190 	 * We cannot set immutable and append-only flags on upper inode,  in ovl_copy_fileattr()
191 	 * because we would not be able to link upper inode to upper dir  in ovl_copy_fileattr()
192 	 * not set overlay private xattr on upper inode.  in ovl_copy_fileattr()
198 			pr_warn_once("copying fileattr: no xattr on upper\n");  in ovl_copy_fileattr()
210 		 * Returning an error if upper doesn't support fileattr will  in ovl_copy_fileattr()
214 			pr_warn_once("copying fileattr: no support on upper\n");  in ovl_copy_fileattr()
217 		pr_warn("failed to retrieve upper fileattr (%pd2, err=%i)\n",  in ovl_copy_fileattr()
311 		 * We do not hold upper sb_writers throughout the loop to avert  in ovl_copy_up_file()
313 		 * - upper sb_writers  in ovl_copy_up_file()
462 	 * up and a pure upper inode.  in ovl_get_origin_fh()
471 		      struct dentry *upper)  in ovl_set_origin_fh()  argument
476 	 * Do not fail when upper doesn't support xattrs.  in ovl_set_origin_fh()
478 	err = ovl_check_setxattr(ofs, upper, OVL_XATTR_ORIGIN, fh->buf,  in ovl_set_origin_fh()
485 /* Store file handle of @upper dir in @index dir entry */
486 static int ovl_set_upper_fh(struct ovl_fs *ofs, struct dentry *upper,  in ovl_set_upper_fh()  argument
492 	fh = ovl_encode_real_fh(ofs, upper, true);  in ovl_set_upper_fh()
508 			    struct dentry *upper)  in ovl_create_index()  argument
521 	 * to upper dir.  in ovl_create_index()
542 	err = ovl_set_upper_fh(ofs, upper, temp);  in ovl_create_index()
582 	struct dentry *upper;  in ovl_link_up()  local
589 	/* Mark parent "impure" because it may now contain non-pure upper */  in ovl_link_up()
599 	upper = ovl_lookup_upper(ofs, c->dentry->d_name.name, upperdir,  in ovl_link_up()
601 	err = PTR_ERR(upper);  in ovl_link_up()
602 	if (!IS_ERR(upper)) {  in ovl_link_up()
603 		err = ovl_do_link(ofs, ovl_dentry_upper(c->dentry), udir, upper);  in ovl_link_up()
604 		dput(upper);  in ovl_link_up()
610 			ovl_dentry_update_reval(c->dentry, upper);  in ovl_link_up()
666 	 * Store identifier of lower inode in upper inode xattr to  in ovl_copy_up_metadata()
737  * special files or when upper fs doesn't support O_TMPFILE.
745 	struct dentry *temp, *upper, *trap;  in ovl_copy_up_workdir()  local
804 	upper = ovl_lookup_upper(ofs, c->destname.name, c->destdir,  in ovl_copy_up_workdir()
806 	err = PTR_ERR(upper);  in ovl_copy_up_workdir()
807 	if (IS_ERR(upper))  in ovl_copy_up_workdir()
810 	err = ovl_do_rename(ofs, wdir, temp, udir, upper, 0);  in ovl_copy_up_workdir()
811 	dput(upper);  in ovl_copy_up_workdir()
845 	struct dentry *temp, *upper;  in ovl_copy_up_tmpfile()  local
876 	upper = ovl_lookup_upper(ofs, c->destname.name, c->destdir,  in ovl_copy_up_tmpfile()
878 	err = PTR_ERR(upper);  in ovl_copy_up_tmpfile()
879 	if (!IS_ERR(upper)) {  in ovl_copy_up_tmpfile()
880 		err = ovl_do_link(ofs, temp, udir, upper);  in ovl_copy_up_tmpfile()
881 		dput(upper);  in ovl_copy_up_tmpfile()
910  * upper parent i_mutex for exclusion.  Since rename can change d_parent it
924 	 * hardlinked to upper dir. Indexed dir is copied up to indexdir,  in ovl_do_copy_up()
958 		 * because if we got here, it means that c->dentry has no upper  in ovl_do_copy_up()
965 		 * upper  in ovl_do_copy_up()
1088 	 * Writing to upper file will clear security.capability xattr. We  in ovl_copy_up_meta_inode_data()
1189 	 * linking it to upper dir.  in ovl_copy_up_flags()
1235 	/* Copy up of disconnected dentry does not set upper alias */  in ovl_open_need_copy_up()