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Date:	Tue, 1 Jul 2014 22:37:58 -0700
From:	Greg KH <>
To:	Maarten Lankhorst <>
Subject: Re: [PATCH v2 0/9] Updated fence patch series

On Tue, Jul 01, 2014 at 12:57:02PM +0200, Maarten Lankhorst wrote:
> So after some more hacking I've moved dma-buf to its own subdirectory,
> drivers/dma-buf and applied the fence patches to its new place. I believe that the
> first patch should be applied regardless, and the rest should be ready now.
> :-)
> Changes to the fence api:
> - release_fence -> fence_release etc.
> - __fence_init -> fence_init
> - __fence_signal -> fence_signal_locked
> - __fence_is_signaled -> fence_is_signaled_locked
> - Changing BUG_ON to WARN_ON in fence_later, and return NULL if it triggers.
> Android can expose fences to userspace. It's possible to make the new fence
> mechanism expose the same fences to userspace by changing sync_fence_create
> to take a struct fence instead of a struct sync_pt. No other change is needed,
> because only the fence parts of struct sync_pt are used. But because the
> userspace fences are a separate problem and I haven't really looked at it yet
> I feel it should stay in staging, for now.

Ok, that's reasonable.

At first glance, this all looks "sane" to me, any objection from anyone
if I merge this through my driver-core tree for 3.17?


greg k-h
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