Re: DRM_WAIT_ON changed behaviour.

Mon, 18 Apr 2005 07:28:52 -0700

Alan Cox wrote: 
This in itself is a little bit strange since, if the following occurs:

* Check condition
* if false, go to sleep

and DRM_WAKEUP is called by the interrupt handler in between those two, 
the sleep should never occur, which now it seems to do anyway.
    

Is the current code still using the deprecated sleep_on type functions ?

#define DRM_WAIT_ON( ret, queue, timeout, condition )        \
do {                                \
    long __ret;     \
    __ret = wait_event_interruptible_timeout(queue, condition, timeout); \
    if (__ret == 0) \
        ret = -EBUSY;   \
    else if (__ret == -ERESTARTSYS) \
        ret = -EINTR;   \
} while (0)

^^^^^ New implementation ^^^^^

#define DRM_WAKEUP( queue ) wake_up_interruptible( queue )



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