Paul E. McKenney 1c97be677f list: Use WRITE_ONCE() when adding to lists and hlists ...

Code that does lockless emptiness testing of non-RCU lists is relying
on the list-addition code to write the list head's ->next pointer
atomically.  This commit therefore adds WRITE_ONCE() to list-addition
pointer stores that could affect the head's ->next pointer.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

2015-11-23 10:37:35 -08:00

2.6 KiB

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