#include <linux/topology.h>
#include <linux/seccomp.h>
+#include <linux/auxvec.h> /* For AT_VECTOR_SIZE */
+
struct exec_domain;
/*
#define TASK_TRACED 8
#define EXIT_ZOMBIE 16
#define EXIT_DEAD 32
+#define TASK_NONINTERACTIVE 64
#define __set_task_state(tsk, state_value) \
do { (tsk)->state = (state_value); } while (0)
extern void update_process_times(int user);
extern void scheduler_tick(void);
+#ifdef CONFIG_DETECT_SOFTLOCKUP
+extern void softlockup_tick(struct pt_regs *regs);
+extern void spawn_softlockup_task(void);
+extern void touch_softlockup_watchdog(void);
+#else
+static inline void softlockup_tick(struct pt_regs *regs)
+{
+}
+static inline void spawn_softlockup_task(void)
+{
+}
+static inline void touch_softlockup_watchdog(void)
+{
+}
+#endif
+
+
/* Attach to any functions which should be ignored in wchan output. */
#define __sched __attribute__((__section__(".sched.text")))
/* Is this address in the __sched functions? */
#define MAX_SCHEDULE_TIMEOUT LONG_MAX
extern signed long FASTCALL(schedule_timeout(signed long timeout));
+extern signed long schedule_timeout_interruptible(signed long timeout);
+extern signed long schedule_timeout_uninterruptible(signed long timeout);
asmlinkage void schedule(void);
struct namespace;
mm_counter_t _rss;
mm_counter_t _anon_rss;
- unsigned long saved_auxv[42]; /* for /proc/PID/auxv */
+ unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */
- unsigned dumpable:1;
+ unsigned dumpable:2;
cpumask_t cpu_vm_mask;
/* Architecture-specific MM context */
#endif
};
+/* Context switch must be unlocked if interrupts are to be enabled */
+#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
+# define __ARCH_WANT_UNLOCKED_CTXSW
+#endif
+
/*
* Bits in flags field of signal_struct.
*/
atomic_t processes; /* How many processes does this user have? */
atomic_t files; /* How many open files does this user have? */
atomic_t sigpending; /* How many pending signals does this user have? */
+#ifdef CONFIG_INOTIFY
+ 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
/* protected by mq_lock */
unsigned long mq_bytes; /* How many bytes can be allocated to mqueue? */
unsigned long locked_shm; /* How many pages of mlocked shm ? */
#define SD_LOAD_BALANCE 1 /* Do load balancing on this domain. */
#define SD_BALANCE_NEWIDLE 2 /* Balance when about to become idle */
#define SD_BALANCE_EXEC 4 /* Balance on exec */
-#define SD_WAKE_IDLE 8 /* Wake to idle CPU on task wakeup */
-#define SD_WAKE_AFFINE 16 /* Wake task to waking CPU */
-#define SD_WAKE_BALANCE 32 /* Perform balancing at task wakeup */
-#define SD_SHARE_CPUPOWER 64 /* Domain members share cpu power */
+#define SD_BALANCE_FORK 8 /* Balance on fork, clone */
+#define SD_WAKE_IDLE 16 /* Wake to idle CPU on task wakeup */
+#define SD_WAKE_AFFINE 32 /* Wake task to waking CPU */
+#define SD_WAKE_BALANCE 64 /* Perform balancing at task wakeup */
+#define SD_SHARE_CPUPOWER 128 /* Domain members share cpu power */
struct sched_group {
struct sched_group *next; /* Must be a circular list */
unsigned long long cache_hot_time; /* Task considered cache hot (ns) */
unsigned int cache_nice_tries; /* Leave cache hot tasks for # tries */
unsigned int per_cpu_gain; /* CPU % gained by adding domain cpus */
+ unsigned int busy_idx;
+ unsigned int idle_idx;
+ unsigned int newidle_idx;
+ unsigned int wake_idx;
+ unsigned int forkexec_idx;
int flags; /* See SD_* */
/* Runtime fields. */
unsigned long alb_failed;
unsigned long alb_pushed;
- /* sched_balance_exec() stats */
- unsigned long sbe_attempts;
+ /* SD_BALANCE_EXEC stats */
+ unsigned long sbe_cnt;
+ unsigned long sbe_balanced;
unsigned long sbe_pushed;
+ /* SD_BALANCE_FORK stats */
+ unsigned long sbf_cnt;
+ unsigned long sbf_balanced;
+ unsigned long sbf_pushed;
+
/* try_to_wake_up() stats */
unsigned long ttwu_wake_remote;
unsigned long ttwu_move_affine;
#endif
};
-#ifdef ARCH_HAS_SCHED_DOMAIN
-/* Useful helpers that arch setup code may use. Defined in kernel/sched.c */
-extern cpumask_t cpu_isolated_map;
-extern void init_sched_build_groups(struct sched_group groups[],
- cpumask_t span, int (*group_fn)(int cpu));
-extern void cpu_attach_domain(struct sched_domain *sd, int cpu);
-#endif /* ARCH_HAS_SCHED_DOMAIN */
+extern void partition_sched_domains(cpumask_t *partition1,
+ cpumask_t *partition2);
#endif /* CONFIG_SMP */
groups_free(group_info); \
} while (0)
-struct group_info *groups_alloc(int gidsetsize);
-void groups_free(struct group_info *group_info);
-int set_current_groups(struct group_info *group_info);
+extern struct group_info *groups_alloc(int gidsetsize);
