-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Object Devices Class Driver
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * 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.
*
- * Copyright (C) 2001-2003 Cluster File Systems, Inc.
+ * 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).
*
- * This file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * 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 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.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
- * 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.
+ * Copyright (c) 2012, 2014, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
- * 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.
+ * lustre/obdclass/obdo.c
*
+ * Object Devices Class Driver
* These are the only exported functions, they provide some generic
* infrastructure for managing object devices
*/
#define DEBUG_SUBSYSTEM S_CLASS
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#ifndef __KERNEL__
-#include <liblustre.h>
-#else
+#include <linux/user_namespace.h>
+#ifdef HAVE_UIDGID_HEADER
+# include <linux/uidgid.h>
+#endif
#include <obd_class.h>
#include <lustre/lustre_idl.h>
-#endif
+#include <lustre_obdo.h>
-void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid)
+void obdo_set_parent_fid(struct obdo *dst, const struct lu_fid *parent)
{
-#ifdef __KERNEL__
- CLASSERT(sizeof(struct lustre_handle) +
- sizeof(struct llog_cookie) <= sizeof(src->o_inline));
-
- CDEBUG(D_INODE, "src obdo "LPX64" valid "LPX64", dst obdo "LPX64"\n",
- src->o_id, src->o_valid, dst->o_id);
-#endif
+ dst->o_parent_oid = fid_oid(parent);
+ dst->o_parent_seq = fid_seq(parent);
+ dst->o_parent_ver = fid_ver(parent);
+ dst->o_valid |= OBD_MD_FLGENER | OBD_MD_FLFID;
+}
+EXPORT_SYMBOL(obdo_set_parent_fid);
+
+void obdo_set_o_projid(struct obdo *dst, u32 projid)
+{
+ dst->o_projid = projid;
+ dst->o_valid |= OBD_MD_FLPROJID;
+}
+EXPORT_SYMBOL(obdo_set_o_projid);
+
+/* WARNING: the file systems must take care not to tinker with
+ attributes they don't manage (such as blocks). */
+void obdo_from_inode(struct obdo *dst, struct inode *src, u64 valid)
+{
+ u64 newvalid = 0;
+
+ if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
+ CDEBUG(D_INODE, "valid %#llx, new time %lu/%lu\n",
+ valid, LTIME_S(src->i_mtime),
+ LTIME_S(src->i_ctime));
+
+ if (valid & OBD_MD_FLATIME) {
+ dst->o_atime = LTIME_S(src->i_atime);
+ newvalid |= OBD_MD_FLATIME;
+ }
+ if (valid & OBD_MD_FLMTIME) {
+ dst->o_mtime = LTIME_S(src->i_mtime);
+ newvalid |= OBD_MD_FLMTIME;
+ }
+ if (valid & OBD_MD_FLCTIME) {
+ dst->o_ctime = LTIME_S(src->i_ctime);
+ newvalid |= OBD_MD_FLCTIME;
+ }
+ if (valid & OBD_MD_FLSIZE) {
+ dst->o_size = i_size_read(src);
+ newvalid |= OBD_MD_FLSIZE;
+ }
+ if (valid & OBD_MD_FLBLOCKS) { /* allocation of space (x512 bytes) */
+ dst->o_blocks = src->i_blocks;
+ newvalid |= OBD_MD_FLBLOCKS;
+ }
+ if (valid & OBD_MD_FLBLKSZ) { /* optimal block size */
+ dst->o_blksize = 1U << src->i_blkbits;
