---
name: "synchronize_rcu_bh"
section: "9"
platform: "linux"
package: "linux-manual-3.16"
version: "3.16.56-1+deb8u1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/synchronize_rcu_bh"
---

# synchronize\_rcu\_bh(9)

wait until an rcu\_bh grace period has elapsed.

## NAME

synchronize\_rcu\_bh - wait until an rcu\_bh grace period has elapsed.

## SYNOPSIS

**void synchronize\_rcu\_bh(***void***);**

## ARGUMENTS

*void*

no arguments

## DESCRIPTION

Control will return to the caller some time after a full rcu\_bh grace period has elapsed, in other words after all currently executing rcu\_bh read-side critical sections have completed. RCU read-side critical sections are delimited by **rcu\_read\_lock\_bh** and **rcu\_read\_unlock\_bh**, and may be nested.

See the description of **synchronize\_sched** for more detailed information on memory ordering guarantees.

## COPYRIGHT