fs/ext4/inode.c

422 	map->m_flags = 0;
443 	    es_map->m_flags != map->m_flags ||
449 		       es_map->m_pblk, es_map->m_flags, map->m_lblk,
450 		       map->m_len, map->m_pblk, map->m_flags,
491 	map->m_flags = 0;
511 			map->m_flags |= ext4_es_is_written(&es) ?
519 			map->m_flags |= ext4_es_is_delayed(&es) ?
566 		status = map->m_flags & EXT4_MAP_UNWRITTEN ?
579 	if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
595 	if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED)
605 	 * Here we clear m_flags because after allocating an new extent,
608 	map->m_flags &= ~EXT4_MAP_FLAGS;
627 		if (retval > 0 && map->m_flags & EXT4_MAP_NEW) {
656 		    map->m_flags & EXT4_MAP_MAPPED &&
657 		    map->m_flags & EXT4_MAP_NEW) {
675 		status = map->m_flags & EXT4_MAP_UNWRITTEN ?
688 	if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
698 		if (map->m_flags & EXT4_MAP_NEW &&
699 		    !(map->m_flags & EXT4_MAP_UNWRITTEN) &&
717 	if (retval > 0 && (map->m_flags & EXT4_MAP_UNWRITTEN ||
718 				map->m_flags & EXT4_MAP_MAPPED))
769 		ext4_update_bh_state(bh, map.m_flags);
846 	if (map.m_flags & EXT4_MAP_NEW) {
1534 	 * fully mapped. We somewhat abuse m_flags to store whether the extent
1702 	map->m_flags = 0;
1728 			map->m_flags |= EXT4_MAP_MAPPED;
1730 			map->m_flags |= EXT4_MAP_UNWRITTEN;
1766 		status = map->m_flags & EXT4_MAP_UNWRITTEN ?
1822 	ext4_update_bh_state(bh, map.m_flags);
1920 		map->m_flags = bh->b_state & BH_FLAGS;
1930 	    (bh->b_state & BH_FLAGS) == map->m_flags) {
2033 			mpd->map.m_flags = 0;
2124 	mpd->map.m_flags = 0;
2160 	if (map->m_flags & BIT(BH_Delay))
2166 	if (dioread_nolock && (map->m_flags & EXT4_MAP_UNWRITTEN)) {
3232 	if (map->m_flags & EXT4_MAP_NEW)
3242 	if ((map->m_flags & EXT4_MAP_MAPPED) &&
3248 	 * in m_flags having both EXT4_MAP_MAPPED and EXT4_MAP_UNWRITTEN bits
3255 	if (map->m_flags & EXT4_MAP_UNWRITTEN) {
3260 	} else if (map->m_flags & EXT4_MAP_MAPPED) {
3265 	} else if (map->m_flags & EXT4_MAP_DELAYED) {
3279 	int ret, dio_credits, m_flags = 0, retries = 0;
3306 		m_flags = EXT4_GET_BLOCKS_CREATE_ZERO;
3314 		m_flags = EXT4_GET_BLOCKS_CREATE;
3316 		m_flags = EXT4_GET_BLOCKS_IO_CREATE_EXT;
3318 	ret = ext4_map_blocks(handle, inode, map, m_flags);
3325 	if (!m_flags && !ret)
3365 			if (ret > 0 && (map.m_flags & EXT4_MAP_MAPPED))
3467 			map.m_flags = 0;