22 	char *cache;  member
61 		const char *src = node->cache + (start - node->start) * blksz;  in blkcache_read()
82 	/* don't cache big stuff */  in blkcache_fill()
98 			free(node->cache);  in blkcache_fill()
99 			node->cache = 0;  in blkcache_fill()
105 		node->cache = 0;  in blkcache_fill()
108 	if (!node->cache) {  in blkcache_fill()
109 		node->cache = malloc(bytes);  in blkcache_fill()
110 		if (!node->cache) {  in blkcache_fill()
124 	memcpy(node->cache, buffer, bytes);  in blkcache_fill()
139 			free(node->cache);  in blkcache_invalidate()
151 		/* invalidate cache */  in blkcache_configure()
155 			free(node->cache);  in blkcache_configure()