commit: 92123e068efa310b09e9943ac1cfd10ff6b6d2e4 From: Jeff Layton <jlay...@redhat.com> Date: Mon, 11 Jun 2012 10:03:42 -0400 Subject: rpc_pipefs: allow rpc_purge_list to take a NULL waitq pointer
In the event that we don't have a dentry for a rpc_pipefs pipe, we still need to allow the queue_timeout job to clean out the queue. There's just no waitq to wake up in that event. Cc: sta...@kernel.org Reported-by: Hans de Bruin <jmdebr...@xmsnet.nl> Reported-by: Joerg Platte <jpla...@naasa.net> Signed-off-by: Jeff Layton <jlay...@redhat.com> Signed-off-by: Trond Myklebust <trond.mykleb...@netapp.com> --- net/sunrpc/rpc_pipe.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 0404047..21fde99 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -71,7 +71,9 @@ static void rpc_purge_list(wait_queue_head_t *waitq, struct list_head *head, msg->errno = err; destroy_msg(msg); } while (!list_empty(head)); - wake_up(waitq); + + if (waitq) + wake_up(waitq); } static void @@ -91,11 +93,9 @@ rpc_timeout_upcall_queue(struct work_struct *work) } dentry = dget(pipe->dentry); spin_unlock(&pipe->lock); - if (dentry) { - rpc_purge_list(&RPC_I(dentry->d_inode)->waitq, - &free_list, destroy_msg, -ETIMEDOUT); - dput(dentry); - } + rpc_purge_list(dentry ? &RPC_I(dentry->d_inode)->waitq : NULL, + &free_list, destroy_msg, -ETIMEDOUT); + dput(dentry); } ssize_t rpc_pipe_generic_upcall(struct file *filp, struct rpc_pipe_msg *msg, -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html