Block: two misc fixes
One is for blk-mq, and another is for blk-cgroup.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2208900
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2193077
Signed-off-by: Ming Lei ming.lei@redhat.com
One is for blk-mq, and another is for blk-cgroup.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2208900
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2193077
Signed-off-by: Ming Lei ming.lei@redhat.com