osd_igif: add igif handling functions.

diff --git a/lustre/osd/Makefile.in b/lustre/osd/Makefile.in
index 3953e3c..f20a829 100644 (file)
--- a/lustre/osd/Makefile.in
+++ b/lustre/osd/Makefile.in
@@ -1,5 +1,5 @@
 MODULES := osd
-osd-objs := osd_handler.o osd_oi.o
+osd-objs := osd_handler.o osd_oi.o osd_igif.o
 
 EXTRA_PRE_CFLAGS := -I@LINUX@/fs -I@LUSTRE@ -I@LUSTRE@/ldiskfs
 

diff --git a/lustre/osd/osd_igif.c b/lustre/osd/osd_igif.c
new file mode 100644 (file)
index 0000000..b15f626
--- /dev/null
+++ b/lustre/osd/osd_igif.c
@@ -0,0 +1,75 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  lustre/osd/osd_igif.c
+ *  igif (compatibility fids) support
+ *
+ *  Copyright (c) 2006 Cluster File Systems, Inc.
+ *   Author: Nikita Danilov <nikita@clusterfs.com>
+ *
+ *   This file is part of the Lustre file system, http://www.lustre.org
+ *   Lustre is a trademark of Cluster File Systems, Inc.
+ *
+ *   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.
+ *
+ *   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.
+ *
+ *   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.
+ */
+
+#ifndef EXPORT_SYMTAB
+# define EXPORT_SYMTAB
+#endif
+#define DEBUG_SUBSYSTEM S_MDS
+
+#include <linux/module.h>
+
+/* LUSTRE_VERSION_CODE */
+#include <lustre_ver.h>
+/* fid stuff */
+#include <lustre/lustre_idl.h>
+
+/* struct osd_inode_id */
+#include "osd_oi.h"
+#include "osd_igif.h"
+
+int lu_fid_is_igif(const struct lu_fid *fid)
+{
+        return fid_seq(fid) == LUSTRE_ROOT_FID_SEQ;
+}
+
+void lu_igif_to_id(const struct lu_fid *fid, struct osd_inode_id *id)
+{
+        LASSERT(lu_fid_is_igif(fid));
+        id->oii_ino = lu_igif_ino(fid);
+        id->oii_gen = lu_igif_gen(fid);
+}
+
+__u32 lu_igif_ino(const struct lu_fid *fid)
+{
+        LASSERT(lu_fid_is_igif(fid));
+        return fid_oid(fid);
+}
+
+__u32 lu_igif_gen(const struct lu_fid *fid)
+{
+        LASSERT(lu_fid_is_igif(fid));
+        return fid_ver(fid);
+}
+
+void lu_igif_build(struct lu_fid *fid, __u32 ino, __u32 gen)
+{
+        fid->f_seq = LUSTRE_ROOT_FID_SEQ;
+        fid->f_oid = ino;
+        fid->f_ver = gen;
+        LASSERT(lu_fid_is_igif(fid));
+}

diff --git a/lustre/osd/osd_igif.h b/lustre/osd/osd_igif.h
new file mode 100644 (file)
index 0000000..d40e630
--- /dev/null
+++ b/lustre/osd/osd_igif.h
@@ -0,0 +1,44 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  lustre/osd/osd_igif.h
+ *  igif (compatibility fids) support
+ *
+ *  Copyright (c) 2006 Cluster File Systems, Inc.
+ *   Author: Nikita Danilov <nikita@clusterfs.com>
+ *
+ *   This file is part of the Lustre file system, http://www.lustre.org
+ *   Lustre is a trademark of Cluster File Systems, Inc.
+ *
+ *   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.
+ *
+ *   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.
+ *
+ *   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.
+ */
+
+#ifndef _OSD_IGIF_H
+#define _OSD_IGIF_H
+
+#if defined(__KERNEL__)
+
+struct lu_fid;
+struct osd_inode_id;
+
+int lu_fid_is_igif(const struct lu_fid *fid);
+void lu_igif_to_id(const struct lu_fid *fid, struct osd_inode_id *id);
+__u32 lu_igif_ino(const struct lu_fid *fid);
+__u32 lu_igif_gen(const struct lu_fid *fid);
+void lu_igif_build(struct lu_fid *fid, __u32 ino, __u32 gen);
+
+#endif /* __KERNEL__ */
+#endif /* _OSD_IGIF_H */