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-rw-r--r--include/linux/sched.h209
1 files changed, 129 insertions, 80 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 56154bbb8da..885c4f242ad 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -21,7 +21,8 @@
#define CLONE_DETACHED 0x00400000 /* Unused, ignored */
#define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */
#define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */
-#define CLONE_STOPPED 0x02000000 /* Start in stopped state */
+/* 0x02000000 was previously the unused CLONE_STOPPED (Start in stopped state)
+ and is now available for re-use. */
#define CLONE_NEWUTS 0x04000000 /* New utsname group? */
#define CLONE_NEWIPC 0x08000000 /* New ipcs */
#define CLONE_NEWUSER 0x10000000 /* New user namespace */
@@ -70,7 +71,6 @@ struct sched_param {
#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/signal.h>
-#include <linux/path.h>
#include <linux/compiler.h>
#include <linux/completion.h>
#include <linux/pid.h>
@@ -88,7 +88,6 @@ struct sched_param {
#include <linux/timer.h>
#include <linux/hrtimer.h>
#include <linux/task_io_accounting.h>
-#include <linux/kobject.h>
#include <linux/latencytop.h>
#include <linux/cred.h>
@@ -100,6 +99,7 @@ struct robust_list_head;
struct bio_list;
struct fs_struct;
struct perf_event_context;
+struct blk_plug;
/*
* List of flags we want to share for kernel threads,
@@ -143,7 +143,7 @@ extern unsigned long nr_iowait_cpu(int cpu);
extern unsigned long this_cpu_load(void);
-extern void calc_global_load(void);
+extern void calc_global_load(unsigned long ticks);
extern unsigned long get_parent_ip(unsigned long addr);
@@ -316,6 +316,7 @@ extern int proc_dowatchdog_thresh(struct ctl_table *table, int write,
size_t *lenp, loff_t *ppos);
extern unsigned int softlockup_panic;
extern int softlockup_thresh;
+void lockup_detector_init(void);
#else
static inline void touch_softlockup_watchdog(void)
{
@@ -326,6 +327,9 @@ static inline void touch_softlockup_watchdog_sync(void)
static inline void touch_all_softlockup_watchdogs(void)
{
}
+static inline void lockup_detector_init(void)
+{
+}
#endif
#ifdef CONFIG_DETECT_HUNG_TASK
@@ -356,7 +360,7 @@ extern signed long schedule_timeout_interruptible(signed long timeout);
extern signed long schedule_timeout_killable(signed long timeout);
extern signed long schedule_timeout_uninterruptible(signed long timeout);
asmlinkage void schedule(void);
-extern int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner);
+extern int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner);
struct nsproxy;
struct user_namespace;
@@ -431,6 +435,7 @@ extern int get_dumpable(struct mm_struct *mm);
#endif
/* leave room for more dump flags */
#define MMF_VM_MERGEABLE 16 /* KSM may merge identical pages */
+#define MMF_VM_HUGEPAGE 17 /* set when VM_HUGEPAGE is set on vma */
#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK)
@@ -509,8 +514,10 @@ struct thread_group_cputimer {
spinlock_t lock;
};
+struct autogroup;
+
/*
- * NOTE! "signal_struct" does not have it's own
+ * NOTE! "signal_struct" does not have its own
* locking, because a shared signal_struct always
* implies a shared sighand_struct, so locking
* sighand_struct is always a proper superset of
@@ -576,6 +583,9 @@ struct signal_struct {
struct tty_struct *tty; /* NULL if no tty */
+#ifdef CONFIG_SCHED_AUTOGROUP
+ struct autogroup *autogroup;
+#endif
/*
* Cumulative resource counters for dead threads in the group,
* and for reaped dead child processes forked by this group.
@@ -626,6 +636,12 @@ struct signal_struct {
int oom_adj; /* OOM kill score adjustment (bit shift) */
int oom_score_adj; /* OOM kill score adjustment */
+ int oom_score_adj_min; /* OOM kill score adjustment minimum value.
