[PATCH v2 2/4] syscalls: readahead01: Make use of tst_fd

[Cyril Hrubis <chrubis@xxxxxxx>]

TODO:
- readahead() on /proc/self/maps seems to succeed
- readahead() on pipe write end, O_PATH file and open_tree() fd returns EBADFD

Are these to be expected?

Signed-off-by: Cyril Hrubis <chrubis@xxxxxxx>
---
 .../kernel/syscalls/readahead/readahead01.c   | 54 ++++++++++---------
 1 file changed, 29 insertions(+), 25 deletions(-)

diff --git a/testcases/kernel/syscalls/readahead/readahead01.c b/testcases/kernel/syscalls/readahead/readahead01.c
index bdef7945d..6dd5086e5 100644
--- a/testcases/kernel/syscalls/readahead/readahead01.c
+++ b/testcases/kernel/syscalls/readahead/readahead01.c
@@ -30,43 +30,47 @@
 
 static void test_bad_fd(void)
 {
-	char tempname[PATH_MAX] = "readahead01_XXXXXX";
-	int fd;
+	int fd[2];
+
+	TST_EXP_FAIL(readahead(-1, 0, getpagesize()), EBADF,
+	             "readahead() with fd = -1");
 
-	tst_res(TINFO, "%s -1", __func__);
-	TST_EXP_FAIL(readahead(-1, 0, getpagesize()), EBADF);
+	SAFE_PIPE(fd);
+	SAFE_CLOSE(fd[0]);
+	SAFE_CLOSE(fd[1]);
 
-	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);
+	TST_EXP_FAIL(readahead(fd[0], 0, getpagesize()), EBADF,
+	             "readahead() with invalid fd");
 }
 
-static void test_invalid_fd(void)
+static void test_invalid_fd(struct tst_fd *fd)
 {
-	int fd[2];
+	int exp_errno = EINVAL;
 
-	tst_res(TINFO, "%s pipe", __func__);
-	SAFE_PIPE(fd);
-	TST_EXP_FAIL(readahead(fd[0], 0, getpagesize()), EINVAL);
-	SAFE_CLOSE(fd[0]);
-	SAFE_CLOSE(fd[1]);
+	switch (fd->type) {
+	/* These two succeed */
+	case TST_FD_FILE:
+	case TST_FD_MEMFD:
+		return;
+	case TST_FD_PIPE_WRITE:
+	case TST_FD_OPEN_TREE:
+	case TST_FD_PATH:
+		exp_errno = EBADF;
+	break;
+	default:
+		break;
+	}
 
-	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->fd, 0, getpagesize()), exp_errno,
+		     "readahead() on %s", tst_fd_desc(fd));
 }
 
 static void test_readahead(void)
 {
 	test_bad_fd();
-	test_invalid_fd();
+
+	TST_FD_FOREACH(fd)
+		test_invalid_fd(&fd);
 }
 
 static void setup(void)
-- 
2.41.0