From: Zeng Heng <zengheng4@huawei.com>
To: <pbonzini@redhat.com>, <paulmck@kernel.org>,
<frederic@kernel.org>, <quic_neeraju@quicinc.com>,
<josh@joshtriplett.org>, <rostedt@goodmis.org>,
<mathieu.desnoyers@efficios.com>, <jiangshanlai@gmail.com>,
<joel@joelfernandes.org>
Cc: <kvm@vger.kernel.org>, <rcu@vger.kernel.org>, <liwei391@huawei.com>
Subject: [PATCH -next] rcu: remove unused 'cpu' in rcu_virt_note_context_switch
Date: Thu, 15 Sep 2022 16:38:24 +0800 [thread overview]
Message-ID: <20220915083824.766645-1-zengheng4@huawei.com> (raw)
Remove unused function argument, and there is
no logic changes.
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
---
include/linux/kvm_host.h | 2 +-
include/linux/rcutiny.h | 2 +-
include/linux/rcutree.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index f4519d3689e1..9cf0c503daf5 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -417,7 +417,7 @@ 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();
}
}
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 768196a5f39d..9bc025aa79a3 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -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) { }
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 5efb51486e8a..70795386b9ff 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -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);
}
--
2.25.1
next reply other threads:[~2022-09-15 8:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-15 8:38 Zeng Heng [this message]
2022-09-15 8:40 ` [PATCH -next] rcu: remove unused 'cpu' in rcu_virt_note_context_switch Mukesh Ojha
2022-09-21 14:50 ` Paul E. McKenney
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