fsverity_test.go: fix major/minor device number resolving

xbt573 · xbt573 · commit f9537ae126fc · 2024-11-08T05:11:32.000+03:00
Signed-off-by: Alexey Lunev &lt;cheembox573@gmail.com&gt;
diff --git a/internal/fsverity/fsverity_test.go b/internal/fsverity/fsverity_test.go
@@ -29,6 +29,7 @@ import (
 	"testing"
 
 	"github.com/containerd/containerd/v2/pkg/testutil"
+	"golang.org/x/sys/unix"
 )
 
 type superblockROFeatures struct {
@@ -143,8 +144,7 @@ func resolveDevicePath(path string) (_ string, e error) {
 	}
 
 	// resolve to device path
-	maj := (stat.Dev >> 8) & 0xff
-	min := stat.Dev & 0xff
+	major, minor := unix.Major(stat.Dev), unix.Minor(stat.Dev)
 
 	m, err := os.Open("/proc/self/mountinfo")
 	if err != nil {
@@ -162,7 +162,7 @@ func resolveDevicePath(path string) (_ string, e error) {
 	scanner := bufio.NewScanner(m)
 
 	var entry string
-	sub := fmt.Sprintf("%d:%d", maj, min)
+	sub := fmt.Sprintf("%d:%d", major, minor)
 	for scanner.Scan() {
 		if strings.Contains(scanner.Text(), sub) {
 			entry = scanner.Text()
