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76504bce4e
Calling smp_processor_id() on: - In CONFIG_DEBUG_PREEMPT=y, if preemption/irq is disabled, then it does not print any warning. - In CONFIG_DEBUG_PREEMPT=n, it doesn't do anything apart from getting __smp_processor_id So with both CONFIG_DEBUG_PREEMPT=y/n, in preemption disabled section it is better to cache the value. It could save a few cycles. Though tiny, repeated in loop could add up to a small value. find_new_ilb is called in interrupt context. So preemption is disabled. So Hoist the this_cpu out of loop Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Mukesh Kumar Chaurasiya (IBM) <mkchauras@gmail.com> Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://patch.msgid.link/20260323193630.640311-2-sshegde@linux.ibm.com