preempt_disable query

Rick Brown <[email protected]>
Newsgroups gmane.linux.newbie,gmane.linux.kernel.kernelnewbies
Message-ID <[email protected]> 
Hi,

1) Is it allowable to sleep (while in process context) after a call to
preempt_disable()?

2) Would a call to preempt_disable() disable preemption only on the
local processor or on all the processors?

TIA,

Rick
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