ksmbd_inode_lookup_lock
p_ci = ksmbd_inode_lookup_lock(fp->filp->f_path.dentry->d_parent);
p_ci = ksmbd_inode_lookup_lock(fp->filp->f_path.dentry->d_parent);
ci = ksmbd_inode_lookup_lock(dentry);
struct ksmbd_inode *ksmbd_inode_lookup_lock(struct dentry *d);