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

William Lee Irwin III
2004-07-28T08:22:09Z

On Tue, 27 Jul 2004 19:21:31 -0700 William Lee Irwin III 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.

On Tue, Jul 27, 2004 at 07:24:54PM -0700, David S. Miller wrote:
> 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.

Thanks; that explains whether it worked by coincidence or design.
No idea why I thought sparc64 did similar.

-- wli