281 	struct btrfs_block_group *bg;  in btrfs_inc_nocow_writers()  local
284 	bg = btrfs_lookup_block_group(fs_info, bytenr);  in btrfs_inc_nocow_writers()
285 	if (!bg)  in btrfs_inc_nocow_writers()
288 	spin_lock(&bg->lock);  in btrfs_inc_nocow_writers()
289 	if (bg->ro)  in btrfs_inc_nocow_writers()
292 		atomic_inc(&bg->nocow_writers);  in btrfs_inc_nocow_writers()
293 	spin_unlock(&bg->lock);  in btrfs_inc_nocow_writers()
297 		btrfs_put_block_group(bg);  in btrfs_inc_nocow_writers()
304 	struct btrfs_block_group *bg;  in btrfs_dec_nocow_writers()  local
306 	bg = btrfs_lookup_block_group(fs_info, bytenr);  in btrfs_dec_nocow_writers()
307 	ASSERT(bg);  in btrfs_dec_nocow_writers()
308 	if (atomic_dec_and_test(&bg->nocow_writers))  in btrfs_dec_nocow_writers()
309 		wake_up_var(&bg->nocow_writers);  in btrfs_dec_nocow_writers()
314 	btrfs_put_block_group(bg);  in btrfs_dec_nocow_writers()
315 	btrfs_put_block_group(bg);  in btrfs_dec_nocow_writers()
318 void btrfs_wait_nocow_writers(struct btrfs_block_group *bg)  in btrfs_wait_nocow_writers()  argument
320 	wait_var_event(&bg->nocow_writers, !atomic_read(&bg->nocow_writers));  in btrfs_wait_nocow_writers()
326 	struct btrfs_block_group *bg;  in btrfs_dec_block_group_reservations()  local
328 	bg = btrfs_lookup_block_group(fs_info, start);  in btrfs_dec_block_group_reservations()
329 	ASSERT(bg);  in btrfs_dec_block_group_reservations()
330 	if (atomic_dec_and_test(&bg->reservations))  in btrfs_dec_block_group_reservations()
331 		wake_up_var(&bg->reservations);  in btrfs_dec_block_group_reservations()
332 	btrfs_put_block_group(bg);  in btrfs_dec_block_group_reservations()
335 void btrfs_wait_block_group_reservations(struct btrfs_block_group *bg)  in btrfs_wait_block_group_reservations()  argument
337 	struct btrfs_space_info *space_info = bg->space_info;  in btrfs_wait_block_group_reservations()
339 	ASSERT(bg->ro);  in btrfs_wait_block_group_reservations()
341 	if (!(bg->flags & BTRFS_BLOCK_GROUP_DATA))  in btrfs_wait_block_group_reservations()
357 	wait_var_event(&bg->reservations, !atomic_read(&bg->reservations));  in btrfs_wait_block_group_reservations()
1290 				 struct btrfs_block_group *bg)  in clean_pinned_extents()  argument
1292 	struct btrfs_fs_info *fs_info = bg->fs_info;  in clean_pinned_extents()
1294 	const u64 start = bg->start;  in clean_pinned_extents()
1295 	const u64 end = start + bg->length - 1;  in clean_pinned_extents()
1527 void btrfs_mark_bg_unused(struct btrfs_block_group *bg)  in btrfs_mark_bg_unused()  argument
1529 	struct btrfs_fs_info *fs_info = bg->fs_info;  in btrfs_mark_bg_unused()
1532 	if (list_empty(&bg->bg_list)) {  in btrfs_mark_bg_unused()
1533 		btrfs_get_block_group(bg);  in btrfs_mark_bg_unused()
1534 		trace_btrfs_add_unused_block_group(bg);  in btrfs_mark_bg_unused()
1535 		list_add_tail(&bg->bg_list, &fs_info->unused_bgs);  in btrfs_mark_bg_unused()
1545 	struct btrfs_block_group_item bg;  in read_bg_from_eb()  local
1573 	read_extent_buffer(leaf, &bg, btrfs_item_ptr_offset(leaf, slot),  in read_bg_from_eb()
1574 			   sizeof(bg));  in read_bg_from_eb()
1575 	flags = btrfs_stack_block_group_flags(&bg) &  in read_bg_from_eb()
1835 	struct btrfs_block_group *bg;  in check_chunk_block_group_mappings()  local
1851 		bg = btrfs_lookup_block_group(fs_info, em->start);  in check_chunk_block_group_mappings()
1852 		if (!bg) {  in check_chunk_block_group_mappings()
1860 		if (bg->start != em->start || bg->length != em->len ||  in check_chunk_block_group_mappings()
1861 		    (bg->flags & BTRFS_BLOCK_GROUP_TYPE_MASK) !=  in check_chunk_block_group_mappings()
1867 				bg->start, bg->length,  in check_chunk_block_group_mappings()
1868 				bg->flags & BTRFS_BLOCK_GROUP_TYPE_MASK);  in check_chunk_block_group_mappings()
1871 			btrfs_put_block_group(bg);  in check_chunk_block_group_mappings()
1876 		btrfs_put_block_group(bg);  in check_chunk_block_group_mappings()
3438 bool btrfs_inc_block_group_swap_extents(struct btrfs_block_group *bg)  in btrfs_inc_block_group_swap_extents()  argument
3442 	spin_lock(&bg->lock);  in btrfs_inc_block_group_swap_extents()
3443 	if (bg->ro)  in btrfs_inc_block_group_swap_extents()
3446 		bg->swap_extents++;  in btrfs_inc_block_group_swap_extents()
3447 	spin_unlock(&bg->lock);  in btrfs_inc_block_group_swap_extents()
3452 void btrfs_dec_block_group_swap_extents(struct btrfs_block_group *bg, int amount)  in btrfs_dec_block_group_swap_extents()  argument
3454 	spin_lock(&bg->lock);  in btrfs_dec_block_group_swap_extents()
3455 	ASSERT(!bg->ro);  in btrfs_dec_block_group_swap_extents()
3456 	ASSERT(bg->swap_extents >= amount);  in btrfs_dec_block_group_swap_extents()
3457 	bg->swap_extents -= amount;  in btrfs_dec_block_group_swap_extents()
3458 	spin_unlock(&bg->lock);  in btrfs_dec_block_group_swap_extents()