On Mon, 8 Oct 2012 06:35:39 -0700 Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Mon, Oct 08, 2012 at 03:35:50AM +0000, KY Srinivasan wrote: > > > > > > > -----Original Message----- > > > From: Greg KH [mailto:gregkh@xxxxxxxxxxxxxxxxxxx] > > > Sent: Sunday, October 07, 2012 8:44 PM > > > To: KY Srinivasan > > > Cc: linux-kernel@xxxxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; olaf@xxxxxxxxx; > > > apw@xxxxxxxxxxxxx; akpm@xxxxxxxxxxxxxxxxxxxx; andi@xxxxxxxxxxxxxx > > > Subject: Re: [PATCH 1/2] mm: Export vm_committed_as > > > > > > On Sun, Oct 07, 2012 at 04:59:45PM -0700, K. Y. Srinivasan wrote: > > > > The policy engine on the host expects the guest to report the > > > > committed_as. Since this variable is not exported, > > > > export this symbol. > > > > > > Why are these symbols not needed by either Xen or KVM or vmware, which > > > I think all support the same thing, right? > > > > The basic balloon driver does not need this symbol since the basic balloon driver > > is not automatically driven by the host. On the Windows host we have a policy engine that > > drives the balloon driver based on both guest level memory pressure that the guest > > reports as well as other system level metrics the host maintains. We need this symbol to > > drive the policy engine on the host. > > Ok, but you're going to have to get the -mm developers to agree that > this is ok before I can accept it. Well I guess it won't kill us. I do wonder what relevance vm_committed_as has to processes which are running within a memcg container? _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
