Messages in this thread | | | From | Segher Boessenkool <> | Subject | Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures | Date | Sat, 18 Aug 2007 00:14:30 +0200 |
| |
> (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
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |