Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched

[pandora-kernel.git] / kernel / sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index 1253442..ed90be4 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -266,7 +266,8 @@ struct rt_rq {
  * acquire operations must be ordered by ascending &runqueue.
  */
 struct rq {
-       spinlock_t lock;        /* runqueue lock */
+       /* runqueue lock: */
+       spinlock_t lock;
 
        /*
         * nr_running and cpu_load should be in the same cacheline because
@@ -279,13 +280,15 @@ struct rq {
 #ifdef CONFIG_NO_HZ
        unsigned char in_nohz_recently;
 #endif
-       struct load_weight load;        /* capture load from *all* tasks on this cpu */
+       /* capture load from *all* tasks on this cpu: */
+       struct load_weight load;
        unsigned long nr_load_updates;
        u64 nr_switches;
 
        struct cfs_rq cfs;
 #ifdef CONFIG_FAIR_GROUP_SCHED
-       struct list_head leaf_cfs_rq_list; /* list of leaf cfs_rq on this cpu */
+       /* list of leaf cfs_rq on this cpu: */
+       struct list_head leaf_cfs_rq_list;
 #endif
        struct rt_rq  rt;
 
@@ -317,7 +320,8 @@ struct rq {
        /* For active balancing */
        int active_balance;
        int push_cpu;
-       int cpu;                /* cpu of this runqueue */
+       /* cpu of this runqueue: */
+       int cpu;
 
        struct task_struct *migration_thread;
        struct list_head migration_queue;
@@ -328,22 +332,22 @@ struct rq {
        struct sched_info rq_sched_info;
 
        /* sys_sched_yield() stats */
-       unsigned long yld_exp_empty;
-       unsigned long yld_act_empty;
-       unsigned long yld_both_empty;
-       unsigned long yld_count;
+       unsigned int yld_exp_empty;
+       unsigned int yld_act_empty;
+       unsigned int yld_both_empty;
+       unsigned int yld_count;
 
        /* schedule() stats */
-       unsigned long sched_switch;
-       unsigned long sched_count;
-       unsigned long sched_goidle;
+       unsigned int sched_switch;
+       unsigned int sched_count;
+       unsigned int sched_goidle;
 
        /* try_to_wake_up() stats */
-       unsigned long ttwu_count;
-       unsigned long ttwu_local;
+       unsigned int ttwu_count;
+       unsigned int ttwu_local;
 
        /* BKL stats */
-       unsigned long bkl_count;
+       unsigned int bkl_count;
 #endif
        struct lock_class_key rq_lock_key;
 };
@@ -449,12 +453,12 @@ enum {
 };
 
 const_debug unsigned int sysctl_sched_features =
-               SCHED_FEAT_NEW_FAIR_SLEEPERS    *1 |
-               SCHED_FEAT_START_DEBIT          *1 |
-               SCHED_FEAT_TREE_AVG             *0 |
-               SCHED_FEAT_APPROX_AVG           *0 |
-               SCHED_FEAT_WAKEUP_PREEMPT       *1 |
-               SCHED_FEAT_PREEMPT_RESTRICT     *1;
+               SCHED_FEAT_NEW_FAIR_SLEEPERS    * 1 |
+               SCHED_FEAT_START_DEBIT          * 1 |
+               SCHED_FEAT_TREE_AVG             * 0 |
+               SCHED_FEAT_APPROX_AVG           * 0 |
+               SCHED_FEAT_WAKEUP_PREEMPT       * 1 |
+               SCHED_FEAT_PREEMPT_RESTRICT     * 1;
 
 #define sched_feat(x) (sysctl_sched_features & SCHED_FEAT_##x)
 
@@ -3880,7 +3884,10 @@ EXPORT_SYMBOL(wait_for_completion_timeout);
 
 int __sched wait_for_completion_interruptible(struct completion *x)
 {
-       return wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_INTERRUPTIBLE);
+       long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_INTERRUPTIBLE);
+       if (t == -ERESTARTSYS)
+               return t;
+       return 0;
 }
 EXPORT_SYMBOL(wait_for_completion_interruptible);
 
@@ -4815,18 +4822,18 @@ static void show_task(struct task_struct *p)
        unsigned state;
 
        state = p->state ? __ffs(p->state) + 1 : 0;
-       printk("%-13.13s %c", p->comm,
+       printk(KERN_INFO "%-13.13s %c", p->comm,
                state < sizeof(stat_nam) - 1 ? stat_nam[state] : '?');
 #if BITS_PER_LONG == 32
        if (state == TASK_RUNNING)
-               printk(" running  ");
+               printk(KERN_CONT " running  ");
        else
-               printk(" %08lx ", thread_saved_pc(p));
+               printk(KERN_CONT " %08lx ", thread_saved_pc(p));
 #else
        if (state == TASK_RUNNING)
-               printk("  running task    ");
+               printk(KERN_CONT "  running task    ");
        else
-               printk(" %016lx ", thread_saved_pc(p));
+               printk(KERN_CONT " %016lx ", thread_saved_pc(p));
 #endif
 #ifdef CONFIG_DEBUG_STACK_USAGE
        {
@@ -4836,7 +4843,7 @@ static void show_task(struct task_struct *p)
                free = (unsigned long)n - (unsigned long)end_of_stack(p);
        }
 #endif
-       printk("%5lu %5d %6d\n", free, p->pid, p->parent->pid);
+       printk(KERN_CONT "%5lu %5d %6d\n", free, p->pid, p->parent->pid);
 
        if (state != TASK_RUNNING)
                show_stack(p, NULL);
@@ -5385,7 +5392,7 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
        return table;
 }
 
-static ctl_table *sd_alloc_ctl_cpu_table(int cpu)
+static ctl_table * sd_alloc_ctl_cpu_table(int cpu)
 {
        struct ctl_table *entry, *table;
        struct sched_domain *sd;
@@ -5619,20 +5626,20 @@ static void sched_domain_debug(struct sched_domain *sd, int cpu)
                        }
 
                        if (!group->__cpu_power) {
-                               printk("\n");
+                               printk(KERN_CONT "\n");
                                printk(KERN_ERR "ERROR: domain->cpu_power not "
                                                "set\n");
                                break;
                        }
 
                        if (!cpus_weight(group->cpumask)) {
-                               printk("\n");
+                               printk(KERN_CONT "\n");
                                printk(KERN_ERR "ERROR: empty group\n");
                                break;
                        }
 
                        if (cpus_intersects(groupmask, group->cpumask)) {
-                               printk("\n");
+                               printk(KERN_CONT "\n");
                                printk(KERN_ERR "ERROR: repeated CPUs\n");
                                break;
                        }
@@ -5640,11 +5647,11 @@ static void sched_domain_debug(struct sched_domain *sd, int cpu)
                        cpus_or(groupmask, groupmask, group->cpumask);
 
                        cpumask_scnprintf(str, NR_CPUS, group->cpumask);
-                       printk(" %s", str);
+                       printk(KERN_CONT " %s", str);
 
                        group = group->next;
                } while (group != sd->groups);
-               printk("\n");
+               printk(KERN_CONT "\n");
 
                if (!cpus_equal(sd->span, groupmask))
                        printk(KERN_ERR "ERROR: groups don't span "