Re: [PATCH] kernel/rcupdate.c microcleanup

From: Linus Torvalds (torvalds@transmeta.com)
Date: Tue Mar 11 2003 - 11:44:26 EST


On Tue, 11 Mar 2003, Andrey Panin wrote:
>
> attached patch (2.5.64) contains small cleanup of RCU code:
> - move smp_processor_id() outside of irq disabled region in call_rcu();

That looks wrong, and is likely to break with preemption, since the caller
could potentially be moved to another CPU between the smp_processor_id()
and the irq disable.

                Linus

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Mar 15 2003 - 22:00:26 EST