Messages in this thread |  | | Date | Mon, 3 Oct 2016 09:09:24 +0530 | From | Vinod Koul <> | Subject | Re: [PATCH V4 05/10] dmaengine: qcom_hidma: make pending_tre_count atomic |
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On Sat, Oct 01, 2016 at 11:19:43AM -0400, Sinan Kaya wrote: > On 10/1/2016 2:19 AM, Vinod Koul wrote: > >> Making it atomic so that it can be updated from multiple contexts. > > How is it multiple contexts? It's either existing context of MSI, not both! > > > > I was trying to mean multiple processor contexts here. The driver allocates 11 > MSI interrupts. Each MSI interrupt can be assigned to a different CPU. Then, > we have a race condition for common variables as they share the same interrupt > handler with a different cause bit. > > I will put the above description into the commit text.
Sounds better :)
-- ~Vinod
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