linux-kernel - [PATCH] Documentation: fix getdelays.c example -l option and segv

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Date:	Fri, 10 Aug 2007 18:24:45 +1000
From:	Michael Neuling <mikey@...ling.org>
To:	linux-kernel@...r.kernel.org
cc:	akpm@...l.org, Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: [PATCH] Documentation: fix getdelays.c example -l option and segv

Fix a couple of minor issues with the getdelays.c example code. 

Signed-off-by: Michael Neuling <mikey@...ling.org>
---
 Documentation/accounting/getdelays.c |   21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

Index: linux-2.6-ozlabs/Documentation/accounting/getdelays.c
===================================================================
--- linux-2.6-ozlabs.orig/Documentation/accounting/getdelays.c
+++ linux-2.6-ozlabs/Documentation/accounting/getdelays.c
@@ -196,7 +196,7 @@ void print_delayacct(struct taskstats *t
 	       "IO    %15s%15s\n"
 	       "      %15llu%15llu\n"
 	       "MEM   %15s%15s\n"
-	       "      %15llu%15llu\n"
+	       "      %15llu%15llu\n",
 	       "count", "real total", "virtual total", "delay total",
 	       t->cpu_count, t->cpu_run_real_total, t->cpu_run_virtual_total,
 	       t->cpu_delay_total,
@@ -335,17 +335,17 @@ int main(int argc, char *argv[])
 		}
 	}
 
-	if (tid) {
-		rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET,
-			      cmd_type, &tid, sizeof(__u32));
-		PRINTF("Sent pid/tgid, retval %d\n", rc);
-		if (rc < 0) {
-			fprintf(stderr, "error sending tid/tgid cmd\n");
-			goto done;
+	do {
+		if (tid) {
+			rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET,
+				      cmd_type, &tid, sizeof(__u32));
+			PRINTF("Sent pid/tgid, retval %d\n", rc);
+			if (rc < 0) {
+				fprintf(stderr, "error sending tid/tgid cmd\n");
+				goto done;
+			}
 		}
-	}
 
-	do {
 		int i;
 
 		rep_len = recv(nl_sd, &msg, sizeof(msg), 0);
@@ -430,6 +430,7 @@ int main(int argc, char *argv[])
 			}
 			na = (struct nlattr *) (GENLMSG_DATA(&msg) + len);
 		}
+		sleep(2);
 	} while (loop);
 done:
 	if (maskset) {




-
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