82 static inline void ocfs2_debug_bg(struct ocfs2_group_desc *bg);
122 static inline int ocfs2_block_group_reasonably_empty(struct ocfs2_group_desc *bg,
337 					  struct ocfs2_group_desc *bg,  in ocfs2_bg_discontig_add_extent()  argument
341 	struct ocfs2_extent_list *el = &bg->bg_list;  in ocfs2_bg_discontig_add_extent()
349 	rec->e_cpos = cpu_to_le32(le16_to_cpu(bg->bg_bits) /  in ocfs2_bg_discontig_add_extent()
352 	le16_add_cpu(&bg->bg_bits, clusters * le16_to_cpu(cl->cl_bpc));  in ocfs2_bg_discontig_add_extent()
353 	le16_add_cpu(&bg->bg_free_bits_count,  in ocfs2_bg_discontig_add_extent()
368 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_block_group_fill()  local
388 	memset(bg, 0, sb->s_blocksize);  in ocfs2_block_group_fill()
389 	strcpy(bg->bg_signature, OCFS2_GROUP_DESC_SIGNATURE);  in ocfs2_block_group_fill()
390 	bg->bg_generation = cpu_to_le32(OCFS2_SB(sb)->fs_generation);  in ocfs2_block_group_fill()
391 	bg->bg_size = cpu_to_le16(ocfs2_group_bitmap_size(sb, 1,  in ocfs2_block_group_fill()
393 	bg->bg_chain = cpu_to_le16(my_chain);  in ocfs2_block_group_fill()
394 	bg->bg_next_group = cl->cl_recs[my_chain].c_blkno;  in ocfs2_block_group_fill()
395 	bg->bg_parent_dinode = cpu_to_le64(OCFS2_I(alloc_inode)->ip_blkno);  in ocfs2_block_group_fill()
396 	bg->bg_blkno = cpu_to_le64(group_blkno);  in ocfs2_block_group_fill()
398 		bg->bg_bits = cpu_to_le16(ocfs2_bits_per_group(cl));  in ocfs2_block_group_fill()
400 		ocfs2_bg_discontig_add_extent(osb, bg, cl, group_blkno,  in ocfs2_block_group_fill()
404 	ocfs2_set_bit(0, (unsigned long *)bg->bg_bitmap);  in ocfs2_block_group_fill()
405 	bg->bg_free_bits_count = cpu_to_le16(le16_to_cpu(bg->bg_bits) - 1);  in ocfs2_block_group_fill()
508 	struct ocfs2_group_desc *bg =  in ocfs2_block_group_grow_discontig()  local
511 			 le16_to_cpu(bg->bg_bits) / le16_to_cpu(cl->cl_bpc);  in ocfs2_block_group_grow_discontig()
514 	struct ocfs2_extent_list *el = &bg->bg_list;  in ocfs2_block_group_grow_discontig()
538 		ocfs2_bg_discontig_add_extent(osb, bg, cl, p_blkno,  in ocfs2_block_group_grow_discontig()
543 			 le16_to_cpu(bg->bg_bits) / le16_to_cpu(cl->cl_bpc);  in ocfs2_block_group_grow_discontig()
567 	struct ocfs2_group_desc *bg;  in ocfs2_bg_alloc_cleanup()  local
574 	bg = (struct ocfs2_group_desc *)bg_bh->b_data;  in ocfs2_bg_alloc_cleanup()
575 	el = &bg->bg_list;  in ocfs2_bg_alloc_cleanup()
683 	struct ocfs2_group_desc *bg;  in ocfs2_block_group_alloc()  local
726 	bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_block_group_alloc()
735 	alloc_rec = le16_to_cpu(bg->bg_chain);  in ocfs2_block_group_alloc()
737 		     le16_to_cpu(bg->bg_free_bits_count));  in ocfs2_block_group_alloc()
739 		     le16_to_cpu(bg->bg_bits));  in ocfs2_block_group_alloc()
740 	cl->cl_recs[alloc_rec].c_blkno = bg->bg_blkno;  in ocfs2_block_group_alloc()
744 	le32_add_cpu(&fe->id1.bitmap1.i_used, le16_to_cpu(bg->bg_bits) -  in ocfs2_block_group_alloc()
