__d_lookup_rcu 2530 fs/dcache.c dentry = __d_lookup_rcu(parent, name, &d_seq); __d_lookup_rcu 1564 fs/namei.c dentry = __d_lookup_rcu(parent, &nd->last, &seq); __d_lookup_rcu 281 include/linux/dcache.h extern struct dentry *__d_lookup_rcu(const struct dentry *parent,