[PATCH 06/16] drm: Protect the master management with a drm_device::master_mutex v3

[Thomas Hellstrom]

On 03/28/2014 12:23 PM, David Herrmann wrote:
> Hi
>
> On Fri, Mar 28, 2014 at 10:34 AM, Thomas Hellstrom
> <thellstrom at vmware.com> wrote:
>> The master management was previously protected by the drm_device::struct_mutex.
>> In order to avoid locking order violations in a reworked dropped master
>> security check in the vmwgfx driver, break it out into a separate master_mutex.
>> Locking order is master_mutex -> struct_mutex.
>>
>> Also remove drm_master::blocked since it's not used.
>>
>> v2: Add an inline comment about what drm_device::master_mutex is protecting.
>> v3: Remove unneeded struct_mutex locks. Fix error returns in
>>     drm_setmaster_ioctl().
> Thanks, looks much better now. Tested on hsw, so I'm fine with pushing
> this into 3.15.
>
> Thanks
> David
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Thanks. Want a Reviewed-By: or Acked-By: added?

/Thomas