745 					le16_to_cpu(bg->bg_free_bits_count));  in ocfs2_block_group_alloc()
746 	le32_add_cpu(&fe->id1.bitmap1.i_total, le16_to_cpu(bg->bg_bits));  in ocfs2_block_group_alloc()
1245 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_test_bg_bit_allocatable()  local
1248 	if (ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap))  in ocfs2_test_bg_bit_allocatable()
1255 	bg = (struct ocfs2_group_desc *) bh2jh(bg_bh)->b_committed_data;  in ocfs2_test_bg_bit_allocatable()
1256 	if (bg)  in ocfs2_test_bg_bit_allocatable()
1257 		ret = !ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap);  in ocfs2_test_bg_bit_allocatable()
1274 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_block_group_find_clear_bits()  local
1278 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));  in ocfs2_block_group_find_clear_bits()
1281 	bitmap = bg->bg_bitmap;  in ocfs2_block_group_find_clear_bits()
1327 					     struct ocfs2_group_desc *bg,  in ocfs2_block_group_set_bits()  argument
1333 	void *bitmap = bg->bg_bitmap;  in ocfs2_block_group_set_bits()
1338 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));  in ocfs2_block_group_set_bits()
1339 	BUG_ON(le16_to_cpu(bg->bg_free_bits_count) < num_bits);  in ocfs2_block_group_set_bits()
1355 	le16_add_cpu(&bg->bg_free_bits_count, -num_bits);  in ocfs2_block_group_set_bits()
1356 	if (le16_to_cpu(bg->bg_free_bits_count) > le16_to_cpu(bg->bg_bits)) {  in ocfs2_block_group_set_bits()
1358 				   (unsigned long long)le64_to_cpu(bg->bg_blkno),  in ocfs2_block_group_set_bits()
1359 				   le16_to_cpu(bg->bg_bits),  in ocfs2_block_group_set_bits()
1360 				   le16_to_cpu(bg->bg_free_bits_count),  in ocfs2_block_group_set_bits()
1403 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_relink_block_group()  local
1408 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));  in ocfs2_relink_block_group()
1413 		(unsigned long long)le64_to_cpu(bg->bg_blkno),  in ocfs2_relink_block_group()
1416 	bg_ptr = le64_to_cpu(bg->bg_next_group);  in ocfs2_relink_block_group()
1425 	prev_bg->bg_next_group = bg->bg_next_group;  in ocfs2_relink_block_group()
1433 	bg->bg_next_group = fe->id2.i_chain.cl_recs[chain].c_blkno;  in ocfs2_relink_block_group()
1441 	fe->id2.i_chain.cl_recs[chain].c_blkno = bg->bg_blkno;  in ocfs2_relink_block_group()
1450 	bg->bg_next_group = cpu_to_le64(bg_ptr);  in ocfs2_relink_block_group()
1456 static inline int ocfs2_block_group_reasonably_empty(struct ocfs2_group_desc *bg,  in ocfs2_block_group_reasonably_empty()  argument
1459 	return le16_to_cpu(bg->bg_free_bits_count) > wanted;  in ocfs2_block_group_reasonably_empty()
1543 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) group_bh->b_data;  in ocfs2_block_group_search()  local
1548 	if (bg->bg_free_bits_count) {  in ocfs2_block_group_search()
1551 							le16_to_cpu(bg->bg_bits),  in ocfs2_block_group_search()
1554 			blkoff = le64_to_cpu(bg->bg_blkno) +  in ocfs2_block_group_search()
