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List:       linux-arm-kernel
Subject:    race condition in do_IRQ
From:       Alexander Hoffmann <Alexander.Hoffmann () sysgo ! de>
Date:       2004-05-05 15:37:05
Message-ID: 40990A21.7000409 () sysgo ! de
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Hi everyone,

the following code snipet can be found in /kernel/irq.c: do_IRQ(...) 
[line 231- 237].
In my opinion this code should be atomic!

...
if (desc->running || desc->disable_depth)
               goto running;
/*
* Mark the IRQ currently in progress.
*/
desc->running = 1;
...

Can anyone please tell me why it isn't ?

best regards,
Alex.


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