From: Thomas Gleixner <tglx@linutronix.de>
To: Andrew Morton <akpm@osdl.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
Roman Zippel <zippel@linux-m68k.org>
Subject: [patch 6/8] Remove it_real_value calculation from proc/*/stat
Date: Sun, 12 Mar 2006 10:37:19 -0000 [thread overview]
Message-ID: <20060312080332.430560000@localhost.localdomain> (raw)
In-Reply-To: 20060312080316.826824000@localhost.localdomain
[-- Attachment #1: remove-it-real-value.patch --]
[-- Type: text/plain, Size: 1871 bytes --]
From: Roman Zippel <zippel@linux-m68k.org>
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>
fs/proc/array.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
Index: linux-2.6.16-updates/fs/proc/array.c
===================================================================
--- linux-2.6.16-updates.orig/fs/proc/array.c
+++ linux-2.6.16-updates/fs/proc/array.c
@@ -330,7 +330,6 @@ static int do_task_stat(struct task_stru
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_stru
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_stru
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_stru
priority,
nice,
num_threads,
- (long) ktime_to_clock_t(it_real_value),
start_time,
vsize,
mm ? get_mm_rss(mm) : 0,
--
next prev parent reply other threads:[~2006-03-12 10:38 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-12 10:37 [patch 0/8] hrtimer updates Thomas Gleixner
2006-03-12 10:37 ` [patch 1/8] hrtimer optimize softirq runqueues Thomas Gleixner
2006-03-12 10:37 ` [patch 2/8] Pass current time to hrtimer_forward() Thomas Gleixner
2006-03-12 10:37 ` [patch 3/8] posix-timer cleanup common_timer_get() Thomas Gleixner
2006-03-12 10:37 ` [patch 4/8] hrtimer simplify nanosleep Thomas Gleixner
2006-03-12 10:37 ` [patch 5/8] hrtimer remove state field Thomas Gleixner
2006-03-12 12:13 ` Roman Zippel
2006-03-12 13:10 ` Thomas Gleixner
2006-03-12 13:26 ` Roman Zippel
2006-03-12 13:35 ` Thomas Gleixner
2006-03-12 13:55 ` Roman Zippel
2006-03-12 14:15 ` Thomas Gleixner
2006-03-12 14:30 ` Roman Zippel
2006-03-12 14:54 ` Thomas Gleixner
2006-03-12 15:17 ` Roman Zippel
2006-03-12 15:41 ` Thomas Gleixner
2006-03-12 16:00 ` Roman Zippel
2006-03-12 16:26 ` Thomas Gleixner
2006-03-12 16:57 ` [patch] hrtimer remove replace state check by BUG_ON Thomas Gleixner
2006-03-16 1:05 ` [patch 5/8] hrtimer remove state field Roman Zippel
2006-03-16 9:01 ` Thomas Gleixner
2006-03-17 22:07 ` Roman Zippel
2006-03-18 8:46 ` Thomas Gleixner
2006-03-12 10:37 ` Thomas Gleixner [this message]
2006-03-12 10:37 ` [patch 7/8] Remove DEFINE_KTIME and ktime_to_clock_t() Thomas Gleixner
2006-03-12 10:37 ` [patch 8/8] Remove nsec_t typedef Thomas Gleixner
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