diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-03-25 11:23:40 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-03-25 11:23:40 -0400 |
| commit | 1166fde6a923c30f4351515b6a9a1efc513e7d00 (patch) | |
| tree | c324a24baa26658651d2e1ecbf2771da569ff38b /fs | |
| parent | 240286725d854331422cb15957f8d9bf2741d4e3 (diff) | |
| download | op-kernel-dev-1166fde6a923c30f4351515b6a9a1efc513e7d00.zip op-kernel-dev-1166fde6a923c30f4351515b6a9a1efc513e7d00.tar.gz | |
SUNRPC: Add barriers to ensure read ordering in rpc_wake_up_task_queue_locked
We need to be careful when testing task->tk_waitqueue in
rpc_wake_up_task_queue_locked, because it can be changed while we
are holding the queue->lock.
By adding appropriate memory barriers, we can ensure that it is safe to
test task->tk_waitqueue for equality if the RPC_TASK_QUEUED bit is set.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions
