On 15/06/2015 18:56, Thomas Gleixner wrote:
> On Mon, 15 Jun 2015, Mason wrote:
>
>> A) process-context kernel thread fills a FIFO and calls down(&fifo_empty);
>> B) ISR handles the FIFO-empty interrupt with up(&fifo_empty);
>>
>> However, in case something goes wrong and the interrupt never fire
On Mon, 15 Jun 2015, Mason wrote:
> A) process-context kernel thread fills a FIFO and calls down(&fifo_empty);
> B) ISR handles the FIFO-empty interrupt with up(&fifo_empty);
>
> However, in case something goes wrong and the interrupt never fires,
> I don't want the process to be stuck in an unint
Hello,
The semaphore API provides several flavors of the down primitive:
down, down_interruptible, down_killable, down_trylock, down_timeout
As far as I can tell, they all call __down_common (except down_trylock,
which returns 1 where the others would sleep).
I was looking for a version
1) wi
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