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Message-ID: <20241105202639.1977356-3-cvam0000@gmail.com>
Date: Wed, 6 Nov 2024 01:56:39 +0530
From: Shivam Chaudhary <cvam0000@...il.com>
To: shuah@...nel.org
Cc: linux-kselftest@...r.kernel.org,
linux-kernel@...r.kernel.org,
Shivam Chaudhary <cvam0000@...il.com>
Subject: [PATCH v4 2/2] selftests: tmpfs: Add kselftest support to tmpfs
Replace direct error handling with 'ksft_test_result_*',
'ksft_print_msg' and KSFT_SKIP macros for better reporting.
Test logs:
Before change:
- Without root
error: unshare, errno 1
- With root
No, output
After change:
- Without root
TAP version 13
1..1
ok 1 # SKIP This test needs root to run
- With root
TAP version 13
1..1
unshare(): Creat new mount namespace: Success.
mount(): Root filesystem private mount: Success
mount(): Mounting tmpfs on /tmp: Success
openat(): Open first temporary file: Success
linkat(): Linking the temporary file: Success
openat(): Opening the second temporary file: Success
ok 1 Test : Success
Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Shivam Chaudhary <cvam0000@...il.com>
---
.../selftests/tmpfs/bug-link-o-tmpfile.c | 66 ++++++++++++++-----
1 file changed, 49 insertions(+), 17 deletions(-)
diff --git a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
index cdab1e8c0392..f2e6a5b20698 100644
--- a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
+++ b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
@@ -42,39 +42,71 @@ int main(void)
if (unshare(CLONE_NEWNS) == -1) {
if (errno == ENOSYS || errno == EPERM) {
- fprintf(stderr, "error: unshare, errno %d\n", errno);
- return 4;
+ ksft_print_msg("unshare() error: unshare, errno %d\n", errno);
+ exit(KSFT_SKIP);
+
+ }
+ else{
+ fprintf(stderr, "unshare() error: unshare, errno %d\n", errno);
+ return 1;
+
}
- fprintf(stderr, "error: unshare, errno %d\n", errno);
- return 1;
+ }
+
+ else {
+ ksft_print_msg("unshare(): Creat new mount namespace: Success.\n");
+
}
- if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) {
- fprintf(stderr, "error: mount '/', errno %d\n", errno);
- return 1;
+
+
+
+ if (mount(NULL, "/", NULL, MS_PRIVATE | MS_REC, NULL) == -1) {
+ ksft_print_msg("mount() error: Root filesystem private mount: Fail %d\n", errno);
+ exit(KSFT_SKIP);
+ } else {
+ ksft_print_msg("mount(): Root filesystem private mount: Success\n");
}
+
/* Our heroes: 1 root inode, 1 O_TMPFILE inode, 1 permanent inode. */
if (mount(NULL, "/tmp", "tmpfs", 0, "nr_inodes=3") == -1) {
- fprintf(stderr, "error: mount tmpfs, errno %d\n", errno);
- return 1;
+ ksft_print_msg("mount() error: Mounting tmpfs on /tmp: Fail %d\n", errno);
+ exit(KSFT_SKIP);
+ } else {
+ ksft_print_msg("mount(): Mounting tmpfs on /tmp: Success\n");
}
- fd = openat(AT_FDCWD, "/tmp", O_WRONLY|O_TMPFILE, 0600);
+
+ fd = openat(AT_FDCWD, "/tmp", O_WRONLY | O_TMPFILE, 0600);
if (fd == -1) {
- fprintf(stderr, "error: open 1, errno %d\n", errno);
- return 1;
+ ksft_print_msg("openat() error: Open first temporary file: Fail %d\n", errno);
+ exit(KSFT_SKIP);
+ } else {
+ ksft_print_msg("openat(): Open first temporary file: Success\n");
}
+
+
if (linkat(fd, "", AT_FDCWD, "/tmp/1", AT_EMPTY_PATH) == -1) {
- fprintf(stderr, "error: linkat, errno %d\n", errno);
- return 1;
+ ksft_print_msg("linkat() error: Linking the temporary file: Fail %d\n", errno);
+ /* Ensure fd is closed on failure */
+ close(fd);
+ exit(KSFT_SKIP);
+ } else {
+ ksft_print_msg("linkat(): Linking the temporary file: Success\n");
}
close(fd);
- fd = openat(AT_FDCWD, "/tmp", O_WRONLY|O_TMPFILE, 0600);
+
+ fd = openat(AT_FDCWD, "/tmp", O_WRONLY | O_TMPFILE, 0600);
if (fd == -1) {
- fprintf(stderr, "error: open 2, errno %d\n", errno);
- return 1;
+ ksft_print_msg("openat() error: Opening the second temporary file: Fail %d\n", errno);
+ exit(KSFT_SKIP);
+ } else {
+ ksft_print_msg("openat(): Opening the second temporary file: Success\n");
}
+ ksft_test_result_pass("Test : Success\n");
+ ksft_exit_pass();
return 0;
}
+
--
2.45.2
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