Amit Shah 4eb05d562e virtio: balloon: leak / fill balloon across S4 ... commit e562966dba added support for S4 to the balloon driver. The freeze function did nothing to free the pages, since reclaiming the pages from the host to immediately give them back (if S4 was successful) seemed wasteful. Also, if S4 wasn't successful, the guest would have to re-fill the balloon. On restore, the pages were supposed to be marked freed and the free page counters were incremented to reflect the balloon was totally deflated. However, this wasn't done right. The pages that were earlier taken away from the guest during a balloon inflation operation were just shown as used pages after a successful restore from S4. Just a fancy way of leaking lots of memory. Instead of trying that, just leak the balloon on freeze and fill it on restore/thaw paths. This works properly now. The optimisation to not leak can be added later on after a bit of refactoring of the code. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>		2012-03-01 09:28:41 +10:30
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config.c
Kconfig	virtio: add HAS_IOMEM dependency to MMIO platform bus driver	2011-11-24 13:04:47 +10:30
Makefile	virtio: Add platform bus driver for memory mapped virtio device	2011-11-02 11:41:01 +10:30
virtio_balloon.c	virtio: balloon: leak / fill balloon across S4	2012-03-01 09:28:41 +10:30
virtio_mmio.c	virtio: harsher barriers for rpmsg.	2012-01-12 15:44:42 +10:30
virtio_pci.c	virtio: pci: add PM notification handlers for restore, freeze, thaw, poweroff	2012-01-12 15:44:44 +10:30
virtio_ring.c	virtio: correct the memory barrier in virtqueue_kick_prepare()	2012-01-28 08:10:23 +10:30
virtio.c	virtio: Add module.h to drivers/virtio users.	2011-10-31 19:32:14 -04:00