LU-6142 lmv: Fix style issues for lmv_fld.c

[fs/lustre-release.git] / lustre / lmv / lmv_fld.c

diff --git a/lustre/lmv/lmv_fld.c b/lustre/lmv/lmv_fld.c
index 432210f..db45c4b 100644 (file)
--- a/lustre/lmv/lmv_fld.c
+++ b/lustre/lmv/lmv_fld.c
@@ -1,41 +1,44 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
  *
- * Copyright (C) 2006 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ * 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.
  *
- *   Lustre is free 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).
  *
- *   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
- *   GNU General Public License 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.gnu.org/licenses/gpl-2.0.html
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2014, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
  */
 
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
 #define DEBUG_SUBSYSTEM S_LMV
-#ifdef __KERNEL__
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/pagemap.h>
-#include <asm/div64.h>
+#include <linux/math64.h>
 #include <linux/seq_file.h>
-#else
-#include <liblustre.h>
-#endif
 
-#include <lustre/lustre_idl.h>
 #include <obd_support.h>
 #include <lustre_fid.h>
 #include <lustre_lib.h>
@@ -45,28 +48,41 @@
 #include <lprocfs_status.h>
 #include "lmv_internal.h"
 
-int lmv_fld_lookup(struct lmv_obd *lmv,
-                   const struct lu_fid *fid,
-                   mdsno_t *mds)
+int lmv_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid, u32 *mds)
 {
-        int rc;
-        ENTRY;
+       struct obd_device *obd = lmv2obd_dev(lmv);
+       int rc;
+
+       ENTRY;
+
+       /*
+        * FIXME: Currently ZFS still use local seq for ROOT unfortunately, and
+        * this fid_is_local check should be removed once LU-2240 is fixed
+        */
+       if (!fid_is_sane(fid) || !(fid_seq_in_fldb(fid_seq(fid)) ||
+                                  fid_seq_is_local_file(fid_seq(fid)))) {
+               rc = -EINVAL;
+               CERROR("%s: invalid FID "DFID": rc = %d\n", obd->obd_name,
+                      PFID(fid), rc);
+               RETURN(rc);
+       }
+
+       rc = fld_client_lookup(&lmv->lmv_fld, fid_seq(fid), mds,
+                              LU_SEQ_RANGE_MDT, NULL);
+       if (rc) {
+               CERROR("%s: Error while looking for mds number. Seq %#llx: rc = %d\n",
+                      obd->obd_name, fid_seq(fid), rc);
+               RETURN(rc);
+       }
 
-        LASSERT(fid_is_sane(fid));
-        rc = fld_client_lookup(&lmv->lmv_fld, fid_seq(fid), mds, NULL);
-        if (rc) {
-                CERROR("Error while looking for mds number. Seq "LPU64
-                       ", err = %d\n", fid_seq(fid), rc);
-                RETURN(rc);
-        }
-        
-        CDEBUG(D_INFO, "Got mds "LPU64" for sequence: "LPU64"\n",
-               *mds, fid_seq(fid));
+       CDEBUG(D_INODE, "FLD lookup got mds #%x for fid="DFID"\n",
+              *mds, PFID(fid));
 
-        if (*mds >= lmv->desc.ld_tgt_count) {
-                CERROR("Got invalid mds: "LPU64" (max: %d)\n",
-                       *mds, lmv->desc.ld_tgt_count);
-                rc = -EINVAL;
-        }
-        RETURN(rc);
+       if (*mds >= lmv->desc.ld_tgt_count) {
+               rc = -EINVAL;
+               CERROR("%s: FLD lookup got invalid mds #%x (max: %x) for fid="DFID": rc = %d\n",
+                      obd->obd_name, *mds, lmv->desc.ld_tgt_count, PFID(fid),
+                      rc);
+       }
+       RETURN(rc);
 }