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* preempt_disable() imbalance in take_machine_down()? [linux-2.6.18-xen.hg]
@ 2011-04-05 13:59 Laszlo Ersek
  2011-04-05 14:18 ` Jan Beulich
  0 siblings, 1 reply; 2+ messages in thread
From: Laszlo Ersek @ 2011-04-05 13:59 UTC (permalink / raw)
  To: xen-devel@lists.xensource.com, Jan Beulich; +Cc: Paolo Bonzini, Drew Jones

Hi,

please excuse the lame question.

Looking at take_machine_down() and __xen_suspend() in 
"drivers/xen/core/machine_reboot.c", assuming "fast_suspend" is false, 
it seems that after the loop in take_machine_down() completes, 
preempt_enable() is never called. Is this intentional? If so, how/why 
does it work?

Thank you very much,
Laszlo Ersek

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2011-04-05 13:59 preempt_disable() imbalance in take_machine_down()? [linux-2.6.18-xen.hg] Laszlo Ersek
2011-04-05 14:18 ` Jan Beulich

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