109 static inline int ocfs2_block_group_reasonably_empty(struct ocfs2_group_desc *bg,
324 					  struct ocfs2_group_desc *bg,  in ocfs2_bg_discontig_add_extent()  argument
328 	struct ocfs2_extent_list *el = &bg->bg_list;  in ocfs2_bg_discontig_add_extent()
336 	rec->e_cpos = cpu_to_le32(le16_to_cpu(bg->bg_bits) /  in ocfs2_bg_discontig_add_extent()
339 	le16_add_cpu(&bg->bg_bits, clusters * le16_to_cpu(cl->cl_bpc));  in ocfs2_bg_discontig_add_extent()
340 	le16_add_cpu(&bg->bg_free_bits_count,  in ocfs2_bg_discontig_add_extent()
355 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_block_group_fill()  local
375 	memset(bg, 0, sb->s_blocksize);  in ocfs2_block_group_fill()
376 	strscpy(bg->bg_signature, OCFS2_GROUP_DESC_SIGNATURE);  in ocfs2_block_group_fill()
377 	bg->bg_generation = cpu_to_le32(osb->fs_generation);  in ocfs2_block_group_fill()
378 	bg->bg_size = cpu_to_le16(ocfs2_group_bitmap_size(sb, 1,  in ocfs2_block_group_fill()
380 	bg->bg_chain = cpu_to_le16(my_chain);  in ocfs2_block_group_fill()
381 	bg->bg_next_group = cl->cl_recs[my_chain].c_blkno;  in ocfs2_block_group_fill()
382 	bg->bg_parent_dinode = cpu_to_le64(OCFS2_I(alloc_inode)->ip_blkno);  in ocfs2_block_group_fill()
383 	bg->bg_blkno = cpu_to_le64(group_blkno);  in ocfs2_block_group_fill()
385 		bg->bg_bits = cpu_to_le16(ocfs2_bits_per_group(cl));  in ocfs2_block_group_fill()
387 		ocfs2_bg_discontig_add_extent(osb, bg, cl, group_blkno,  in ocfs2_block_group_fill()
391 	ocfs2_set_bit(0, (unsigned long *)bg->bg_bitmap);  in ocfs2_block_group_fill()
392 	bg->bg_free_bits_count = cpu_to_le16(le16_to_cpu(bg->bg_bits) - 1);  in ocfs2_block_group_fill()
495 	struct ocfs2_group_desc *bg =  in ocfs2_block_group_grow_discontig()  local
498 			 le16_to_cpu(bg->bg_bits) / le16_to_cpu(cl->cl_bpc);  in ocfs2_block_group_grow_discontig()
501 	struct ocfs2_extent_list *el = &bg->bg_list;  in ocfs2_block_group_grow_discontig()
525 		ocfs2_bg_discontig_add_extent(osb, bg, cl, p_blkno,  in ocfs2_block_group_grow_discontig()
530 			 le16_to_cpu(bg->bg_bits) / le16_to_cpu(cl->cl_bpc);  in ocfs2_block_group_grow_discontig()
554 	struct ocfs2_group_desc *bg;  in ocfs2_bg_alloc_cleanup()  local
561 	bg = (struct ocfs2_group_desc *)bg_bh->b_data;  in ocfs2_bg_alloc_cleanup()
562 	el = &bg->bg_list;  in ocfs2_bg_alloc_cleanup()
670 	struct ocfs2_group_desc *bg;  in ocfs2_block_group_alloc()  local
715 	bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_block_group_alloc()
724 	alloc_rec = le16_to_cpu(bg->bg_chain);  in ocfs2_block_group_alloc()
726 		     le16_to_cpu(bg->bg_free_bits_count));  in ocfs2_block_group_alloc()
728 		     le16_to_cpu(bg->bg_bits));  in ocfs2_block_group_alloc()
729 	cl->cl_recs[alloc_rec].c_blkno = bg->bg_blkno;  in ocfs2_block_group_alloc()
733 	le32_add_cpu(&fe->id1.bitmap1.i_used, le16_to_cpu(bg->bg_bits) -  in ocfs2_block_group_alloc()
734 					le16_to_cpu(bg->bg_free_bits_count));  in ocfs2_block_group_alloc()
