[PATCH 2/3] syscalls/readahead01: Make use of tst_fd_iterate()

[Cyril Hrubis <chrubis@xxxxxxx>]

TODO: readahead() on /proc/self/maps seems to succeed is that to be
      expected?

Signed-off-by: Cyril Hrubis <chrubis@xxxxxxx>
---
 .../kernel/syscalls/readahead/readahead01.c   | 46 ++++++++-----------
 1 file changed, 20 insertions(+), 26 deletions(-)

diff --git a/testcases/kernel/syscalls/readahead/readahead01.c b/testcases/kernel/syscalls/readahead/readahead01.c
index bdef7945d..28134d416 100644
--- a/testcases/kernel/syscalls/readahead/readahead01.c
+++ b/testcases/kernel/syscalls/readahead/readahead01.c
@@ -29,44 +29,38 @@
 #if defined(__NR_readahead)
 
 static void test_bad_fd(void)
-{
-	char tempname[PATH_MAX] = "readahead01_XXXXXX";
-	int fd;
-
-	tst_res(TINFO, "%s -1", __func__);
-	TST_EXP_FAIL(readahead(-1, 0, getpagesize()), EBADF);
-
-	tst_res(TINFO, "%s O_WRONLY", __func__);
-	fd = mkstemp(tempname);
-	if (fd == -1)
-		tst_res(TFAIL | TERRNO, "mkstemp failed");
-	SAFE_CLOSE(fd);
-	fd = SAFE_OPEN(tempname, O_WRONLY);
-	TST_EXP_FAIL(readahead(fd, 0, getpagesize()), EBADF);
-	SAFE_CLOSE(fd);
-	unlink(tempname);
-}
-
-static void test_invalid_fd(void)
 {
 	int fd[2];
 
-	tst_res(TINFO, "%s pipe", __func__);
+	TST_EXP_FAIL(readahead(-1, 0, getpagesize()), EBADF,
+	             "readahead() with fd = -1");
+
 	SAFE_PIPE(fd);
-	TST_EXP_FAIL(readahead(fd[0], 0, getpagesize()), EINVAL);
 	SAFE_CLOSE(fd[0]);
 	SAFE_CLOSE(fd[1]);
 
-	tst_res(TINFO, "%s socket", __func__);
-	fd[0] = SAFE_SOCKET(AF_INET, SOCK_STREAM, 0);
-	TST_EXP_FAIL(readahead(fd[0], 0, getpagesize()), EINVAL);
-	SAFE_CLOSE(fd[0]);
+	TST_EXP_FAIL(readahead(fd[0], 0, getpagesize()), EBADF,
+	             "readahead() with invalid fd");
+}
+
+static void test_invalid_fd(struct tst_fd *fd)
+{
+	switch (fd->type) {
+	case TST_FD_FILE:
+	case TST_FD_PIPE_OUT:
+		return;
+	default:
+		break;
+	}
+
+	TST_EXP_FAIL(readahead(fd->fd, 0, getpagesize()), EINVAL,
+		     "readahead() on %s", tst_fd_desc(fd));
 }
 
 static void test_readahead(void)
 {
 	test_bad_fd();
-	test_invalid_fd();
+	tst_fd_iterate(test_invalid_fd);
 }
 
 static void setup(void)
-- 
2.41.0