On Tue, Dec 11, 2018 at 11:11:38AM +0100, Arnd Bergmann wrote: > On Tue, Dec 11, 2018 at 11:08 AM Thierry Reding > <thierry.reding@xxxxxxxxx> wrote: > > > > On Mon, Dec 10, 2018 at 10:51:04PM +0100, Arnd Bergmann wrote: > > > In this usage, the two are completely equivalent, but the > > > completion documents better what is going on, and we generally > > > try to avoid semaphores these days. > > > > > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > > > --- > > > drivers/gpu/host1x/cdma.c | 6 +++--- > > > drivers/gpu/host1x/cdma.h | 4 ++-- > > > 2 files changed, 5 insertions(+), 5 deletions(-) > > > > My understanding is that potentially many userspace processes could be > > blocking on this, which I think is the reason for it being a semaphore. > > Is the completion going to work for those cases as well? > > Yes, it behaves the exact same way here. Great, I'll queue this for v4.22. Thanks, Thierry
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