735 	le32_add_cpu(&fe->id1.bitmap1.i_total, le16_to_cpu(bg->bg_bits));  in ocfs2_block_group_alloc()
1259 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_test_bg_bit_allocatable()  local
1263 	if (ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap))  in ocfs2_test_bg_bit_allocatable()
1271 	bg = (struct ocfs2_group_desc *) jh->b_committed_data;  in ocfs2_test_bg_bit_allocatable()
1272 	if (bg)  in ocfs2_test_bg_bit_allocatable()
1273 		ret = !ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap);  in ocfs2_test_bg_bit_allocatable()
1312 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_block_group_find_clear_bits()  local
1316 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));  in ocfs2_block_group_find_clear_bits()
1319 	bitmap = bg->bg_bitmap;  in ocfs2_block_group_find_clear_bits()
1366 					     struct ocfs2_group_desc *bg,  in ocfs2_block_group_set_bits()  argument
1374 	void *bitmap = bg->bg_bitmap;  in ocfs2_block_group_set_bits()
1382 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));  in ocfs2_block_group_set_bits()
1383 	BUG_ON(le16_to_cpu(bg->bg_free_bits_count) < num_bits);  in ocfs2_block_group_set_bits()
1399 	le16_add_cpu(&bg->bg_free_bits_count, -num_bits);  in ocfs2_block_group_set_bits()
1400 	if (le16_to_cpu(bg->bg_free_bits_count) > le16_to_cpu(bg->bg_bits)) {  in ocfs2_block_group_set_bits()
1402 				   (unsigned long long)le64_to_cpu(bg->bg_blkno),  in ocfs2_block_group_set_bits()
1403 				   le16_to_cpu(bg->bg_bits),  in ocfs2_block_group_set_bits()
1404 				   le16_to_cpu(bg->bg_free_bits_count),  in ocfs2_block_group_set_bits()
1415 		bg->bg_contig_free_bits = cpu_to_le16(max_contig_bits);  in ocfs2_block_group_set_bits()
1424 				    le16_to_cpu(bg->bg_bits), start);  in ocfs2_block_group_set_bits()
1427 		bg->bg_contig_free_bits = cpu_to_le16(max_contig_bits);  in ocfs2_block_group_set_bits()
1430 		bg->bg_contig_free_bits = 0;  in ocfs2_block_group_set_bits()
1470 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_relink_block_group()  local
1475 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));  in ocfs2_relink_block_group()
1480 		(unsigned long long)le64_to_cpu(bg->bg_blkno),  in ocfs2_relink_block_group()
1483 	bg_ptr = le64_to_cpu(bg->bg_next_group);  in ocfs2_relink_block_group()
1492 	prev_bg->bg_next_group = bg->bg_next_group;  in ocfs2_relink_block_group()
1500 	bg->bg_next_group = fe->id2.i_chain.cl_recs[chain].c_blkno;  in ocfs2_relink_block_group()
1508 	fe->id2.i_chain.cl_recs[chain].c_blkno = bg->bg_blkno;  in ocfs2_relink_block_group()
1517 	bg->bg_next_group = cpu_to_le64(bg_ptr);  in ocfs2_relink_block_group()
1523 static inline int ocfs2_block_group_reasonably_empty(struct ocfs2_group_desc *bg,  in ocfs2_block_group_reasonably_empty()  argument
1526 	return le16_to_cpu(bg->bg_free_bits_count) > wanted;  in ocfs2_block_group_reasonably_empty()
1608 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) group_bh->b_data;  in ocfs2_block_group_search()  local
