diotest: Fix the repeated log printing problem

Fix the problem of repeated printing logs when the dio module specifies the output log file. This is a typical buffer problem. In the diotest6/diotes3 third step will fork lots of process. If the cache subprocess is not cleaned up, the cache generated in the previous step will be copied, and then when each process exits, a large number of repeated prints will be generated. Signed-off-by: Duncan.chu <[email protected]> Reviewed-by: Cyril Hrubis <[email protected]>
linux-test-project · Jul 12, 2023 · bf4e683 · bf4e683
1 parent 4344cca
commit bf4e683
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diff --git a/testcases/kernel/io/direct_io/diotest3.c b/testcases/kernel/io/direct_io/diotest3.c
@@ -292,6 +292,7 @@ int main(int argc, char *argv[])
 	}
 	unlink(filename);
 	free(pidlst);
+	fflush(stdout);
 	total++;
 
 	/* Testblock-2: Write with Direct IO, Read without */
@@ -309,6 +310,7 @@ int main(int argc, char *argv[])
 	}
 	unlink(filename);
 	free(pidlst);
+	fflush(stdout);
 	total++;
 
 	/* Testblock-3: Read, Write with Direct IO. */

diff --git a/testcases/kernel/io/direct_io/diotest6.c b/testcases/kernel/io/direct_io/diotest6.c
@@ -320,6 +320,7 @@ int main(int argc, char *argv[])
 	}
 	unlink(filename);
 	free(pidlst);
+	fflush(stdout);
 	total++;
 
 	/* Testblock-2: Write with Direct IO, Read without */
@@ -337,6 +338,7 @@ int main(int argc, char *argv[])
 	}
 	unlink(filename);
 	free(pidlst);
+	fflush(stdout);
 	total++;
 
 	/* Testblock-3: Read, Write with Direct IO. */