WHITEOUT_DEV
init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
if (WARN_ON(dev == WHITEOUT_DEV)) {
init_special_inode(wh, wh->i_mode, WHITEOUT_DEV);
init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
bool is_whiteout = S_ISCHR(mode) && dev == WHITEOUT_DEV;
if (S_ISCHR(mode) && rdev == WHITEOUT_DEV)
init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
if (S_ISCHR(mode) && dev == WHITEOUT_DEV)
WHITEOUT_DEV, NULL);
(inode)->i_rdev == WHITEOUT_DEV)
S_IFCHR | WHITEOUT_MODE, WHITEOUT_DEV);