Messages in this thread | | | Date | Fri, 11 May 2007 12:51:32 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] Use boot based time for process start time and boot time in /proc |
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On Fri, 11 May 2007 10:45:31 +0200 Tomas Janousek <tjanouse@redhat.com> wrote:
> Hello, > > On Thu, May 10, 2007 at 04:40:47PM -0700, Andrew Morton wrote: > > Tomas Janousek <tjanouse@redhat.com> wrote: > > > @@ -445,12 +445,14 @@ static int show_stat(struct seq_file *p, void *v) > > > unsigned long jif; > > > cputime64_t user, nice, system, idle, iowait, irq, softirq, steal; > > > u64 sum = 0; > > > + struct timespec boottime; > > > > > > user = nice = system = idle = iowait = > > > irq = softirq = steal = cputime64_zero; > > > - jif = - wall_to_monotonic.tv_sec; > > > - if (wall_to_monotonic.tv_nsec) > > > - --jif; > > > + getboottime(&boottime); > > > + jif = boottime.tv_sec; > > > + if (boottime.tv_nsec) > > > + ++jif; > > > > > > > Is the switch from --jif to ++jif a functional change? If so, how come? > > Yes, I'm afraid it was. > > ----------------------- > From: Tomas Janousek <tjanouse@redhat.com> > Date: Fri, 11 May 2007 10:34:55 +0200 > Subject: [PATCH] Lower the boot time to seconds, not ceil > > Restores the original behaviour of boot time calculation. > > Signed-off-by: Tomas Janousek <tjanouse@redhat.com> > Cc: Andrew Morton <akpm@linux-foundation.org> > Cc: Tomas Smetana <tsmetana@redhat.com> > Cc: John Stultz <johnstul@us.ibm.com> > --- > fs/proc/proc_misc.c | 2 -- > 1 files changed, 0 insertions(+), 2 deletions(-) > > diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c > index d84956c..60b6210 100644 > --- a/fs/proc/proc_misc.c > +++ b/fs/proc/proc_misc.c > @@ -452,8 +452,6 @@ static int show_stat(struct seq_file *p, void *v) > irq = softirq = steal = cputime64_zero; > getboottime(&boottime); > jif = boottime.tv_sec; > - if (boottime.tv_nsec) > - ++jif; > > for_each_possible_cpu(i) { > int j;
So we've gone from --jif to ++jif to no change at all.
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