X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fsched.h;h=0a90cefb0b0dec33ba7452d9dc04a32f056e9d09;hb=5ec68b2e310437e99c297ba04e1afc5297aa6de1;hp=a06fc89cf6e5b8778c93ca53ebbb733948448948;hpb=c394cc9fbb367f87faa2228ec2eabacd2d4701c6;p=safe%2Fjmp%2Flinux-2.6

diff --git a/include/linux/sched.h b/include/linux/sched.h
index a06fc89..0a90cef 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -24,6 +24,8 @@
 #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 */
+#define CLONE_NEWUTS		0x04000000	/* New utsname group? */
+#define CLONE_NEWIPC		0x08000000	/* New ipcs */
 
 /*
  * Scheduling policies
@@ -118,7 +120,6 @@ extern unsigned long avenrun[];		/* Load averages */
 
 extern unsigned long total_forks;
 extern int nr_threads;
-extern int last_pid;
 DECLARE_PER_CPU(unsigned long, process_counts);
 extern int nr_processes(void);
 extern unsigned long nr_running(void);
@@ -193,7 +194,16 @@ extern void init_idle(struct task_struct *idle, int cpu);
 
 extern cpumask_t nohz_cpu_mask;
 
-extern void show_state(void);
+/*
+ * Only dump TASK_* tasks. (-1 for all tasks)
+ */
+extern void show_state_filter(unsigned long state_filter);
+
+static inline void show_state(void)
+{
+	show_state_filter(-1);
+}
+
 extern void show_regs(struct pt_regs *);
 
 /*
@@ -239,7 +249,7 @@ extern signed long schedule_timeout_interruptible(signed long timeout);
 extern signed long schedule_timeout_uninterruptible(signed long timeout);
 asmlinkage void schedule(void);
 
-struct namespace;
+struct nsproxy;
 
 /* Maximum number of active map areas.. This is a random (large) number */
 #define DEFAULT_MAX_MAP_COUNT	65536
@@ -337,15 +347,23 @@ struct mm_struct {
 
 	unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */
 
-	unsigned dumpable:2;
 	cpumask_t cpu_vm_mask;
 
 	/* Architecture-specific MM context */
 	mm_context_t context;
 
-	/* Token based thrashing protection. */
-	unsigned long swap_token_time;
-	char recent_pagein;
+	/* Swap token stuff */
+	/*
+	 * Last value of global fault stamp as seen by this process.
+	 * In other words, this value gives an indication of how long
+	 * it has been since this task got the token.
+	 * Look at mm/thrash.c
+	 */
+	unsigned int faultstamp;
+	unsigned int token_priority;
+	unsigned int last_interval;
+
+	unsigned char dumpable:2;
 
 	/* coredumping support */
 	int core_waiters;
@@ -465,7 +483,6 @@ struct signal_struct {
 	struct pacct_struct pacct;	/* per-process accounting information */
 #endif
 #ifdef CONFIG_TASKSTATS
-	spinlock_t stats_lock;
 	struct taskstats *stats;
 #endif
 };
@@ -624,9 +641,17 @@ enum idle_type
 #define SD_WAKE_BALANCE		64	/* Perform balancing at task wakeup */
 #define SD_SHARE_CPUPOWER	128	/* Domain members share cpu power */
 #define SD_POWERSAVINGS_BALANCE	256	/* Balance for power savings */
+#define SD_SHARE_PKG_RESOURCES	512	/* Domain members share cpu pkg resources */
+
+#define BALANCE_FOR_MC_POWER	\
+	(sched_smt_power_savings ? SD_POWERSAVINGS_BALANCE : 0)
 
-#define BALANCE_FOR_POWER	((sched_mc_power_savings || sched_smt_power_savings) \
-				 ? SD_POWERSAVINGS_BALANCE : 0)
+#define BALANCE_FOR_PKG_POWER	\
+	((sched_mc_power_savings || sched_smt_power_savings) ?	\
+	 SD_POWERSAVINGS_BALANCE : 0)
+
+#define test_sd_parent(sd, flag)	((sd->parent &&		\
+					 (sd->parent->flags & flag)) ? 1 : 0)
 
 
 struct sched_group {
@@ -643,6 +668,7 @@ struct sched_group {
 struct sched_domain {
 	/* These fields must be setup */
 	struct sched_domain *parent;	/* top domain must be null terminated */
+	struct sched_domain *child;	/* bottom domain must be null terminated */
 	struct sched_group *groups;	/* the balancing groups of the domain */
 	cpumask_t span;			/* span of all CPUs in this domain */
 	unsigned long min_interval;	/* Minimum balance interval ms */
@@ -710,7 +736,6 @@ extern unsigned int max_cache_size;
 
 
 struct io_context;			/* See blkdev.h */
-void exit_io_context(void);
 struct cpuset;
 
