From: Frederic Weisbecker <frederic@kernel.org>
To: "Paul E . McKenney" <paulmck@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Phil Auld <pauld@redhat.com>, Alex Belits <abelits@marvell.com>,
Nicolas Saenz Julienne <nsaenz@kernel.org>,
Marco Elver <elver@google.com>,
Xiongfeng Wang <wangxiongfeng2@huawei.com>,
Neeraj Upadhyay <quic_neeraju@quicinc.com>,
Thomas Gleixner <tglx@linutronix.de>,
Nicolas Saenz Julienne <nsaenzju@redhat.com>,
Max Filippov <jcmvbkbc@gmail.com>, Yu Liao <liaoyu15@huawei.com>,
Boqun Feng <boqun.feng@gmail.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
kernel test robot <lkp@intel.com>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
Uladzislau Rezki <uladzislau.rezki@sony.com>,
Joel Fernandes <joel@joelfernandes.org>
Subject: [PATCH 03/20] context_tracking: Rename __context_tracking_enter/exit() to __ct_user_enter/exit()
Date: Tue, 28 Jun 2022 15:16:02 +0200 [thread overview]
Message-ID: <20220628131619.2109651-4-frederic@kernel.org> (raw)
In-Reply-To: <20220628131619.2109651-1-frederic@kernel.org>
The context tracking namespace is going to expand and some new functions
will require even longer names. Start shrinking the context_tracking
prefix to "ct" as is already the case for some existing macros, this
will make the introduction of new functions easier.
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: Uladzislau Rezki <uladzislau.rezki@sony.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Nicolas Saenz Julienne <nsaenz@kernel.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Cc: Yu Liao <liaoyu15@huawei.com>
Cc: Phil Auld <pauld@redhat.com>
Cc: Paul Gortmaker<paul.gortmaker@windriver.com>
Cc: Alex Belits <abelits@marvell.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
Tested-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
---
include/linux/context_tracking.h | 12 ++++++------
kernel/context_tracking.c | 20 ++++++++++----------
2 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index 7a14807c9d1a..773035124bad 100644
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -14,8 +14,8 @@
extern void context_tracking_cpu_set(int cpu);
/* Called with interrupts disabled. */
-extern void __context_tracking_enter(enum ctx_state state);
-extern void __context_tracking_exit(enum ctx_state state);
+extern void __ct_user_enter(enum ctx_state state);
+extern void __ct_user_exit(enum ctx_state state);
extern void context_tracking_enter(enum ctx_state state);
extern void context_tracking_exit(enum ctx_state state);
@@ -38,13 +38,13 @@ static inline void user_exit(void)
static __always_inline void user_enter_irqoff(void)
{
if (context_tracking_enabled())
- __context_tracking_enter(CONTEXT_USER);
+ __ct_user_enter(CONTEXT_USER);
}
static __always_inline void user_exit_irqoff(void)
{
if (context_tracking_enabled())
- __context_tracking_exit(CONTEXT_USER);
+ __ct_user_exit(CONTEXT_USER);
}
static inline enum ctx_state exception_enter(void)
@@ -74,7 +74,7 @@ static inline void exception_exit(enum ctx_state prev_ctx)
static __always_inline bool context_tracking_guest_enter(void)
{
if (context_tracking_enabled())
- __context_tracking_enter(CONTEXT_GUEST);
+ __ct_user_enter(CONTEXT_GUEST);
return context_tracking_enabled_this_cpu();
}
@@ -82,7 +82,7 @@ static __always_inline bool context_tracking_guest_enter(void)
static __always_inline void context_tracking_guest_exit(void)
{
if (context_tracking_enabled())
- __context_tracking_exit(CONTEXT_GUEST);
+ __ct_user_exit(CONTEXT_GUEST);
}
/**
diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index 3082332f6476..88c60ab39fbb 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -51,15 +51,15 @@ static __always_inline void context_tracking_recursion_exit(void)
}
/**
- * context_tracking_enter - Inform the context tracking that the CPU is going
- * enter user or guest space mode.
+ * __ct_user_enter - Inform the context tracking that the CPU is going
+ * to enter user or guest space mode.
*
* This function must be called right before we switch from the kernel
* to user or guest space, when it's guaranteed the remaining kernel
* instructions to execute won't use any RCU read side critical section
* because this function sets RCU in extended quiescent state.
