Tests/Kernel: Add missing mode parameter to open() calls in inode tests

Tests/Kernel/TestEmptyPrivateInodeVMObject.cpp

@@ -30,7 +30,7 @@ TEST_CASE(private_zero_length_inode_vmobject_sync)
         int rc = sigaction(SIGBUS, &new_action, nullptr);
         VERIFY(rc == 0);
     }
-    int fd = open("/tmp/private_msync_test", O_RDWR | O_CREAT);
+    int fd = open("/tmp/private_msync_test", O_RDWR | O_CREAT, 0644);
     VERIFY(fd >= 0);
     private_ptr = (u8*)mmap(nullptr, 0x1000, PROT_READ | PROT_WRITE, MAP_FILE | MAP_PRIVATE, fd, 0);
     EXPECT(private_ptr != MAP_FAILED);

Tests/Kernel/TestEmptySharedInodeVMObject.cpp

@@ -30,7 +30,7 @@ TEST_CASE(shared_zero_length_inode_vmobject_sync)
         int rc = sigaction(SIGBUS, &new_action, nullptr);
         VERIFY(rc == 0);
     }
-    int fd = open("/tmp/shared_msync_test", O_RDWR | O_CREAT);
+    int fd = open("/tmp/shared_msync_test", O_RDWR | O_CREAT, 0644);
     VERIFY(fd >= 0);
     shared_ptr = (u8*)mmap(nullptr, 0x1000, PROT_READ | PROT_WRITE, MAP_FILE | MAP_SHARED, fd, 0);
     EXPECT(shared_ptr != MAP_FAILED);

Tests/Kernel/TestPrivateInodeVMObject.cpp

@@ -36,7 +36,7 @@ TEST_CASE(private_non_empty_inode_vmobject_sync)
     }
     u8 buf[0x1000];
     memset(buf, 0, sizeof(buf));
-    int fd = open("/tmp/private_non_empty_msync_test", O_RDWR | O_CREAT);
+    int fd = open("/tmp/private_non_empty_msync_test", O_RDWR | O_CREAT, 0644);
     VERIFY(fd >= 0);
     auto rc = write(fd, buf, sizeof(buf));
     VERIFY(rc == sizeof(buf));

Tests/Kernel/TestSharedInodeVMObject.cpp

@@ -36,7 +36,7 @@ TEST_CASE(shared_non_empty_inode_vmobject_sync)
     }
     u8 buf[0x1000];
     memset(buf, 0, sizeof(buf));
-    int fd = open("/tmp/shared_non_empty_msync_test", O_RDWR | O_CREAT);
+    int fd = open("/tmp/shared_non_empty_msync_test", O_RDWR | O_CREAT, 0644);
     VERIFY(fd >= 0);
     auto rc = write(fd, buf, sizeof(buf));
     VERIFY(rc == sizeof(buf));