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

* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: (140 commits)
  sched: sync wakeups preempt too
  sched: affine sync wakeups
  sched: guest CPU accounting: maintain guest state in KVM
  sched: guest CPU accounting: maintain stats in account_system_time()
  sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fields
  sched: guest CPU accounting: add guest-CPU /proc/stat field
  sched: domain sysctl fixes: add terminator comment
  sched: domain sysctl fixes: do not crash on allocation failure
  sched: domain sysctl fixes: unregister the sysctl table before domains
  sched: domain sysctl fixes: use for_each_online_cpu()
  sched: domain sysctl fixes: use kcalloc()
  Make scheduler debug file operations const
  sched: enable wake-idle on CONFIG_SCHED_MC=y
  sched: reintroduce topology.h tunings
  sched: allow the immediate migration of cache-cold tasks
  sched: debug, improve migration statistics
  sched: debug: increase width of debug line
  sched: activate task_hot() only on fair-scheduled tasks
  sched: reintroduce cache-hot affinity
  sched: speed up context-switches a bit
  ...

4 files changed, 31 insertions, 12 deletions

diff --git a/fs/pipe.c b/fs/pipe.c
index 6b3d91a691bf..e66ec48e95d8 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -45,8 +45,7 @@ void pipe_wait(struct pipe_inode_info *pipe)
          * Pipes are system-local resources, so sleeping on them
          * is considered a noninteractive wait:
          */
-        prepare_to_wait(&pipe->wait, &wait,
-                        TASK_INTERRUPTIBLE | TASK_NONINTERACTIVE);
+        prepare_to_wait(&pipe->wait, &wait, TASK_INTERRUPTIBLE);
         if (pipe->inode)
                 mutex_unlock(&pipe->inode->i_mutex);
         schedule();
@@ -383,7 +382,7 @@ redo:
 
         /* Signal writers asynchronously that there is more room. */
         if (do_wakeup) {
-                wake_up_interruptible(&pipe->wait);
+                wake_up_interruptible_sync(&pipe->wait);
                 kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
         }
         if (ret > 0)
@@ -556,7 +555,7 @@ redo2:
 out:
         mutex_unlock(&inode->i_mutex);
         if (do_wakeup) {
-                wake_up_interruptible(&pipe->wait);
+                wake_up_interruptible_sync(&pipe->wait);
                 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
         }
         if (ret > 0)
@@ -650,7 +649,7 @@ pipe_release(struct inode *inode, int decr, int decw)
         if (!pipe->readers && !pipe->writers) {
                 free_pipe_info(inode);
         } else {
-                wake_up_interruptible(&pipe->wait);
+                wake_up_interruptible_sync(&pipe->wait);
                 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
                 kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
         }
diff --git a/fs/proc/array.c b/fs/proc/array.c
index ee4814dd98f9..27b59f5f3bd1 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -370,6 +370,11 @@ static cputime_t task_stime(struct task_struct *p)
 }
 #endif
 
+static cputime_t task_gtime(struct task_struct *p)
+{
+        return p->gtime;
+}
+
 static int do_task_stat(struct task_struct *task, char *buffer, int whole)
 {
         unsigned long vsize, eip, esp, wchan = ~0UL;
@@ -385,6 +390,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
         unsigned long cmin_flt = 0, cmaj_flt = 0;
         unsigned long  min_flt = 0,  maj_flt = 0;
         cputime_t cutime, cstime, utime, stime;
+        cputime_t cgtime, gtime;
         unsigned long rsslim = 0;
         char tcomm[sizeof(task->comm)];
         unsigned long flags;
@@ -403,6 +409,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
         sigemptyset(&sigign);
         sigemptyset(&sigcatch);
         cutime = cstime = utime = stime = cputime_zero;
+        cgtime = gtime = cputime_zero;
 
         rcu_read_lock();
         if (lock_task_sighand(task, &flags)) {
@@ -420,6 +427,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
                 cmaj_flt = sig->cmaj_flt;
                 cutime = sig->cutime;
                 cstime = sig->cstime;
+                cgtime = sig->cgtime;
                 rsslim = sig->rlim[RLIMIT_RSS].rlim_cur;
 
                 /* add up live thread stats at the group level */
@@ -430,6 +438,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
                                 maj_flt += t->maj_flt;
                                 utime = cputime_add(utime, task_utime(t));
                                 stime = cputime_add(stime, task_stime(t));
+                                gtime = cputime_add(gtime, task_gtime(t));
                                 t = next_thread(t);
                         } while (t != task);
 
