On Wednesday 29 June 2005 14:15, Arjan van de Ven wrote:
> On Wed, 2005-06-29 at 14:02 +0300, Denis Vlasenko wrote:
> > Hi,
> > It struck me that kernel actually can figure out whether it's okay
> > to sleep or not by looking at combination of (flags & __GFP_WAIT)
> > and ((in_atomic() || irqs_disabled()) as it already does this for
> > might_sleep() barfing:
>
> that is not enough.
>
> you could be holding a spinlock for example!
>
> (and no that doesn't set in_atomic() always)
but it sets irqs_disabled() IIRC.
--
vda
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