int dentry_needs_remove_privs(struct mnt_idmap *, struct dentry *dentry);
bool in_group_or_capable(struct mnt_idmap *idmap,
const struct inode *inode, vfsgid_t vfsgid);
-void lock_two_inodes(struct inode *inode1, struct inode *inode2,
- unsigned subclass1, unsigned subclass2);
/*
* fs-writeback.c