linux interrupt handler

[nmeyers at javalinux.net]

On Mon, Jun 14, 2004 at 10:20:28AM -0400, paul.cour1 at verizon.net wrote:
> I am working on some IRQ handler code, and reading interrupt.h There is an expression "wrt" which I don't seem to be able
> to decode into a meaningful word (from my vocabulary).

"with respect to"

Nathan


> 
> 1. In the file interrupt.h there are some comments related to softirqs. Read this snippet and tell me what is inferred 
> by the reference to "wrt" ...
> 
> Comments from interrupt.h
> 
>  * If this tasklet is already running on another CPU 
>  * (or schedule is called
>  * from tasklet itself), it is rescheduled for later.
>  * Tasklet is strictly serialized wrt itself, but not  <----here?
>  * wrt another tasklets. If client needs some intertask
>  * synchronization, he makes it with spinlocks.
>  *
>  */
> 
> 
> 2. Googling around, I find the same expression "wrt" 
> referenced as below.
> BlockDev - You do (todo) 
> Open & Close - Mount & UnMount 
> request_handler 
> Loop thro the list of CURRENT requests 
> Merge clustered request (if you feel so) 
> Initiate DMA or so if any wrt device & Return  <----- this line ????
> interrupt_handler 
> end_request 
> Call request_handler 
> 
> thanks
> 
> paulc
> 
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