On Tue, Jun 03, 2014 at 06:05:50PM +0100, David Chisnall wrote: D> On 3 Jun 2014, at 06:01, Adrian Chadd <adr...@freebsd.org> wrote: D> D> > I wonder if in the short term we should just use inlines for now, at D> > least so the methodization can get done without hurting people on D> > ARM/MIPS. D> D> It's probably worth thinking a bit more carefully about the KPI, since it's something we'll likely be stuck with for a long time... D> D> If access to a particular field is on the hot path, and you're never going to want to do interposition, then the obvious thing to do is have a method that returns a pointer to the field so that you can cache it in the caller. Some thought needs to be given there as to whether these things are _Atomic() qualified for when we (eventually) move to C11 for the kernel.
Yes, this is the plan. Some high performance drivers can cache pointers to partial contents of an ifnet(9). -- Totus tuus, Glebius. _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
