diff options
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 54 |
1 files changed, 24 insertions, 30 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 9f51932bd543..2c2e56bd8913 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -25,9 +25,11 @@ #include <linux/resource.h> #include <linux/latencytop.h> #include <linux/sched/prio.h> +#include <linux/sched/types.h> #include <linux/signal_types.h> #include <linux/mm_types_task.h> #include <linux/task_io_accounting.h> +#include <linux/posix-timers.h> #include <linux/rseq.h> /* task_struct member predeclarations (sorted alphabetically): */ @@ -244,27 +246,6 @@ struct prev_cputime { #endif }; -/** - * struct task_cputime - collected CPU time counts - * @utime: time spent in user mode, in nanoseconds - * @stime: time spent in kernel mode, in nanoseconds - * @sum_exec_runtime: total time spent on the CPU, in nanoseconds - * - * This structure groups together three kinds of CPU time that are tracked for - * threads and thread groups. Most things considering CPU time want to group - * these counts together and treat all three of them in parallel. - */ -struct task_cputime { - u64 utime; - u64 stime; - unsigned long long sum_exec_runtime; -}; - -/* Alternate field names when used on cache expirations: */ -#define virt_exp utime -#define prof_exp stime -#define sched_exp sum_exec_runtime - enum vtime_state { /* Task is sleeping or running in a CPU with VTIME inactive: */ VTIME_INACTIVE = 0, @@ -295,6 +276,11 @@ enum uclamp_id { UCLAMP_CNT }; +#ifdef CONFIG_SMP +extern struct root_domain def_root_domain; +extern struct mutex sched_domains_mutex; +#endif + struct sched_info { #ifdef CONFIG_SCHED_INFO /* Cumulative counters: */ @@ -876,10 +862,8 @@ struct task_struct { unsigned long min_flt; unsigned long maj_flt; -#ifdef CONFIG_POSIX_TIMERS - struct task_cputime cputime_expires; - struct list_head cpu_timers[3]; -#endif + /* Empty if CONFIG_POSIX_CPUTIMERS=n */ + struct posix_cputimers posix_cputimers; /* Process credentials: */ @@ -974,6 +958,10 @@ struct task_struct { struct mutex_waiter *blocked_on; #endif +#ifdef CONFIG_DEBUG_ATOMIC_SLEEP + int non_block_count; +#endif + #ifdef CONFIG_TRACE_IRQFLAGS unsigned int irq_events; unsigned long hardirq_enable_ip; @@ -1142,7 +1130,10 @@ struct task_struct { struct tlbflush_unmap_batch tlb_ubc; - struct rcu_head rcu; + union { + refcount_t rcu_users; + struct rcu_head rcu; + }; /* Cache last used pipe for splice(): */ struct pipe_inode_info *splice_pipe; @@ -1767,7 +1758,7 @@ static inline int test_tsk_need_resched(struct task_struct *tsk) * value indicates whether a reschedule was done in fact. * cond_resched_lock() will drop the spinlock before scheduling, */ -#ifndef CONFIG_PREEMPT +#ifndef CONFIG_PREEMPTION extern int _cond_resched(void); #else static inline int _cond_resched(void) { return 0; } @@ -1796,12 +1787,12 @@ static inline void cond_resched_rcu(void) /* * Does a critical section need to be broken due to another - * task waiting?: (technically does not depend on CONFIG_PREEMPT, + * task waiting?: (technically does not depend on CONFIG_PREEMPTION, * but a general need for low latency) */ static inline int spin_needbreak(spinlock_t *lock) { -#ifdef CONFIG_PREEMPT +#ifdef CONFIG_PREEMPTION return spin_is_contended(lock); #else return 0; @@ -1851,7 +1842,10 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu) * running or not. */ #ifndef vcpu_is_preempted -# define vcpu_is_preempted(cpu) false +static inline bool vcpu_is_preempted(int cpu) +{ + return false; +} #endif extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask); |