 #define NGROUPS_SMALL		32
@@ -755,6 +780,7 @@ static inline void prefetch_stack(struct task_struct *t) { }
 struct audit_context;		/* See audit.c */
 struct mempolicy;
 struct pipe_inode_info;
+struct uts_namespace;
 
 enum sleep_type {
 	SLEEP_NORMAL,
@@ -898,8 +924,8 @@ struct task_struct {
 	struct fs_struct *fs;
 /* open file information */
 	struct files_struct *files;
-/* namespace */
-	struct namespace *namespace;
+/* namespaces */
+	struct nsproxy *nsproxy;
 /* signal handlers */
 	struct signal_struct *signal;
 	struct sighand_struct *sighand;
@@ -982,10 +1008,10 @@ struct task_struct {
 	wait_queue_t *io_wait;
 /* i/o counters(bytes read/written, #syscalls */
 	u64 rchar, wchar, syscr, syscw;
-#if defined(CONFIG_BSD_PROCESS_ACCT)
+#if defined(CONFIG_TASK_XACCT)
 	u64 acct_rss_mem1;	/* accumulated rss usage */
 	u64 acct_vm_mem1;	/* accumulated virtual memory usage */
-	clock_t acct_stimexpd;	/* clock_t-converted stime since last update */
+	cputime_t acct_stimexpd;/* stime since last update */
 #endif
 #ifdef CONFIG_NUMA
   	struct mempolicy *mempolicy;
@@ -1021,6 +1047,26 @@ static inline pid_t process_group(struct task_struct *tsk)
 	return tsk->signal->pgrp;
 }
 
+static inline struct pid *task_pid(struct task_struct *task)
+{
+	return task->pids[PIDTYPE_PID].pid;
+}
+
+static inline struct pid *task_tgid(struct task_struct *task)
+{
+	return task->group_leader->pids[PIDTYPE_PID].pid;
+}
+
+static inline struct pid *task_pgrp(struct task_struct *task)
+{
+	return task->group_leader->pids[PIDTYPE_PGID].pid;
+}
+
+static inline struct pid *task_session(struct task_struct *task)
+{
+	return task->group_leader->pids[PIDTYPE_SID].pid;
+}
+
 /**
  * pid_alive - check that a task structure is not stale
  * @p: Task structure to be checked.
@@ -1035,15 +1081,18 @@ static inline int pid_alive(struct task_struct *p)
 }
 
 /**
- * is_init - check if a task structure is the first user space
- *	     task the kernel created.
- * @p: Task structure to be checked.
+ * is_init - check if a task structure is init
+ * @tsk: Task structure to be checked.
+ *
+ * Check if a task structure is the first user space task the kernel created.
  */
 static inline int is_init(struct task_struct *tsk)
 {
 	return tsk->pid == 1;
 }
 
+extern struct pid *cad_pid;
+
 extern void free_task(struct task_struct *tsk);
 #define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
 
@@ -1248,10 +1297,15 @@ extern int send_sig_info(int, struct siginfo *, struct task_struct *);
 extern int send_group_sig_info(int, struct siginfo *, struct task_struct *);
 extern int force_sigsegv(int, struct task_struct *);
 extern int force_sig_info(int, struct siginfo *, struct task_struct *);
+extern int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
+extern int kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
+extern int kill_pid_info(int sig, struct siginfo *info, struct pid *pid);
+extern int kill_pid_info_as_uid(int, struct siginfo *, struct pid *, uid_t, uid_t, u32);
+extern int kill_pgrp(struct pid *pid, int sig, int priv);
+extern int kill_pid(struct pid *pid, int sig, int priv);
 extern int __kill_pg_info(int sig, struct siginfo *info, pid_t pgrp);
 extern int kill_pg_info(int, struct siginfo *, pid_t);
 extern int kill_proc_info(int, struct siginfo *, pid_t);
-extern int kill_proc_info_as_uid(int, struct siginfo *, pid_t, uid_t, uid_t, u32);
 extern void do_notify_parent(struct task_struct *, int);
 extern void force_sig(int, struct task_struct *);
 extern void force_sig_specific(int, struct task_struct *);
@@ -1266,6 +1320,11 @@ extern int send_group_sigqueue(int, struct sigqueue *,  struct task_struct *);
 extern int do_sigaction(int, struct k_sigaction *, struct k_sigaction *);
 extern int do_sigaltstack(const stack_t __user *, stack_t __user *, unsigned long);
 
+static inline int kill_cad_pid(int sig, int priv)
+{
+	return kill_pid(cad_pid, sig, priv);
+}
+
 /* These can be the second arg to send_sig_info/send_group_sig_info.  */
 #define SEND_SIG_NOINFO ((struct siginfo *) 0)
 #define SEND_SIG_PRIV	((struct siginfo *) 1)
@@ -1359,6 +1418,17 @@ extern void wait_task_inactive(struct task_struct * p);
 /* de_thread depends on thread_group_leader not being a pid based check */
 #define thread_group_leader(p)	(p == p->group_leader)
 
+/* Do to the insanities of de_thread it is possible for a process
+ * to have the pid of the thread group leader without actually being
+ * the thread group leader.  For iteration through the pids in proc
+ * all we care about is that we have a task with the appropriate
+ * pid, we don't actually care if we have the right task.
+ */
+static inline int has_group_leader_pid(struct task_struct *p)
+{
+	return p->pid == p->tgid;
+}
+
 static inline struct task_struct *next_thread(const struct task_struct *p)
 {
 	return list_entry(rcu_dereference(p->thread_group.next),
@@ -1557,87 +1627,6 @@ extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls);
 
 extern void normalize_rt_tasks(void);
 
-#ifdef CONFIG_PM
-/*
- * 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;
-}
-
-/*
- * Sometimes we may need to cancel the previous 'freeze' request
- */
-static inline void do_not_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(void)
-{
-	if (freezing(current)) {
-		refrigerator();
-		return 1;
-	} else
-		return 0;
-}
-#else
-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(void) { return 0; }
-
-#endif /* CONFIG_PM */
 #endif /* __KERNEL__ */
 
 #endif