Re: basic and stupid question on wait_event and wake_up

On Monday 13 August 2007 11:22, Ming Liu wrote:

Dear Momen,
OK. I see now. So you mean condition is only to judge whether a sleeping
process could be waken up or not when wake_up() is executed in other
processes or interrupt handlers. What really wakes the process up is still
the function of wake_up, right? We just execute wake_up() and then check if
condition is true. If yes, the process will leave its sleeping and wake up;
if not, it keep sleeping. Am I right?

Actually, the process will wake up every time you call wake_up(). It will then 
evaluate the condition. If the condition is true, the process will return 
from wait_event. If the condition is false, it will go back to sleep.

Best regards,

Laurent Pinchart