tracefs_get_inode
inode = tracefs_get_inode(dentry->d_sb);
inode = tracefs_get_inode(dentry->d_sb);
inode = tracefs_get_inode(dentry->d_sb);
inode = tracefs_get_inode(dentry->d_sb);
struct inode *tracefs_get_inode(struct super_block *sb);