diff options
Diffstat (limited to 'test/syscalls/linux/msync.cc')
| -rw-r--r-- | test/syscalls/linux/msync.cc | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/test/syscalls/linux/msync.cc b/test/syscalls/linux/msync.cc index 0ddc621aa..72d90dc78 100644 --- a/test/syscalls/linux/msync.cc +++ b/test/syscalls/linux/msync.cc @@ -43,14 +43,13 @@ class MsyncParameterizedTest : public ::testing::TestWithParam<MsyncTestParam> { protected: int msync_flags() const { return std::get<0>(GetParam()); } - PosixErrorOr<Mapping> GetMapping() const { - auto rv = std::get<1>(GetParam())(); - return rv; - } + PosixErrorOr<Mapping> GetMapping() const { return std::get<1>(GetParam())(); } }; -// All valid msync(2) flag combinations (not including MS_INVALIDATE, which -// gVisor doesn't implement). +// All valid msync(2) flag combinations, not including MS_INVALIDATE. ("Linux +// permits a call to msync() that specifies neither [MS_SYNC or MS_ASYNC], with +// semantics that are (currently) equivalent to specifying MS_ASYNC." - +// msync(2)) constexpr std::initializer_list<int> kMsyncFlags = {MS_SYNC, MS_ASYNC, 0}; // Returns functions that return mappings that should be successfully @@ -134,6 +133,15 @@ TEST_P(MsyncFullParamTest, UnalignedAddressFails) { SyscallFailsWithErrno(EINVAL)); } +TEST_P(MsyncFullParamTest, InvalidateUnlockedSucceeds) { + auto m = ASSERT_NO_ERRNO_AND_VALUE(GetMapping()); + EXPECT_THAT(msync(m.ptr(), m.len(), msync_flags() | MS_INVALIDATE), + SyscallSucceeds()); +} + +// The test for MS_INVALIDATE on mlocked pages is in mlock.cc since it requires +// probing for mlock support. + INSTANTIATE_TEST_CASE_P( All, MsyncFullParamTest, ::testing::Combine(::testing::ValuesIn(kMsyncFlags), |