*/
-void noinstr __context_tracking_enter(enum ctx_state state)
+void noinstr __ct_user_enter(enum ctx_state state)
{
/* Kernel threads aren't supposed to go to userspace */
WARN_ON_ONCE(!current->mm);
@@ -101,7 +101,7 @@ void noinstr __context_tracking_enter(enum ctx_state state)
}
context_tracking_recursion_exit();
}
-EXPORT_SYMBOL_GPL(__context_tracking_enter);
+EXPORT_SYMBOL_GPL(__ct_user_enter);
/*
* OBSOLETE:
@@ -128,7 +128,7 @@ void context_tracking_enter(enum ctx_state state)
return;
local_irq_save(flags);
- __context_tracking_enter(state);
+ __ct_user_enter(state);
local_irq_restore(flags);
}
NOKPROBE_SYMBOL(context_tracking_enter);
@@ -149,8 +149,8 @@ void context_tracking_user_enter(void)
NOKPROBE_SYMBOL(context_tracking_user_enter);
/**
- * context_tracking_exit - Inform the context tracking that the CPU is
- * exiting user or guest mode and entering the kernel.
+ * __ct_user_exit - Inform the context tracking that the CPU is
+ * exiting user or guest mode and entering the kernel.
*
* This function must be called after we entered the kernel from user or
* guest space before any use of RCU read side critical section. This
@@ -160,7 +160,7 @@ NOKPROBE_SYMBOL(context_tracking_user_enter);
* This call supports re-entrancy. This way it can be called from any exception
* handler without needing to know if we came from userspace or not.
*/
-void noinstr __context_tracking_exit(enum ctx_state state)
+void noinstr __ct_user_exit(enum ctx_state state)
{
if (!context_tracking_recursion_enter())
return;
@@ -183,7 +183,7 @@ void noinstr __context_tracking_exit(enum ctx_state state)
}
context_tracking_recursion_exit();
}
-EXPORT_SYMBOL_GPL(__context_tracking_exit);
+EXPORT_SYMBOL_GPL(__ct_user_exit);
/*
* OBSOLETE:
@@ -202,7 +202,7 @@ void context_tracking_exit(enum ctx_state state)
return;
local_irq_save(flags);
- __context_tracking_exit(state);
+ __ct_user_exit(state);
local_irq_restore(flags);
}
NOKPROBE_SYMBOL(context_tracking_exit);
--
2.25.1
next prev parent reply other threads:[~2022-06-28 13:17 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-28 13:15 [PATCH 00/20] rcu/context-tracking: Merge RCU eqs-dynticks counter to context tracking v5 Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 01/20] context_tracking: Remove unused context_tracking_in_user() Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 02/20] context_tracking: Add a note about noinstr VS unsafe context tracking functions Frederic Weisbecker
2022-06-28 13:16 ` Frederic Weisbecker [this message]
2022-06-28 13:16 ` [PATCH 04/20] context_tracking: Rename context_tracking_user_enter/exit() to user_enter/exit_callable() Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 05/20] context_tracking: Rename context_tracking_enter/exit() to ct_user_enter/exit() Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 06/20] context_tracking: Rename context_tracking_cpu_set() to ct_cpu_track_user() Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 07/20] context_tracking: Split user tracking Kconfig Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 08/20] context_tracking: Take idle eqs entrypoints over RCU Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 09/20] context_tracking: Take IRQ " Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 10/20] context_tracking: Take NMI " Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 11/20] rcu/context-tracking: Remove rcu_irq_enter/exit() Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 12/20] rcu/context_tracking: Move dynticks counter to context tracking Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 13/20] rcu/context_tracking: Move dynticks_nesting " Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 14/20] rcu/context_tracking: Move dynticks_nmi_nesting " Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 15/20] rcu/context-tracking: Move deferred nocb resched " Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 16/20] rcu/context-tracking: Move RCU-dynticks internal functions to context_tracking Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 17/20] rcu/context-tracking: Remove unused and/or unecessary middle functions Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 18/20] context_tracking: Convert state to atomic_t Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 19/20] MAINTAINERS: Add Paul as context tracking maintainer Frederic Weisbecker
2022-06-28 13:16 ` [PATCH 20/20] context_tracking: Use arch_atomic_read() in __ct_state for KASAN Frederic Weisbecker
2022-06-30 0:10 ` [PATCH 00/20] rcu/context-tracking: Merge RCU eqs-dynticks counter to context tracking v5 Paul E. McKenney
2022-10-11 11:37 ` Xiongfeng Wang
2022-10-11 19:12 ` Frederic Weisbecker
2022-10-12 1:08 ` Xiongfeng Wang
-- strict thread matches above, loose matches on Subject: below --
2022-06-08 14:40 [PATCH 00/20] rcu/context-tracking: Merge RCU eqs-dynticks counter to context tracking v4 Frederic Weisbecker
2022-06-08 14:40 ` [PATCH 03/20] context_tracking: Rename __context_tracking_enter/exit() to __ct_user_enter/exit() Frederic Weisbecker
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