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authorRandy Dunlap <randy.dunlap@oracle.com>2007-05-08 00:30:13 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:15:11 -0700
commitf16825bbeb9e6e0970531aa2f21b18b2e8ae9e47 (patch)
tree67e983668058833671d337b6eb92d61179ee2b85
parent9e860d000a90cfc9ca270ddb6e99b177e6aa91cd (diff)
downloadlinux-linaro-f16825bbeb9e6e0970531aa2f21b18b2e8ae9e47.tar.gz
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>
-rw-r--r--Documentation/accounting/getdelays.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c
index e9126e794ed..6207e2f59e3 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);
}
}