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Taskstats: fix getdelays usage information

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Add usage to getdelays.c. This patch was originally posted by Randy Dunlap
http://lkml.org/lkml/2007/3/19/168

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Randy Dunlap 2007-05-08 00:30:13 -07:00 committed by Linus Torvalds
parent 9e860d000a
commit f16825bbeb
1 changed files with 12 additions and 2 deletions
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14
Documentation/accounting/getdelays.c
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@ -72,6 +72,16 @@ struct msgtemplate {
char cpumask[100+6*MAX_CPUS]; char cpumask[100+6*MAX_CPUS];
static void usage(void)
{
fprintf(stderr, "getdelays [-dilv] [-w logfile] [-r bufsize] "
"[-m cpumask] [-t tgid] [-p pid]\n");
fprintf(stderr, " -d: print delayacct stats\n");
fprintf(stderr, " -i: print IO accounting (works only with -p)\n");
fprintf(stderr, " -l: listen forever\n");
fprintf(stderr, " -v: debug on\n");
}
/* /*
* Create a raw netlink socket and bind * Create a raw netlink socket and bind
*/ */
@ -227,7 +237,7 @@ int main(int argc, char *argv[])
struct msgtemplate msg; struct msgtemplate msg;
while (1) { while (1) {
c = getopt(argc, argv, "diw:r:m:t:p:v:l"); c = getopt(argc, argv, "diw:r:m:t:p:vl");
if (c < 0) if (c < 0)
break; break;
@ -277,7 +287,7 @@ int main(int argc, char *argv[])
loop = 1; loop = 1;
break; break;
default: default:
printf("Unknown option %d\n", c); usage();
exit(-1); exit(-1);
} }
} }