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From e529ce0b53f6b73d8b760cd37b23e0397720cede Mon Sep 17 00:00:00 2001
From: Daniel Novotny <dnovotny@fedoraproject.org>
Date: Mon, 16 Feb 2009 12:22:20 +0000
Subject: add cgroup support
Rebased for 3.2.8: Andrei Gherzan <andrei.gherzan@windriver.com>
Upstream-Status: Pending
The patch was imported from the meta-ivi repository
(git://git.yoctoproject.org/meta-ivi) as of commit id
74b9624fe94b2b90810717a13d481b0db9d2d95a
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Index: procps-3.2.8/ps/output.c
===================================================================
--- procps-3.2.8.orig/ps/output.c 2012-11-15 17:44:05.501337741 +0200
+++ procps-3.2.8/ps/output.c 2012-11-15 17:48:31.585328231 +0200
@@ -1099,6 +1099,39 @@
return snprintf(outbuf, COLWID, "*");
}
+static int pr_cgroup(char *restrict const outbuf, const proc_t *restrict const pp){
+ char filename[48];
+ FILE *fd;
+ int counter = 0;
+ int c;
+ int is_cgroup = 0;
+
+ outbuf[0]='\0';
+ snprintf(filename, sizeof filename, "/proc/%d/cgroup", pp->tgid);
+ fd = fopen(filename, "r");
+ if (likely(fd == NULL)) goto fail;
+ while (( (c = fgetc(fd)) != EOF) && (counter<665)) {
+ if (is_cgroup == 0) {
+ if (c == ':') {
+ is_cgroup = 1;
+ if (counter>0)
+ outbuf[counter++]=';';
+ }
+ }else
+ if ((c == '\n') || (c == '\0'))
+ is_cgroup = 0;
+ else
+ outbuf[counter++]=c;
+ }
+ outbuf[counter]='\0';
+ close(fd);
+ if (counter>0)
+ return counter;
+fail:
+ outbuf[0] = '-';
+ outbuf[1] = '\0';
+ return 1;
+}
/****************** FLASK & seLinux security stuff **********************/
// move the bulk of this to libproc sometime
@@ -1293,6 +1326,7 @@
{"bsdtime", "TIME", pr_bsdtime, sr_nop, 6, 0, LNX, ET|RIGHT},
{"c", "C", pr_c, sr_pcpu, 2, 0, SUN, ET|RIGHT},
{"caught", "CAUGHT", pr_sigcatch, sr_nop, 9, 0, BSD, TO|SIGNAL}, /*sigcatch*/
+{"cgroup", "CGROUP", pr_cgroup, sr_nop, 35, 0, LNX, PO|LEFT}, /* cgroups*/
{"class", "CLS", pr_class, sr_sched, 3, 0, XXX, TO|LEFT},
{"cls", "CLS", pr_class, sr_sched, 3, 0, HPU, TO|RIGHT}, /*says HPUX or RT*/
{"cmaj_flt", "-", pr_nop, sr_cmaj_flt, 1, 0, LNX, AN|RIGHT},
Index: procps-3.2.8/ps/ps.1
===================================================================
--- procps-3.2.8.orig/ps/ps.1 2012-11-15 17:44:50.845336117 +0200
+++ procps-3.2.8/ps/ps.1 2012-11-15 17:49:09.621326859 +0200
@@ -904,6 +904,10 @@
displayed. (alias\ \fBsig_catch\fR,\ \fBsigcatch\fR).
T}
+cgroup CGROUP T{
+display control groups to which the process belonges.
+t}
+
class CLS T{
scheduling class of the process. (alias\ \fBpolicy\fR,\ \fBcls\fR).
Field's possible values are:
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