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Commit b8989b76 authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

rcu: Move rcu_ftrace_dump() from rcupdate.h to rcu.h 



The rcu_ftrace_dump() function is used only internally to RCU.  This
commit therefore moves its declaration from include/linux/rcupdate.h
to kernel/rcu/rcu.h.

Reported-by: default avatarIngo Molnar <mingo@kernel.org>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 3d54f798

include/linux/rcupdate.h

+0 −12
Original line number Diff line number Diff line
@@ -883,18 +883,6 @@ static inline void rcu_sysidle_force_exit(void) { } 
#endif /* #else #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */





/*

 * Dump the ftrace buffer, but only one time per callsite per boot.

 */

#define rcu_ftrace_dump(oops_dump_mode) \

do { \

	static atomic_t ___rfd_beenhere = ATOMIC_INIT(0); \

	\

	if (!atomic_read(&___rfd_beenhere) && \

	    !atomic_xchg(&___rfd_beenhere, 1)) \

		ftrace_dump(oops_dump_mode); \

} while (0)



/*

 * Place this after a lock-acquisition primitive to guarantee that

 * an UNLOCK+LOCK pair acts as a full barrier.  This guarantee applies

kernel/rcu/rcu.h

+12 −0
Original line number Diff line number Diff line
@@ -212,6 +212,18 @@ int rcu_jiffies_till_stall_check(void); 
 */

#define TPS(x)  tracepoint_string(x)



/*

 * Dump the ftrace buffer, but only one time per callsite per boot.

 */

#define rcu_ftrace_dump(oops_dump_mode) \

do { \

	static atomic_t ___rfd_beenhere = ATOMIC_INIT(0); \

	\

	if (!atomic_read(&___rfd_beenhere) && \

	    !atomic_xchg(&___rfd_beenhere, 1)) \

		ftrace_dump(oops_dump_mode); \

} while (0)



void rcu_early_boot_tests(void);

void rcu_test_sync_prims(void);