feat: lru eviction policy on page caches

[lunaix-os.git] / lunaix-os / includes / lunaix / spike.h

diff --git a/lunaix-os/includes/lunaix/spike.h b/lunaix-os/includes/lunaix/spike.h
index 4e17993266adbf0e96971a034c39f4517d723cad..4363b4123a89efa9be46cddd743353360b5ce019 100644 (file)
--- a/lunaix-os/includes/lunaix/spike.h
+++ b/lunaix-os/includes/lunaix/spike.h
@@ -3,12 +3,12 @@
 
 // Some helper functions. As helpful as Spike the Dragon! :)
 
 
 // Some helper functions. As helpful as Spike the Dragon! :)
 

-// 除法向上取整
+// 除法 v/(2^k) 向上取整

 #define CEIL(v, k) (((v) + (1 << (k)) - 1) >> (k))
 
 #define ICEIL(x, y) ((x) / (y) + ((x) % (y) != 0))
 
 #define CEIL(v, k) (((v) + (1 << (k)) - 1) >> (k))
 
 #define ICEIL(x, y) ((x) / (y) + ((x) % (y) != 0))
 

-// 除法向下取整
+// 除法 v/(2^k) 向下取整

 #define FLOOR(v, k) ((v) >> (k))
 
 // 获取v最近的最大k倍数
 #define FLOOR(v, k) ((v) >> (k))
 
 // 获取v最近的最大k倍数