1 2 #ifndef __SWAP_ON_OFF_H_ 3 #define __SWAP_ON_OFF_H_ 4 5 /* 6 * Read swapon(2) / swapoff(2) for a full history lesson behind the value of 7 * MAX_SWAPFILES. 8 */ 9 #include <linux/version.h> 10 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 18) 11 #define MAX_SWAPFILES 30 12 #elif LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 10) 13 #define MAX_SWAPFILES 32 14 #else 15 #define MAX_SWAPFILES 8 16 #endif 17 18 #endif 19