Re: Interrupt/Sleep deadlock

From: Nigel Gamble (nigel@mvista.com)
Date: Thu Sep 28 2000 - 21:41:47 EST


You could use a semaphore for this. Initialize it to 0, then call
down() from the ioctl, and up() from the interrupt handler. If the
up() happens before the down(), the down() won't go to sleep.

Nigel

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Sep 30 2000 - 21:00:23 EST