From: Sha Zhengju <handai....@taobao.com>
Signed-off-by: Sha Zhengju <handai....@taobao.com>
---
include/linux/sched.h | 1 -
kernel/sched/core.c | 22 ++--------------------
2 files changed, 2 insertions(+), 21 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 33cc421..f9ca237d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -98,7 +98,6 @@ extern int nr_threads;
DECLARE_PER_CPU(unsigned long, process_counts);
extern int nr_processes(void);
extern unsigned long nr_running(void);
-extern unsigned long nr_uninterruptible(void);
extern unsigned long nr_iowait(void);
extern unsigned long nr_iowait_cpu(int cpu);
extern unsigned long this_cpu_load(void);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 03d7784..b7b03cd 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1969,11 +1969,10 @@ context_switch(struct rq *rq, struct task_struct *prev,
}
/*
- * nr_running, nr_uninterruptible and nr_context_switches:
+ * nr_running and nr_context_switches:
*
* externally visible scheduler statistics: current number of runnable
- * threads, current number of uninterruptible-sleeping threads, total
- * number of context switches performed since bootup.
+ * threads, total number of context switches performed since bootup.
*/
unsigned long nr_running(void)
{
@@ -1985,23 +1984,6 @@ unsigned long nr_running(void)
return sum;
}
-unsigned long nr_uninterruptible(void)
-{
- unsigned long i, sum = 0;
-
- for_each_possible_cpu(i)
- sum += cpu_rq(i)->nr_uninterruptible;
-
- /*
- * Since we read the counters lockless, it might be slightly
- * inaccurate. Do not allow it to go below zero though:
- */
- if (unlikely((long)sum < 0))
- sum = 0;
-
- return sum;
-}
-
unsigned long long nr_context_switches(void)
{
int i;
--
1.7.9.5
--
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