Messages in this thread | ![/](/images/icornerl.gif) | | From | Duncan Sands <> | Subject | Re: inconsistent usage of | Date | Tue, 22 Apr 2003 10:40:45 +0200 |
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> void foo() > { > unsigned long local_flags; > spin_lock_irqsave (&qtlock, local_flags); > spin_lock_irqsave (&qtlock, local_flags); > } > > Calling the function foo() works proper in none SMP kernels. I assume, the > spinlocks internaly will be initialized as > recursive semaphore as default. So it is possible to aquire it more than > once by the same thread.
No. If you acquire it twice then you die. The above code is wrong. Where did you find it?
All the best,
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