On a server, a file system object is uniquely identified by a fid, which is

[fs/lustre-release.git] / lustre / mdt / mdt_lproc.c

diff --git a/lustre/mdt/mdt_lproc.c b/lustre/mdt/mdt_lproc.c
index ec7034e..9e45313 100644 (file)
--- a/lustre/mdt/mdt_lproc.c
+++ b/lustre/mdt/mdt_lproc.c
@@ -1,28 +1,42 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- * Copyright (C) 2004-2006 Cluster File Systems, Inc.
- *   Author: Lai Siyao <lsy@clusterfs.com>
- *   Author: Fan Yong <fanyong@clusterfs.com>
+ * GPL HEADER START
  *
- *   This file is part of the Lustre file system, http://www.lustre.org
- *   Lustre is a trademark of Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   You may have signed or agreed to another license before downloading
- *   this software.  If so, you are bound by the terms and conditions
- *   of that agreement, and the following does not apply to you.  See the
- *   LICENSE file included with this distribution for more information.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
  *
- *   If you did not agree to a different license, then this copy of Lustre
- *   is open source software; you can redistribute it and/or modify it
- *   under the terms of version 2 of the GNU General Public License as
- *   published by the Free Software Foundation.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
  *
- *   In either case, Lustre is distributed in the hope that it will be
- *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   license text for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/mdt/mdt_lproc.c
+ *
+ * Author: Lai Siyao <lsy@clusterfs.com>
+ * Author: Fan Yong <fanyong@clusterfs.com>
  */
 
 #ifndef EXPORT_SYMTAB
@@ -178,8 +192,8 @@ static int lprocfs_wr_identity_upcall(struct file *file, const char *buffer,
                 return -EINVAL;
         }
 
-        if (copy_from_user(kernbuf, buffer,
-                           min(count, UC_CACHE_UPCALL_MAXPATH - 1)))
+        if (copy_from_user(kernbuf, buffer, min_t(unsigned long, count,
+                                                  UC_CACHE_UPCALL_MAXPATH - 1)))
                 return -EFAULT;
 
         /* Remove any extraneous bits from the upcall (e.g. linefeeds) */
@@ -452,6 +466,7 @@ static struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
         { "capa_count",                 lprocfs_rd_capa_count,           0, 0 },
         { "site_stats",                 lprocfs_rd_site_stats,           0, 0 },
         { "evict_client",               0, lprocfs_mdt_wr_evict_client,     0 },
+        { "hash_stats",                 lprocfs_obd_rd_hash,    0, 0 },
         { 0 }
 };