fs/btrfs/inode.c

141 				       u64 len, u64 orig_start, u64 block_start,
1204 			  ins.objectid,			/* block_start */
1282 		if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
1285 			if (em && em->block_start < EXTENT_MAP_LAST_BYTE)
1286 				alloc_hint = em->block_start;
1290 			alloc_hint = em->block_start;
1440 				  ins.objectid, /* block_start */
2169 					  nocow_args.disk_bytenr, /* block_start */
2684 		if (em->block_start != EXTENT_MAP_HOLE)
3242 		 * writepage where we do ASSERT(em->block_start !=
4728 	u64 block_start;
4735 	block_start = round_down(from, blocksize);
4736 	block_end = block_start + blocksize - 1;
4738 	ret = btrfs_check_data_free_space(inode, &data_reserved, block_start,
4741 		if (btrfs_check_nocow_lock(inode, block_start, &write_bytes, false) > 0) {
4752 						       block_start, blocksize);
4759 		btrfs_delalloc_release_space(inode, data_reserved, block_start,
4792 	lock_extent(io_tree, block_start, block_end, &cached_state);
4794 	ordered = btrfs_lookup_ordered_extent(inode, block_start);
4796 		unlock_extent(io_tree, block_start, block_end, &cached_state);
4804 	clear_extent_bit(&inode->io_tree, block_start, block_end,
4808 	ret = btrfs_set_extent_delalloc(inode, block_start, block_end, 0,
4811 		unlock_extent(io_tree, block_start, block_end, &cached_state);
4819 			folio_zero_range(folio, block_start - folio_pos(folio),
4823 					 (block_start - folio_pos(folio)) + offset,
4826 	btrfs_folio_clear_checked(fs_info, folio, block_start,
4827 				  block_end + 1 - block_start);
4828 	btrfs_folio_set_dirty(fs_info, folio, block_start,
4829 			      block_end + 1 - block_start);
4830 	unlock_extent(io_tree, block_start, block_end, &cached_state);
4833 		set_extent_bit(&inode->io_tree, block_start, block_end,
4842 					block_start, blocksize, true);
4972 			hole_em->block_start = EXTENT_MAP_HOLE;
6821 		else if (em->block_start == EXTENT_MAP_INLINE && page)
6926 		em->block_start = EXTENT_MAP_HOLE;
6950 		ASSERT(em->block_start == EXTENT_MAP_INLINE);
6962 	em->block_start = EXTENT_MAP_HOLE;
6994 						  const u64 block_start,
7004 		em = create_io_em(inode, start, len, orig_start, block_start,
7012 					     block_start, block_len, 0,
7294 				       u64 len, u64 orig_start, u64 block_start,
7353 	em->block_start = block_start;
7382 	u64 block_start, orig_start, orig_block_len, ram_bytes;
7401 	     em->block_start != EXTENT_MAP_HOLE)) {
7407 		block_start = em->block_start + (start - em->start);
7411 			bg = btrfs_inc_nocow_writers(fs_info, block_start);
7436 					      orig_start, block_start,
7638 	    em->block_start == EXTENT_MAP_INLINE) {
7732 	if ((em->block_start == EXTENT_MAP_HOLE) ||
7737 		iomap->addr = em->block_start + (start - em->start);
9591 		em->block_start = ins.objectid;
10056 	if (em->block_start == EXTENT_MAP_INLINE) {
10077 	if (em->block_start == EXTENT_MAP_HOLE ||
10084 		disk_bytenr = em->block_start;
10103 		disk_bytenr = em->block_start + (start - em->start);
10472 	u64 block_start;
10497 	first_ppage = PAGE_ALIGN(bsi->block_start) >> PAGE_SHIFT;
10498 	next_ppage = PAGE_ALIGN_DOWN(bsi->block_start + bsi->block_len) >> PAGE_SHIFT;
10638 		if (em->block_start == EXTENT_MAP_HOLE) {
10643 		if (em->block_start == EXTENT_MAP_INLINE) {
10661 		logical_block_start = em->block_start + (start - em->start);
10739 		    bsi.block_start + bsi.block_len == physical_block_start) {
10748 			bsi.block_start = physical_block_start;