diff options
| author | Sean Christopherson <seanjc@google.com> | 2024-03-14 19:54:55 +0100 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-04-29 21:50:42 +0200 |
| commit | 73369acd9fbdf6cbf3029cace886abcc626f46ad (patch) | |
| tree | bf1452726af1fc9e564e86c6e9ec1887b6da4296 /tools/testing/selftests/kvm/lib | |
| parent | KVM: selftests: Provide a global pseudo-RNG instance for all tests (diff) | |
| download | linux-73369acd9fbdf6cbf3029cace886abcc626f46ad.tar.xz linux-73369acd9fbdf6cbf3029cace886abcc626f46ad.zip | |
KVM: selftests: Provide an API for getting a random bool from an RNG
Move memstress' random bool logic into common code to avoid reinventing
the wheel for basic yes/no decisions. Provide an outer wrapper to handle
the basic/common case of just wanting a 50/50 chance of something
happening.
Link: https://lore.kernel.org/r/20240314185459.2439072-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm/lib')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/memstress.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/kvm/lib/memstress.c b/tools/testing/selftests/kvm/lib/memstress.c index 3b7fe1778d7b..aa0a01988150 100644 --- a/tools/testing/selftests/kvm/lib/memstress.c +++ b/tools/testing/selftests/kvm/lib/memstress.c @@ -74,7 +74,7 @@ void memstress_guest_code(uint32_t vcpu_idx) addr = gva + (page * args->guest_page_size); - if (guest_random_u32(&rand_state) % 100 < args->write_percent) + if (__guest_random_bool(&rand_state, args->write_percent)) *(uint64_t *)addr = 0x0123456789ABCDEF; else READ_ONCE(*(uint64_t *)addr); |