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https://github.com/torvalds/linux
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bdf228a272
get_monotonic_boottime() is deprecated and uses the old timespec type. Let's convert /proc/uptime to use ktime_get_boottime_ts64(). Link: http://lkml.kernel.org/r/20180620081746.282742-1-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Deepa Dinamani <deepa.kernel@gmail.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
38 lines
922 B
C
38 lines
922 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/sched.h>
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#include <linux/seq_file.h>
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#include <linux/time.h>
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#include <linux/kernel_stat.h>
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static int uptime_proc_show(struct seq_file *m, void *v)
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{
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struct timespec64 uptime;
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struct timespec64 idle;
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u64 nsec;
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u32 rem;
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int i;
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nsec = 0;
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for_each_possible_cpu(i)
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nsec += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE];
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ktime_get_boottime_ts64(&uptime);
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idle.tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
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idle.tv_nsec = rem;
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seq_printf(m, "%lu.%02lu %lu.%02lu\n",
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(unsigned long) uptime.tv_sec,
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(uptime.tv_nsec / (NSEC_PER_SEC / 100)),
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(unsigned long) idle.tv_sec,
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(idle.tv_nsec / (NSEC_PER_SEC / 100)));
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return 0;
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}
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static int __init proc_uptime_init(void)
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{
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proc_create_single("uptime", 0, NULL, uptime_proc_show);
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return 0;
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}
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fs_initcall(proc_uptime_init);
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