diff options
| -rw-r--r-- | Documentation/accounting/getdelays.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c index e9126e794ed7..6207e2f59e3b 100644 --- a/Documentation/accounting/getdelays.c +++ b/Documentation/accounting/getdelays.c @@ -72,6 +72,16 @@ struct msgtemplate { 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 */ @@ -227,7 +237,7 @@ int main(int argc, char *argv[]) struct msgtemplate msg; 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) break; @@ -277,7 +287,7 @@ int main(int argc, char *argv[]) loop = 1; break; default: - printf("Unknown option %d\n", c); + usage(); exit(-1); } } |