DECLARE_COMPLETION_ONSTACK(done);structtask_struct*task;structkthread_create_info*create=kmalloc(sizeof(*create),GFP_KERNEL);if(!create)returnERR_PTR(-ENOMEM); create->threadfn = threadfn; create->data = data; create->node = node; create->done = &done; spin_lock(&kthread_create_lock)...
Enable maximum number of CPUS and NUMA Nodes for this architecture. If unsure, say N. 如果没有配置MAXSMP选项,在x86-64架构SMP系统下,NR_CPUS最大只能设置为512(见config NR_CPUS中的说明)。 使用make menuconfig命令, 配置MAXSMP及NR_CPUS的界面如下图所示: ...
kfree(stale_map[cpu]); stale_map[cpu] =NULL;/* We also clear the cpu_vm_mask bits of CPUs going away */read_lock(&tasklist_lock); for_each_process(p) {if(p->mm)cpumask_clear_cpu(cpu, mm_cpumask(p->mm)); } read_unlock(&tasklist_lock);break;#endif/* CONFIG_HOTPLUG_CPU *...
假设传入的cpu编号为65,get_cpu_mask()函数处理如下: /* 初始值还是cpu_bit_bitmap[2] */constunsignedlong*p=cpu_bit_bitmap[1+1];/* 因指针p指向的数据类型为unsigned long型,所以此处p指向的地址* 需减去1*sizeof(unsigned long),64为系统中即为8*/p-=1;returnto_cpumask(p); 返回的cpumask如图...
cpumask: 改变cpumask_scnprintf, cpumask_parse_user, cpulist_parse, and cpulist_scnprintf函数参数为指针. Impact: change calling convention of existing cpumask APIs 大多数cpumask函数以cpus_为起始串,这些被以struct cpumask指针为参数的cpumask_XXX替换 ...
Source Code:include\linux\cpumask.hCreate Date:2022-07-27 06:38:52 Last Modify:2020-03-12 14:18:49Copyright©Brick 首页函数Tree 函数名称:设置CPU信息 返回类型:void 参数: 类型参数名称 unsigned intcpu struct cpumask *dstp 源代码转换工具 ...
A thread affinity mask must be a proper subset of the process affinity mask for the containing process of a thread. A thread is only allowed to run on the processors its process is allowed to run on. 通过调用SetThreadAffinityMask,就能为各个线程设置亲缘性屏蔽: ...
函数名称:清空全部CPU信息 函数原型:static inline void cpumask_clear(struct cpumask *dstp) 返回类型:void 参数: 类型参数名称 struct cpumask * dstp 406 bitmap_zero(cpumask_bits - get the bits in a cpumask*@maskp: the struct cpumask ** You should only assume nr_cpu_ids bits of this mas...
A thread affinity mask must be a proper subset of the process affinity mask for the containing process of a thread. A thread is only allowed to run on the processors its process is allowed to run on.通过调用SetThreadAffinityMask,就能为各个线程设置亲缘性屏蔽:DWORD_PTR SetThreadAffinityMask(...