rcu: Separately compile large rcu_segcblist functions

This commit creates a new kernel/rcu/rcu_segcblist.c file that contains non-trivial segcblist functions. Trivial functions remain as static inline functions in kernel/rcu/rcu_segcblist.h Reported-by: Linus Torvalds <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]>
niw · May 2, 2017 · 98059b9 · 98059b9
1 parent 45753c5
commit 98059b9
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Showing 4 changed files with 544 additions and 498 deletions.
diff --git a/init/Kconfig b/init/Kconfig
@@ -573,6 +573,9 @@ config RCU_STALL_COMMON
 	  the tiny variants to disable RCU CPU stall warnings, while
 	  making these warnings mandatory for the tree variants.
 
+config RCU_NEED_SEGCBLIST
+	def_bool ( TREE_RCU || PREEMPT_RCU || TINY_SRCU || TREE_SRCU )
+
 config CONTEXT_TRACKING
        bool
 

diff --git a/kernel/rcu/Makefile b/kernel/rcu/Makefile
@@ -12,3 +12,4 @@ obj-$(CONFIG_TREE_RCU) += tree.o
 obj-$(CONFIG_PREEMPT_RCU) += tree.o
 obj-$(CONFIG_TREE_RCU_TRACE) += tree_trace.o
 obj-$(CONFIG_TINY_RCU) += tiny.o
+obj-$(CONFIG_RCU_NEED_SEGCBLIST) += rcu_segcblist.o