Updating the snapshot list will be useful when upgrading a v2 image to
v3, so we will need to call this function in qcow2.c.

Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 block/qcow2.h          | 1 +
 block/qcow2-snapshot.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/block/qcow2.h b/block/qcow2.h
index 290a48b77e..77586d81b9 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -710,6 +710,7 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs,
 
 void qcow2_free_snapshots(BlockDriverState *bs);
 int qcow2_read_snapshots(BlockDriverState *bs, Error **errp);
+int qcow2_write_snapshots(BlockDriverState *bs);
 
 /* qcow2-cache.c functions */
 Qcow2Cache *qcow2_cache_create(BlockDriverState *bs, int num_tables,
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index b037c6e5fd..3d097b92d7 100644
--- a/block/qcow2-snapshot.c
+++ b/block/qcow2-snapshot.c
@@ -163,7 +163,7 @@ fail:
 }
 
 /* add at the end of the file a new list of snapshots */
-static int qcow2_write_snapshots(BlockDriverState *bs)
+int qcow2_write_snapshots(BlockDriverState *bs)
 {
     BDRVQcow2State *s = bs->opaque;
     QCowSnapshot *sn;
-- 
2.21.0

On 7/30/19 12:24 PM, Max Reitz wrote:
> Updating the snapshot list will be useful when upgrading a v2 image to
> v3, so we will need to call this function in qcow2.c.
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  block/qcow2.h          | 1 +
>  block/qcow2-snapshot.c | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 

Reviewed-by: Eric Blake <eblake@redhat.com>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org