rcu: Expand SRCU ->completed to 64 bits
When rcutorture used only the low-order 32 bits of the grace-period number, it was not a problem for SRCU to use a 32-bit completed field. However, rcutorture now uses the full 64 bits on 64-bit systems, so this commit converts SRCU's ->completed field to unsigned long so as to provide 64 bits on 64-bit systems. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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@ -45,7 +45,7 @@ struct rcu_batch {
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#define RCU_BATCH_INIT(name) { NULL, &(name.head) }
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struct srcu_struct {
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unsigned completed;
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unsigned long completed;
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struct srcu_struct_array __percpu *per_cpu_ref;
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spinlock_t queue_lock; /* protect ->batch_queue, ->running */
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bool running;
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@ -135,7 +135,7 @@ int __srcu_read_lock(struct srcu_struct *sp) __acquires(sp);
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void __srcu_read_unlock(struct srcu_struct *sp, int idx) __releases(sp);
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void synchronize_srcu(struct srcu_struct *sp);
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void synchronize_srcu_expedited(struct srcu_struct *sp);
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long srcu_batches_completed(struct srcu_struct *sp);
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unsigned long srcu_batches_completed(struct srcu_struct *sp);
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void srcu_barrier(struct srcu_struct *sp);
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#ifdef CONFIG_DEBUG_LOCK_ALLOC
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@ -546,7 +546,7 @@ EXPORT_SYMBOL_GPL(srcu_barrier);
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* Report the number of batches, correlated with, but not necessarily
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* precisely the same as, the number of grace periods that have elapsed.
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*/
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long srcu_batches_completed(struct srcu_struct *sp)
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unsigned long srcu_batches_completed(struct srcu_struct *sp)
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{
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return sp->completed;
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}
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