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SubjectRe: [PATCH RFC 3/9] RCU: Preemptible RCU
[ continued here from comment on patch 1]

On Mon, Sep 10, 2007 at 11:34:12AM -0700, Paul E. McKenney wrote:
> /* softirq mask and active fields moved to irq_cpustat_t in
> diff -urpNa -X dontdiff linux-2.6.22-b-fixbarriers/include/linux/rcuclassic.h linux-2.6.22-c-preemptrcu/include/linux/rcuclassic.h
> --- linux-2.6.22-b-fixbarriers/include/linux/rcuclassic.h 2007-08-22 14:42:23.000000000 -0700
> +++ linux-2.6.22-c-preemptrcu/include/linux/rcuclassic.h 2007-08-22 15:21:06.000000000 -0700
> @@ -142,8 +142,6 @@ extern int rcu_needs_cpu(int cpu);
> extern void __rcu_init(void);
> extern void rcu_check_callbacks(int cpu, int user);
> extern void rcu_restart_cpu(int cpu);
> -extern long rcu_batches_completed(void);
> -extern long rcu_batches_completed_bh(void);
>
> #endif /* __KERNEL__ */
> #endif /* __LINUX_RCUCLASSIC_H */
> diff -urpNa -X dontdiff linux-2.6.22-b-fixbarriers/include/linux/rcupdate.h linux-2.6.22-c-preemptrcu/include/linux/rcupdate.h
> --- linux-2.6.22-b-fixbarriers/include/linux/rcupdate.h 2007-07-19 14:02:36.000000000 -0700
> +++ linux-2.6.22-c-preemptrcu/include/linux/rcupdate.h 2007-08-22 15:21:06.000000000 -0700
> @@ -52,7 +52,11 @@ struct rcu_head {
> void (*func)(struct rcu_head *head);
> };
>
> +#ifdef CONFIG_CLASSIC_RCU
> #include <linux/rcuclassic.h>
> +#else /* #ifdef CONFIG_CLASSIC_RCU */
> +#include <linux/rcupreempt.h>
> +#endif /* #else #ifdef CONFIG_CLASSIC_RCU */
>
> #define RCU_HEAD_INIT { .next = NULL, .func = NULL }
> #define RCU_HEAD(head) struct rcu_head head = RCU_HEAD_INIT
> @@ -218,10 +222,13 @@ extern void FASTCALL(call_rcu_bh(struct
> /* Exported common interfaces */
> extern void synchronize_rcu(void);
> extern void rcu_barrier(void);
> +extern long rcu_batches_completed(void);
> +extern long rcu_batches_completed_bh(void);
>

And here we put back rcu_batches_completed and rcu_batches_completed_bh
from rcuclassic.h to rcupdate.h ;-)

-- Steve

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