fix: reduce an extra system call for writes instead fail later (#10187)

cmd/xl-storage_test.go

@@ -1766,55 +1766,3 @@ func TestCheckDiskTotalMin(t *testing.T) {
 		}
 	}
 }
-
-// Checks for restrictions for min free disk space and inodes.
-func TestCheckDiskFreeMin(t *testing.T) {
-	testCases := []struct {
-		diskInfo disk.Info
-		err      error
-	}{
-		// Test 1 - when fstype is nfs.
-		{
-			diskInfo: disk.Info{
-				Free:   diskMinTotalSpace * 3,
-				FSType: "NFS",
-			},
-			err: nil,
-		},
-		// Test 2 - when fstype is xfs and total inodes are less than 10k.
-		{
-			diskInfo: disk.Info{
-				Free:   diskMinTotalSpace * 3,
-				FSType: "XFS",
-				Files:  9999,
-				Ffree:  9999,
-			},
-			err: nil,
-		},
-		// Test 3 - when fstype is btrfs and total inodes are empty.
-		{
-			diskInfo: disk.Info{
-				Free:   diskMinTotalSpace * 3,
-				FSType: "BTRFS",
-				Files:  0,
-			},
-			err: nil,
-		},
-		// Test 4 - when fstype is xfs and total disk space is really small.
-		{
-			diskInfo: disk.Info{
-				Free:   diskMinTotalSpace - diskMinTotalSpace/1024,
-				FSType: "XFS",
-				Files:  9999,
-			},
-			err: errDiskFull,
-		},
-	}
-
-	// Validate all cases.
-	for i, test := range testCases {
-		if err := checkDiskMinFree(test.diskInfo); test.err != err {
-			t.Errorf("Test %d: Expected error %s, got %s", i+1, test.err, err)
-		}
-	}
-}