diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-23 15:04:37 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-23 15:04:37 -0400 |
commit | 88ed86fee6651033de9b7038dac7869a9f19775a (patch) | |
tree | 38b638d2e7cba110ec271275738f221feb7e0a37 /fs/proc/uptime.c | |
parent | 3856d30ded1fe43c6657927ebad402d25cd128f4 (diff) | |
parent | 59c7572e82d69483a66eaa67b46548baeb69ecf4 (diff) |
Merge branch 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc
* 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc: (35 commits)
proc: remove fs/proc/proc_misc.c
proc: move /proc/vmcore creation to fs/proc/vmcore.c
proc: move pagecount stuff to fs/proc/page.c
proc: move all /proc/kcore stuff to fs/proc/kcore.c
proc: move /proc/schedstat boilerplate to kernel/sched_stats.h
proc: move /proc/modules boilerplate to kernel/module.c
proc: move /proc/diskstats boilerplate to block/genhd.c
proc: move /proc/zoneinfo boilerplate to mm/vmstat.c
proc: move /proc/vmstat boilerplate to mm/vmstat.c
proc: move /proc/pagetypeinfo boilerplate to mm/vmstat.c
proc: move /proc/buddyinfo boilerplate to mm/vmstat.c
proc: move /proc/vmallocinfo to mm/vmalloc.c
proc: move /proc/slabinfo boilerplate to mm/slub.c, mm/slab.c
proc: move /proc/slab_allocators boilerplate to mm/slab.c
proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c
proc: move /proc/stat to fs/proc/stat.c
proc: move rest of /proc/partitions code to block/genhd.c
proc: move /proc/cpuinfo code to fs/proc/cpuinfo.c
proc: move /proc/devices code to fs/proc/devices.c
proc: move rest of /proc/locks to fs/locks.c
...
Diffstat (limited to 'fs/proc/uptime.c')
-rw-r--r-- | fs/proc/uptime.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c new file mode 100644 index 000000000000..0c10a0b3f146 --- /dev/null +++ b/fs/proc/uptime.c | |||
@@ -0,0 +1,43 @@ | |||
1 | #include <linux/fs.h> | ||
2 | #include <linux/init.h> | ||
3 | #include <linux/proc_fs.h> | ||
4 | #include <linux/sched.h> | ||
5 | #include <linux/seq_file.h> | ||
6 | #include <linux/time.h> | ||
7 | #include <asm/cputime.h> | ||
8 | |||
9 | static int uptime_proc_show(struct seq_file *m, void *v) | ||
10 | { | ||
11 | struct timespec uptime; | ||
12 | struct timespec idle; | ||
13 | cputime_t idletime = cputime_add(init_task.utime, init_task.stime); | ||
14 | |||
15 | do_posix_clock_monotonic_gettime(&uptime); | ||
16 | monotonic_to_bootbased(&uptime); | ||
17 | cputime_to_timespec(idletime, &idle); | ||
18 | seq_printf(m, "%lu.%02lu %lu.%02lu\n", | ||
19 | (unsigned long) uptime.tv_sec, | ||
20 | (uptime.tv_nsec / (NSEC_PER_SEC / 100)), | ||
21 | (unsigned long) idle.tv_sec, | ||
22 | (idle.tv_nsec / (NSEC_PER_SEC / 100))); | ||
23 | return 0; | ||
24 | } | ||
25 | |||
26 | static int uptime_proc_open(struct inode *inode, struct file *file) | ||
27 | { | ||
28 | return single_open(file, uptime_proc_show, NULL); | ||
29 | } | ||
30 | |||
31 | static const struct file_operations uptime_proc_fops = { | ||
32 | .open = uptime_proc_open, | ||
33 | .read = seq_read, | ||
34 | .llseek = seq_lseek, | ||
35 | .release = single_release, | ||
36 | }; | ||
37 | |||
38 | static int __init proc_uptime_init(void) | ||
39 | { | ||
40 | proc_create("uptime", 0, NULL, &uptime_proc_fops); | ||
41 | return 0; | ||
42 | } | ||
43 | module_init(proc_uptime_init); | ||