Re: [PATCH 1/2] libsas: remove irq save in sas_ata_qc_issue()

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On 2018-05-30 14:37:50 [+0100], John Garry wrote:
> On 30/05/2018 12:22, Sebastian Andrzej Siewior wrote:
> > Yes, there are the same on vanilla and not on RT. However my point is
> > that the code does this instead:
> > 	local_irq_save();
> > 	spin_unlock();
> 
> Ah, I just noticed that this is spin_unlock().
> 
> So about the "TODO", which you mention "I *assumed* that the intention was
> to audit the code for this
> 
>  	spin_unlock_irq(ap->lock);
> 
> change instead. But if this is or was never intended than I could indeed
> remove the TODO comment."
> 
> As I see, we're dropping the lock but maintaining the irq posture for
> holding that lock (disabled), which seems inefficient.

excellent. So no more objections from your side or is this a complaint I
didn't fully decode?

> John
> 
Sebastian



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