Messages in this thread | | | Date | Wed, 22 Oct 2008 13:05:11 -0600 | From | Matthew Wilcox <> | Subject | Re: [PATCH 1/2] Allow rwlocks to re-enable interrupts |
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On Wed, Oct 22, 2008 at 07:24:31PM +0200, Peter Zijlstra wrote: > > No problem. I could then also use it for _spin_lock_irqsave, if the > > answer to the above question is use CONFIG_LOCK_STAT there as well. > > If you create LOCK_CONTEDED_FLAGS() the whole issue goes away nicely.
Should it also be used for _spin_lock_irq()? I'm puzzled why it's only used for _irqsave().
(should _spin_lock_bh() re-enable BHs while waiting? Is it just not big enough of a deal?)
-- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step."
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