On 11.03.24 19:12, mhkelle...@gmail.com wrote:
From: Michael Kelley
The Hyper-V balloon driver supports hot-add of memory in addition
to ballooning. Current code hot-adds in fixed size chunks of
128 Mbytes (fixed constant HA_CHUNK in the code). While this works
in Hyper-V VMs with 64 Gbytes or
On 29.04.24 17:30, Michael Kelley wrote:
From: Michael Kelley Sent: Friday, April 26, 2024 9:36 AM
@@ -505,8 +505,9 @@ enum hv_dm_state {
static __u8 recv_buffer[HV_HYP_PAGE_SIZE];
static __u8 balloon_up_send_buffer[HV_HYP_PAGE_SIZE];
+static unsigned long ha_chunk_pgs;
Why not stick t
, which is the case here.
Signed-off-by: Michael Kelley
---
Changes in v2:
* No changes. This is a new patch that goes with v2 of patch 2 of this series.
Reviewed-by: David Hildenbrand
--
Cheers,
David / dhildenb
f 256 MiB and 2 GiB shows correct operation.
Signed-off-by: Michael Kelley
---
Changes in v2:
* Change new global variable name from ha_chunk_pgs to
ha_pages_in_chunk [David Hildenbrand]
* Use kernel macros ALIGN(), ALIGN_DOWN(), and umin()
to simplify code and reduce references to HA_CHUNK
fano Stabellini
Cc: Oleksandr Tyshchenko
Cc: Alexander Potapenko
Cc: Marco Elver
Cc: Dmitry Vyukov
David Hildenbrand (3):
mm: pass meminit_context to __free_pages_core()
mm/memory_hotplug: initialize memmap of !ZONE_DEVICE with
PageOffline() instead of PageReserved()
mm/memory_hotplug:
emory freed via memblock
cannot currently use adjust_managed_page_count().
Signed-off-by: David Hildenbrand
---
mm/internal.h | 3 ++-
mm/kmsan/init.c | 2 +-
mm/memory_hotplug.c | 9 +
mm/mm_init.c| 4 ++--
mm/page_alloc.c | 17 +++--
5 files change
.
We'll leave the ZONE_DEVICE case alone for now.
Signed-off-by: David Hildenbrand
---
drivers/hv/hv_balloon.c | 5 ++---
drivers/virtio/virtio_mem.c | 18 --
drivers/xen/balloon.c | 9 +++--
include/linux/page-flags.h | 12 +---
mm/memory_hotplug.c
We currently have a hack for virtio-mem in place to handle memory
offlining with PageOffline pages for which we already adjusted the
managed page count.
Let's enlighten memory offlining code so we can get rid of that hack,
and document the situation.
Signed-off-by: David Hilden
On 07.06.24 11:09, David Hildenbrand wrote:
In preparation for further changes, let's teach __free_pages_core()
about the differences of memory hotplug handling.
Move the memory hotplug specific handling from generic_online_page() to
__free_pages_core(), use adjust_managed_page_count() o
On 10.06.24 06:03, Oscar Salvador wrote:
On Fri, Jun 07, 2024 at 11:09:36AM +0200, David Hildenbrand wrote:
In preparation for further changes, let's teach __free_pages_core()
about the differences of memory hotplug handling.
Move the memory hotplug specific handling from generic_online
On 10.06.24 06:23, Oscar Salvador wrote:
On Fri, Jun 07, 2024 at 11:09:37AM +0200, David Hildenbrand wrote:
We currently initialize the memmap such that PG_reserved is set and the
refcount of the page is 1. In virtio-mem code, we have to manually clear
that PG_reserved flag to make memory
On 10.06.24 06:29, Oscar Salvador wrote:
On Fri, Jun 07, 2024 at 11:09:38AM +0200, David Hildenbrand wrote:
We currently have a hack for virtio-mem in place to handle memory
offlining with PageOffline pages for which we already adjusted the
managed page count.
