On Fri, 14 Jun 2013 07:52:44 -0400 Simo <idra@xxxxxxxxx> wrote: > On 06/13/2013 04:26 PM, Jeff Layton wrote: > > The only real solution I can think of is to put flock locks into the > > blocked_list/blocked_hash too, or maybe giving them a simple hlist to > > sit on. > > > > I'll fix that up in the next iteration. It'll probably make flock() > > tests run slower, but such is the cost of preserving this procfile... > > How hard would it be to make the procfile stuff optional ? > So that those that need performance can decide to not use it ? > Maybe even something that can be disabled at run time ? Not just compile > time. > (re-adding back the cc lists...) It'd be tricky, especially if you want to do it at runtime. The procfile itself is not a problem per-se. The real problem is the tracking you have to do in order to eventually present the procfile. So a boot-time or compile-time switch might be reasonable, but a runtime switch will probably never really be. I have a new patchset that I'm testing now though that should address Bruce's concerns about iterating over that global list. So far, it seems to be at least as fast as the latest patchset I posted. It makes the (spin)locking a bit more complex, but hopefully I can document this well enough that it's not a great concern. Stay tuned... -- Jeff Layton <jlayton@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
