Messages in this thread | | | Date | Tue, 9 Oct 2012 12:47:55 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH 1/2] mm: Export vm_committed_as |
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On Mon, 8 Oct 2012 06:35:39 -0700 Greg KH <gregkh@linuxfoundation.org> wrote:
> On Mon, Oct 08, 2012 at 03:35:50AM +0000, KY Srinivasan wrote: > > > > > > > -----Original Message----- > > > From: Greg KH [mailto:gregkh@linuxfoundation.org] > > > Sent: Sunday, October 07, 2012 8:44 PM > > > To: KY Srinivasan > > > Cc: linux-kernel@vger.kernel.org; devel@linuxdriverproject.org; olaf@aepfle.de; > > > apw@canonical.com; akpm@linux-foundation.org; andi@firstfloor.org > > > 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?
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