[virtio-dev] [PATCH v23 QEMU 1/5] linux-headers: Update to allow renaming of free_page_report_cmd_id

[Alexander Duyck <alexander.duyck@gmail.com>]

From: Alexander Duyck <alexander.h.duyck@linux.intel.com>

Sync to the latest upstream changes for free page hinting. To be
replaced by a full linux header sync.

Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
---
 include/standard-headers/linux/virtio_balloon.h |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/include/standard-headers/linux/virtio_balloon.h b/include/standard-headers/linux/virtio_balloon.h
index 9375ca2a70de..af0a6b59dab2 100644
--- a/include/standard-headers/linux/virtio_balloon.h
+++ b/include/standard-headers/linux/virtio_balloon.h
@@ -47,8 +47,15 @@ struct virtio_balloon_config {
 	uint32_t num_pages;
 	/* Number of pages we've actually got in balloon. */
 	uint32_t actual;
-	/* Free page report command id, readonly by guest */
-	uint32_t free_page_report_cmd_id;
+	/*
+	 * Free page hint command id, readonly by guest.
+	 * Was previously name free_page_report_cmd_id so we
+	 * need to carry that name for legacy support.
+	 */
+	union {
+		uint32_t free_page_hint_cmd_id;
+		uint32_t free_page_report_cmd_id;	/* deprecated */
+	};
 	/* Stores PAGE_POISON if page poisoning is in use */
 	uint32_t poison_val;
 };


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