Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures

[Segher Boessenkool]

> (and yes, it is perfectly legitimate to
> want a non-volatile read for a data type that you also want to do
> atomic RMW operations on)

...which is undefined behaviour in C (and GCC) when that data is
declared volatile, which is a good argument against implementing
atomics that way in itself.


Segher

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