函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\resctrl\rdtgroup.c Create Date:2022-07-27 09:10:57
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：cpus_ctrl_write

函数原型：static int cpus_ctrl_write(struct rdtgroup *rdtgrp, cpumask_var_t newmask, cpumask_var_t tmpmask, cpumask_var_t tmpmask1)

返回类型：int

参数：

类型参数名称
struct rdtgroup *rdtgrp
cpumask_var_tnewmask
cpumask_var_ttmpmask
cpumask_var_ttmpmask1
393  pumask_andnot - *dstp = *src1p & ~*src2p*@dstp: the cpumask result*@src1p: the first input*@src2p: the second input* If *@dstp is empty, returns 0, else returns 1
394  如果pumask_weight - Count of bits in *srcp*@srcp: the cpumask to count bits (< nr_cpu_ids) in.则
396  如果rdtgrp恒等于rdtgroup_default则
397  rdt_last_cmd_puts("Can't drop CPUs from default group\n")
398  返回:负EINVAL
402  pumask_or - *dstp = *src1p | *src2p*@dstp: the cpumask result*@src1p: the first input*@src2p: the second input
404  Update the PGR_ASSOC MSR on all cpus in @cpu_mask,* Per task closids/rmids must have been set up before calling this function.
412  pumask_andnot - *dstp = *src1p & ~*src2p*@dstp: the cpumask result*@src1p: the first input*@src2p: the second input* If *@dstp is empty, returns 0, else returns 1
413  如果pumask_weight - Count of bits in *srcp*@srcp: the cpumask to count bits (< nr_cpu_ids) in.则
415  如果r恒等于rdtgrp则继续下一循环
417  pumask_and - *dstp = *src1p & *src2p*@dstp: the cpumask result*@src1p: the first input*@src2p: the second input* If *@dstp is empty, returns 0, else returns 1
418  如果pumask_weight - Count of bits in *srcp*@srcp: the cpumask to count bits (< nr_cpu_ids) in.则cpumask_rdtgrp_clear(r, tmpmask1)
421  Update the PGR_ASSOC MSR on all cpus in @cpu_mask,* Per task closids/rmids must have been set up before calling this function.
425  pumask_copy - *dstp = *srcp*@dstp: the result*@srcp: the input cpumask
431  head等于crdtgrp_list
433  pumask_and - *dstp = *src1p & *src2p*@dstp: the cpumask result*@src1p: the first input*@src2p: the second input* If *@dstp is empty, returns 0, else returns 1
434  Update the PGR_ASSOC MSR on all cpus in @cpu_mask,* Per task closids/rmids must have been set up before calling this function.
435  清空全部CPU信息
438  返回:0
调用者
名称描述
rdtgroup_cpus_write