+ * Only settable by CAP_SYS_RESOURCE. */
+
+ struct mutex cred_guard_mutex; /* guard against foreign influences on
+ * credential calculations
+ * (notably. ptrace) */
};
/* Context switch must be unlocked if interrupts are to be enabled */
@@ -637,9 +653,8 @@ struct signal_struct {
* Bits in flags field of signal_struct.
*/
#define SIGNAL_STOP_STOPPED 0x00000001 /* job control stop in effect */
-#define SIGNAL_STOP_DEQUEUED 0x00000002 /* stop signal dequeued */
-#define SIGNAL_STOP_CONTINUED 0x00000004 /* SIGCONT since WCONTINUED reap */
-#define SIGNAL_GROUP_EXIT 0x00000008 /* group exit in progress */
+#define SIGNAL_STOP_CONTINUED 0x00000002 /* SIGCONT since WCONTINUED reap */
+#define SIGNAL_GROUP_EXIT 0x00000004 /* group exit in progress */
/*
* Pending notifications to parent.
*/
@@ -668,8 +683,11 @@ struct user_struct {
atomic_t inotify_watches; /* How many inotify watches does this user have? */
atomic_t inotify_devs; /* How many inotify devs does this user have opened? */
#endif
+#ifdef CONFIG_FANOTIFY
+ atomic_t fanotify_listeners;
+#endif
#ifdef CONFIG_EPOLL
- atomic_t epoll_watches; /* The number of file descriptors currently watched */
+ atomic_long_t epoll_watches; /* The number of file descriptors currently watched */
#endif
#ifdef CONFIG_POSIX_MQUEUE
/* protected by mq_lock */
@@ -712,10 +730,6 @@ struct sched_info {
/* timestamps */
unsigned long long last_arrival,/* when we last ran on a cpu */
last_queued; /* when we were last queued to run */
-#ifdef CONFIG_SCHEDSTATS
- /* BKL stats */
- unsigned int bkl_count;
-#endif
};
#endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */
@@ -835,7 +849,7 @@ extern int __weak arch_sd_sibiling_asym_packing(void);
/*
* Optimise SD flags for power savings:
- * SD_BALANCE_NEWIDLE helps agressive task consolidation and power savings.
+ * SD_BALANCE_NEWIDLE helps aggressive task consolidation and power savings.
* Keep default SD flags if sched_{smt,mc}_power_saving=0
*/
@@ -849,12 +863,14 @@ static inline int sd_power_saving_flags(void)
struct sched_group {
struct sched_group *next; /* Must be a circular list */
+ atomic_t ref;
/*
* CPU power of this group, SCHED_LOAD_SCALE being max power for a
* single CPU.
*/
unsigned int cpu_power, cpu_power_orig;
+ unsigned int group_weight;
/*
* The CPUs this group covers.
@@ -862,9 +878,6 @@ struct sched_group {
* NOTE: this field is variable length. (Allocated dynamically
* by attaching extra space to the end of the structure,
* depending on how many CPUs the kernel has booted up with)
- *
- * It is also be embedded into static data structures at build
- * time. (See 'struct static_sched_group' in kernel/sched.c)
*/
unsigned long cpumask[0];
};
@@ -874,17 +887,6 @@ static inline struct cpumask *sched_group_cpus(struct sched_group *sg)
return to_cpumask(sg->cpumask);
}
-enum sched_domain_level {
- SD_LV_NONE = 0,
- SD_LV_SIBLING,
- SD_LV_MC,
- SD_LV_BOOK,
- SD_LV_CPU,
- SD_LV_NODE,
- SD_LV_ALLNODES,
- SD_LV_MAX
-};
-
struct sched_domain_attr {
int relax_domain_level;
};
@@ -893,6 +895,8 @@ struct sched_domain_attr {
.relax_domain_level = -1, \
}
+extern int sched_domain_level_max;
+
struct sched_domain {
/* These fields must be setup */
struct sched_domain *parent; /* top domain must be null terminated */
@@ -910,7 +914,7 @@ struct sched_domain {
unsigned int forkexec_idx;
unsigned int smt_gain;
int flags; /* See SD_* */
- enum sched_domain_level level;
+ int level;
/* Runtime fields. */
unsigned long last_balance; /* init to jiffies. units in jiffies */
@@ -953,6 +957,10 @@ struct sched_domain {
