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| author | Peter Zijlstra | 2015-06-02 17:26:48 +0200 |
|---|---|---|
| committer | Paul E. McKenney | 2015-07-23 00:27:27 +0200 |
| commit | 155d1d12786386d21732f9bba036343ffa43847d (patch) | |
| tree | 9b50f2482c59f15d222ec348c2d7d166304736f3 /include/linux/rcupdate.h | |
| parent | rcu: Hide RCU_NOCB_CPU behind RCU_EXPERT (diff) | |
| download | kernel-qcow2-linux-155d1d12786386d21732f9bba036343ffa43847d.tar.gz kernel-qcow2-linux-155d1d12786386d21732f9bba036343ffa43847d.tar.xz kernel-qcow2-linux-155d1d12786386d21732f9bba036343ffa43847d.zip | |
rcu: Use WRITE_ONCE in RCU_INIT_POINTER
For the paranoid amongst us GCC would be in its right to use byte stores
to write our NULL value, tell it not to do that.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index def6d45ad61c..c63428c1ed8a 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -995,7 +995,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void) #define RCU_INIT_POINTER(p, v) \ do { \ rcu_dereference_sparse(p, __rcu); \ - p = RCU_INITIALIZER(v); \ + WRITE_ONCE(p, RCU_INITIALIZER(v)); \ } while (0) /** |