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authorLai Jiangshan <laijs@linux.alibaba.com>2019-10-15 02:55:57 +0000
committerPaul E. McKenney <paulmck@kernel.org>2019-12-09 12:37:51 -0800
commitb3e627d3d5092a87fc9b9e37e341610cfecfbfdc (patch)
treecfd14a3d775bbd4fa72d055d676b8b90b953f26d /kernel/rcu/rcu.h
parent03bd2983d7a9f898fd89f8f7215c3e56732d8ecd (diff)
rcu: Make PREEMPT_RCU be a modifier to TREE_RCU
Currently PREEMPT_RCU and TREE_RCU are mutually exclusive Kconfig options. But PREEMPT_RCU actually specifies a kind of TREE_RCU, namely a preemptible TREE_RCU. This commit therefore makes PREEMPT_RCU be a modifer to the TREE_RCU Kconfig option. This has the benefit of simplifying several of the #if expressions that formerly needed to check both, but now need only check one or the other. Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com> Signed-off-by: Lai Jiangshan <jiangshanlai@gmail.com> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/rcu.h')
-rw-r--r--kernel/rcu/rcu.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index ab504fbc76ca..eabafde2349e 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -454,7 +454,7 @@ enum rcutorture_type {
INVALID_RCU_FLAVOR
};
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
+#if defined(CONFIG_TREE_RCU)
void rcutorture_get_gp_data(enum rcutorture_type test_type, int *flags,
unsigned long *gp_seq);
void do_trace_rcu_torture_read(const char *rcutorturename,