#ifdef CONFIG_SCHED_DEBUG
char *name;
#endif
+ union {
+ void *private; /* used during construction */
+ struct rcu_head rcu; /* used during destruction */
+ };
unsigned int span_weight;
/*
@@ -961,9 +969,6 @@ struct sched_domain {
* NOTE: this field is variable length. (Allocated dynamically
* by attaching extra space to the end of the structure,
* depending on how many CPUs the kernel has booted up with)
- *
- * It is also be embedded into static data structures at build
- * time. (See 'struct static_sched_domain' in kernel/sched.c)
*/
unsigned long span[0];
};
@@ -1028,8 +1033,12 @@ struct sched_domain;
#define WF_FORK 0x02 /* child wakeup after fork */
#define ENQUEUE_WAKEUP 1
-#define ENQUEUE_WAKING 2
-#define ENQUEUE_HEAD 4
+#define ENQUEUE_HEAD 2
+#ifdef CONFIG_SMP
+#define ENQUEUE_WAKING 4 /* sched_class::task_waking was called */
+#else
+#define ENQUEUE_WAKING 0
+#endif
#define DEQUEUE_SLEEP 1
@@ -1039,6 +1048,7 @@ struct sched_class {
void (*enqueue_task) (struct rq *rq, struct task_struct *p, int flags);
void (*dequeue_task) (struct rq *rq, struct task_struct *p, int flags);
void (*yield_task) (struct rq *rq);
+ bool (*yield_to_task) (struct rq *rq, struct task_struct *p, bool preempt);
void (*check_preempt_curr) (struct rq *rq, struct task_struct *p, int flags);
@@ -1046,12 +1056,11 @@ struct sched_class {
void (*put_prev_task) (struct rq *rq, struct task_struct *p);
#ifdef CONFIG_SMP
- int (*select_task_rq)(struct rq *rq, struct task_struct *p,
- int sd_flag, int flags);
+ int (*select_task_rq)(struct task_struct *p, int sd_flag, int flags);
void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
void (*post_schedule) (struct rq *this_rq);
- void (*task_waking) (struct rq *this_rq, struct task_struct *task);
+ void (*task_waking) (struct task_struct *task);
void (*task_woken) (struct rq *this_rq, struct task_struct *task);
void (*set_cpus_allowed)(struct task_struct *p,
@@ -1065,18 +1074,16 @@ struct sched_class {
void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
void (*task_fork) (struct task_struct *p);
- void (*switched_from) (struct rq *this_rq, struct task_struct *task,
- int running);
- void (*switched_to) (struct rq *this_rq, struct task_struct *task,
- int running);
+ void (*switched_from) (struct rq *this_rq, struct task_struct *task);
+ void (*switched_to) (struct rq *this_rq, struct task_struct *task);
void (*prio_changed) (struct rq *this_rq, struct task_struct *task,
- int oldprio, int running);
+ int oldprio);
unsigned int (*get_rr_interval) (struct rq *rq,
struct task_struct *task);
#ifdef CONFIG_FAIR_GROUP_SCHED
- void (*moved_group) (struct task_struct *p, int on_rq);
+ void (*task_move_group) (struct task_struct *p, int on_rq);
#endif
};
@@ -1178,13 +1185,11 @@ struct task_struct {
unsigned int flags; /* per process flags, defined below */
unsigned int ptrace;
- int lock_depth; /* BKL lock depth */
-
#ifdef CONFIG_SMP
-#ifdef __ARCH_WANT_UNLOCKED_CTXSW
- int oncpu;
-#endif
+ struct task_struct *wake_entry;
+ int on_cpu;
#endif
+ int on_rq;
int prio, static_prio, normal_prio;
unsigned int rt_priority;
@@ -1221,15 +1226,23 @@ struct task_struct {
#ifdef CONFIG_TREE_PREEMPT_RCU
struct rcu_node *rcu_blocked_node;
#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+#ifdef CONFIG_RCU_BOOST
+ struct rt_mutex *rcu_boost_mutex;
+#endif /* #ifdef CONFIG_RCU_BOOST */
#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
struct sched_info sched_info;
#endif
struct list_head tasks;
+#ifdef CONFIG_SMP
struct plist_node pushable_tasks;
+#endif
