On 11/04/2009 12:36 AM, Bryan Donlan wrote:
I thought hrtimers allow higher-precision wakeups these days? Of course, if you only want to sleep for a few microseconds, the context switch might take longer than you want to sleep...
Also, you may not be in a context where you can schedule. Sometimes drivers need to implement a small delay (to wait for something on the device) while holding a spinlock or while interrupts are disabled. -- All rights reversed. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
