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[PATCH] hrtimers: remove it_real_value calculation from proc/*/stat 

Remove the it_real_value from /proc/*/stat, during 1.2.x was the last time it
returned useful data (as it was directly maintained by the scheduler), now
it's only a waste of time to calculate it.  Return 0 instead.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Roman Zippel 2006-03-26 01:38:10 -08:00 committed by Linus Torvalds
parent b75f7a51ca
commit 4dee26b7e2
1 changed files with 1 additions and 4 deletions
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5
fs/proc/array.c
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@ -330,7 +330,6 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
unsigned long min_flt = 0, maj_flt = 0;
cputime_t cutime, cstime, utime, stime;
unsigned long rsslim = 0;
DEFINE_KTIME(it_real_value);
struct task_struct *t;
char tcomm[sizeof(task->comm)];
@ -386,7 +385,6 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
utime = cputime_add(utime, task->signal->utime);
stime = cputime_add(stime, task->signal->stime);
}
it_real_value = task->signal->real_timer.expires;
}
ppid = pid_alive(task) ? task->group_leader->real_parent->tgid : 0;
read_unlock(&tasklist_lock);
@ -413,7 +411,7 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
start_time = nsec_to_clock_t(start_time);
res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
%lu %lu %lu %lu %lu %ld %ld %ld %ld %d %ld %llu %lu %ld %lu %lu %lu %lu %lu \
%lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n",
task->pid,
tcomm,
@ -435,7 +433,6 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
priority,
nice,
num_threads,
(long) ktime_to_clock_t(it_real_value),
start_time,
vsize,
mm ? get_mm_rss(mm) : 0,