On Wed, May 24, 2023 at 11:42:15AM +0530, Kautuk Consul wrote: > My comment was based on the assumption that "all atomic operations are > implicit memory barriers". If that assumption is true then we won't need
It is not -- also see Documentation/atomic_t.txt. Specifically atomic_read() doesn't imply any ordering on any architecture including the strongly ordered TSO-archs (like x86).
