linux-kernel - [PATCH rcu 02/20] srcu: Define SRCU_READ_FLAVOR

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Message-Id: <20250224022214.12037-3-boqun.feng@gmail.com>
Date: Sun, 23 Feb 2025 18:21:56 -0800
From: Boqun Feng <boqun.feng@...il.com>
To: rcu@...r.kernel.org
Cc: Lai Jiangshan <jiangshanlai@...il.com>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Josh Triplett <josh@...htriplett.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Frederic Weisbecker <frederic@...nel.org>,
	Neeraj Upadhyay <neeraj.upadhyay@...nel.org>,
	Joel Fernandes <joel@...lfernandes.org>,
	Boqun Feng <boqun.feng@...il.com>,
	Uladzislau Rezki <urezki@...il.com>,
	Zqiang <qiang.zhang1211@...il.com>,
	Davidlohr Bueso <dave@...olabs.net>,
	Shuah Khan <shuah@...nel.org>,
	linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	bpf@...r.kernel.org,
	Neeraj Upadhyay <Neeraj.Upadhyay@....com>,
	Alexei Starovoitov <ast@...nel.org>,
	Andrii Nakryiko <andrii@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Kent Overstreet <kent.overstreet@...ux.dev>
Subject: [PATCH rcu 02/20] srcu: Define SRCU_READ_FLAVOR_ALL in terms of symbols

From: "Paul E. McKenney" <paulmck@...nel.org>

This commit defines SRCU_READ_FLAVOR_ALL in terms of the
SRCU_READ_FLAVOR_* definitions instead of a hexadecimal constant.

Suggested-by: Neeraj Upadhyay <Neeraj.Upadhyay@....com>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
Cc: Alexei Starovoitov <ast@...nel.org>
Cc: Andrii Nakryiko <andrii@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Kent Overstreet <kent.overstreet@...ux.dev>
Cc: <bpf@...r.kernel.org>
Signed-off-by: Boqun Feng <boqun.feng@...il.com>
---
 include/linux/srcu.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index d7ba46e74f58..f6f779b9d9ff 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -47,7 +47,8 @@ int init_srcu_struct(struct srcu_struct *ssp);
 #define SRCU_READ_FLAVOR_NORMAL	0x1		// srcu_read_lock().
 #define SRCU_READ_FLAVOR_NMI	0x2		// srcu_read_lock_nmisafe().
 #define SRCU_READ_FLAVOR_LITE	0x4		// srcu_read_lock_lite().
-#define SRCU_READ_FLAVOR_ALL	0x7		// All of the above.
+#define SRCU_READ_FLAVOR_ALL   (SRCU_READ_FLAVOR_NORMAL | SRCU_READ_FLAVOR_NMI | \
+				SRCU_READ_FLAVOR_LITE) // All of the above.
 
 #ifdef CONFIG_TINY_SRCU
 #include <linux/srcutiny.h>
-- 
2.39.5 (Apple Git-154)