From: Frederic Weisbecker <[email protected]> It's only there to call rcu_user_hooks_switch(). Let's just call rcu_user_hooks_switch() directly, we don't need this function in the middle.
Signed-off-by: Frederic Weisbecker <[email protected]> Cc: Josh Triplett <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Richard Weinberger <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> --- arch/um/drivers/mconsole_kern.c | 2 +- include/linux/rcupdate.h | 2 ++ include/linux/sched.h | 8 -------- kernel/sched/core.c | 2 +- 4 files changed, 4 insertions(+), 10 deletions(-) diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 79ccfe6..49e3b49 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -648,7 +648,7 @@ static void stack_proc(void *arg) struct task_struct *from = current, *to = arg; to->thread.saved_task = from; - rcu_switch(from, to); + rcu_user_hooks_switch(from, to); switch_to(from, to, from); } diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 7c968e4..5d009de 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -204,6 +204,8 @@ static inline void rcu_user_enter(void) { } static inline void rcu_user_exit(void) { } static inline void rcu_user_enter_after_irq(void) { } static inline void rcu_user_exit_after_irq(void) { } +static inline void rcu_user_hooks_switch(struct task_struct *prev, + struct task_struct *next) { } #endif /* CONFIG_RCU_USER_QS */ extern void exit_rcu(void); diff --git a/include/linux/sched.h b/include/linux/sched.h index 0dd42a0..432cc5e 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1844,14 +1844,6 @@ static inline void rcu_copy_process(struct task_struct *p) #endif -static inline void rcu_switch(struct task_struct *prev, - struct task_struct *next) -{ -#ifdef CONFIG_RCU_USER_QS - rcu_user_hooks_switch(prev, next); -#endif -} - static inline void tsk_restore_flags(struct task_struct *task, unsigned long orig_flags, unsigned long flags) { diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 2d8927f..68414fa 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1887,7 +1887,7 @@ context_switch(struct rq *rq, struct task_struct *prev, #endif /* Here we just switch the register state and the stack. */ - rcu_switch(prev, next); + rcu_user_hooks_switch(prev, next); switch_to(prev, next, prev); barrier(); -- 1.7.8 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
