fs/ext4/extents.c

328 			   struct ext4_ext_path **ppath, ext4_lblk_t lblk,
338 	return ext4_split_extent_at(handle, inode, ppath, lblk, unwritten ?
389 				     ext4_lblk_t lblk, ext4_fsblk_t *pblk,
410 		    lblk != le32_to_cpu(ext->ee_block))
434 		    lblk != le32_to_cpu(ext_idx->ei_block))
456 			    int depth, ext4_fsblk_t pblk, ext4_lblk_t lblk)
486 	if (!ext4_valid_extent_entries(inode, eh, lblk, &pblk, depth)) {
532 		ext4_lblk_t lblk = le32_to_cpu(ex->ee_block);
535 		if (prev && (prev != lblk))
536 			ext4_es_cache_extent(inode, prev, lblk - prev, ~0,
541 		ext4_es_cache_extent(inode, lblk, len,
543 		prev = lblk + len;
2234  * @path:	path in extent tree to @lblk
2235  * @lblk:	pointer to logical block around which we want to determine hole
2239  * actually points to extent before @lblk, we provide it.
2241  * The function returns the length of a hole starting at @lblk. We update @lblk
2246 				      ext4_lblk_t *lblk)
2255 		*lblk = 0;
2257 	} else if (*lblk < le32_to_cpu(ex->ee_block)) {
2258 		len = le32_to_cpu(ex->ee_block) - *lblk;
2259 	} else if (*lblk >= le32_to_cpu(ex->ee_block)
2263 		*lblk = le32_to_cpu(ex->ee_block) + ext4_ext_get_actual_len(ex);
2265 		BUG_ON(next == *lblk);
2266 		len = next - *lblk;
2404  * @lblk - logical block in cluster to be reserved
2414 static void ext4_rereserve_cluster(struct inode *inode, ext4_lblk_t lblk)
2427 	ext4_remove_pending(inode, lblk);
2475 			if (ext4_is_pending(inode, partial->lblk))
2481 				ext4_rereserve_cluster(inode, partial->lblk);
2540 			partial->lblk = from;
2748 			if (ext4_is_pending(inode, partial->lblk))
2754 				ext4_rereserve_cluster(inode, partial->lblk);
2800 	partial.lblk = 0;
2824 		ext4_lblk_t ee_block, ex_end, lblk;
2892 			lblk = ex_end + 1;
2893 			err = ext4_ext_search_right(inode, path, &lblk, &pblk,
3017 		if (ext4_is_pending(inode, partial.lblk))
3023 			ext4_rereserve_cluster(inode, partial.lblk);
3944  *	@map	The requested lblk->pblk mapping
4050 						  ext4_lblk_t lblk)
4055 	hole_start = lblk;
4067 	if (lblk >= es.es_lblk + es.es_len) {
4072 		len -= lblk - hole_start;
4073 		hole_start = lblk;
4075 	} else if (in_range(lblk, es.es_lblk, es.es_len)) {
4077 		 * The delalloc extent containing lblk, it must have been
4083 		 * extent's after lblk.
4085 		len = es.es_lblk + es.es_len - lblk;
4101 	/* Update hole_len to reflect hole size after lblk */
4102 	if (hole_start != lblk)
4103 		len -= lblk - hole_start;
4373 			ext4_lblk_t lblk, len;
4387 			lblk = EXT4_LBLK_CMASK(sbi, map->m_lblk);
4389 			n = ext4_es_delayed_clu(inode, lblk, len);
4549 	ext4_lblk_t lblk;
4569 	lblk = start >> blkbits;
4571 	if (max_blocks < lblk)
4574 		max_blocks -= lblk;
4657 		ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
4715 	ext4_lblk_t lblk;
4760 	lblk = offset >> blkbits;
4791 	ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size, flags);
5874  * starting at lblk start and of len. If such an extent doesn't exist,