Re: [PATCH 2/2] drm/i915: Fallback to single page pwrite/pread if unable to release fence

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On ke, 2016-08-17 at 18:33 +0100, Chris Wilson wrote:
> If we cannot release the fence (for example if someone is inexplicably
> trying to write into a tiled framebuffer that is currently pinned to the
> display! *cough* kms_frontbuffer_tracking *cough*) fallback to using the
> page-by-page pwrite/pread interface, rather than fail the syscall
> entirely.
> 
> Since this is triggerable by the user (along pwrite) we have to remove
> the WARN_ON(fence->pin_count).
> 
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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