struct mm_struct *mm, *active_mm;
+#ifdef CONFIG_COMPAT_BRK
+ unsigned brk_randomized:1;
+#endif
#if defined(SPLIT_RSS_COUNTING)
struct task_rss_stat rss_stat;
#endif
@@ -1237,6 +1250,7 @@ struct task_struct {
int exit_state;
int exit_code, exit_signal;
int pdeath_signal; /* The signal sent when the parent dies */
+ unsigned int group_stop; /* GROUP_STOP_*, siglock protected */
/* ??? */
unsigned int personality;
unsigned did_exec:1;
@@ -1247,6 +1261,7 @@ struct task_struct {
/* Revert to default priority/policy when forking */
unsigned sched_reset_on_fork:1;
+ unsigned sched_contributes_to_load:1;
pid_t pid;
pid_t tgid;
@@ -1305,9 +1320,6 @@ struct task_struct {
* credentials (COW) */
const struct cred __rcu *cred; /* effective (overridable) subjective task
* credentials (COW) */
- struct mutex cred_guard_mutex; /* guard against foreign influences on
- * credential calculations
- * (notably. ptrace) */
struct cred *replacement_session_keyring; /* for KEYCTL_SESSION_TO_PARENT */
char comm[TASK_COMM_LEN]; /* executable name excluding path
@@ -1408,6 +1420,11 @@ struct task_struct {
/* stacked block device info */
struct bio_list *bio_list;
+#ifdef CONFIG_BLOCK
+/* stack plugging */
+ struct blk_plug *plug;
+#endif
+
/* VM state */
struct reclaim_state *reclaim_state;
@@ -1451,6 +1468,7 @@ struct task_struct {
#ifdef CONFIG_NUMA
struct mempolicy *mempolicy; /* Protected by alloc_lock */
short il_next;
+ short pref_node_fork;
#endif
atomic_t fs_excl; /* holding fs exclusive resources */
struct rcu_head rcu;
@@ -1503,10 +1521,13 @@ struct task_struct {
struct memcg_batch_info {
int do_batch; /* incremented when batch uncharge started */
struct mem_cgroup *memcg; /* target memcg of uncharge */
- unsigned long bytes; /* uncharged usage */
- unsigned long memsw_bytes; /* uncharged mem+swap usage */
+ unsigned long nr_pages; /* uncharged usage */
+ unsigned long memsw_nr_pages; /* uncharged mem+swap usage */
} memcg_batch;
#endif
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+ atomic_t ptrace_bp_refcnt;
+#endif
};
/* Future-safe accessor for struct task_struct's cpus_allowed. */
@@ -1694,7 +1715,6 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
/*
* Per process flags
*/
-#define PF_KSOFTIRQD 0x00000001 /* I am ksoftirqd */
#define PF_STARTING 0x00000002 /* being created */
#define PF_EXITING 0x00000004 /* getting shut down */
#define PF_EXITPIDONE 0x00000008 /* pi exit done on shut down */
@@ -1706,7 +1726,6 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
#define PF_DUMPCORE 0x00000200 /* dumped core */
#define PF_SIGNALED 0x00000400 /* killed by a signal */
#define PF_MEMALLOC 0x00000800 /* Allocating memory */
-#define PF_FLUSHER 0x00001000 /* responsible for disk writeback */
#define PF_USED_MATH 0x00002000 /* if unset the fpu must be initialized before use */
#define PF_FREEZING 0x00004000 /* freeze in progress. do not account to load */
#define PF_NOFREEZE 0x00008000 /* this thread should not be frozen */
@@ -1724,7 +1743,7 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
#define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy */
#define PF_MEMPOLICY 0x10000000 /* Non-default NUMA mempolicy */
#define PF_MUTEX_TESTER 0x20000000 /* Thread belongs to the rt mutex tester */
-#define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezeable */
+#define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezable */
#define PF_FREEZER_NOSIG 0x80000000 /* Freezer won't send signals to it */
/*
@@ -1752,10 +1771,22 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
