37  * to check if it will be possible to reconnect an overlay dentry from the real
38  * lower decoded dentry. This is done by following the overlay ancestry up to a
47  * The overlay dentry /a is NOT "layer 2 connectable", because if dir /a is
50  * in ovl_lookup_real_ancestor() will not be able to lookup a connected overlay
58  * a connected overlay dentry will be accomplished.
76 	/* We can get overlay root from root of any layer */  in ovl_connectable_layer()
88 	/* We can get upper/overlay path from indexed/lower dentry */  in ovl_connectable_layer()
157  * file handle. Overlay root dentry is a private case of non-indexed upper.
160  * different overlay object types:
172  * (*) Decoding a connected overlay dir from real lower dentry is not always
292  * Find or instantiate an overlay dentry from real dentries and index.
307 	/* We get overlay directory dentries with ovl_lookup_real() */  in ovl_obtain_alias()
353  * Lookup a child overlay dentry to get a connected overlay dentry whose real
354  * dentry is @real. If @real is on upper layer, we lookup a child overlay
368 	 * Lookup child overlay dentry by real name. The dir mutex protects us  in ovl_lookup_real_one()
369 	 * from racing with overlay rename. If the overlay dentry that is above  in ovl_lookup_real_one()
371 	 * connected overlay dir, we return -ECHILD and restart the lookup of  in ovl_lookup_real_one()
424  * Lookup an indexed or hashed overlay dentry by real inode.
437 	 * overlay dentry in inode/dcache.  in ovl_lookup_real_inode()
457 	/* Get connected upper overlay dir from index */  in ovl_lookup_real_inode()
488  * Lookup an indexed or hashed overlay dentry, whose real dentry is an
507 		 * Lookup a matching overlay dentry in inode/dentry  in ovl_lookup_real_ancestor()
522 		 * by legit overlay rename, so we return error in that case.  in ovl_lookup_real_ancestor()
540  * Lookup a connected overlay dentry whose real dentry is @real.
541  * If @real is on upper layer, we lookup a child overlay dentry with the same
589 			 * This cannot happen by legit overlay rename, so we  in ovl_lookup_real()
607 			 * Lookup of child in overlay can fail when racing with  in ovl_lookup_real()
608 			 * overlay rename of child away from 'connected' parent.  in ovl_lookup_real()
612 			 * that the renamed overlay ancestor is now in cache, so  in ovl_lookup_real()
644  * Get an overlay dentry from upper/lower real dentries and index.
656 	 * Obtain a disconnected overlay dentry from a non-dir real dentry  in ovl_get_dentry()
667 	 * If real dentry is connected and hashed, get a connected overlay  in ovl_get_dentry()
704 	/* First lookup overlay inode in inode cache by origin fh */  in ovl_lower_fh_to_d()
847 	 * ovl_fh_to_dentry() returns connected dir overlay dentries and  in ovl_get_name()
857 	 * ovl_fh_to_dentry() returns connected dir overlay dentries, so we  in ovl_get_parent()