Commit b5ad0d2e authored by Zeng Heng's avatar Zeng Heng Committed by Paul E. McKenney
Browse files

rcu: Remove unused 'cpu' in rcu_virt_note_context_switch() 



This commit removes the unused function argument 'cpu'.  This does not
change functionality, but might save a cycle or two.

Signed-off-by: default avatarZeng Heng <zengheng4@huawei.com>
Acked-by: default avatarMukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 6343402a

include/linux/kvm_host.h

+1 −1
Original line number Diff line number Diff line
@@ -416,7 +416,7 @@ static __always_inline void guest_context_enter_irqoff(void) 
	 */

	if (!context_tracking_guest_enter()) {

		instrumentation_begin();

		rcu_virt_note_context_switch(smp_processor_id());

		rcu_virt_note_context_switch();

		instrumentation_end();

	}

}

include/linux/rcutiny.h

+1 −1
Original line number Diff line number Diff line
@@ -142,7 +142,7 @@ static inline int rcu_needs_cpu(void) 
 * Take advantage of the fact that there is only one CPU, which

 * allows us to ignore virtualization-based context switches.

 */

static inline void rcu_virt_note_context_switch(int cpu) { }

static inline void rcu_virt_note_context_switch(void) { }

static inline void rcu_cpu_stall_reset(void) { }

static inline int rcu_jiffies_till_stall_check(void) { return 21 * HZ; }

static inline void rcu_irq_exit_check_preempt(void) { }

include/linux/rcutree.h

+1 −1
Original line number Diff line number Diff line
@@ -27,7 +27,7 @@ void rcu_cpu_stall_reset(void); 
 * wrapper around rcu_note_context_switch(), which allows TINY_RCU

 * to save a few bytes. The caller must have disabled interrupts.

 */

static inline void rcu_virt_note_context_switch(int cpu)

static inline void rcu_virt_note_context_switch(void)

{

	rcu_note_context_switch(false);

}