475 struct async_extent {  struct
509 	struct async_extent *async_extent;  in add_async_extent()  local
511 	async_extent = kmalloc(sizeof(*async_extent), GFP_NOFS);  in add_async_extent()
512 	BUG_ON(!async_extent); /* -ENOMEM */  in add_async_extent()
513 	async_extent->start = start;  in add_async_extent()
514 	async_extent->ram_size = ram_size;  in add_async_extent()
515 	async_extent->compressed_size = compressed_size;  in add_async_extent()
516 	async_extent->pages = pages;  in add_async_extent()
517 	async_extent->nr_pages = nr_pages;  in add_async_extent()
518 	async_extent->compress_type = compress_type;  in add_async_extent()
519 	list_add_tail(&async_extent->list, &cow->extents);  in add_async_extent()
891 static void free_async_extent_pages(struct async_extent *async_extent)  in free_async_extent_pages()  argument
895 	if (!async_extent->pages)  in free_async_extent_pages()
898 	for (i = 0; i < async_extent->nr_pages; i++) {  in free_async_extent_pages()
899 		WARN_ON(async_extent->pages[i]->mapping);  in free_async_extent_pages()
900 		put_page(async_extent->pages[i]);  in free_async_extent_pages()
902 	kfree(async_extent->pages);  in free_async_extent_pages()
903 	async_extent->nr_pages = 0;  in free_async_extent_pages()
904 	async_extent->pages = NULL;  in free_async_extent_pages()
908 				     struct async_extent *async_extent,  in submit_uncompressed_range()  argument
911 	u64 start = async_extent->start;  in submit_uncompressed_range()
912 	u64 end = async_extent->start + async_extent->ram_size - 1;  in submit_uncompressed_range()
950 	kfree(async_extent);  in submit_uncompressed_range()
956 				   struct async_extent *async_extent,  in submit_one_async_extent()  argument
966 	u64 start = async_extent->start;  in submit_one_async_extent()
967 	u64 end = async_extent->start + async_extent->ram_size - 1;  in submit_one_async_extent()
983 	if (!async_extent->pages)  in submit_one_async_extent()
984 		return submit_uncompressed_range(inode, async_extent, locked_page);  in submit_one_async_extent()
986 	ret = btrfs_reserve_extent(root, async_extent->ram_size,  in submit_one_async_extent()
987 				   async_extent->compressed_size,  in submit_one_async_extent()
988 				   async_extent->compressed_size,  in submit_one_async_extent()
991 		free_async_extent_pages(async_extent);  in submit_one_async_extent()
1004 			  async_extent->ram_size,	/* len */  in submit_one_async_extent()
1009 			  async_extent->ram_size,	/* ram_bytes */  in submit_one_async_extent()
1010 			  async_extent->compress_type,  in submit_one_async_extent()
1019 				       async_extent->ram_size,	/* num_bytes */  in submit_one_async_extent()
1020 				       async_extent->ram_size,	/* ram_bytes */  in submit_one_async_extent()
1025 				       async_extent->compress_type);  in submit_one_async_extent()
1037 			    async_extent->ram_size,	/* num_bytes */  in submit_one_async_extent()
1040 			    async_extent->pages,	/* compressed_pages */  in submit_one_async_extent()
1041 			    async_extent->nr_pages,  in submit_one_async_extent()
1044 		const u64 start = async_extent->start;  in submit_one_async_extent()
1045 		const u64 end = start + async_extent->ram_size - 1;  in submit_one_async_extent()
1051 		free_async_extent_pages(async_extent);  in submit_one_async_extent()
1054 	kfree(async_extent);  in submit_one_async_extent()
1067 	free_async_extent_pages(async_extent);  in submit_one_async_extent()
1068 	kfree(async_extent);  in submit_one_async_extent()
1081 	struct async_extent *async_extent;  in submit_compressed_extents()  local
1089 		async_extent = list_entry(async_chunk->extents.next,  in submit_compressed_extents()
1090 					  struct async_extent, list);  in submit_compressed_extents()
1091 		list_del(&async_extent->list);  in submit_compressed_extents()
1092 		extent_start = async_extent->start;  in submit_compressed_extents()
1093 		ram_size = async_extent->ram_size;  in submit_compressed_extents()
1095 		ret = submit_one_async_extent(inode, async_chunk, async_extent,  in submit_compressed_extents()