nfs4: remove BKL from nfs_callback_up and nfs_callback_down

The nfs_callback_mutex is sufficient protection.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index c1e7c8300629..9e713d2d5d74 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -105,7 +105,6 @@ int nfs_callback_up(void)
         struct svc_rqst *rqstp;
         int ret = 0;
 
-        lock_kernel();
         mutex_lock(&nfs_callback_mutex);
         if (nfs_callback_info.users++ || nfs_callback_info.task != NULL)
                 goto out;
@@ -149,7 +148,6 @@ out:
         if (serv)
                 svc_destroy(serv);
         mutex_unlock(&nfs_callback_mutex);
-        unlock_kernel();
         return ret;
 out_err:
         dprintk("Couldn't create callback socket or server thread; err = %d\n",
@@ -163,13 +161,11 @@ out_err:
  */
 void nfs_callback_down(void)
 {
-        lock_kernel();
         mutex_lock(&nfs_callback_mutex);
         nfs_callback_info.users--;
         if (nfs_callback_info.users == 0 && nfs_callback_info.task != NULL)
                 kthread_stop(nfs_callback_info.task);
         mutex_unlock(&nfs_callback_mutex);
-        unlock_kernel();
 }
 
 static int nfs_callback_authenticate(struct svc_rqst *rqstp)