From: Alexei Starovoitov <alexei.starovoi...@gmail.com> Date: Wed, 11 Nov 2015 10:11:33 -0800
> bpf_xadd was never meant to be __sync_fetch_and_add equivalent. > From the day one it meant to be atomic_add() as kernel does it. +1 > I did piggy back on __sync in the llvm backend because it was the quick > and dirty way to move forward. > In retrospect I should have introduced a clean intrinstic for that instead, > but it's not too late to do it now. user space we can change at any time > unlike kernel. +1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
