diff options
| author |   Trond Myklebust <trond.myklebust@primarydata.com> | 2014-09-02 13:58:58 -0400 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2014-09-02 17:53:30 -0400 |
| commit | 66f09ca717e7905e0eebe000b86e27d0274b95ac (patch) | |
| tree | ec63e3a95616c279d9b5ae6014daf198f0a93603 | |
| parent | lockd: Do not start the lockd thread before we've set nlmsvc_rqst->rq_task (diff) | |
| download | linux-dev-66f09ca717e7905e0eebe000b86e27d0274b95ac.tar.xz linux-dev-66f09ca717e7905e0eebe000b86e27d0274b95ac.zip | |
nfs: do not start the callback thread until we set rqstp->rq_task
This fixes an Oopsable race when starting up the callback server.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfs/callback.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index e3dd1cd175d9..b8fb3a4ef649 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -235,7 +235,7 @@ static int nfs_callback_start_svc(int minorversion, struct rpc_xprt *xprt, cb_info->serv = serv; cb_info->rqst = rqstp; - cb_info->task = kthread_run(callback_svc, cb_info->rqst, + cb_info->task = kthread_create(callback_svc, cb_info->rqst, "nfsv4.%u-svc", minorversion); if (IS_ERR(cb_info->task)) { ret = PTR_ERR(cb_info->task); @@ -245,6 +245,7 @@ static int nfs_callback_start_svc(int minorversion, struct rpc_xprt *xprt, return ret; } rqstp->rq_task = cb_info->task; + wake_up_process(cb_info->task); dprintk("nfs_callback_up: service started\n"); return 0; } |