Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\stop_machine.c Create Date:2022-07-28 11:20:54
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:stop_one_cpu - stop a cpu*@cpu: cpu to stop*@fn: function to execute*@arg: argument to @fn* Execute @fn(@arg) on @cpu. @fn is run in a process context with* the highest priority preempting any task on the cpu and* monopolizing it

Proto:int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg)

Type:int

Parameter:

TypeParameterName
unsigned intcpu
cpu_stop_fn_tfn
void *arg
126  struct cpu_stop_work work = {fn = fn, arg = arg, done = & done}
128  cpu_stop_init_done( & done, 1)
129  If Not queue @work to @stopper. if offline, @work is completed immediately Then Return -ENOENT
135  cond_resched()
136  wait_for_completion: - waits for completion of a task*@x: holds the state of this particular completion* This waits to be signaled for completion of a specific task. It is NOT* interruptible and there is no timeout.* See also similar routines (i
137  Return collected return value