235 static int ovl_set_opaque_xerr(struct dentry *dentry, struct dentry *upper,  in ovl_set_opaque_xerr()  argument
241 	err = ovl_check_setxattr(ofs, upper, OVL_XATTR_OPAQUE, "y", 1, xerr);  in ovl_set_opaque_xerr()
251 	 * Fail with -EIO when trying to create opaque dir and upper doesn't  in ovl_set_opaque()
259  * Common operations required to be done after creation of file on upper.
307 	/* Force lookup of new upper hardlink to find its lower */  in ovl_instantiate()
371 	struct dentry *upper;  in ovl_clear_empty()  local
392 	upper = upperpath.dentry;  in ovl_clear_empty()
393 	if (upper->d_parent->d_inode != udir)  in ovl_clear_empty()
415 	err = ovl_do_rename(ofs, wdir, opaquedir, udir, upper, RENAME_EXCHANGE);  in ovl_clear_empty()
419 	ovl_cleanup_whiteouts(ofs, upper, list);  in ovl_clear_empty()
420 	ovl_cleanup(ofs, wdir, upper);  in ovl_clear_empty()
423 	/* dentry's upper doesn't match now, get rid of it */  in ovl_clear_empty()
454 	struct dentry *upper;  in ovl_create_over_whiteout()  local
474 	upper = ovl_lookup_upper(ofs, dentry->d_name.name, upperdir,  in ovl_create_over_whiteout()
476 	err = PTR_ERR(upper);  in ovl_create_over_whiteout()
477 	if (IS_ERR(upper))  in ovl_create_over_whiteout()
481 	if (d_is_negative(upper) || !ovl_upper_is_whiteout(ofs, upper))  in ovl_create_over_whiteout()
522 		err = ovl_do_rename(ofs, wdir, newdentry, udir, upper,  in ovl_create_over_whiteout()
527 		ovl_cleanup(ofs, wdir, upper);  in ovl_create_over_whiteout()
529 		err = ovl_do_rename(ofs, wdir, newdentry, udir, upper, 0);  in ovl_create_over_whiteout()
540 	dput(upper);  in ovl_create_over_whiteout()
749 static bool ovl_matches_upper(struct dentry *dentry, struct dentry *upper)  in ovl_matches_upper()  argument
751 	return d_inode(ovl_dentry_upper(dentry)) == d_inode(upper);  in ovl_matches_upper()
760 	struct dentry *upper;  in ovl_remove_and_whiteout()  local
778 	upper = ovl_lookup_upper(ofs, dentry->d_name.name, upperdir,  in ovl_remove_and_whiteout()
780 	err = PTR_ERR(upper);  in ovl_remove_and_whiteout()
781 	if (IS_ERR(upper))  in ovl_remove_and_whiteout()
785 	if ((opaquedir && upper != opaquedir) ||  in ovl_remove_and_whiteout()
787 	     !ovl_matches_upper(dentry, upper))) {  in ovl_remove_and_whiteout()
791 	err = ovl_cleanup_and_whiteout(ofs, d_inode(upperdir), upper);  in ovl_remove_and_whiteout()
799 	dput(upper);  in ovl_remove_and_whiteout()
814 	struct dentry *upper;  in ovl_remove_upper()  local
826 	upper = ovl_lookup_upper(ofs, dentry->d_name.name, upperdir,  in ovl_remove_upper()
828 	err = PTR_ERR(upper);  in ovl_remove_upper()
829 	if (IS_ERR(upper))  in ovl_remove_upper()
833 	if ((opaquedir && upper != opaquedir) ||  in ovl_remove_upper()
834 	    (!opaquedir && !ovl_matches_upper(dentry, upper)))  in ovl_remove_upper()
838 		err = ovl_do_rmdir(ofs, dir, upper);  in ovl_remove_upper()
840 		err = ovl_do_unlink(ofs, dir, upper);  in ovl_remove_upper()
852 	dput(upper);  in ovl_remove_upper()
895 	/* No need to clean pure upper removed by vfs_rmdir() */  in ovl_do_remove()
1033 	 * in general as two upper hardlinks could be in different  in ovl_need_absolute_redirect()
1180 		 * When ovl_iterate() iterates an "impure" upper dir, it will  in ovl_rename()