.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
include/linux
aware of ballooned pages and allow memory balloon pages become
movable within a guest, thus avoiding the aforementioned fragmentation issue
Rafael Aquini (3):
mm: introduce compaction and migration for virtio ballooned pages
virtio_balloon: introduce migration primitives to balloon pages
mm: add
against
concurrent list handling operations;
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c | 138 +---
include/linux/virtio_balloon.h | 4 ++
2 files changed, 134 insertions(+), 8 deletions(-)
diff
On Mon, Aug 06, 2012 at 03:06:49PM -0400, Rik van Riel wrote:
>
> Just a plain rename would work.
>
Ok, I will rename it.
> >+static inline bool is_balloon_page(struct page *page)
> >+{
> >+return (page->mapping && page->mapping == balloon_mapping);
> >+}
>
> As an aside, since you are
On Mon, Aug 06, 2012 at 02:38:23PM -0400, Rik van Riel wrote:
> On 08/06/2012 09:56 AM, Rafael Aquini wrote:
>
> >@@ -846,6 +861,21 @@ static int unmap_and_move(new_page_t get_new_page,
> >unsigned long private,
> > goto out;
> >
> >
This patch is only for testing report purposes and shall be dropped in case of
the rest of this patchset getting accepted for merging.
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c | 1 +
include/linux/vm_event_item.h | 2 ++
mm/compaction.c | 1 +
mm
against
concurrent list handling operations;
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c | 138 +---
include/linux/virtio_balloon.h | 4 ++
2 files changed, 134 insertions(+), 8 deletions(-)
diff --git a/drivers
.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini
---
include/linux/mm.h | 26
ose
subsystems aware of ballooned pages and allow memory balloon pages become
movable within a guest, thus avoiding the aforementioned fragmentation issue
Rafael Aquini (3):
mm: introduce compaction and migration for virtio ballooned pages
virtio_balloon: introduce migration primitives to ball
aware of ballooned pages and allow memory balloon pages become
movable within a guest, thus avoiding the aforementioned fragmentation issue
Rafael Aquini (3):
mm: introduce compaction and migration for virtio ballooned pages
virtio_balloon: introduce migration primitives to balloon pages
mm: add
.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
include/linux
against
concurrent list handling operations;
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c | 138 +---
include/linux/virtio_balloon.h | 4 ++
2 files changed, 134 insertions(+), 8 deletions(-)
diff
This patch is only for testing report purposes and shall be dropped in case of
the rest of this patchset getting accepted for merging.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c | 1 +
include/linux/vm_event_item.h | 2 ++
mm/compaction.c
On Mon, Aug 06, 2012 at 02:38:23PM -0400, Rik van Riel wrote:
On 08/06/2012 09:56 AM, Rafael Aquini wrote:
@@ -846,6 +861,21 @@ static int unmap_and_move(new_page_t get_new_page,
unsigned long private,
goto out;
rc = __unmap_and_move(page, newpage, force
On Mon, Aug 06, 2012 at 03:06:49PM -0400, Rik van Riel wrote:
Just a plain rename would work.
Ok, I will rename it.
+static inline bool is_balloon_page(struct page *page)
+{
+return (page-mapping page-mapping == balloon_mapping);
+}
As an aside, since you are only comparing
On Mon, Jul 23, 2012 at 11:33:32AM +0900, Minchan Kim wrote:
> Look at memory-hotplug, offline_page calls has_unmovable_pages, scan_lru_pages
> and do_migrate_range which calls isolate_lru_page. They consider only LRU
> pages
> to migratable ones.
>
As promised, I looked into those bits. Yes,
On Wed, Aug 01, 2012 at 04:53:47PM -0400, Rik van Riel wrote:
> On 07/23/2012 02:19 PM, Rafael Aquini wrote:
>
> >In a glance, I believe this whole dance you're suggesting might just be too
> >much
> >of an overcomplication, and the best approach would be simply teac
On Wed, Aug 01, 2012 at 04:53:47PM -0400, Rik van Riel wrote:
On 07/23/2012 02:19 PM, Rafael Aquini wrote:
In a glance, I believe this whole dance you're suggesting might just be too
much
of an overcomplication, and the best approach would be simply teaching the
hotplug bits about
On Mon, Jul 23, 2012 at 11:33:32AM +0900, Minchan Kim wrote:
Look at memory-hotplug, offline_page calls has_unmovable_pages, scan_lru_pages
and do_migrate_range which calls isolate_lru_page. They consider only LRU
pages
to migratable ones.
As promised, I looked into those bits. Yes, they
On Mon, Jul 23, 2012 at 11:33:32AM +0900, Minchan Kim wrote:
> Hi Rafael,
>
> On Fri, Jul 20, 2012 at 04:48:59PM -0300, Rafael Aquini wrote:
> > Howdy Minchan,
> >
> > Once again, thanks for raising such valuable feedback over here.
