36 	struct block_cache_node *node;  in cache_find()  local
38 	list_for_each_entry(node, &block_cache, lh)  in cache_find()
39 		if ((node->iftype == iftype) &&  in cache_find()
40 		    (node->devnum == devnum) &&  in cache_find()
41 		    (node->blksz == blksz) &&  in cache_find()
42 		    (node->start <= start) &&  in cache_find()
43 		    (node->start + node->blkcnt >= start + blkcnt)) {  in cache_find()
44 			if (block_cache.next != &node->lh) {  in cache_find()
46 				list_del(&node->lh);  in cache_find()
47 				list_add(&node->lh, &block_cache);  in cache_find()
49 			return node;  in cache_find()
58 	struct block_cache_node *node = cache_find(iftype, devnum, start,  in blkcache_read()  local
60 	if (node) {  in blkcache_read()
61 		const char *src = node->cache + (start - node->start) * blksz;  in blkcache_read()
80 	struct block_cache_node *node;  in blkcache_fill()  local
92 		node = (struct block_cache_node *)block_cache.prev;  in blkcache_fill()
93 		list_del(&node->lh);  in blkcache_fill()
96 		      node->start, node->blkcnt);  in blkcache_fill()
97 		if (node->blkcnt * node->blksz < bytes) {  in blkcache_fill()
98 			free(node->cache);  in blkcache_fill()
99 			node->cache = 0;  in blkcache_fill()
102 		node = malloc(sizeof(*node));  in blkcache_fill()
103 		if (!node)  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()
111 			free(node);  in blkcache_fill()
119 	node->iftype = iftype;  in blkcache_fill()
120 	node->devnum = devnum;  in blkcache_fill()
121 	node->start = start;  in blkcache_fill()
122 	node->blkcnt = blkcnt;  in blkcache_fill()
123 	node->blksz = blksz;  in blkcache_fill()
124 	memcpy(node->cache, buffer, bytes);  in blkcache_fill()
125 	list_add(&node->lh, &block_cache);  in blkcache_fill()
132 	struct block_cache_node *node;  in blkcache_invalidate()  local
135 		node = (struct block_cache_node *)entry;  in blkcache_invalidate()
136 		if ((node->iftype == iftype) &&  in blkcache_invalidate()
137 		    (node->devnum == devnum)) {  in blkcache_invalidate()
139 			free(node->cache);  in blkcache_invalidate()
140 			free(node);  in blkcache_invalidate()
148 	struct block_cache_node *node;  in blkcache_configure()  local
153 			node = (struct block_cache_node *)block_cache.next;  in blkcache_configure()
154 			list_del(&node->lh);  in blkcache_configure()
155 			free(node->cache);  in blkcache_configure()
156 			free(node);  in blkcache_configure()