函数逻辑报告

函数名称：It's optimal to keep kswapds on the same CPUs as their memory, butnot required for correctness. So if the last cpu in a node goesaway, we get changed to run anywhere: as the first one comes back,restore their cpu bindings.

函数原型：static int kswapd_cpu_online(unsigned int cpu)

返回类型：int

参数：