Re: [Linaro-mm-sig] [PATCH] dma-buf: make dma_fence structure a bit smaller

Quoting Christian König (2019-08-07 14:54:05)

The ruc and cb_list are never used at the same time. This smal change is actually making the structure 16% smaller.

(Trivial pair of typos)

Yes. We clear the callback list on kref_put so that by the time we release the fence it is unused. No one should be adding to the cb_list that they don't themselves hold a reference for, this only now makes for a much more spectacular use-after-free. :)

Signed-off-by: Christian König christian.koenig@amd.com

Reviewed-by: Chris Wilson chris@chris-wilson.co.uk -Chris