Re: Semaphore with timeout....

[Davide Libenzi]

On Thu, 12 Feb 2004, Christoph Hellwig wrote:

> On Thu, Feb 12, 2004 at 08:22:04AM -0500, RANDAZZO@xxxxxxxxxxx wrote:
> > 
> > In reference to loadable kernel modules... (drivers)
> > 
> > Is there a semaphore call that will either release with token or a specified
> > amt of time....
> 
> There's no down_timeout.  Unfortunately - at least the qlogic fibrechannel
> driver would love to have a primitive for that.
> 
> Look at drivers/scsi/qla2xxx/qla_os.c:qla2x00_down_timeout() for a horrible
> hack to emulate one.

Why wouldn't, a timer with a timer function that does signal_wake_up() 
plus a down_interruptible(), work for this?



- Davide



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