> >
> > On Wed, Jul 18
On Mon, Jul 23, 2012 at 11:33:32AM +0900, Minchan Kim wrote:
Hi Rafael,
On Fri, Jul 20, 2012 at 04:48:59PM -0300, Rafael Aquini wrote:
Howdy Minchan,
Once again, thanks for raising such valuable feedback over here.
On Wed, Jul 18, 2012 at 02:48:24PM +0900, Minchan Kim wrote
Howdy Minchan,
Once again, thanks for raising such valuable feedback over here.
On Wed, Jul 18, 2012 at 02:48:24PM +0900, Minchan Kim wrote:
> > +/* __isolate_lru_page() counterpart for a ballooned page */
> > +static bool isolate_balloon_page(struct page *page)
> > +{
> > + if
Howdy Minchan,
Once again, thanks for raising such valuable feedback over here.
On Wed, Jul 18, 2012 at 02:48:24PM +0900, Minchan Kim wrote:
+/* __isolate_lru_page() counterpart for a ballooned page */
+static bool isolate_balloon_page(struct page *page)
+{
+ if
On Wed, Jul 18, 2012 at 06:29:44PM -0700, Andrew Morton wrote:
> On Wed, 18 Jul 2012 22:00:48 -0300 Rafael Aquini wrote:
>
> > > So the function needs a better name - one which communicates that it is
> > > a balloon page *for the purposes of processing by the compact
On Wed, Jul 18, 2012 at 06:29:44PM -0700, Andrew Morton wrote:
On Wed, 18 Jul 2012 22:00:48 -0300 Rafael Aquini aqu...@redhat.com wrote:
So the function needs a better name - one which communicates that it is
a balloon page *for the purposes of processing by the compaction code
On Wed, Jul 18, 2012 at 04:12:39PM -0700, Andrew Morton wrote:
> On Wed, 18 Jul 2012 20:07:07 -0300
> Rafael Aquini wrote:
>
> > >
> > > > +}
> > > > +#else
> > > > +static inline bool is_balloon_page(struct page *page)
Howdy Andrew,
Thanks for taking the time to go through this work and provide me with such good
feedback.
On Wed, Jul 18, 2012 at 03:49:08PM -0700, Andrew Morton wrote:
> On Tue, 17 Jul 2012 13:50:42 -0300
> Rafael Aquini wrote:
>
> > Besides making balloon pages movable at
Howdy Andrew,
Thanks for taking the time to go through this work and provide me with such good
feedback.
On Wed, Jul 18, 2012 at 03:46:05PM -0700, Andrew Morton wrote:
> On Tue, 17 Jul 2012 13:50:41 -0300
> Rafael Aquini wrote:
>
> > This patch introduces the helper fu
Howdy Andrew,
Thanks for taking the time to go through this work and provide me with such good
feedback.
On Wed, Jul 18, 2012 at 03:46:05PM -0700, Andrew Morton wrote:
On Tue, 17 Jul 2012 13:50:41 -0300
Rafael Aquini aqu...@redhat.com wrote:
This patch introduces the helper functions
Howdy Andrew,
Thanks for taking the time to go through this work and provide me with such good
feedback.
On Wed, Jul 18, 2012 at 03:49:08PM -0700, Andrew Morton wrote:
On Tue, 17 Jul 2012 13:50:42 -0300
Rafael Aquini aqu...@redhat.com wrote:
Besides making balloon pages movable
On Wed, Jul 18, 2012 at 04:12:39PM -0700, Andrew Morton wrote:
On Wed, 18 Jul 2012 20:07:07 -0300
Rafael Aquini aqu...@redhat.com wrote:
+}
+#else
+static inline bool is_balloon_page(struct page *page) { return
false; }
+static inline bool isolate_balloon_page
pages list against
concurrent list handling operations;
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c | 145 ---
include/linux/virtio_balloon.h |4 ++
2 files changed, 141 insertions(+), 8 deletions(-)
diff --git
This patch is only for testing report purposes and shall be dropped in case of
the rest of this patchset getting accepted for merging.
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c |1 +
include/linux/vm_event_item.h |2 ++
mm/compaction.c |1
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini
---
include/linux/mm.h
ose
subsystems aware of ballooned pages and allow memory balloon pages become
movable within a guest, thus avoiding the aforementioned fragmentation issue
Rafael Aquini (3):
mm: introduce compaction and migration for virtio ballooned pages
virtio_balloon: introduce migration primitives to ball
aware of ballooned pages and allow memory balloon pages become
movable within a guest, thus avoiding the aforementioned fragmentation issue
Rafael Aquini (3):
mm: introduce compaction and migration for virtio ballooned pages
virtio_balloon: introduce migration primitives to balloon pages
mm: add
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini aqu...@redhat.com
This patch is only for testing report purposes and shall be dropped in case of
the rest of this patchset getting accepted for merging.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c |1 +
include/linux/vm_event_item.h |2 ++
mm/compaction.c
pages list against
concurrent list handling operations;
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c | 145 ---
include/linux/virtio_balloon.h |4 ++
2 files changed, 141 insertions(+), 8
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