Messages in this thread Patch in this message | | | Date | Thu, 12 Mar 2020 00:06:08 +0300 | From | Alexey Dobriyan <> | Subject | [PATCH 1/2] sched: make nr_running() return "unsigned int" |
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I don't anyone have been crazy enough to spawn 2^32 threads. It'd require absurd amounts of physical memory.
Meanwhile save few bits on REX prefixes.
And remove "extern" from prototypes while I'm at it.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> ---
fs/proc/loadavg.c | 2 +- fs/proc/stat.c | 2 +- include/linux/sched/stat.h | 2 +- kernel/sched/core.c | 4 ++-- 4 files changed, 5 insertions(+), 5 deletions(-)
--- 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]), --- a/fs/proc/stat.c +++ b/fs/proc/stat.c @@ -197,7 +197,7 @@ 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, --- a/include/linux/sched/stat.h +++ b/include/linux/sched/stat.h @@ -16,7 +16,7 @@ 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); +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); --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3389,9 +3389,9 @@ 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;
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