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[v7,2/4] swapon/libswapon: add helper is_swap_supported

Message ID 20190611074741.31903-2-xzhou@redhat.com
State Accepted
Delegated to: Li Wang
Headers show
Series [v7,1/4] lib/tst_ioctl.c: add helper tst_fibmap | expand

Commit Message

Murphy Zhou June 11, 2019, 7:47 a.m. UTC 
To check if the filesystem we are testing on supports FIBMAP, mkswap,
swapon and swapoff operations. Survivor of this function should support
swapfile function well, like swapon and swapoff.
Modify make_swapfile function to test mkswap support status safely.

Reviewed-by: Li Wang <liwang@redhat.com>
Signed-off-by: Murphy Zhou <xzhou@redhat.com>
---
 testcases/kernel/syscalls/swapon/libswapon.c | 45 +++++++++++++++++++-
 testcases/kernel/syscalls/swapon/libswapon.h |  7 ++-
 2 files changed, 49 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/testcases/kernel/syscalls/swapon/libswapon.c b/testcases/kernel/syscalls/swapon/libswapon.c
index cf6a98891..0a4501bdd 100644
--- a/testcases/kernel/syscalls/swapon/libswapon.c
+++ b/testcases/kernel/syscalls/swapon/libswapon.c
@@ -19,13 +19,15 @@ 
  *
  */
 
+#include <errno.h>
+#include "lapi/syscalls.h"
 #include "test.h"
 #include "libswapon.h"
 
 /*
  * Make a swap file
  */
-void make_swapfile(void (cleanup)(void), const char *swapfile)
+int make_swapfile(void (cleanup)(void), const char *swapfile, int safe)
 {
 	if (!tst_fs_has_free(NULL, ".", sysconf(_SC_PAGESIZE) * 10,
 	    TST_BYTES)) {
@@ -45,5 +47,44 @@  void make_swapfile(void (cleanup)(void), const char *swapfile)
 	argv[1] = swapfile;
 	argv[2] = NULL;
 
-	tst_run_cmd(cleanup, argv, "/dev/null", "/dev/null", 0);
+	return tst_run_cmd(cleanup, argv, "/dev/null", "/dev/null", safe);
+}
+
+/*
+ * Check swapon/swapoff support status of filesystems or files
+ * we are testing on.
+ */
+void is_swap_supported(void (cleanup)(void), const char *filename)
+{
+	int fibmap = tst_fibmap(filename);
+	long fs_type = tst_fs_type(cleanup, filename);
+	const char *fstype = tst_fs_type_name(fs_type);
+
+	int ret = make_swapfile(NULL, filename, 1);
+	if (ret != 0) {
+		if (fibmap == 1) {
+			tst_brkm(TCONF, cleanup,
+				"mkswap on %s not supported", fstype);
+		} else {
+			tst_brkm(TFAIL, cleanup,
+				"mkswap on %s failed", fstype);
+		}
+	}
+
+	TEST(ltp_syscall(__NR_swapon, filename, 0));
+	if (TEST_RETURN == -1) {
+		if (fibmap == 1 && errno == EINVAL) {
+			tst_brkm(TCONF, cleanup,
+				"Swapfile on %s not implemented", fstype);
+		} else {
+			tst_brkm(TFAIL | TERRNO, cleanup,
+				 "swapon on %s failed", fstype);
+		}
+	}
+
+	TEST(ltp_syscall(__NR_swapoff, filename, 0));
+	if (TEST_RETURN == -1) {
+		tst_brkm(TFAIL | TERRNO, cleanup,
+			"swapoff on %s failed", fstype);
+	}
 }
diff --git a/testcases/kernel/syscalls/swapon/libswapon.h b/testcases/kernel/syscalls/swapon/libswapon.h
index 7f7211eb4..a51833ec1 100644
--- a/testcases/kernel/syscalls/swapon/libswapon.h
+++ b/testcases/kernel/syscalls/swapon/libswapon.h
@@ -29,6 +29,11 @@ 
 /*
  * Make a swap file
  */
-void make_swapfile(void (cleanup)(void), const char *swapfile);
+int make_swapfile(void (cleanup)(void), const char *swapfile, int safe);
 
+/*
+ * Check swapon/swapoff support status of filesystems or files
+ * we are testing on.
+ */
+void is_swap_supported(void (cleanup)(void), const char *filename);
 #endif /* __LIBSWAPON_H__ */