[Intel-gfx] [PATCH] drm/i915: Unref context on failed eb_create

Daniel Vetter daniel at ffwll.ch
Sat Apr 5 17:24:35 CEST 2014


On Sat, Apr 05, 2014 at 07:24:01AM +0100, Chris Wilson wrote:
> On Fri, Apr 04, 2014 at 10:41:07PM -0700, Ben Widawsky wrote:
> > I opted to do this instead of grabbing the context reference after
> > eb_create since eb_create can potentially call the shrinker, and that
> > makes things very complicated. This simple patch balances the ref count
> > without requiring a great deal of review to make sure the shrinker path
> > is safe.
> > 
> > Theoretically (by design) the shrinker can end up destroying a context,
> > which enforces the reasoning for doing the fix this way instead of
> > moving the reference to later in the function.
> > 
> > Cc: Chris Wilson <chris at chris-wilson.co.uk>
> > Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
> 
> Even the whitespace fix is correct.
> Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>

Queued for -next, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch



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