Merge branch 'linux-2.6.30.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky...

[firefly-linux-kernel-4.4.55.git] / fs / nfs / super.c

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 6717200923fe31c0b8f733c9544e8d5307b9d2a5..d2d67781c579f34d3990dbe17706e9f98994bfea 100644 (file)
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -683,9 +683,12 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
  */
 static void nfs_umount_begin(struct super_block *sb)
 {
-       struct nfs_server *server = NFS_SB(sb);
+       struct nfs_server *server;
        struct rpc_clnt *rpc;
 
+       lock_kernel();
+
+       server = NFS_SB(sb);
        /* -EIO all pending I/O */
        rpc = server->client_acl;
        if (!IS_ERR(rpc))
@@ -693,6 +696,8 @@ static void nfs_umount_begin(struct super_block *sb)
        rpc = server->client;
        if (!IS_ERR(rpc))
                rpc_killall_tasks(rpc);
+
+       unlock_kernel();
 }
 
 /*
@@ -2106,8 +2111,7 @@ out_err_nosb:
 error_splat_root:
        dput(mntroot);
 error_splat_super:
-       up_write(&s->s_umount);
-       deactivate_super(s);
+       deactivate_locked_super(s);
        goto out;
 }
 
@@ -2203,8 +2207,7 @@ out_err_noserver:
        return error;
 
 error_splat_super:
-       up_write(&s->s_umount);
-       deactivate_super(s);
+       deactivate_locked_super(s);
        dprintk("<-- nfs_xdev_get_sb() = %d [splat]\n", error);
        return error;
 }
@@ -2464,8 +2467,7 @@ out_free:
 error_splat_root:
        dput(mntroot);
 error_splat_super:
-       up_write(&s->s_umount);
-       deactivate_super(s);
+       deactivate_locked_super(s);
        goto out;
 }
 
@@ -2559,8 +2561,7 @@ out_err_noserver:
        return error;
 
 error_splat_super:
-       up_write(&s->s_umount);
-       deactivate_super(s);
+       deactivate_locked_super(s);
        dprintk("<-- nfs4_xdev_get_sb() = %d [splat]\n", error);
        return error;
 }
@@ -2644,8 +2645,7 @@ out_err_noserver:
        return error;
 
 error_splat_super:
-       up_write(&s->s_umount);
-       deactivate_super(s);
+       deactivate_locked_super(s);
        dprintk("<-- nfs4_referral_get_sb() = %d [splat]\n", error);
        return error;
 }