pd_dentry 457 fs/nfs/super.c struct dentry *pd_dentry; pd_dentry 459 fs/nfs/super.c pd_dentry = dget_parent(dentry); pd_dentry 460 fs/nfs/super.c nfs_zap_caches(d_inode(pd_dentry)); pd_dentry 461 fs/nfs/super.c dput(pd_dentry);