From 9c5e6594f15b7364624a3ad40306c396c93a2145 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Thu, 4 May 2017 18:52:40 +0200
Subject: block: Fix write/resize permissions for inactive images
Format drivers for inactive nodes don't need write/resize permissions on
their bs->file and can share write/resize with another VM (in fact, this
is the whole point of keeping images inactive). Represent this fact in
the op blocker system, so that image locking does the right thing
without special-casing inactive images.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
include/block/block.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include/block')
diff --git a/include/block/block.h b/include/block/block.h
index 80d51d8..90932b4 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -435,6 +435,7 @@ int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base,
int64_t sector_num, int nb_sectors, int *pnum);
bool bdrv_is_read_only(BlockDriverState *bs);
+bool bdrv_is_writable(BlockDriverState *bs);
int bdrv_can_set_read_only(BlockDriverState *bs, bool read_only, Error **errp);
int bdrv_set_read_only(BlockDriverState *bs, bool read_only, Error **errp);
bool bdrv_is_sg(BlockDriverState *bs);
--
cgit v1.1