24 May
2023
24 May
'23
8:28 p.m.
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).