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由 Jeremy Fitzhardinge 提交于
Impact: bugfix Lazy mmu mode needs preemption disabled, so if we're apply to init_mm (which doesn't require any pte locks), then explicitly disable preemption. (Do it unconditionally after checking we've successfully done the allocation to simplify the error handling.) Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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