+extern void groups_free(struct group_info *group_info);
+extern int set_current_groups(struct group_info *group_info);
+extern int groups_search(struct group_info *group_info, gid_t grp);
/* access the groups "array" with this macro */
#define GROUP_AT(gi, i) \
((gi)->blocks[(i)/NGROUPS_PER_BLOCK][(i)%NGROUPS_PER_BLOCK])
+#ifdef ARCH_HAS_PREFETCH_SWITCH_STACK
+extern void prefetch_stack(struct task_struct*);
+#else
+static inline void prefetch_stack(struct task_struct *t) { }
+#endif
struct audit_context; /* See audit.c */
struct mempolicy;
int lock_depth; /* BKL lock depth */
+#if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW)
+ int oncpu;
+#endif
int prio, static_prio;
struct list_head run_list;
prio_array_t *array;
+ unsigned short ioprio;
+
unsigned long sleep_avg;
unsigned long long timestamp, last_ran;
unsigned long long sched_time; /* sched_clock time spent running */
struct user_struct *user;
#ifdef CONFIG_KEYS
struct key *thread_keyring; /* keyring private to this thread */
+ unsigned char jit_keyring; /* default keyring to attach requested keys to */
#endif
int oomkilladj; /* OOM kill score adjustment (bit shift). */
char comm[TASK_COMM_LEN]; /* executable name excluding path
spinlock_t alloc_lock;
/* Protection of proc_dentry: nesting proc_lock, dcache_lock, write_lock_irq(&tasklist_lock); */
spinlock_t proc_lock;
-/* context-switch lock */
- spinlock_t switch_lock;
/* journalling filesystem info */
void *journal_info;
short il_next;
#endif
#ifdef CONFIG_CPUSETS
+ short cpuset_sem_nest_depth;
struct cpuset *cpuset;
nodemask_t mems_allowed;
int cpuset_mems_generation;
#endif
+ atomic_t fs_excl; /* holding fs exclusive resources */
};
static inline pid_t process_group(struct task_struct *tsk)
#else
static inline void kick_process(struct task_struct *tsk) { }
#endif
-extern void FASTCALL(sched_fork(task_t * p));
+extern void FASTCALL(sched_fork(task_t * p, int clone_flags));
extern void FASTCALL(sched_exit(task_t * p));
extern int in_group_p(gid_t);
/*
* Protects ->fs, ->files, ->mm, ->ptrace, ->group_info, ->comm, keyring
- * subscriptions and synchronises with wait4(). Also used in procfs.
+ * subscriptions and synchronises with wait4(). Also used in procfs. Also
+ * pins the final release of task.io_context.
*
* Nests both inside and outside of read_lock(&tasklist_lock).
* It must not be nested with write_lock_irq(&tasklist_lock),
#endif
-/* try_to_freeze
- *
- * Checks whether we need to enter the refrigerator
- * and returns 1 if we did so.
- */
#ifdef CONFIG_PM
-extern void refrigerator(unsigned long);
+/*
+ * Check if a process has been frozen
+ */
+static inline int frozen(struct task_struct *p)
+{
+ return p->flags & PF_FROZEN;
+}
+
+/*
+ * Check if there is a request to freeze a process
+ */
+static inline int freezing(struct task_struct *p)
+{
+ return p->flags & PF_FREEZE;
+}
+
+/*
+ * Request that a process be frozen
+ * FIXME: SMP problem. We may not modify other process' flags!
+ */
+static inline void freeze(struct task_struct *p)
+{
+ p->flags |= PF_FREEZE;
+}
+
+/*
+ * Wake up a frozen process
+ */
+static inline int thaw_process(struct task_struct *p)
+{
+ if (frozen(p)) {
+ p->flags &= ~PF_FROZEN;
+ wake_up_process(p);
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * freezing is complete, mark process as frozen
+ */
+static inline void frozen_process(struct task_struct *p)
+{
+ p->flags = (p->flags & ~PF_FREEZE) | PF_FROZEN;
+}
+
+extern void refrigerator(void);
extern int freeze_processes(void);
extern void thaw_processes(void);
-static inline int try_to_freeze(unsigned long refrigerator_flags)
+static inline int try_to_freeze(void)
{
- if (unlikely(current->flags & PF_FREEZE)) {
- refrigerator(refrigerator_flags);
+ if (freezing(current)) {
+ refrigerator();
return 1;
} else
return 0;
}
#else
-static inline void refrigerator(unsigned long flag) {}
+static inline int frozen(struct task_struct *p) { return 0; }
+static inline int freezing(struct task_struct *p) { return 0; }
+static inline void freeze(struct task_struct *p) { BUG(); }
+static inline int thaw_process(struct task_struct *p) { return 1; }
+static inline void frozen_process(struct task_struct *p) { BUG(); }
+
+static inline void refrigerator(void) {}
static inline int freeze_processes(void) { BUG(); return 0; }
static inline void thaw_processes(void) {}
-static inline int try_to_freeze(unsigned long refrigerator_flags)
-{
- return 0;
-}
+static inline int try_to_freeze(void) { return 0; }
+
#endif /* CONFIG_PM */
#endif /* __KERNEL__ */
git.openpandora.org / pandora-kernel.git / blobdiff