Messages in this thread | | | Date | Tue, 14 Mar 2000 00:08:42 +0100 (CET) | From | Andrea Arcangeli <> | Subject | Re: new IRQ scalability changes in 2.3.48 |
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On Mon, 13 Mar 2000, Jamie Lokier wrote:
>Note: In many cases, spinlock_irqsave doesn't need to do the >spinlock_depth thing on UP. [..]
It doesn't need that in SMP either.
>[..] However, not all cases: the code in the >lock region might wake up another task.
If you wakeup another task you don't risk to get rescheduled before you drop the lock.
Andrea
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