From: Nadav Amit Sent: September 26, 2018 at 7:13:16 PM GMT > To: Arnd Bergmann <arnd@xxxxxxxx>, gregkh@xxxxxxxxxxxxxxxxxxx > Cc: Xavier Deguillard <xdeguillard@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx>, Nadav Amit <namit@xxxxxxxxxx>, Michael S. Tsirkin <mst@xxxxxxxxxx>, Jason Wang <jasowang@xxxxxxxxxx>, linux-mm@xxxxxxxxx>, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx > Subject: [PATCH v3 00/20] vmw_balloon: compaction, shrinker, 64-bit, etc. > > > This patch-set adds the following enhancements to the VMware balloon > driver: > > 1. Balloon compaction support. > 2. Report the number of inflated/deflated ballooned pages through vmstat. > 3. Memory shrinker to avoid balloon over-inflation (and OOM). > 4. Support VMs with memory limit that is greater than 16TB. > 5. Faster and more aggressive inflation. > > To support compaction we wish to use the existing infrastructure. > However, we need to make slight adaptions for it. We add a new list > interface to balloon-compaction, which is more generic and efficient, > since it does not require as many IRQ save/restore operations. We leave > the old interface that is used by the virtio balloon. > > Big parts of this patch-set are cleanup and documentation. Patches 1-13 > simplify the balloon code, document its behavior and allow the balloon > code to run concurrently. The support for concurrency is required for > compaction and the shrinker interface. > > For documentation we use the kernel-doc format. We are aware that the > balloon interface is not public, but following the kernel-doc format may > be useful one day. > > v2->v3: * Moving the balloon magic-number out of uapi (Greg) > > v1->v2: * Fix build error when THP is off (kbuild) > * Fix build error on i386 (kbuild) > Greg, I realize you didn’t apply patches 17-20. Any reason for that? Thanks, Nadav
