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authorAvi Kivity <avi@qumranet.com>2007-05-24 12:23:10 +0300
committerAvi Kivity <avi@qumranet.com>2007-07-16 12:05:49 +0300
commitdb912f963909b3cbc3a059b7528f6a1a1eb6ffae (patch)
tree85d112b2879782fda2b2ca77413ac73361d0d3b0 /kernel/cpuset.c
parente495606dd09d79f9fa496334ac3958f6ff179d82 (diff)
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HOTPLUG: Add CPU_DYING notifier
KVM wants a notification when a cpu is about to die, so it can disable hardware extensions, but at a time when user processes cannot be scheduled on the cpu, so it doesn't try to use virtualization extensions after they have been disabled. This adds a CPU_DYING notification. The notification is called in atomic context on the doomed cpu. Signed-off-by: Avi Kivity <avi@qumranet.com>
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