Re: [patch] 2.4-ac: real-time / scheduling information out of /proc

Robert Love (rml@tech9.net)
19 Sep 2002 17:29:40 -0400


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On Thu, 2002-09-19 at 17:26, Robert Love wrote:

> The attached patch exports scheduling policy and real-time priority from
> /proc/<pid>/stats.
>
> Support for reading this information is in procps CVS.
>
> This information has been in 2.5 since 2.5.18.
>
> It does not break old versions of procps as it just adds the new entries
> to the end. I do not know what the practice is wrt adding proc fields
> in stable kernels, however since this does not break procps, is
> supported by current procps, and is in 2.5 -- it is perfectly safe to
> me.
>
> Patch is against 2.4.20-pre7-ac3, please apply.

Ugh, missing a comma. Sorry,

Robert Love

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diff -urN linux-2.4.20-pre7-ac3/fs/proc/array.c linux/fs/proc/array.c
--- linux-2.4.20-pre7-ac3/fs/proc/array.c Thu Sep 19 16:10:34 2002
+++ linux/fs/proc/array.c Thu Sep 19 17:18:36 2002
@@ -346,7 +346,7 @@
read_unlock(&tasklist_lock);
res =3D sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
%lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %lu %lu %ld %lu %lu %lu %lu %l=
u \
-%lu %lu %lu %lu %lu %lu %lu %lu %d %d\n",
+%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n",
task->pid,
task->comm,
state,
@@ -389,7 +389,9 @@
task->nswap,
task->cnswap,
task->exit_signal,
- task_cpu(task));
+ task_cpu(task),
+ task->rt_priority,
+ task->policy);
if(mm)
mmput(mm);
return res;

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