On Mon, Nov 26, 2018 at 09:54:30AM -0700, Keith Busch wrote: > There are no more users relying on blk-mq request states to prevent > double completions, so replace the relatively expensive cmpxchg operation > with WRITE_ONCE. > > Signed-off-by: Keith Busch <keith.busch@xxxxxxxxx> Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>