synchronize_rcu
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## Name

synchronize_rcu — wait until a grace period has elapsed.

## Synopsis

`void synchronize_rcu (` | void`)`;

## Arguments

`void`

  no arguments

## Description

Control will return to the caller some time after a full grace period has elapsed, in other words after all currently executing RCU read-side critical sections have completed. Note, however, that upon return from `synchronize_rcu`, the caller might well be executing concurrently with new RCU read-side critical sections that began while `synchronize_rcu` was waiting. RCU read-side critical sections are delimited by `rcu_read_lock` and `rcu_read_unlock`, and may be nested.

See the description of `synchronize_sched` for more detailed information on memory ordering guarantees.

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