[PATCH v2 06/18] dma-buf: Use sequence counter with associated wound/wait mutex

side critical section because the write_begin/end() functions for this new data type automatically do this. If lockdep is disabled this ww_mutex lock association is compiled out and has neither storage size nor runtime overhead. Signed-off-by: Ahmed S. Darwish --- drivers/dma-buf/dma-resv.c

Re: [PATCH v1 13/25] dma-buf: Use sequence counter with associated wound/wait mutex

On Wed, May 20, 2020, Christian König wrote: > Am 19.05.20 um 23:45 schrieb Ahmed S. Darwish: > > A sequence counter write side critical section must be protected by some > > form of locking to serialize writers. If the serialization primitive is > > not disabling preemption i

[PATCH v1 13/25] dma-buf: Use sequence counter with associated wound/wait mutex

side critical section because the write_begin/end() functions for this new data type automatically do this. If lockdep is disabled this ww_mutex lock association is compiled out and has neither storage size nor runtime overhead. Signed-off-by: Ahmed S. Darwish --- drivers/dma-buf/dma-resv.c