diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2017-08-03 17:02:58 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-08-08 15:19:16 +0200 |
| commit | 54a32bfec140e03ebb19863db944b1c81e4df25e (patch) | |
| tree | 0864d8b41fb3d75889c8c588a5fc96b5cb890a80 /include/block/block.h | |
| parent | 8aecf1d1bd250a7346165de154f5ccc150ad1aa7 (diff) | |
block: Allow reopen rw without BDRV_O_ALLOW_RDWR
BDRV_O_ALLOW_RDWR is a flag that tells whether qemu can internally
reopen a node read-write temporarily because the user requested
read-write for the top-level image, but qemu decided that read-only is
enough for this node (a backing file).
bdrv_reopen() is different, it is also used for cases where the user
changed their mind and wants to update the options. There is no reason
to forbid making a node read-write in that case.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Diffstat (limited to 'include/block/block.h')
| -rw-r--r-- | include/block/block.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/block/block.h b/include/block/block.h index 34770bb33a..ab80195378 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -436,7 +436,8 @@ int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base, 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_can_set_read_only(BlockDriverState *bs, bool read_only, + bool ignore_allow_rdw, Error **errp); int bdrv_set_read_only(BlockDriverState *bs, bool read_only, Error **errp); bool bdrv_is_sg(BlockDriverState *bs); bool bdrv_is_inserted(BlockDriverState *bs); |