On Mon, Mar 20, 2023 at 01:28:13PM +0100, Petr Tesarik wrote: > From: Petr Tesarik <petr.tesarik.ext@xxxxxxxxxx> > > Introduce a DMA attribute to tell the DMA-mapping subsystem that > the operation is allowed to sleep. > > This patch merely adds the flag, which is not used for anything at > the moment. It should be used by users who can sleep (e.g. dma-buf > ioctls) to allow page reclaim and/or allocations from CMA. So what drivers would call this? As-is it doesn't have any users in the series.