#define tsk_used_math(p) ((p)->flags & PF_USED_MATH)
#define used_math() tsk_used_math(current)
+/*
+ * task->group_stop flags
+ */
+#define GROUP_STOP_SIGMASK 0xffff /* signr of the last group stop */
+#define GROUP_STOP_PENDING (1 << 16) /* task should stop for group stop */
+#define GROUP_STOP_CONSUME (1 << 17) /* consume group stop count */
+#define GROUP_STOP_TRAPPING (1 << 18) /* switching from STOPPED to TRACED */
+#define GROUP_STOP_DEQUEUED (1 << 19) /* stop signal dequeued */
+
+extern void task_clear_group_stop_pending(struct task_struct *task);
+
#ifdef CONFIG_PREEMPT_RCU
#define RCU_READ_UNLOCK_BLOCKED (1 << 0) /* blocked while in RCU read-side. */
-#define RCU_READ_UNLOCK_NEED_QS (1 << 1) /* RCU core needs CPU response. */
+#define RCU_READ_UNLOCK_BOOSTED (1 << 1) /* boosted while in RCU read-side. */
+#define RCU_READ_UNLOCK_NEED_QS (1 << 2) /* RCU core needs CPU response. */
static inline void rcu_copy_process(struct task_struct *p)
{
@@ -1763,7 +1794,10 @@ static inline void rcu_copy_process(struct task_struct *p)
p->rcu_read_unlock_special = 0;
#ifdef CONFIG_TREE_PREEMPT_RCU
p->rcu_blocked_node = NULL;
-#endif
+#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+#ifdef CONFIG_RCU_BOOST
+ p->rcu_boost_mutex = NULL;
+#endif /* #ifdef CONFIG_RCU_BOOST */
INIT_LIST_HEAD(&p->rcu_node_entry);
}
@@ -1868,14 +1902,11 @@ extern void sched_clock_idle_sleep_event(void);
extern void sched_clock_idle_wakeup_event(u64 delta_ns);
#ifdef CONFIG_HOTPLUG_CPU
-extern void move_task_off_dead_cpu(int dead_cpu, struct task_struct *p);
extern void idle_task_exit(void);
#else
static inline void idle_task_exit(void) {}
#endif
-extern void sched_idle_next(void);
-
#if defined(CONFIG_NO_HZ) && defined(CONFIG_SMP)
extern void wake_up_idle_cpu(int cpu);
#else
@@ -1885,8 +1916,6 @@ static inline void wake_up_idle_cpu(int cpu) { }
extern unsigned int sysctl_sched_latency;
extern unsigned int sysctl_sched_min_granularity;
extern unsigned int sysctl_sched_wakeup_granularity;
-extern unsigned int sysctl_sched_shares_ratelimit;
-extern unsigned int sysctl_sched_shares_thresh;
extern unsigned int sysctl_sched_child_runs_first;
enum sched_tunable_scaling {
@@ -1902,6 +1931,7 @@ extern unsigned int sysctl_sched_migration_cost;
extern unsigned int sysctl_sched_nr_migrate;
extern unsigned int sysctl_sched_time_avg;
extern unsigned int sysctl_timer_migration;
+extern unsigned int sysctl_sched_shares_window;
int sched_proc_update_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length,
@@ -1925,7 +1955,23 @@ int sched_rt_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos);
-extern unsigned int sysctl_sched_compat_yield;
+#ifdef CONFIG_SCHED_AUTOGROUP
+extern unsigned int sysctl_sched_autogroup_enabled;
+
+extern void sched_autogroup_create_attach(struct task_struct *p);
+extern void sched_autogroup_detach(struct task_struct *p);
+extern void sched_autogroup_fork(struct signal_struct *sig);
+extern void sched_autogroup_exit(struct signal_struct *sig);
+#ifdef CONFIG_PROC_FS
+extern void proc_sched_autogroup_show_task(struct task_struct *p, struct seq_file *m);
+extern int proc_sched_autogroup_set_nice(struct task_struct *p, int *nice);
+#endif
+#else
+static inline void sched_autogroup_create_attach(struct task_struct *p) { }
+static inline void sched_autogroup_detach(struct task_struct *p) { }
+static inline void sched_autogroup_fork(struct signal_struct *sig) { }
+static inline void sched_autogroup_exit(struct signal_struct *sig) { }
+#endif
#ifdef CONFIG_RT_MUTEXES
extern int rt_mutex_getprio(struct task_struct *p);
