From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932100AbWCLKiI (ORCPT ); Sun, 12 Mar 2006 05:38:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932085AbWCLKhm (ORCPT ); Sun, 12 Mar 2006 05:37:42 -0500 Received: from 213-239-205-147.clients.your-server.de ([213.239.205.147]:29670 "EHLO mail.tglx.de") by vger.kernel.org with ESMTP id S1751411AbWCLKg6 (ORCPT ); Sun, 12 Mar 2006 05:36:58 -0500 Message-Id: <20060312080332.430560000@localhost.localdomain> References: <20060312080316.826824000@localhost.localdomain> Date: Sun, 12 Mar 2006 10:37:19 -0000 From: Thomas Gleixner To: Andrew Morton Cc: LKML , Ingo Molnar , Roman Zippel Subject: [patch 6/8] Remove it_real_value calculation from proc/*/stat Content-Disposition: inline; filename=remove-it-real-value.patch Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Roman Zippel 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 Acked-by: Ingo Molnar Acked-by: Thomas Gleixner 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, --