On Fri, 26 Feb 2010 11:38:59 +0100 Rafa Miecki <[email protected]> wrote:
> +#define wait_interruptible_timeout(wq, timeout)
> \
> +({ \
> + long ret = timeout; \
> + \
> + DEFINE_WAIT(wait); \
> + prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); \
> + if (!signal_pending(current)) \
> + ret = schedule_timeout(ret); \
> + finish_wait(&wq, &wait); \
> + \
> + ret; \
> +})
It's often a mistake to use signals in-kernel. Signals are more a
userspace thing and it's better to use the lower-level kernel-specific
messaging tools in-kernel. Bear in mind that userspace can
independently and asynchronously send, accept and block signals.
Can KMS use wait_event_interruptible_timeout()?
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