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authorRoman Zippel <zippel@linux-m68k.org>2006-03-26 04:38:10 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-26 11:57:02 -0500
commit4dee26b7e26eb3c78da8bf6c1c52ee5419145b28 (patch)
treefbea634975b43d58ce50319c2ff703a20fbd133f /fs/proc
parentb75f7a51ca75c977d7d77f735d7a7859194eb39e (diff)
[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>
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/array.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 7eb1bd7f800c..7a76ad570230 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -330,7 +330,6 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
330 unsigned long min_flt = 0, maj_flt = 0; 330 unsigned long min_flt = 0, maj_flt = 0;
331 cputime_t cutime, cstime, utime, stime; 331 cputime_t cutime, cstime, utime, stime;
332 unsigned long rsslim = 0; 332 unsigned long rsslim = 0;
333 DEFINE_KTIME(it_real_value);
334 struct task_struct *t; 333 struct task_struct *t;
335 char tcomm[sizeof(task->comm)]; 334 char tcomm[sizeof(task->comm)];
336 335
@@ -386,7 +385,6 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
386 utime = cputime_add(utime, task->signal->utime); 385 utime = cputime_add(utime, task->signal->utime);
387 stime = cputime_add(stime, task->signal->stime); 386 stime = cputime_add(stime, task->signal->stime);
388 } 387 }
389 it_real_value = task->signal->real_timer.expires;
390 } 388 }
391 ppid = pid_alive(task) ? task->group_leader->real_parent->tgid : 0; 389 ppid = pid_alive(task) ? task->group_leader->real_parent->tgid : 0;
392 read_unlock(&tasklist_lock); 390 read_unlock(&tasklist_lock);
@@ -413,7 +411,7 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
413 start_time = nsec_to_clock_t(start_time); 411 start_time = nsec_to_clock_t(start_time);
414 412
415 res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \ 413 res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
416%lu %lu %lu %lu %lu %ld %ld %ld %ld %d %ld %llu %lu %ld %lu %lu %lu %lu %lu \ 414%lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
417%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n", 415%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n",
418 task->pid, 416 task->pid,
419 tcomm, 417 tcomm,
@@ -435,7 +433,6 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
435 priority, 433 priority,
436 nice, 434 nice,
437 num_threads, 435 num_threads,
438 (long) ktime_to_clock_t(it_real_value),
439 start_time, 436 start_time,
440 vsize, 437 vsize,
441 mm ? get_mm_rss(mm) : 0, 438 mm ? get_mm_rss(mm) : 0,