Re: [PATCH V4 05/10] dmaengine: qcom_hidma: make pending_tre_count atomic

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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
--
To unsubscribe from this list: send the line "unsubscribe dmaengine" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux PCI]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux