Taskstats: fix getdelays usage information
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>
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@ -72,6 +72,16 @@ struct msgtemplate {
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char cpumask[100+6*MAX_CPUS];
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static void usage(void)
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{
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fprintf(stderr, "getdelays [-dilv] [-w logfile] [-r bufsize] "
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"[-m cpumask] [-t tgid] [-p pid]\n");
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fprintf(stderr, " -d: print delayacct stats\n");
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fprintf(stderr, " -i: print IO accounting (works only with -p)\n");
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fprintf(stderr, " -l: listen forever\n");
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fprintf(stderr, " -v: debug on\n");
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}
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/*
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* Create a raw netlink socket and bind
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*/
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@ -227,7 +237,7 @@ int main(int argc, char *argv[])
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struct msgtemplate msg;
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while (1) {
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c = getopt(argc, argv, "diw:r:m:t:p:v:l");
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c = getopt(argc, argv, "diw:r:m:t:p:vl");
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if (c < 0)
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break;
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@ -277,7 +287,7 @@ int main(int argc, char *argv[])
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loop = 1;
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break;
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default:
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printf("Unknown option %d\n", c);
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usage();
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exit(-1);
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}
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}
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