Linus Torvalds <[email protected]> wrote:
> Note that _normal_ writes never need an SFENCE, because they are ordered
> by the core.
>
> The reason to use SFENCE is because of _special_ writes.
I suspect, then, that x86_64 should not have an SFENCE for smp_wmb(), and that
only io_wmb() should have that.
David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
