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[Xen-devel] preempt_disable() imbalance in take_machine_down()? [linux-2
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] preempt_disable() imbalance in take_machine_down()? [linux-2.6.18-xen.hg] |
| From: | Laszlo Ersek <lersek@xxxxxxxxxx> |
| Date: | Tue, 05 Apr 2011 15:59:13 +0200 |
| Cc: | Paolo Bonzini <pbonzini@xxxxxxxxxx>, Drew Jones <drjones@xxxxxxxxxx> |
| Delivery-date: | Tue, 05 Apr 2011 07:04:52 -0700 |
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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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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