函数逻辑报告 |
Source Code:kernel\cpu.c |
Create Date:2022-07-27 10:00:37 |
| Last Modify:2020-03-18 13:00:59 | Copyright©Brick |
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函数名称：__cpuhp_remove_state_cpuslocked - Remove the callbacks for an hotplug machine state*@state: The state to remove*@invoke: If true, the teardown function is invoked for cpus where* cpu state >= @state
函数原型：void __cpuhp_remove_state_cpuslocked(enum cpuhp_state state, bool invoke)
返回类型：void
参数：
| 类型 | 参数 | 名称 |
|---|---|---|
| enum cpuhp_state | state | |
| bool | invoke |
| 1873 | sp等于cpuhp_get_step(state) |
| 1876 | BUG_ON(Sanity check for callbacks ) |
| 1878 | lockdep_assert_cpus_held() |
| 1880 | mutex_lock( & cpuhp_state_mutex) |
| 1881 | 如果multi_instance则 |
| 1882 | WARN(!hlist_empty( & list), "Error: Removing state %d which has instances left.\n", state) |
| 1885 | 转到:remove |
| 1888 | 如果非invoke或非cpuhp_get_teardown_cb(state)则转到:remove |
| 1897 | st等于per_cpu_ptr( & cpuhp_state, cpu) |
| 1903 | remove : |
| 1904 | cpuhp_store_callbacks(state, NULL, NULL, NULL, false) |
| 1905 | mutex_unlock( & cpuhp_state_mutex) |
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