1613 	if (le16_to_cpu(bg->bg_free_bits_count) >= bits_wanted) {  in ocfs2_block_group_search()
1616 							le16_to_cpu(bg->bg_bits),  in ocfs2_block_group_search()
1619 			blkoff = le64_to_cpu(bg->bg_blkno) +  in ocfs2_block_group_search()
1694 					  struct ocfs2_group_desc *bg,  in ocfs2_bg_discontig_fix_result()  argument
1711 	    !bg->bg_list.l_next_free_rec)  in ocfs2_bg_discontig_fix_result()
1714 	for (i = 0; i < le16_to_cpu(bg->bg_list.l_next_free_rec); i++) {  in ocfs2_bg_discontig_fix_result()
1715 		rec = &bg->bg_list.l_recs[i];  in ocfs2_bg_discontig_fix_result()
1807 	struct ocfs2_group_desc *bg;  in ocfs2_search_chain()  local
1821 	bg = (struct ocfs2_group_desc *) group_bh->b_data;  in ocfs2_search_chain()
1828 			contig_bits = le16_to_cpu(bg->bg_contig_free_bits);  in ocfs2_search_chain()
1830 				contig_bits = ocfs2_find_max_contig_free_bits(bg->bg_bitmap,  in ocfs2_search_chain()
1831 						le16_to_cpu(bg->bg_bits), 0);  in ocfs2_search_chain()
1841 		if (!bg->bg_next_group)  in ocfs2_search_chain()
1847 		next_group = le64_to_cpu(bg->bg_next_group);  in ocfs2_search_chain()
1856 		bg = (struct ocfs2_group_desc *) group_bh->b_data;  in ocfs2_search_chain()
1865 		(unsigned long long)le64_to_cpu(bg->bg_blkno), res->sr_bits);  in ocfs2_search_chain()
1867 	res->sr_bg_blkno = le64_to_cpu(bg->bg_blkno);  in ocfs2_search_chain()
1871 		ocfs2_bg_discontig_fix_result(ac, bg, res);  in ocfs2_search_chain()
1894 	    (ocfs2_block_group_reasonably_empty(bg, res->sr_bits))) {  in ocfs2_search_chain()
1917 					    bg,  in ocfs2_search_chain()
1935 	*bits_left = le16_to_cpu(bg->bg_free_bits_count);  in ocfs2_search_chain()
2223 	struct ocfs2_group_desc *bg;  in ocfs2_claim_new_inode_at_loc()  local
2241 	bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_claim_new_inode_at_loc()
2242 	chain = le16_to_cpu(bg->bg_chain);  in ocfs2_claim_new_inode_at_loc()
2254 					 bg,  in ocfs2_claim_new_inode_at_loc()
2475 					struct ocfs2_group_desc *bg,  in ocfs2_block_group_clear_bits()  argument
2491 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));  in ocfs2_block_group_clear_bits()
2516 				(unsigned long *) bg->bg_bitmap);  in ocfs2_block_group_clear_bits()
2521 	le16_add_cpu(&bg->bg_free_bits_count, num_bits);  in ocfs2_block_group_clear_bits()
2522 	if (le16_to_cpu(bg->bg_free_bits_count) > le16_to_cpu(bg->bg_bits)) {  in ocfs2_block_group_clear_bits()
2526 				   (unsigned long long)le64_to_cpu(bg->bg_blkno),  in ocfs2_block_group_clear_bits()
2527 				   le16_to_cpu(bg->bg_bits),  in ocfs2_block_group_clear_bits()
2528 				   le16_to_cpu(bg->bg_free_bits_count),  in ocfs2_block_group_clear_bits()
2537 		contig_bits = ocfs2_find_max_contig_free_bits(bg->bg_bitmap,  in ocfs2_block_group_clear_bits()
2538 				    le16_to_cpu(bg->bg_bits), 0);  in ocfs2_block_group_clear_bits()
2541 		bg->bg_contig_free_bits = cpu_to_le16(max_contig_bits);  in ocfs2_block_group_clear_bits()
2543 		bg->bg_contig_free_bits = 0;  in ocfs2_block_group_clear_bits()