如果registered是1,表示在将任务添加到这个domain时,会把该任务挂到这个domain私有的pending链表,同时还会将其添加到全局的async_global_pending链表,这样,可以调用async_synchronize_full来等待任务执行完毕,这个接口会检查async_global_pending链表中的异步任务是否都已经执行完毕,此外也可以调
AI代码解释 staticinline intfree_area(unsigned long pfn,unsigned long end,char*s){unsigned int pages=0,size=(end-pfn)<<(PAGE_SHIFT-10);...if(size&&s)printk(KERN_INFO"Freeing %s memory: %dK\n",s,size);---输出“Freeing init memory:”到kmsg中。returnpages;}voidfree_initmem(void){.....
machine_is_cintegrator()) totalram_pages += free_area(__phys_to_pfn(__pa(__init_begin)), __phys_to_pfn(__pa(__init_end)), "init"); } static noinline int init_post(void) { /* need to finish all async __init code before freeing the memory */ async_synchronize_full(); free...
*/ if (mod->exit != NULL) mod->exit(); blocking_notifier_call_chain(&module_notify_list, MODULE_STATE_GOING, mod); klp_module_going(mod); ftrace_release_mod(mod); async_synchronize_full(); /* 记录最近卸载的模块的名字,便于诊断问题 */ strlcpy(last_unloaded_module, mod->...
async_synchronize_full(); } is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR; if (is_floppy && rd_doload && rd_load_disk(0)) ROOT_DEV = Root_RAM0; mount_root(); out: [9] sys_mount(".", "/", NULL, MS_MOVE, NULL); [10] sys_chroot("."); }代码[1]:资料中提到,对于将根...
async_synchronize_full(); } is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR; if (is_floppy && rd_doload && rd_load_disk(0)) ROOT_DEV = Root_RAM0; mount_root(); out: sys_mount(".", "/", NULL, MS_MOVE, NULL); // 批注8 ...
async_synchronize_full(); ftrace_free_init_mem(); free_initmem(); mark_readonly(); /* * Kernel mappings are now finalized - update the userspace page-table * to finalize PTI. */ pti_finalize(); system_state = SYSTEM_RUNNING;
entry, &dpm_suspended_list); put_device(dev); if (async_error) break; } mutex_unlock(&dpm_list_mtx); async_synchronize_full(); if (!error) error = async_error; if (error) { suspend_stats.failed_suspend++; dpm_save_failed_step(SUSPEND_SUSPEND); } else dpm_show_time(starttime, ...
计算机消耗的是电能,其来源是电池或者外电源。计算机内部有一个部件叫做电源管理芯片(PMIC),它接收外部的电能,然后转化为不同电压的电流,向系统的各个硬件供电。什么硬件需要多少伏的电压,都是由相应的电气标准规定好了的,各个硬件厂商按照标准生成硬件就可以了。上电的过程是由硬件自动完成的,不需要软件的参与。因为...
One of MS_ASYNC or MS_SYNC must be specified, but not both. Usage is simple: if (msync (addr, len, MS_ASYNC) == −1) perror ("msync"); This example asynchronously synchronizes (say that 10 times fast) to disk the file mapped in the region [addr,addr+len). Return values and...