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Vikram Narayanan authored
__get_cpu_var is replaced by this_cpu_read. From commit, 1e02ce4c x86: Store a per-cpu shadow copy of CR4 CR4 reads take several cycles. So, store a per-cpu shadow copy of CR4. So, replace direct reads with shadow_read() Signed-off-by: Vikram Narayanan <vikram186@gmail.com>
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