函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\cgroup\cpuset.c Create Date:2022-07-27 12:19:24
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：cpuset_write_u64

函数原型：static int cpuset_write_u64(struct cgroup_subsys_state *css, struct cftype *cft, u64 val)

返回类型：int

参数：

类型参数名称
struct cgroup_subsys_state *css
struct cftype *cft
u64val
2254  cs等于css_cs(css)
2255  type等于private
2256  retval等于0
2258  get_online_cpus()
2259  percpu_down_write( & cpuset_rwsem)
2260  如果非venient tests for these bits 则
2261  retval等于负ENODEV
2262  转到:out_unlock
2266  当:type恒等于FILE_CPU_EXCLUSIVE
2267  retval等于pdate_flag - read a 0 or a 1 in a file and update associated flag* Call with cpuset_mutex held.
2268  退出
2269  当:type恒等于FILE_MEM_EXCLUSIVE
2270  retval等于pdate_flag - read a 0 or a 1 in a file and update associated flag* Call with cpuset_mutex held.
2271  退出
2272  当:type恒等于FILE_MEM_HARDWALL
2273  retval等于pdate_flag - read a 0 or a 1 in a file and update associated flag* Call with cpuset_mutex held.
2274  退出
2275  当:type恒等于FILE_SCHED_LOAD_BALANCE
2276  retval等于pdate_flag - read a 0 or a 1 in a file and update associated flag* Call with cpuset_mutex held.
2277  退出
2278  当:type恒等于FILE_MEMORY_MIGRATE
2279  retval等于pdate_flag - read a 0 or a 1 in a file and update associated flag* Call with cpuset_mutex held.
2280  退出
2281  当:type恒等于FILE_MEMORY_PRESSURE_ENABLED
2282  cpuset_memory_pressure_enabled等于非非val
2283  退出
2284  当:type恒等于FILE_SPREAD_PAGE
2285  retval等于pdate_flag - read a 0 or a 1 in a file and update associated flag* Call with cpuset_mutex held.
2286  退出
2287  当:type恒等于FILE_SPREAD_SLAB
2288  retval等于pdate_flag - read a 0 or a 1 in a file and update associated flag* Call with cpuset_mutex held.
2289  退出
2290  默认
2291  retval等于负EINVAL
2292  退出
2294  out_unlock :
2295  percpu_up_write( & cpuset_rwsem)
2296  put_online_cpus()
2297  返回:retval