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authorAlexey Dobriyan <adobriyan@gmail.com>2021-04-22 23:02:25 +0300
committerIngo Molnar <mingo@kernel.org>2021-05-12 21:34:14 +0200
commit01aee8fd7fb23049e2b52abadbe1f7b5e94a52d2 (patch)
tree3724c38c4e041eea6037ff5fc206972457f6cc6b
parentsched: Fix leftover comment typos (diff)
downloadlinux-dev-01aee8fd7fb23049e2b52abadbe1f7b5e94a52d2.tar.xz
linux-dev-01aee8fd7fb23049e2b52abadbe1f7b5e94a52d2.zip
sched: Make nr_running() return 32-bit value
Creating 2**32 tasks is impossible due to futex pid limits and wasteful anyway. Nobody has done it. Bring nr_running() into 32-bit world to save on REX prefixes. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210422200228.1423391-1-adobriyan@gmail.com
-rw-r--r--fs/proc/loadavg.c2
-rw-r--r--fs/proc/stat.c2
-rw-r--r--include/linux/sched/stat.h2
-rw-r--r--kernel/sched/core.c4
4 files changed, 5 insertions, 5 deletions
diff --git a/fs/proc/loadavg.c b/fs/proc/loadavg.c
index 8468baee951d..f32878d9a39f 100644
--- a/fs/proc/loadavg.c
+++ b/fs/proc/loadavg.c
@@ -16,7 +16,7 @@ static int loadavg_proc_show(struct seq_file *m, void *v)
get_avenrun(avnrun, FIXED_1/200, 0);
- seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %ld/%d %d\n",
+ seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %u/%d %d\n",
LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]),
LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]),
LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]),
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index f25e8531fd27..941605de7f9a 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -200,7 +200,7 @@ static int show_stat(struct seq_file *p, void *v)
"\nctxt %llu\n"
"btime %llu\n"
"processes %lu\n"
- "procs_running %lu\n"
+ "procs_running %u\n"
"procs_blocked %lu\n",
nr_context_switches(),
(unsigned long long)boottime.tv_sec,
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h
index 939c3ec9e1b9..73606b3de394 100644
--- a/include/linux/sched/stat.h
+++ b/include/linux/sched/stat.h
@@ -17,7 +17,7 @@ extern unsigned long total_forks;
extern int nr_threads;
DECLARE_PER_CPU(unsigned long, process_counts);
extern int nr_processes(void);
-extern unsigned long nr_running(void);
+extern unsigned int nr_running(void);
extern bool single_task_running(void);
extern unsigned long nr_iowait(void);
extern unsigned long nr_iowait_cpu(int cpu);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index ac8882da5daf..2c6cdb059c64 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4692,9 +4692,9 @@ context_switch(struct rq *rq, struct task_struct *prev,
* externally visible scheduler statistics: current number of runnable
* threads, total number of context switches performed since bootup.
*/
-unsigned long nr_running(void)
+unsigned int nr_running(void)
{
- unsigned long i, sum = 0;
+ unsigned int i, sum = 0;
for_each_online_cpu(i)
sum += cpu_rq(i)->nr_running;