On 07/31/2018 11:09 PM, Greg KH wrote:
On Tue, Jul 31, 2018 at 06:05:46PM +0800, hang.yuan@xxxxxxxxxxxxxxx wrote:From: Hang Yuan <hang.yuan@xxxxxxxxxxxxxxx> pm_runtime_get_sync in intel_runtime_pm_get might sleep if i915 device is not active. When stop vgpu schedule, the device may be inactive. So need to move runtime_pm_get out of spin_lock/unlock. Fixes: b24881e0b0b6("drm/i915/gvt: Add runtime_pm_get/put into gvt_switch_mmio Signed-off-by: Hang Yuan <hang.yuan@xxxxxxxxxxxxxxx> Signed-off-by: Xiong Zhang <xiong.y.zhang@xxxxxxxxx> --- drivers/gpu/drm/i915/gvt/mmio_context.c | 2 -- drivers/gpu/drm/i915/gvt/sched_policy.c | 3 +++ 2 files changed, 3 insertions(+), 2 deletions(-)<formletter> This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly. </formletter>
Thank you for the guide. I misunderstood the option 1. Regards, Henry
