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authorAlexander Duyck <alexander.h.duyck@linux.intel.com>2020-04-15 10:44:08 -0700
committerMichael S. Tsirkin <mst@redhat.com>2020-04-17 06:05:30 -0400
commit31ba514b2fd0495796b506a309eec5f91d747cf1 (patch)
treec3672914a1628c7e805a3064ac1e3f5ed79ca183 /include/uapi
parentdc39cbb4e8bcd684840885f04606a7c649bc97bc (diff)
virtio-balloon: Avoid using the word 'report' when referring to free page hinting
It can be confusing to have multiple features within the same driver that are using the same verbage. As such this patch is creating a union of free_page_report_cmd_id with free_page_hint_cmd_id so that we can clean-up the userspace code a bit in terms of readability while maintaining the functionality of legacy code. Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Link: https://lore.kernel.org/r/20200415174318.13597.99753.stgit@localhost.localdomain Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/virtio_balloon.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/uapi/linux/virtio_balloon.h b/include/uapi/linux/virtio_balloon.h
index 19974392d324..dc3e656470dd 100644
--- a/include/uapi/linux/virtio_balloon.h
+++ b/include/uapi/linux/virtio_balloon.h
@@ -48,8 +48,15 @@ struct virtio_balloon_config {
__u32 num_pages;
/* Number of pages we've actually got in balloon. */
__u32 actual;
- /* Free page report command id, readonly by guest */
- __u32 free_page_report_cmd_id;
+ /*
+ * Free page hint command id, readonly by guest.
+ * Was previously named free_page_report_cmd_id so we
+ * need to carry that name for legacy support.
+ */
+ union {
+ __u32 free_page_hint_cmd_id;
+ __u32 free_page_report_cmd_id; /* deprecated */
+ };
/* Stores PAGE_POISON if page poisoning is in use */
__u32 poison_val;
};