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block: Drop permissions when migration completes

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With image locking, permissions affect other qemu processes as well. We
want to be sure that the destination can run, so let's drop permissions
on the source when migration completes.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2017-05-04 18:52:38 +02:00
parent 4417ab7adf
commit cfa1a5723f
3 changed files with 40 additions and 4 deletions
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12
block.c
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@ -4019,7 +4019,7 @@ void bdrv_invalidate_cache_all(Error **errp)
static int bdrv_inactivate_recurse(BlockDriverState *bs,
bool setting_flag)
{
BdrvChild *child;
BdrvChild *child, *parent;
int ret;
if (!setting_flag && bs->drv->bdrv_inactivate) {
@ -4038,6 +4038,16 @@ static int bdrv_inactivate_recurse(BlockDriverState *bs,
if (setting_flag) {
bs->open_flags |= BDRV_O_INACTIVE;
QLIST_FOREACH(parent, &bs->parents, next_parent) {
if (parent->role->inactivate) {
ret = parent->role->inactivate(parent);
if (ret < 0) {
bs->open_flags &= ~BDRV_O_INACTIVE;
return ret;
}
}
}
}
return 0;
}