alloc_cpumask

函数名称：分配CPU掩码

函数原型：static inline bool alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags)

返回类型：bool

参数：

类型	参数	名称
cpumask_var_t *	mask
gfp_t	flags

**调用者**
名称	描述
arch_early_irq_init
alloc_workqueue_attrs	alloc_workqueue_attrs - allocate a workqueue_attrs* Allocate a new workqueue_attrs, initialize with default settings and* return it.* Return: The allocated new workqueue_attr on success. %NULL on failure.
workqueue_init_early	workqueue_init_early - early init for workqueue subsystem* This is the first half of two-staged workqueue subsystem initialization* and invoked as soon as the bare basics - memory allocation, cpumasks and* idr are up
sched_setaffinity
SYSCALL_DEFINE3	sys_sched_setaffinity - set the CPU affinity of a process@pid: pid of the process@len: length in bytes of the bitmask pointed to by user_mask_ptr@user_mask_ptr: user-space pointer to the new CPU mask Return: 0 on success. An error code otherwise.
SYSCALL_DEFINE3	sys_sched_getaffinity - get the CPU affinity of a process@pid: pid of the process@len: length in bytes of the bitmask pointed to by user_mask_ptr*@user_mask_ptr: user-space pointer to hold the current CPU mask
alloc_sched_domains
profile_init	分配内核性能统计
prof_cpu_mask_proc_write
COMPAT_SYSCALL_DEFINE3
COMPAT_SYSCALL_DEFINE3
cpuset_init	puset_init - initialize cpusets at system boot* Description: Initialize top_cpuset
cmd_attr_register_cpumask
cmd_attr_deregister_cpumask
tracing_cpumask_write
tracing_open_pipe
trace_array_create
tracer_alloc_buffers
pd_setup_cpumasks
store_cpumask
padata_alloc	padata_alloc - allocate and initialize a padata instance and specify* cpumasks for serial and parallel workers
torture_shuffle_init	Start the shuffler, with shuffint in jiffies.

函数逻辑报告