Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 34 insertions, 33 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 62e6314382f..d04186d8cc6 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -35,6 +35,7 @@
 #include <linux/topology.h>
 #include <linux/seccomp.h>
 #include <linux/rcupdate.h>
+#include <linux/futex.h>
 
 #include <linux/auxvec.h>	/* For AT_VECTOR_SIZE */
 
@@ -206,11 +207,11 @@ 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 softlockup_tick(void);
 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 softlockup_tick(void)
 {
 }
 static inline void spawn_softlockup_task(void)
@@ -354,16 +355,8 @@ struct sighand_struct {
 	atomic_t		count;
 	struct k_sigaction	action[_NSIG];
 	spinlock_t		siglock;
-	struct rcu_head		rcu;
 };
 
-extern void sighand_free_cb(struct rcu_head *rhp);
-
-static inline void sighand_free(struct sighand_struct *sp)
-{
-	call_rcu(&sp->rcu, sighand_free_cb);
-}
-
 /*
  * NOTE! "signal_struct" does not have it's own
  * locking, because a shared signal_struct always
@@ -402,6 +395,7 @@ struct signal_struct {
 
 	/* ITIMER_REAL timer for the process */
 	struct hrtimer real_timer;
+	struct task_struct *tsk;
 	ktime_t it_real_incr;
 
 	/* ITIMER_PROF and ITIMER_VIRTUAL timers for the process */
@@ -706,6 +700,7 @@ struct task_struct {
 	prio_array_t *array;
 
 	unsigned short ioprio;
+	unsigned int btrace_seq;
 
 	unsigned long sleep_avg;
 	unsigned long long timestamp, last_ran;
@@ -757,6 +752,7 @@ struct task_struct {
 
 	/* PID/PID hash table linkage. */
 	struct pid pids[PIDTYPE_MAX];
+	struct list_head thread_group;
 
 	struct completion *vfork_done;		/* for vfork() */
 	int __user *set_child_tid;		/* CLONE_CHILD_SETTID */
@@ -868,7 +864,13 @@ struct task_struct {
 	struct cpuset *cpuset;
 	nodemask_t mems_allowed;
 	int cpuset_mems_generation;
+	int cpuset_mem_spread_rotor;
+#endif
+	struct robust_list_head __user *robust_list;
+#ifdef CONFIG_COMPAT
+	struct compat_robust_list_head __user *compat_robust_list;
 #endif
+
 	atomic_t fs_excl;	/* holding fs exclusive resources */
 	struct rcu_head rcu;
 };
@@ -928,6 +930,9 @@ static inline void put_task_struct(struct task_struct *t)
 #define PF_BORROWED_MM	0x00400000	/* I am a kthread doing use_mm */
 #define PF_RANDOMIZE	0x00800000	/* randomize virtual address space */
 #define PF_SWAPWRITE	0x01000000	/* Allowed to write to swap */
+#define PF_SPREAD_PAGE	0x04000000	/* Spread page cache over cpuset */
+#define PF_SPREAD_SLAB	0x08000000	/* Spread some slab caches over cpuset */
+#define PF_MEMPOLICY	0x10000000	/* Non-default NUMA mempolicy */
 
 /*
  * Only the _current_ task can read/write to tsk->flags, but other
@@ -1089,7 +1094,6 @@ extern void force_sig_specific(int, struct task_struct *);
 extern int send_sig(int, struct task_struct *, int);
 extern void zap_other_threads(struct task_struct *p);
 extern int kill_pg(pid_t, int, int);
-extern int kill_sl(pid_t, int, int);
 extern int kill_proc(pid_t, int, int);
 extern struct sigqueue *sigqueue_alloc(void);
 extern void sigqueue_free(struct sigqueue *);
@@ -1146,10 +1150,8 @@ extern void flush_thread(void);
 extern void exit_thread(void);
 
 extern void exit_files(struct task_struct *);
-extern void exit_signal(struct task_struct *);
-extern void __exit_signal(struct task_struct *);
-extern void exit_sighand(struct task_struct *);
-extern void __exit_sighand(struct task_struct *);
+extern void __cleanup_signal(struct signal_struct *);
+extern void __cleanup_sighand(struct sighand_struct *);
 extern void exit_itimers(struct signal_struct *);
 
 extern NORET_TYPE void do_group_exit(int);
@@ -1173,19 +1175,7 @@ extern void wait_task_inactive(task_t * p);
 #endif
 
 #define remove_parent(p)	list_del_init(&(p)->sibling)
-#define add_parent(p, parent)	list_add_tail(&(p)->sibling,&(parent)->children)
-
-#define REMOVE_LINKS(p) do {					\
-	if (thread_group_leader(p))				\
-		list_del_init(&(p)->tasks);			\
-	remove_parent(p);					\
-	} while (0)
-
-#define SET_LINKS(p) do {					\
-	if (thread_group_leader(p))				\
-		list_add_tail(&(p)->tasks,&init_task.tasks);	\
-	add_parent(p, (p)->parent);				\
-	} while (0)
+#define add_parent(p)		list_add_tail(&(p)->sibling,&(p)->parent->children)
 
 #define next_task(p)	list_entry((p)->tasks.next, struct task_struct, tasks)
 #define prev_task(p)	list_entry((p)->tasks.prev, struct task_struct, tasks)
@@ -1203,20 +1193,22 @@ extern void wait_task_inactive(task_t * p);
 #define while_each_thread(g, t) \
 	while ((t = next_thread(t)) != g)
 
-extern task_t * FASTCALL(next_thread(const task_t *p));
-
 #define thread_group_leader(p)	(p->pid == p->tgid)
 
+static inline task_t *next_thread(task_t *p)
+{
+	return list_entry(rcu_dereference(p->thread_group.next),
+				task_t, thread_group);
+}
+
 static inline int thread_group_empty(task_t *p)
 {
-	return list_empty(&p->pids[PIDTYPE_TGID].pid_list);
+	return list_empty(&p->thread_group);
 }
 
 #define delay_group_leader(p) \
 		(thread_group_leader(p) && !thread_group_empty(p))
 
-extern void unhash_process(struct task_struct *p);
-
 /*
  * Protects ->fs, ->files, ->mm, ->ptrace, ->group_info, ->comm, keyring
  * subscriptions and synchronises with wait4().  Also used in procfs.  Also
@@ -1236,6 +1228,15 @@ 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,
+							unsigned long *flags);
+
+static inline void unlock_task_sighand(struct task_struct *tsk,
+						unsigned long *flags)
+{
+	spin_unlock_irqrestore(&tsk->sighand->siglock, *flags);
+}
+
 #ifndef __HAVE_THREAD_FUNCTIONS
 
 #define task_thread_info(task) (task)->thread_info