files, fs, tty, keyrings, mems_allowed, mempolicy: */spinlock_t alloc_lock;/* Protection of the PI data structures: */raw_spinlock_t pi_lock;struct wake_q_node wake_q;#ifdefCONFIG_RT_MUTEXES/* PI waiters blocked on a rt_mutex held ...
* struct device - The basic device structure * @parent: The device's "parent" device, the device to which it is attached. * In most cases, a parent device is some sort of bus or host * controller. If parent is NULL, the device, is a top-level device, * which is not usually wh...
区分对task不同的处理:RT / DL / CFS在每个CPU上rq中,存在描述Task对象的结构体,即task_struct支持Taskgroup的机制后,将Task抽象为... uninterruptible的数量 在对应实现中添加全局变量,统计完整系统的数值; 1.结构关系图示 2.结构体目录目录结构体/kernel-4.9/kernel/sched/sched.hrq ...
intprio, static_prio, normal_prio;unsignedintrt_priority; 实时优先级范围是0到MAX_RT_PRIO-1(即99),而普通进程的静态优先级范围是从MAX_RT_PRIO到MAX_PRIO-1(即100到139)。值越大静态优先级越低。 /* http://lxr.free-electrons.com/source/include/linux/sched/prio.h#L21 */#defineMAX_USER_RT_...
/* Real parent process: */structtask_struct__rcu*real_parent;//亲生父亲进程 /* Recipient of SIGCHLD, wait4 reports: */structtask_struct__rcu*parent;//养父进程 /** Children/sibling form the list of natural children:*/structlist_headchildren;//子进程链表structlist_headsibling;//兄弟进程链表...
#ifdef CONFIG_RT_GROUP_SCHEDstructsched_rt_entity *parent;/*rq on which this entity is (to be) queued:*/structrt_rq *rt_rq;/*rq "owned" by this entity/group:*/structrt_rq *my_q;#endif} __randomize_layout;structsched_dl_entity {structrb_node rb_node;/** Original scheduling param...
u32 parent_exec_id; u32 self_exec_id; (25)、中断 #ifdef CONFIG_GENERIC_HARDIRQS /* IRQ handler threads */ struct irqaction *irqaction; #endif #ifdef CONFIG_TRACE_IRQFLAGS unsigned int irq_events; unsigned long hardirq_enable_ip; ...
u32 parent_exec_id; u32 self_exec_id; (25)、中断 #ifdef CONFIG_GENERIC_HARDIRQS /* IRQ handler threads */ struct irqaction *irqaction; #endif #ifdef CONFIG_TRACE_IRQFLAGS unsigned int irq_events; unsigned long hardirq_enable_ip; ...
1459 1460 /* Thread group tracking */ 1461 u32 parent_exec_id; 1462 u32 self_exec_id; 1463 /* Protection of (de-)allocation: mm, files, fs, tty, keyrings, mems_allowed, 1464 * mempolicy */ 1465 spinlock_t alloc_lock; 1466 1467 /* Protection of the PI data structures: */ 1468...
struct task_struct *real_parent; struct task_struct *parent; struct list_head children; struct list_head sibling; struct task_struct *group_leader; 1. 2. 3. 4. 5. linux系统当中,考虑到进程的派生,所以进程之间会存在父进程和子进程这样的关系,当然,对于同一个父进程派生出来的进程,他们的关系当然...