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From: Kevin Wolf <kwolf@redhat.com>
To: qemu-block@nongnu.org
Date: Mon, 5 Nov 2018 17:37:27 +0100
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Subject: [Qemu-devel] [PULL 19/36] block: Update flags in
bdrv_set_read_only()
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To fully change the read-only state of a node, we must not only change
bs->read_only, but also update bs->open_flags.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
---
block.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/block.c b/block.c
index 9d2adf7962..3132c78f01 100644
--- a/block.c
+++ b/block.c
@@ -281,6 +281,13 @@ int bdrv_set_read_only(BlockDriverState *bs, bool read=
_only, Error **errp)
}
=20
bs->read_only =3D read_only;
+
+ if (read_only) {
+ bs->open_flags &=3D ~BDRV_O_RDWR;
+ } else {
+ bs->open_flags |=3D BDRV_O_RDWR;
+ }
+
return 0;
}
=20
--=20
2.19.1