Let's enlighten memory offl
On 11.06.24 09:45, Oscar Salvador wrote:
On Mon, Jun 10, 2024 at 10:56:02AM +0200, David Hildenbrand wrote:
There are fortunately not that many left.
I'd even say marking them (vmemmap) reserved is more wrong than right: note
that ordinary vmemmap pages after memory hotplug are not res
On 07.06.24 11:09, David Hildenbrand wrote:
We currently initialize the memmap such that PG_reserved is set and the
refcount of the page is 1. In virtio-mem code, we have to manually clear
that PG_reserved flag to make memory offlining with partially hotplugged
memory blocks possible
On 07.06.24 11:09, David Hildenbrand wrote:
In preparation for further changes, let's teach __free_pages_core()
about the differences of memory hotplug handling.
Move the memory hotplug specific handling from generic_online_page() to
__free_pages_core(), use adjust_managed_page_count() o
On 11.06.24 21:19, Andrew Morton wrote:
On Tue, 11 Jun 2024 12:06:56 +0200 David Hildenbrand wrote:
On 07.06.24 11:09, David Hildenbrand wrote:
In preparation for further changes, let's teach __free_pages_core()
about the differences of memory hotplug handling.
Move the memory ho
On 11.06.24 21:41, Tim Chen wrote:
On Fri, 2024-06-07 at 11:09 +0200, David Hildenbrand wrote:
In preparation for further changes, let's teach __free_pages_core()
about the differences of memory hotplug handling.
Move the memory hotplug specific handling from generic_online_page
On 11.06.24 21:19, Andrew Morton wrote:
On Tue, 11 Jun 2024 12:06:56 +0200 David Hildenbrand wrote:
On 07.06.24 11:09, David Hildenbrand wrote:
In preparation for further changes, let's teach __free_pages_core()
about the differences of memory hotplug handling.
Move the memory ho
On 26.06.24 00:43, Andrew Morton wrote:
afaict we're in decent state to move this series into mm-stable. I've
tagged the following issues:
https://lkml.kernel.org/r/80532f73e52e2c21fdc9aac7bce24aefb76d11b0.ca...@linux.intel.com
https://lkml.kernel.org/r/30b5d493-b7c2-4e63-86c1-dcc73d21d...@redh
On 13.03.25 18:35, Nico Pache wrote:
On Thu, Mar 13, 2025 at 2:22 AM David Hildenbrand wrote:
On 13.03.25 00:04, Nico Pache wrote:
On Wed, Mar 12, 2025 at 4:19 PM David Hildenbrand wrote:
On 12.03.25 01:06, Nico Pache wrote:
Add NR_BALLOON_PAGES counter to track memory used by balloon
On 12.03.25 01:06, Nico Pache wrote:
Add NR_BALLOON_PAGES counter to track memory used by balloon drivers and
expose it through /proc/meminfo and other memory reporting interfaces.
In balloon_page_enqueue_one(), we perform a
__count_vm_event(BALLOON_INFLATE)
and in balloon_page_list_dequeue
On 13.03.25 00:04, Nico Pache wrote:
On Wed, Mar 12, 2025 at 4:19 PM David Hildenbrand wrote:
On 12.03.25 01:06, Nico Pache wrote:
Add NR_BALLOON_PAGES counter to track memory used by balloon drivers and
expose it through /proc/meminfo and other memory reporting interfaces.
In
On 13.03.25 08:20, Michael S. Tsirkin wrote:
On Wed, Mar 12, 2025 at 11:19:06PM +0100, David Hildenbrand wrote:
On 12.03.25 01:06, Nico Pache wrote:
Add NR_BALLOON_PAGES counter to track memory used by balloon drivers and
expose it through /proc/meminfo and other memory reporting interfaces
On 12.03.25 21:11, Nico Pache wrote:
On Wed, Mar 12, 2025 at 12:57 AM Michael S. Tsirkin wrote:
On Tue, Mar 11, 2025 at 06:06:59PM -0600, Nico Pache wrote:
Update the NR_BALLOON_PAGES counter when pages are added to or
removed from the VMware balloon.
Signed-off-by: Nico Pache
---
drivers
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