diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-15 20:27:12 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-15 20:27:12 +0400 |
| commit | cd2d95d97c8d1b66467507400c63d707ddb1deba (patch) | |
| tree | 7ad5223ba88110ca6735637c9eef327515e9bb96 /net/sunrpc/sched.c | |
| parent | 88dd75af0e49e1dabef6f7c7f7f4fa0234b9b988 (diff) | |
| parent | 41ef2d5678d83af030125550329b6ae8b74618fa (diff) | |
| download | linux-cd2d95d97c8d1b66467507400c63d707ddb1deba.tar.xz | |
Merge tag 'v3.9-rc7' into regulator-fix-core
Linux 3.9-rc7
Trivial context overlap conflicts:
MAINTAINERS
Diffstat (limited to 'net/sunrpc/sched.c')
| -rw-r--r-- | net/sunrpc/sched.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index fb20f25ddec9..f8529fc8e542 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -180,6 +180,8 @@ static void __rpc_add_wait_queue(struct rpc_wait_queue *queue, list_add_tail(&task->u.tk_wait.list, &queue->tasks[0]); task->tk_waitqueue = queue; queue->qlen++; + /* barrier matches the read in rpc_wake_up_task_queue_locked() */ + smp_wmb(); rpc_set_queued(task); dprintk("RPC: %5u added to queue %p \"%s\"\n", @@ -430,8 +432,11 @@ static void __rpc_do_wake_up_task(struct rpc_wait_queue *queue, struct rpc_task */ static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, struct rpc_task *task) { - if (RPC_IS_QUEUED(task) && task->tk_waitqueue == queue) - __rpc_do_wake_up_task(queue, task); + if (RPC_IS_QUEUED(task)) { + smp_rmb(); + if (task->tk_waitqueue == queue) + __rpc_do_wake_up_task(queue, task); + } } /* |