kvm: exit halt polling on need_resched() as well
commit 262de4102c7bb8e59f26a967a8ffe8cce85cc537 upstream.
single_task_running() is usually more general than need_resched()
but CFS_BANDWIDTH throttling will use resched_task() when there
is just one task to get the task to block. This was causing
long-need_resched warnings and was likely allowing VMs to
overrun their quota when halt polling.
Signed-off-by: Ben Segall <[email protected]>
Signed-off-by: Venkatesh Srinivas <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Cc: [email protected]
Reviewed-by: Jim Mattson <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
1 file changed