@@ -1939,15 +1985,17 @@ static inline int rt_mutex_getprio(struct task_struct *p)
# define rt_mutex_adjust_pi(p) do { } while (0)
#endif
+extern bool yield_to(struct task_struct *p, bool preempt);
extern void set_user_nice(struct task_struct *p, long nice);
extern int task_prio(const struct task_struct *p);
extern int task_nice(const struct task_struct *p);
extern int can_nice(const struct task_struct *p, const int nice);
extern int task_curr(const struct task_struct *p);
extern int idle_cpu(int cpu);
-extern int sched_setscheduler(struct task_struct *, int, struct sched_param *);
+extern int sched_setscheduler(struct task_struct *, int,
+ const struct sched_param *);
extern int sched_setscheduler_nocheck(struct task_struct *, int,
- struct sched_param *);
+ const struct sched_param *);
extern struct task_struct *idle_task(int cpu);
extern struct task_struct *curr_task(int cpu);
extern void set_curr_task(int cpu, struct task_struct *p);
@@ -2010,18 +2058,17 @@ extern void release_uids(struct user_namespace *ns);
#include <asm/current.h>
-extern void do_timer(unsigned long ticks);
+extern void xtime_update(unsigned long ticks);
extern int wake_up_state(struct task_struct *tsk, unsigned int state);
extern int wake_up_process(struct task_struct *tsk);
-extern void wake_up_new_task(struct task_struct *tsk,
- unsigned long clone_flags);
+extern void wake_up_new_task(struct task_struct *tsk);
#ifdef CONFIG_SMP
extern void kick_process(struct task_struct *tsk);
#else
static inline void kick_process(struct task_struct *tsk) { }
#endif
-extern void sched_fork(struct task_struct *p, int clone_flags);
+extern void sched_fork(struct task_struct *p);
extern void sched_dead(struct task_struct *p);
extern void proc_caches_init(void);
@@ -2146,8 +2193,10 @@ extern void set_task_comm(struct task_struct *tsk, char *from);
extern char *get_task_comm(char *to, struct task_struct *tsk);
#ifdef CONFIG_SMP
+void scheduler_ipi(void);
extern unsigned long wait_task_inactive(struct task_struct *, long match_state);
#else
+static inline void scheduler_ipi(void) { }
static inline unsigned long wait_task_inactive(struct task_struct *p,
long match_state)
{
@@ -2237,9 +2286,16 @@ static inline void task_unlock(struct task_struct *p)
spin_unlock(&p->alloc_lock);
}
-extern struct sighand_struct *lock_task_sighand(struct task_struct *tsk,
+extern struct sighand_struct *__lock_task_sighand(struct task_struct *tsk,
unsigned long *flags);
+#define lock_task_sighand(tsk, flags) \
+({ struct sighand_struct *__ss; \
+ __cond_lock(&(tsk)->sighand->siglock, \
+ (__ss = __lock_task_sighand(tsk, flags))); \
+ __ss; \
+}) \
+
static inline void unlock_task_sighand(struct task_struct *tsk,
unsigned long *flags)
{
@@ -2467,7 +2523,7 @@ extern void normalize_rt_tasks(void);
#ifdef CONFIG_CGROUP_SCHED
-extern struct task_group init_task_group;
+extern struct task_group root_task_group;
extern struct task_group *sched_create_group(struct task_group *parent);
extern void sched_destroy_group(struct task_group *tg);
@@ -2532,13 +2588,6 @@ static inline void inc_syscw(struct task_struct *tsk)
#define TASK_SIZE_OF(tsk) TASK_SIZE
#endif
-/*
- * Call the function if the target task is executing on a CPU right now:
- */
-extern void task_oncpu_function_call(struct task_struct *p,
- void (*func) (void *info), void *info);
-
-
#ifdef CONFIG_MM_OWNER
extern void mm_update_next_owner(struct mm_struct *mm);
extern void mm_init_owner(struct mm_struct *mm, struct task_struct *p);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-04-16 13:52:32 +0000