Messages in this thread | | | From | Arnd Bergmann <> | Date | Tue, 11 Dec 2018 11:11:38 +0100 | Subject | Re: [PATCH] host1x: cdma: use completion instead of semaphore |
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On Tue, Dec 11, 2018 at 11:08 AM Thierry Reding <thierry.reding@gmail.com> 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@arndb.de> > > --- > > 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.
Arnd
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