rcu: Move rcu_head definition to types.h
Take a first step towards untangling Linux kernel header files by placing the struct rcu_head definition into include/linux/types.h and including include/linux/types.h in include/linux/rcupdate.h where struct rcu_head used to be defined. The actual inclusion point for include/linux/types.h is with the rest of the #include directives rather than at the point where struct rcu_head used to be defined, as suggested by Mathieu Desnoyers. Once this is in place, then header files that need only rcu_head can include types.h rather than rcupdate.h. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>wifi-calibration
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b3fbab0571
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990987511c
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@ -33,6 +33,7 @@
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#ifndef __LINUX_RCUPDATE_H
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#ifndef __LINUX_RCUPDATE_H
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#define __LINUX_RCUPDATE_H
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#define __LINUX_RCUPDATE_H
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#include <linux/types.h>
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#include <linux/cache.h>
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#include <linux/cache.h>
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#include <linux/spinlock.h>
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#include <linux/spinlock.h>
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#include <linux/threads.h>
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#include <linux/threads.h>
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@ -64,16 +65,6 @@ static inline void rcutorture_record_progress(unsigned long vernum)
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#define ULONG_CMP_GE(a, b) (ULONG_MAX / 2 >= (a) - (b))
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#define ULONG_CMP_GE(a, b) (ULONG_MAX / 2 >= (a) - (b))
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#define ULONG_CMP_LT(a, b) (ULONG_MAX / 2 < (a) - (b))
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#define ULONG_CMP_LT(a, b) (ULONG_MAX / 2 < (a) - (b))
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/**
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* struct rcu_head - callback structure for use with RCU
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* @next: next update requests in a list
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* @func: actual update function to call after the grace period.
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*/
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struct rcu_head {
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struct rcu_head *next;
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void (*func)(struct rcu_head *head);
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};
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/* Exported common interfaces */
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/* Exported common interfaces */
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extern void call_rcu_sched(struct rcu_head *head,
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extern void call_rcu_sched(struct rcu_head *head,
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void (*func)(struct rcu_head *rcu));
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void (*func)(struct rcu_head *rcu));
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@ -238,6 +238,16 @@ struct ustat {
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char f_fpack[6];
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char f_fpack[6];
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};
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};
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/**
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* struct rcu_head - callback structure for use with RCU
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* @next: next update requests in a list
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* @func: actual update function to call after the grace period.
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*/
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struct rcu_head {
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struct rcu_head *next;
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void (*func)(struct rcu_head *head);
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};
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#endif /* __KERNEL__ */
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#endif /* __KERNEL__ */
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#endif /* __ASSEMBLY__ */
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#endif /* __ASSEMBLY__ */
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#endif /* _LINUX_TYPES_H */
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#endif /* _LINUX_TYPES_H */
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