354 struct async_extent {  struct
388 	struct async_extent *async_extent;  in add_async_extent()  local
390 	async_extent = kmalloc(sizeof(*async_extent), GFP_NOFS);  in add_async_extent()
391 	BUG_ON(!async_extent); /* -ENOMEM */  in add_async_extent()
392 	async_extent->start = start;  in add_async_extent()
393 	async_extent->ram_size = ram_size;  in add_async_extent()
394 	async_extent->compressed_size = compressed_size;  in add_async_extent()
395 	async_extent->pages = pages;  in add_async_extent()
396 	async_extent->nr_pages = nr_pages;  in add_async_extent()
397 	async_extent->compress_type = compress_type;  in add_async_extent()
398 	list_add_tail(&async_extent->list, &cow->extents);  in add_async_extent()
729 static void free_async_extent_pages(struct async_extent *async_extent)  in free_async_extent_pages()  argument
733 	if (!async_extent->pages)  in free_async_extent_pages()
736 	for (i = 0; i < async_extent->nr_pages; i++) {  in free_async_extent_pages()
737 		WARN_ON(async_extent->pages[i]->mapping);  in free_async_extent_pages()
738 		put_page(async_extent->pages[i]);  in free_async_extent_pages()
740 	kfree(async_extent->pages);  in free_async_extent_pages()
741 	async_extent->nr_pages = 0;  in free_async_extent_pages()
742 	async_extent->pages = NULL;  in free_async_extent_pages()
755 	struct async_extent *async_extent;  in submit_compressed_extents()  local
765 		async_extent = list_entry(async_chunk->extents.next,  in submit_compressed_extents()
766 					  struct async_extent, list);  in submit_compressed_extents()
767 		list_del(&async_extent->list);  in submit_compressed_extents()
770 		lock_extent(io_tree, async_extent->start,  in submit_compressed_extents()
771 			    async_extent->start + async_extent->ram_size - 1);  in submit_compressed_extents()
773 		if (!async_extent->pages) {  in submit_compressed_extents()
779 					     async_extent->start,  in submit_compressed_extents()
780 					     async_extent->start +  in submit_compressed_extents()
781 					     async_extent->ram_size - 1,  in submit_compressed_extents()
794 						  async_extent->start,  in submit_compressed_extents()
795 						  async_extent->start +  in submit_compressed_extents()
796 						  async_extent->ram_size - 1,  in submit_compressed_extents()
800 			kfree(async_extent);  in submit_compressed_extents()
805 		ret = btrfs_reserve_extent(root, async_extent->ram_size,  in submit_compressed_extents()
806 					   async_extent->compressed_size,  in submit_compressed_extents()
807 					   async_extent->compressed_size,  in submit_compressed_extents()
810 			free_async_extent_pages(async_extent);  in submit_compressed_extents()
813 				unlock_extent(io_tree, async_extent->start,  in submit_compressed_extents()
814 					      async_extent->start +  in submit_compressed_extents()
815 					      async_extent->ram_size - 1);  in submit_compressed_extents()
824 						async_extent->start,  in submit_compressed_extents()
825 						async_extent->start +  in submit_compressed_extents()
826 						async_extent->ram_size - 1);  in submit_compressed_extents()
836 		em = create_io_em(inode, async_extent->start,  in submit_compressed_extents()
837 				  async_extent->ram_size, /* len */  in submit_compressed_extents()
838 				  async_extent->start, /* orig_start */  in submit_compressed_extents()
842 				  async_extent->ram_size, /* ram_bytes */  in submit_compressed_extents()
843 				  async_extent->compress_type,  in submit_compressed_extents()
851 						async_extent->start,  in submit_compressed_extents()
853 						async_extent->ram_size,  in submit_compressed_extents()
856 						async_extent->compress_type);  in submit_compressed_extents()
859 						async_extent->start,  in submit_compressed_extents()
860 						async_extent->start +  in submit_compressed_extents()
861 						async_extent->ram_size - 1, 0);  in submit_compressed_extents()
869 		extent_clear_unlock_delalloc(inode, async_extent->start,  in submit_compressed_extents()
870 				async_extent->start +  in submit_compressed_extents()
871 				async_extent->ram_size - 1,  in submit_compressed_extents()
876 				    async_extent->start,  in submit_compressed_extents()
877 				    async_extent->ram_size,  in submit_compressed_extents()
879 				    ins.offset, async_extent->pages,  in submit_compressed_extents()
880 				    async_extent->nr_pages,  in submit_compressed_extents()
882 			struct page *p = async_extent->pages[0];  in submit_compressed_extents()
883 			const u64 start = async_extent->start;  in submit_compressed_extents()
884 			const u64 end = start + async_extent->ram_size - 1;  in submit_compressed_extents()
894 			free_async_extent_pages(async_extent);  in submit_compressed_extents()
897 		kfree(async_extent);  in submit_compressed_extents()
905 	extent_clear_unlock_delalloc(inode, async_extent->start,  in submit_compressed_extents()
906 				     async_extent->start +  in submit_compressed_extents()
907 				     async_extent->ram_size - 1,  in submit_compressed_extents()
914 	free_async_extent_pages(async_extent);  in submit_compressed_extents()
915 	kfree(async_extent);  in submit_compressed_extents()