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rcu: Fix sparse warning for rcu_expedited from kernel/ksysfs.c

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This commit fixes the follwoing warning:

kernel/ksysfs.c:143:5: warning: symbol 'rcu_expedited' was not declared. Should it be static?

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
[ paulmck: Moved the declaration to include/linux/rcupdate.h to avoid
	   including the RCU-internal rcu.h file outside of RCU. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Paul Gortmaker 2014-02-11 16:10:12 -05:00 committed by Paul E. McKenney
parent 8857563b81
commit 7a75474318
3 changed files with 3 additions and 2 deletions
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1
include/linux/rcupdate.h
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@ -46,6 +46,7 @@
#include <linux/compiler.h> #include <linux/compiler.h>
#include <asm/barrier.h> #include <asm/barrier.h>
extern int rcu_expedited; /* for sysctl */
#ifdef CONFIG_RCU_TORTURE_TEST #ifdef CONFIG_RCU_TORTURE_TEST
extern int rcutorture_runnable; /* for sysctl */ extern int rcutorture_runnable; /* for sysctl */
#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */ #endif /* #ifdef CONFIG_RCU_TORTURE_TEST */

2
kernel/ksysfs.c
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@ -19,6 +19,8 @@
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/capability.h> #include <linux/capability.h>
#include <linux/rcupdate.h> /* rcu_expedited */
#define KERNEL_ATTR_RO(_name) \ #define KERNEL_ATTR_RO(_name) \
static struct kobj_attribute _name##_attr = __ATTR_RO(_name) static struct kobj_attribute _name##_attr = __ATTR_RO(_name)

2
kernel/rcu/rcu.h
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@ -116,8 +116,6 @@ static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head)
} }
} }
extern int rcu_expedited;
#ifdef CONFIG_RCU_STALL_COMMON #ifdef CONFIG_RCU_STALL_COMMON
extern int rcu_cpu_stall_suppress; extern int rcu_cpu_stall_suppress;