@@ -437,6 +446,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
                         maj_flt += sig->maj_flt;
                         utime = cputime_add(utime, sig->utime);
                         stime = cputime_add(stime, sig->stime);
+                        gtime += cputime_add(gtime, sig->gtime);
                 }
 
                 sid = signal_session(sig);
@@ -454,6 +464,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
                 maj_flt = task->maj_flt;
                 utime = task_utime(task);
                 stime = task_stime(task);
+                gtime = task_gtime(task);
         }
 
         /* scale priority and nice values from timeslices to -20..20 */
@@ -471,7 +482,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
 
         res = sprintf(buffer, "%d (%s) %c %d %d %d %d %d %u %lu \
 %lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
-%lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu\n",
+%lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu %lu %ld\n",
                 task->pid,
                 tcomm,
                 state,
@@ -516,7 +527,9 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
                 task_cpu(task),
                 task->rt_priority,
                 task->policy,
-                (unsigned long long)delayacct_blkio_ticks(task));
+                (unsigned long long)delayacct_blkio_ticks(task),
+                cputime_to_clock_t(gtime),
+                cputime_to_clock_t(cgtime));
         if (mm)
                 mmput(mm);
         return res;
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 19489b0d5554..e5d0953d4db1 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -304,7 +304,7 @@ static int proc_pid_schedstat(struct task_struct *task, char *buffer)
         return sprintf(buffer, "%llu %llu %lu\n",
                         task->sched_info.cpu_time,
                         task->sched_info.run_delay,
-                        task->sched_info.pcnt);
+                        task->sched_info.pcount);
 }
 #endif
 
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index bee251cb87c8..b872a01ad3af 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -443,6 +443,7 @@ static int show_stat(struct seq_file *p, void *v)
         int i;
         unsigned long jif;
         cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
+        cputime64_t guest;
         u64 sum = 0;
         struct timespec boottime;
         unsigned int *per_irq_sum;
@@ -453,6 +454,7 @@ static int show_stat(struct seq_file *p, void *v)
 
         user = nice = system = idle = iowait =
                 irq = softirq = steal = cputime64_zero;
+        guest = cputime64_zero;
         getboottime(&boottime);
         jif = boottime.tv_sec;
 
@@ -467,6 +469,7 @@ static int show_stat(struct seq_file *p, void *v)
                 irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
                 softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
                 steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
+                guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
                 for (j = 0; j < NR_IRQS; j++) {
                         unsigned int temp = kstat_cpu(i).irqs[j];
                         sum += temp;
@@ -474,7 +477,7 @@ static int show_stat(struct seq_file *p, void *v)
                 }
         }
 
-        seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu %llu\n",
+        seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
                 (unsigned long long)cputime64_to_clock_t(user),
                 (unsigned long long)cputime64_to_clock_t(nice),
                 (unsigned long long)cputime64_to_clock_t(system),
@@ -482,7 +485,8 @@ static int show_stat(struct seq_file *p, void *v)
                 (unsigned long long)cputime64_to_clock_t(iowait),
                 (unsigned long long)cputime64_to_clock_t(irq),
                 (unsigned long long)cputime64_to_clock_t(softirq),
-                (unsigned long long)cputime64_to_clock_t(steal));
+                (unsigned long long)cputime64_to_clock_t(steal),
+                (unsigned long long)cputime64_to_clock_t(guest));
         for_each_online_cpu(i) {
 
                 /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
@@ -494,7 +498,9 @@ static int show_stat(struct seq_file *p, void *v)
                 irq = kstat_cpu(i).cpustat.irq;
                 softirq = kstat_cpu(i).cpustat.softirq;
                 steal = kstat_cpu(i).cpustat.steal;
-                seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n",
+                guest = kstat_cpu(i).cpustat.guest;
+                seq_printf(p,
+                        "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
                         i,
                         (unsigned long long)cputime64_to_clock_t(user),
                         (unsigned long long)cputime64_to_clock_t(nice),
@@ -503,7 +509,8 @@ static int show_stat(struct seq_file *p, void *v)
                         (unsigned long long)cputime64_to_clock_t(iowait),
                         (unsigned long long)cputime64_to_clock_t(irq),
                         (unsigned long long)cputime64_to_clock_t(softirq),
-                        (unsigned long long)cputime64_to_clock_t(steal));
+                        (unsigned long long)cputime64_to_clock_t(steal),
+                        (unsigned long long)cputime64_to_clock_t(guest));
         }
         seq_printf(p, "intr %llu", (unsigned long long)sum);