> > Couldn't they just use the new process_vm_readv() syscalls instead? > > AFAIK those do not require ptrace. > > > We need the register set and hence would need a ptrace.
But the kernel needs to stop to to read the registers. Do you have data how much the latency difference is between an optimized ptrace reader (using PTRACE_GETREGSET) vs the kernel ? -Andi -- 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/
