44 		 * that will stop further lookup in lower layers (d->stop=true)  in ovl_check_redirect()
46 		 * element and that should force continue lookup in lower  in ovl_check_redirect()
164 	 * Make sure that the stored uuid matches the uuid of the lower  in ovl_decode_real_fh()
178 		 * Treat stale file handle to lower file as "origin unknown".  in ovl_decode_real_fh()
361 		 * If lower fs uuid is not unique among lower fs we cannot match  in ovl_check_origin_fh()
520  * OVL_XATTR_ORIGIN and that origin file handle can be decoded to lower path.
640  * Lookup in indexdir for the index entry of a lower real inode or a copy up
641  * origin inode. The index entry name is the hex representation of the lower
644  * If the index dentry in negative, then either no lower aliases have been
744 		 * index should only exist if all lower aliases have been  in ovl_lookup_index()
745 		 * unlinked, which means that finding a lower origin on lookup  in ovl_lookup_index()
810 			  struct dentry *lower, struct dentry *upper)  in ovl_fix_origin()  argument
821 	err = ovl_set_origin(ofs, lower, upper);  in ovl_fix_origin()
882 			 * connected dentry, that is not under any of the lower  in ovl_lookup()
885 			 * to a dentry in lower layer that was moved under us.  in ovl_lookup()
915 		struct ovl_path lower = poe->lowerstack[i];  in ovl_lookup()  local
920 			d.last = lower.layer->idx == roe->numlower;  in ovl_lookup()
922 		d.mnt = lower.layer->mnt;  in ovl_lookup()
923 		err = ovl_lookup_layer(lower.dentry, &d, &this, false);  in ovl_lookup()
939 		 * of lower dir and set upper parent "impure".  in ovl_lookup()
951 		 * lower dir that does not match a stored origin xattr. In any  in ovl_lookup()
974 			 * lower chain, except top most lower metacopy dentry.  in ovl_lookup()
982 			stack[ctr].layer = lower.layer;  in ovl_lookup()
988 		 * a symlink into the lower layer without the permission checks.  in ovl_lookup()
1009 			i = lower.layer->idx - 1;  in ovl_lookup()
1014 	 * For regular non-metacopy upper dentries, there is no lower  in ovl_lookup()
1018 	 * For metacopy dentry, path based lookup will find lower dentries.  in ovl_lookup()
1022 		pr_warn_ratelimited("metacopy with no lower data found - abort lookup (%pd2)\n",  in ovl_lookup()
1043 	 * For directories, lookup index by lower inode and verify it matches  in ovl_lookup()
1044 	 * upper inode. We only trust dir index if we verified that lower dir  in ovl_lookup()
1050 	 * based dentry lookup in lower in this case.  in ovl_lookup()
1163 	 * If dentry is negative, then lower is positive iff this is a  in ovl_lower_positive()
1169 	/* Negative upper -> positive lower */  in ovl_lower_positive()
1174 	/* Positive upper -> have to look up lower to see whether it exists */  in ovl_lower_positive()