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atomic2: fix corruption bug

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This commit is contained in:
Nekotekina 2019-11-04 22:52:45 +03:00
parent be306afae9
commit ec25deed2b
1 changed files with 2 additions and 4 deletions
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6
rpcs3/util/atomic2.cpp
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@ -388,8 +388,6 @@ bool stx::multi_cas_record::commit() const noexcept
if (m_count == 1)
{
atomic2 cmp;
cmp.m_data[0] = m_list[0].m_old;
cmp.m_data[1] = 0;
while (auto ptr = m_list[0].m_addr)
{
@ -398,6 +396,7 @@ bool stx::multi_cas_record::commit() const noexcept
return false;
}
cmp.m_data[0] = m_list[0].m_old;
cmp.m_data[1] = atomic_storage<s64>::load(ptr->m_data[1]);
if (!cmp.m_data[1] && cmpxchg16(ptr->m_data, cmp.m_data, 0, m_list[0].m_new))
@ -461,8 +460,6 @@ bool stx::multi_cas_record::commit() const noexcept
for (u32 i = 0; i < m_count && (s_records[id].m_state & s_state_mask) == s_state_undef; i++)
{
atomic2 cmp;
cmp.m_data[0] = m_list[i].m_old;
cmp.m_data[1] = 0;
while (auto ptr = m_list[i].m_addr)
{
@ -472,6 +469,7 @@ bool stx::multi_cas_record::commit() const noexcept
break;
}
cmp.m_data[0] = m_list[i].m_old;
cmp.m_data[1] = atomic_storage<s64>::load(ptr->m_data[1]);
if (!cmp.m_data[1] && cmpxchg16(ptr->m_data, cmp.m_data, id, m_list[i].m_old))