Re: [PATCH V2 1/1] lib/atomic64 using raw_spin_lock_irq[save|resotre]for atomicity

[Thomas Gleixner]

On Thu, 1 Sep 2011, Shan Hai wrote:

> The spin_lock_irq[save|restore] could break the atomicity of the
> atomic64_* operations in the PREEMPT-RT configuration, because
> the spin_lock_irq[save|restore] themselves are preemptable in the
> PREEMPT-RT, using raw variant of the spin lock could provide the
> atomicity that atomic64_* need.

Good catch. Queued for the next release.
 
Thanks,

	tglx
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