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sched/core: Remove the obsolete and unused nr_uninterruptible() function

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Signed-off-by: Sha Zhengju <handai.szj@taobao.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1361351678-8065-1-git-send-email-handai.szj@taobao.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Sha Zhengju 2013-02-20 17:14:38 +08:00 committed by Ingo Molnar
parent ece8e0b2f9
commit 1c3e826482
2 changed files with 2 additions and 21 deletions
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1
include/linux/sched.h
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@ -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);

22
kernel/sched/core.c
View file

@ -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;