Re: [PATCH][2.6] Allow x86_64 to reenable interrupts on contention

[David S. Miller]

On Tue, 27 Jul 2004 19:21:31 -0700
William Lee Irwin III <wli@xxxxxxxxxxxxxx> wrote:

> and may also have issues with
> architectures (e.g. sparc/sparc64) which need the interrupt disablement
> in e.g. spin_lock_irqsave() to be done in the same call frame as the
> spin_unlock_irqrestore() etc.

This only was a problem on sparc, and it no longer exists at all
in 2.6.x kernels.  It was too much of a pain to keep teaching
people that violated this, and it resulted in some contorted
code as well.

So don't worry about this at all in 2.6.x and later.
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