Re: atomic copy_from_user?

[Joe Korty]

On Mon, Dec 22, 2003 at 03:55:06PM -0500, Rob Love wrote:
> On Mon, 2003-12-22 at 13:26, Joe Korty wrote:
> 
> > Shouldn't the dec_prempt_count() in kunmap_atomic() be followed
> > by a preempt_check_resched()???
> 
> Probably.
> 
> Actually, dec_preempt_count() ought to call preempt_check_resched()
> itself.  In the case of !CONFIG_PREEMPT, that call would simply optimize
> away.
> 
> Attached patch is against 2.6.0.

If this is done then preempt_enable_no_resched() and preempt_enable() also
need to be adjusted, as they both call dec_preempt_count().

Joe
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