104 				    struct btrfs_block_rsv *dest, u64 num_bytes,  in block_rsv_release_bytes()  argument
112 	if (num_bytes == (u64)-1) {  in block_rsv_release_bytes()
113 		num_bytes = block_rsv->size;  in block_rsv_release_bytes()
116 	block_rsv->size -= num_bytes;  in block_rsv_release_bytes()
118 		num_bytes = block_rsv->reserved - block_rsv->size;  in block_rsv_release_bytes()
122 		num_bytes = 0;  in block_rsv_release_bytes()
133 	ret = num_bytes;  in block_rsv_release_bytes()
134 	if (num_bytes > 0) {  in block_rsv_release_bytes()
141 				bytes_to_add = min(num_bytes, bytes_to_add);  in block_rsv_release_bytes()
145 				num_bytes -= bytes_to_add;  in block_rsv_release_bytes()
149 		if (num_bytes)  in block_rsv_release_bytes()
152 							    num_bytes);  in block_rsv_release_bytes()
160 			    struct btrfs_block_rsv *dst, u64 num_bytes,  in btrfs_block_rsv_migrate()  argument
165 	ret = btrfs_block_rsv_use_bytes(src, num_bytes);  in btrfs_block_rsv_migrate()
169 	btrfs_block_rsv_add_bytes(dst, num_bytes, update_size);  in btrfs_block_rsv_migrate()
212 			struct btrfs_block_rsv *block_rsv, u64 num_bytes,  in btrfs_block_rsv_add()  argument
217 	if (num_bytes == 0)  in btrfs_block_rsv_add()
220 	ret = btrfs_reserve_metadata_bytes(root, block_rsv, num_bytes, flush);  in btrfs_block_rsv_add()
222 		btrfs_block_rsv_add_bytes(block_rsv, num_bytes, true);  in btrfs_block_rsv_add()
229 	u64 num_bytes = 0;  in btrfs_block_rsv_check()  local
236 	num_bytes = div_factor(block_rsv->size, min_factor);  in btrfs_block_rsv_check()
237 	if (block_rsv->reserved >= num_bytes)  in btrfs_block_rsv_check()
248 	u64 num_bytes = 0;  in btrfs_block_rsv_refill()  local
255 	num_bytes = min_reserved;  in btrfs_block_rsv_refill()
256 	if (block_rsv->reserved >= num_bytes)  in btrfs_block_rsv_refill()
259 		num_bytes -= block_rsv->reserved;  in btrfs_block_rsv_refill()
265 	ret = btrfs_reserve_metadata_bytes(root, block_rsv, num_bytes, flush);  in btrfs_block_rsv_refill()
267 		btrfs_block_rsv_add_bytes(block_rsv, num_bytes, false);  in btrfs_block_rsv_refill()
275 			    struct btrfs_block_rsv *block_rsv, u64 num_bytes,  in btrfs_block_rsv_release()  argument
294 	return block_rsv_release_bytes(fs_info, block_rsv, target, num_bytes,  in btrfs_block_rsv_release()
298 int btrfs_block_rsv_use_bytes(struct btrfs_block_rsv *block_rsv, u64 num_bytes)  in btrfs_block_rsv_use_bytes()  argument
303 	if (block_rsv->reserved >= num_bytes) {  in btrfs_block_rsv_use_bytes()
304 		block_rsv->reserved -= num_bytes;  in btrfs_block_rsv_use_bytes()
314 			       u64 num_bytes, bool update_size)  in btrfs_block_rsv_add_bytes()  argument
317 	block_rsv->reserved += num_bytes;  in btrfs_block_rsv_add_bytes()
319 		block_rsv->size += num_bytes;  in btrfs_block_rsv_add_bytes()
326 			     struct btrfs_block_rsv *dest, u64 num_bytes,  in btrfs_cond_migrate_bytes()  argument
337 	if (global_rsv->reserved < min_bytes + num_bytes) {  in btrfs_cond_migrate_bytes()
341 	global_rsv->reserved -= num_bytes;  in btrfs_cond_migrate_bytes()
346 	btrfs_block_rsv_add_bytes(dest, num_bytes, true);  in btrfs_cond_migrate_bytes()
354 	u64 num_bytes;  in btrfs_update_global_block_rsv()  local
362 	num_bytes = btrfs_root_used(&fs_info->extent_root->root_item) +  in btrfs_update_global_block_rsv()
383 	num_bytes = max_t(u64, num_bytes,  in btrfs_update_global_block_rsv()
389 	block_rsv->size = min_t(u64, num_bytes, SZ_512M);  in btrfs_update_global_block_rsv()
392 		num_bytes = block_rsv->size - block_rsv->reserved;  in btrfs_update_global_block_rsv()
394 						      num_bytes);  in btrfs_update_global_block_rsv()
397 		num_bytes = block_rsv->reserved - block_rsv->size;  in btrfs_update_global_block_rsv()
399 						      -num_bytes);  in btrfs_update_global_block_rsv()