485 struct async_chunk {  struct
499 	struct async_chunk chunks[];  argument
502 static noinline int add_async_extent(struct async_chunk *cow,  in add_async_extent()
612 static noinline int compress_file_range(struct async_chunk *async_chunk)  in compress_file_range()  argument
614 	struct inode *inode = async_chunk->inode;  in compress_file_range()
617 	u64 start = async_chunk->start;  in compress_file_range()
618 	u64 end = async_chunk->end;  in compress_file_range()
835 			add_async_extent(async_chunk, start, total_in,  in compress_file_range()
875 	if (async_chunk->locked_page &&  in compress_file_range()
876 	    (page_offset(async_chunk->locked_page) >= start &&  in compress_file_range()
877 	     page_offset(async_chunk->locked_page)) <= end) {  in compress_file_range()
878 		__set_page_dirty_nobuffers(async_chunk->locked_page);  in compress_file_range()
884 	add_async_extent(async_chunk, start, end - start + 1, 0, NULL, 0,  in compress_file_range()
955 				   struct async_chunk *async_chunk,  in submit_one_async_extent()  argument
973 	if (async_chunk->locked_page) {  in submit_one_async_extent()
974 		u64 locked_page_start = page_offset(async_chunk->locked_page);  in submit_one_async_extent()
978 			locked_page = async_chunk->locked_page;  in submit_one_async_extent()
1042 			    async_chunk->write_flags,  in submit_one_async_extent()
1043 			    async_chunk->blkcg_css, true)) {  in submit_one_async_extent()
1077 static noinline void submit_compressed_extents(struct async_chunk *async_chunk)  in submit_compressed_extents()  argument
1079 	struct btrfs_inode *inode = BTRFS_I(async_chunk->inode);  in submit_compressed_extents()
1085 	while (!list_empty(&async_chunk->extents)) {  in submit_compressed_extents()
1089 		async_extent = list_entry(async_chunk->extents.next,  in submit_compressed_extents()
1095 		ret = submit_one_async_extent(inode, async_chunk, async_extent,  in submit_compressed_extents()
1453 	struct async_chunk *async_chunk;  in async_cow_start()  local
1456 	async_chunk = container_of(work, struct async_chunk, work);  in async_cow_start()
1458 	compressed_extents = compress_file_range(async_chunk);  in async_cow_start()
1460 		btrfs_add_delayed_iput(async_chunk->inode);  in async_cow_start()
1461 		async_chunk->inode = NULL;  in async_cow_start()
1470 	struct async_chunk *async_chunk = container_of(work, struct async_chunk,  in async_cow_submit()  local
1475 	nr_pages = (async_chunk->end - async_chunk->start + PAGE_SIZE) >>  in async_cow_submit()
1484 	if (async_chunk->inode)  in async_cow_submit()
1485 		submit_compressed_extents(async_chunk);  in async_cow_submit()
1495 	struct async_chunk *async_chunk;  in async_cow_free()  local
1498 	async_chunk = container_of(work, struct async_chunk, work);  in async_cow_free()
1499 	if (async_chunk->inode)  in async_cow_free()
1500 		btrfs_add_delayed_iput(async_chunk->inode);  in async_cow_free()
1501 	if (async_chunk->blkcg_css)  in async_cow_free()
1502 		css_put(async_chunk->blkcg_css);  in async_cow_free()
1504 	async_cow = async_chunk->async_cow;  in async_cow_free()
1518 	struct async_chunk *async_chunk;  in cow_file_range_async()  local
1553 	async_chunk = ctx->chunks;  in cow_file_range_async()
1567 		async_chunk[i].async_cow = ctx;  in cow_file_range_async()
1568 		async_chunk[i].inode = &inode->vfs_inode;  in cow_file_range_async()
1569 		async_chunk[i].start = start;  in cow_file_range_async()
1570 		async_chunk[i].end = cur_end;  in cow_file_range_async()
1571 		async_chunk[i].write_flags = write_flags;  in cow_file_range_async()
1572 		INIT_LIST_HEAD(&async_chunk[i].extents);  in cow_file_range_async()
1595 			async_chunk[i].locked_page = locked_page;  in cow_file_range_async()
1598 			async_chunk[i].locked_page = NULL;  in cow_file_range_async()
1603 			async_chunk[i].blkcg_css = blkcg_css;  in cow_file_range_async()
1605 			async_chunk[i].blkcg_css = NULL;  in cow_file_range_async()
1608 		btrfs_init_work(&async_chunk[i].work, async_cow_start,  in cow_file_range_async()
1614 		btrfs_queue_work(fs_info->delalloc_workers, &async_chunk[i].work);  in cow_file_range_async()