vvfat: Implement .bdrv_child_perm()

vvfat is the last remaining driver that can have children, but doesn't
implement .bdrv_child_perm() yet. The default handlers aren't suitable
here, so let's implement a very simple driver-specific one that protects
the internal child from being used by other users as good as our
permissions permit.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
This commit is contained in:
Kevin Wolf 2016-12-20 16:23:46 +01:00
parent 862f215fab
commit 91ef38257a
3 changed files with 24 additions and 1 deletions

View file

@ -823,7 +823,7 @@ static void bdrv_backing_options(int *child_flags, QDict *child_options,
*child_flags = flags;
}
static const BdrvChildRole child_backing = {
const BdrvChildRole child_backing = {
.inherit_options = bdrv_backing_options,
.drained_begin = bdrv_child_cb_drained_begin,
.drained_end = bdrv_child_cb_drained_end,