Re: [PATCH] dma-buf: Discard old fence_excl on retrying get_fences_rcu for realloc

2019-06-04 Thread Koenig, Christian
Am 04.06.19 um 14:39 schrieb Chris Wilson: > If we have to drop the seqcount & rcu lock to perform a krealloc, we > have to restart the loop. In doing so, be careful not to lose track of > the already acquired exclusive fence. > > Fixes: fedf54132d24 ("dma-buf: Restart reservation_object_get_fences

[PATCH] dma-buf: Discard old fence_excl on retrying get_fences_rcu for realloc

2019-06-04 Thread Chris Wilson
If we have to drop the seqcount & rcu lock to perform a krealloc, we have to restart the loop. In doing so, be careful not to lose track of the already acquired exclusive fence. Fixes: fedf54132d24 ("dma-buf: Restart reservation_object_get_fences_rcu() after writes") #v4.10 Signed-off-by: Chris W