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| author |   Frederic Weisbecker <fweisbec@gmail.com> | 2012-10-11 01:47:16 +0200 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-10-23 14:54:06 -0700 |
| commit | 4d9a5d4319e22670ec6d6227e12b54f361c46d0f (patch) | |
| tree | d82eb23f01225bf31027e19ce983cd05e9b900bd | |
| parent | Linux 3.7-rc2 (diff) | |
| download | linux-dev-4d9a5d4319e22670ec6d6227e12b54f361c46d0f.tar.xz linux-dev-4d9a5d4319e22670ec6d6227e12b54f361c46d0f.zip | |
rcu: Remove rcu_switch()
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 <fweisbec@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| -rw-r--r-- | arch/um/drivers/mconsole_kern.c | 2 | ||||
| -rw-r--r-- | include/linux/rcupdate.h | 2 | ||||
| -rw-r--r-- | include/linux/sched.h | 8 | ||||
| -rw-r--r-- | 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 79ccfe6c7078..49e3b49e552f 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 7c968e4f929e..5d009def7c0c 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 0dd42a02df2e..432cc5e1bbee 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 2d8927fda712..68414fa4cd2a 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(); |