From 9617760287eec9091d26e6967bd3e4194de18f97 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Fri, 3 Oct 2008 02:38:18 +0400 Subject: proc: switch /proc/uptime to seq_file and move it to fs/proc/uptime.c while I'm at it. Signed-off-by: Alexey Dobriyan --- fs/proc/Makefile | 1 + fs/proc/proc_misc.c | 21 --------------------- fs/proc/uptime.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 44 insertions(+), 21 deletions(-) create mode 100644 fs/proc/uptime.c diff --git a/fs/proc/Makefile b/fs/proc/Makefile index bf2ab4df4a8..27efa14963b 100644 --- a/fs/proc/Makefile +++ b/fs/proc/Makefile @@ -10,6 +10,7 @@ proc-$(CONFIG_MMU) := mmu.o task_mmu.o proc-y += inode.o root.o base.o generic.o array.o \ proc_tty.o proc_misc.o proc-y += loadavg.o +proc-y += uptime.o proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o proc-$(CONFIG_NET) += proc_net.o proc-$(CONFIG_PROC_KCORE) += kcore.o diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index ff42206c8ae..484b6011bf0 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -78,26 +78,6 @@ static int proc_calc_metrics(char *page, char **start, off_t off, return len; } -static int uptime_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - struct timespec uptime; - struct timespec idle; - int len; - cputime_t idletime = cputime_add(init_task.utime, init_task.stime); - - do_posix_clock_monotonic_gettime(&uptime); - monotonic_to_bootbased(&uptime); - cputime_to_timespec(idletime, &idle); - len = sprintf(page,"%lu.%02lu %lu.%02lu\n", - (unsigned long) uptime.tv_sec, - (uptime.tv_nsec / (NSEC_PER_SEC / 100)), - (unsigned long) idle.tv_sec, - (idle.tv_nsec / (NSEC_PER_SEC / 100))); - - return proc_calc_metrics(page, start, off, count, eof, len); -} - int __attribute__((weak)) arch_report_meminfo(char *page) { return 0; @@ -836,7 +816,6 @@ void __init proc_misc_init(void) char *name; int (*read_proc)(char*,char**,off_t,int,int*,void*); } *p, simple_ones[] = { - {"uptime", uptime_read_proc}, {"meminfo", meminfo_read_proc}, {"version", version_read_proc}, #ifdef CONFIG_PROC_HARDWARE diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c new file mode 100644 index 00000000000..0c10a0b3f14 --- /dev/null +++ b/fs/proc/uptime.c @@ -0,0 +1,43 @@ +#include +#include +#include +#include +#include +#include +#include + +static int uptime_proc_show(struct seq_file *m, void *v) +{ + struct timespec uptime; + struct timespec idle; + cputime_t idletime = cputime_add(init_task.utime, init_task.stime); + + do_posix_clock_monotonic_gettime(&uptime); + monotonic_to_bootbased(&uptime); + cputime_to_timespec(idletime, &idle); + seq_printf(m, "%lu.%02lu %lu.%02lu\n", + (unsigned long) uptime.tv_sec, + (uptime.tv_nsec / (NSEC_PER_SEC / 100)), + (unsigned long) idle.tv_sec, + (idle.tv_nsec / (NSEC_PER_SEC / 100))); + return 0; +} + +static int uptime_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, uptime_proc_show, NULL); +} + +static const struct file_operations uptime_proc_fops = { + .open = uptime_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init proc_uptime_init(void) +{ + proc_create("uptime", 0, NULL, &uptime_proc_fops); + return 0; +} +module_init(proc_uptime_init); -- cgit v1.2.3