Re: PATCH/RFC: Bring lin-lwp performance back to the real world

[Andrew Cagney <ac131313@redhat.com>]

> 
> Hrm, possibly.  I needed to create linux-nat.c anyway (I'll need it for
> some things that are definitely not /proc related) but I could be
> persuaded either way on linux_proc_xfer_memory.  It's not focused on
> the "proc" bit as much as the "xfer" bit, but it's definitely using
> /proc.  If you prefer I'll move it, and save linux-nat.c for another
> patch.

Not really my problem (It's a linux / lin-lwp area).  I just figure 
that, if you put it in linux-proc.c, you've a more compelling argument 
for getting the change into 5.3 (as if I'm going to stand in its way :-):

- linux-proc.c provides you with the `prior art'.  The other code in 
that file is pulling an identical trick - using /proc when it should 
really be using ptrace().

- it trims the change back to something more managable (all the config 
parts go) so it is easier to be sure it's right.

enjoy,
Andrew