On 05.08.21 21:02, Zi Yan wrote:
From: Zi Yan <[email protected]>
It keeps the existing behavior when MAX_ORDER grows beyond a section.
... but it breaks/changes existing behavior if MAX_ORDER is smaller than
a section?
Signed-off-by: Zi Yan <[email protected]>
Cc: "Michael S. Tsirkin" <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
---
drivers/virtio/virtio_balloon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 47dce91f788c..de8d0355d827 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -36,7 +36,7 @@
#define VIRTIO_BALLOON_FREE_PAGE_ALLOC_FLAG (__GFP_NORETRY | __GFP_NOWARN | \
__GFP_NOMEMALLOC)
/* The order of free page blocks to report to host */
-#define VIRTIO_BALLOON_HINT_BLOCK_ORDER (MAX_ORDER - 1)
+#define VIRTIO_BALLOON_HINT_BLOCK_ORDER (PFN_SECTION_SHIFT - 1)
/* The size of a free page block in bytes */
#define VIRTIO_BALLOON_HINT_BLOCK_BYTES \
(1 << (VIRTIO_BALLOON_HINT_BLOCK_ORDER + PAGE_SHIFT))
--
Thanks,
David / dhildenb
_______________________________________________
Virtualization mailing list
[email protected]
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
