode)
 	dbg_gen("inode %lu, mode %#x", inode->i_ino, (int)inode->i_mode);
 	ubifs_assert(!atomic_read(&inode->i_count));
 	ubifs_assert(inode->i_nlink == 0);
-	ubifs_assert(!ubifs_inode(inode)->dirty);
 
 	truncate_inode_pages(&inode->i_data, 0);
 	if (is_bad_inode(inode))
 		goto out;
 
-	ubifs_inode(inode)->ui_size = inode->i_size = 0;
+	ui->ui_size = inode->i_size = 0;
 	err = ubifs_jnl_write_inode(c, inode, 1);
 	if (err)
 		/*
@@ -341,6 +341,8 @@ static void ubifs_delete_inode(struct inode *inode)
 		 */
 		ubifs_err("can't write inode %lu, error %d", inode->i_ino, err);
 out:
+	if (ui->dirty)
+		ubifs_release_dirty_inode_budget(c, ui);
 	clear_inode(inode);
 }