1629 					  struct ocfs2_group_desc *bg,  in ocfs2_bg_discontig_fix_result()  argument
1646 	    !bg->bg_list.l_next_free_rec)  in ocfs2_bg_discontig_fix_result()
1649 	for (i = 0; i < le16_to_cpu(bg->bg_list.l_next_free_rec); i++) {  in ocfs2_bg_discontig_fix_result()
1650 		rec = &bg->bg_list.l_recs[i];  in ocfs2_bg_discontig_fix_result()
1740 	struct ocfs2_group_desc *bg;  in ocfs2_search_chain()  local
1754 	bg = (struct ocfs2_group_desc *) group_bh->b_data;  in ocfs2_search_chain()
1763 		if (!bg->bg_next_group)  in ocfs2_search_chain()
1769 		next_group = le64_to_cpu(bg->bg_next_group);  in ocfs2_search_chain()
1778 		bg = (struct ocfs2_group_desc *) group_bh->b_data;  in ocfs2_search_chain()
1787 		(unsigned long long)le64_to_cpu(bg->bg_blkno), res->sr_bits);  in ocfs2_search_chain()
1789 	res->sr_bg_blkno = le64_to_cpu(bg->bg_blkno);  in ocfs2_search_chain()
1793 		ocfs2_bg_discontig_fix_result(ac, bg, res);  in ocfs2_search_chain()
1816 	    (ocfs2_block_group_reasonably_empty(bg, res->sr_bits))) {  in ocfs2_search_chain()
1839 					    bg,  in ocfs2_search_chain()
1855 	*bits_left = le16_to_cpu(bg->bg_free_bits_count);  in ocfs2_search_chain()
2122 	struct ocfs2_group_desc *bg;  in ocfs2_claim_new_inode_at_loc()  local
2140 	bg = (struct ocfs2_group_desc *) bg_bh->b_data;  in ocfs2_claim_new_inode_at_loc()
2141 	chain = le16_to_cpu(bg->bg_chain);  in ocfs2_claim_new_inode_at_loc()
2153 					 bg,  in ocfs2_claim_new_inode_at_loc()
2371 					struct ocfs2_group_desc *bg,  in ocfs2_block_group_clear_bits()  argument
2384 	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));  in ocfs2_block_group_clear_bits()
2409 				(unsigned long *) bg->bg_bitmap);  in ocfs2_block_group_clear_bits()
2414 	le16_add_cpu(&bg->bg_free_bits_count, num_bits);  in ocfs2_block_group_clear_bits()
2415 	if (le16_to_cpu(bg->bg_free_bits_count) > le16_to_cpu(bg->bg_bits)) {  in ocfs2_block_group_clear_bits()
2417 				   (unsigned long long)le64_to_cpu(bg->bg_blkno),  in ocfs2_block_group_clear_bits()
2418 				   le16_to_cpu(bg->bg_bits),  in ocfs2_block_group_clear_bits()
2419 				   le16_to_cpu(bg->bg_free_bits_count),  in ocfs2_block_group_clear_bits()
2602 static inline void ocfs2_debug_bg(struct ocfs2_group_desc *bg)  in ocfs2_debug_bg()  argument
2605 	printk("bg_signature:       %s\n", bg->bg_signature);  in ocfs2_debug_bg()
2606 	printk("bg_size:            %u\n", bg->bg_size);  in ocfs2_debug_bg()
2607 	printk("bg_bits:            %u\n", bg->bg_bits);  in ocfs2_debug_bg()
2608 	printk("bg_free_bits_count: %u\n", bg->bg_free_bits_count);  in ocfs2_debug_bg()
2609 	printk("bg_chain:           %u\n", bg->bg_chain);  in ocfs2_debug_bg()
2610 	printk("bg_generation:      %u\n", le32_to_cpu(bg->bg_generation));  in ocfs2_debug_bg()
2612 	       (unsigned long long)bg->bg_next_group);  in ocfs2_debug_bg()
2614 	       (unsigned long long)bg->bg_parent_dinode);  in ocfs2_debug_bg()
2616 	       (unsigned long long)bg->bg_blkno);  in ocfs2_debug_bg()