209 static int ovl_set_opaque_xerr(struct dentry *dentry, struct dentry *upper,  in ovl_set_opaque_xerr()  argument
214 	err = ovl_check_setxattr(dentry, upper, OVL_XATTR_OPAQUE, "y", 1, xerr);  in ovl_set_opaque_xerr()
224 	 * Fail with -EIO when trying to create opaque dir and upper doesn't  in ovl_set_opaque()
232  * Common operations required to be done after creation of file on upper.
274 	/* Force lookup of new upper hardlink to find its lower */  in ovl_instantiate()
338 	struct dentry *upper;  in ovl_clear_empty()  local
359 	upper = upperpath.dentry;  in ovl_clear_empty()
360 	if (upper->d_parent->d_inode != udir)  in ovl_clear_empty()
368 	err = ovl_copy_xattr(upper, opaquedir);  in ovl_clear_empty()
382 	err = ovl_do_rename(wdir, opaquedir, udir, upper, RENAME_EXCHANGE);  in ovl_clear_empty()
386 	ovl_cleanup_whiteouts(upper, list);  in ovl_clear_empty()
387 	ovl_cleanup(wdir, upper);  in ovl_clear_empty()
390 	/* dentry's upper doesn't match now, get rid of it */  in ovl_clear_empty()
436 	struct dentry *upper;  in ovl_create_over_whiteout()  local
456 	upper = lookup_one_len(dentry->d_name.name, upperdir,  in ovl_create_over_whiteout()
458 	err = PTR_ERR(upper);  in ovl_create_over_whiteout()
459 	if (IS_ERR(upper))  in ovl_create_over_whiteout()
463 	if (d_is_negative(upper) || !IS_WHITEOUT(d_inode(upper)))  in ovl_create_over_whiteout()
504 		err = ovl_do_rename(wdir, newdentry, udir, upper,  in ovl_create_over_whiteout()
509 		ovl_cleanup(wdir, upper);  in ovl_create_over_whiteout()
511 		err = ovl_do_rename(wdir, newdentry, udir, upper, 0);  in ovl_create_over_whiteout()
519 	dput(upper);  in ovl_create_over_whiteout()
707 static bool ovl_matches_upper(struct dentry *dentry, struct dentry *upper)  in ovl_matches_upper()  argument
709 	return d_inode(ovl_dentry_upper(dentry)) == d_inode(upper);  in ovl_matches_upper()
717 	struct dentry *upper;  in ovl_remove_and_whiteout()  local
735 	upper = lookup_one_len(dentry->d_name.name, upperdir,  in ovl_remove_and_whiteout()
737 	err = PTR_ERR(upper);  in ovl_remove_and_whiteout()
738 	if (IS_ERR(upper))  in ovl_remove_and_whiteout()
742 	if ((opaquedir && upper != opaquedir) ||  in ovl_remove_and_whiteout()
744 	     !ovl_matches_upper(dentry, upper))) {  in ovl_remove_and_whiteout()
748 	err = ovl_cleanup_and_whiteout(workdir, d_inode(upperdir), upper);  in ovl_remove_and_whiteout()
756 	dput(upper);  in ovl_remove_and_whiteout()
770 	struct dentry *upper;  in ovl_remove_upper()  local
782 	upper = lookup_one_len(dentry->d_name.name, upperdir,  in ovl_remove_upper()
784 	err = PTR_ERR(upper);  in ovl_remove_upper()
785 	if (IS_ERR(upper))  in ovl_remove_upper()
789 	if ((opaquedir && upper != opaquedir) ||  in ovl_remove_upper()
790 	    (!opaquedir && !ovl_matches_upper(dentry, upper)))  in ovl_remove_upper()
794 		err = vfs_rmdir(dir, upper);  in ovl_remove_upper()
796 		err = vfs_unlink(dir, upper, NULL);  in ovl_remove_upper()
808 	dput(upper);  in ovl_remove_upper()
830 	/* No need to clean pure upper removed by vfs_rmdir() */  in ovl_do_remove()
975 	 * in general as two upper hardlinks could be in different  in ovl_need_absolute_redirect()
1117 		 * When ovl_iterate() iterates an "impure" upper dir, it will  in ovl_rename()