51 		 * that will stop further lookup in lower layers (d->stop=true)  in ovl_check_redirect()
53 		 * element and that should force continue lookup in lower  in ovl_check_redirect()
171 	 * Make sure that the stored uuid matches the uuid of the lower  in ovl_decode_real_fh()
186 		 * Treat stale file handle to lower file as "origin unknown".  in ovl_decode_real_fh()
385 	/* Only regular file is acceptable as lower data */  in ovl_lookup_data_layer()
429 		 * If lower fs uuid is not unique among lower fs we cannot match  in ovl_check_origin_fh()
601  * OVL_XATTR_ORIGIN and that origin file handle can be decoded to lower path.
721  * Lookup in indexdir for the index entry of a lower real inode or a copy up
722  * origin inode. The index entry name is the hex representation of the lower
725  * If the index dentry in negative, then either no lower aliases have been
825 		 * index should only exist if all lower aliases have been  in ovl_lookup_index()
826 		 * unlinked, which means that finding a lower origin on lookup  in ovl_lookup_index()
896 			  struct dentry *lower, struct dentry *upper)  in ovl_fix_origin()  argument
904 	fh = ovl_get_origin_fh(ofs, lower);  in ovl_fix_origin()
1083 			 * connected dentry, that is not under any of the lower  in ovl_lookup()
1086 			 * to a dentry in lower layer that was moved under us.  in ovl_lookup()
1116 		struct ovl_path lower = ovl_lowerstack(poe)[i];  in ovl_lookup()  local
1121 			d.last = lower.layer->idx == ovl_numlower(roe);  in ovl_lookup()
1123 		d.layer = lower.layer;  in ovl_lookup()
1124 		err = ovl_lookup_layer(lower.dentry, &d, &this, false);  in ovl_lookup()
1140 		 * of lower dir and set upper parent "impure".  in ovl_lookup()
1152 		 * lower dir that does not match a stored origin xattr. In any  in ovl_lookup()
1178 			 * lower chain, except top most lower metacopy dentry.  in ovl_lookup()
1186 			stack[ctr].layer = lower.layer;  in ovl_lookup()
1192 		 * a symlink into the lower layer without the permission checks.  in ovl_lookup()
1213 			i = lower.layer->idx - 1;  in ovl_lookup()
1224 	 * For regular non-metacopy upper dentries, there is no lower  in ovl_lookup()
1228 	 * For metacopy dentry, path based lookup will find lower dentries.  in ovl_lookup()
1232 		pr_warn_ratelimited("metacopy with no lower data found - abort lookup (%pd2)\n",  in ovl_lookup()
1253 	 * For directories, lookup index by lower inode and verify it matches  in ovl_lookup()
1254 	 * upper inode. We only trust dir index if we verified that lower dir  in ovl_lookup()
1260 	 * based dentry lookup in lower in this case.  in ovl_lookup()
1383 	 * If dentry is negative, then lower is positive iff this is a  in ovl_lower_positive()
1389 	/* Negative upper -> positive lower */  in ovl_lower_positive()
1394 	/* Positive upper -> have to look up lower to see whether it exists */  in ovl_lower_positive()