+ newvalid |= OBD_MD_FLBLKSZ;
+ }
+ if (valid & OBD_MD_FLTYPE) {
+ dst->o_mode = (dst->o_mode & S_IALLUGO) |
+ (src->i_mode & S_IFMT);
+ newvalid |= OBD_MD_FLTYPE;
+ }
+ if (valid & OBD_MD_FLMODE) {
+ dst->o_mode = (dst->o_mode & S_IFMT) |
+ (src->i_mode & S_IALLUGO);
+ newvalid |= OBD_MD_FLMODE;
+ }
+ if (valid & OBD_MD_FLUID) {
+ dst->o_uid = from_kuid(&init_user_ns, src->i_uid);
+ newvalid |= OBD_MD_FLUID;
+ }
+ if (valid & OBD_MD_FLGID) {
+ dst->o_gid = from_kgid(&init_user_ns, src->i_gid);
+ newvalid |= OBD_MD_FLGID;
+ }
+ if (valid & OBD_MD_FLFLAGS) {
+ dst->o_flags = src->i_flags;
+ newvalid |= OBD_MD_FLFLAGS;
+ }
+ dst->o_valid |= newvalid;
+}
+EXPORT_SYMBOL(obdo_from_inode);
+
+void obdo_cpy_md(struct obdo *dst, const struct obdo *src, u64 valid)
+{
+ CDEBUG(D_INODE, "src obdo "DOSTID" valid %#llx, dst obdo "DOSTID"\n",
+ POSTID(&src->o_oi), src->o_valid, POSTID(&dst->o_oi));
if (valid & OBD_MD_FLATIME)
dst->o_atime = src->o_atime;
if (valid & OBD_MD_FLMTIME)
dst->o_gid = src->o_gid;
if (valid & OBD_MD_FLFLAGS)
dst->o_flags = src->o_flags;
+ if (valid & OBD_MD_FLFID) {
+ dst->o_parent_seq = src->o_parent_seq;
+ dst->o_parent_ver = src->o_parent_ver;
+ }
if (valid & OBD_MD_FLGENER)
- dst->o_generation = src->o_generation;
- if (valid & OBD_MD_FLINLINE)
- memcpy(dst->o_inline, src->o_inline, sizeof(src->o_inline));
+ dst->o_parent_oid = src->o_parent_oid;
+ if (valid & OBD_MD_FLHANDLE)
+ dst->o_handle = src->o_handle;
dst->o_valid |= valid;
}
EXPORT_SYMBOL(obdo_cpy_md);
-void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj)
+void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj)
{
- ioobj->ioo_id = oa->o_id;
- if (oa->o_valid & OBD_MD_FLGROUP)
- ioobj->ioo_gr = oa->o_gr;
- else
- ioobj->ioo_gr = 0;
- ioobj->ioo_type = oa->o_mode;
+ ioobj->ioo_oid = oa->o_oi;
+ if (unlikely(!(oa->o_valid & OBD_MD_FLGROUP)))
+ ostid_set_seq_mdt0(&ioobj->ioo_oid);
+
+ /* Since 2.4 this does not contain o_mode in the low 16 bits.
+ * Instead, it holds (bd_md_max_brw - 1) for multi-bulk BRW RPCs */
+ ioobj->ioo_max_brw = 0;
}
EXPORT_SYMBOL(obdo_to_ioobj);
+
+/**
+ * Create an obdo to send over the wire
+ */
+void lustre_set_wire_obdo(const struct obd_connect_data *ocd,
+ struct obdo *wobdo,
+ const struct obdo *lobdo)
+{
+ *wobdo = *lobdo;
+ if (ocd == NULL)
+ return;
+
+ if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
+ fid_seq_is_echo(ostid_seq(&lobdo->o_oi))) {
+ /* Currently OBD_FL_OSTID will only be used when 2.4 echo
+ * client communicate with pre-2.4 server */
+ wobdo->o_oi.oi.oi_id = fid_oid(&lobdo->o_oi.oi_fid);
+ wobdo->o_oi.oi.oi_seq = fid_seq(&lobdo->o_oi.oi_fid);
+ }
+}
+EXPORT_SYMBOL(lustre_set_wire_obdo);
+
+/**
+ * Create a local obdo from a wire based odbo
+ */
+void lustre_get_wire_obdo(const struct obd_connect_data *ocd,
+ struct obdo *lobdo,
+ const struct obdo *wobdo)
+{
+ *lobdo = *wobdo;
+ if (ocd == NULL)
+ return;
+
+ if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
+ fid_seq_is_echo(wobdo->o_oi.oi.oi_seq)) {
+ /* see above */
+ lobdo->o_oi.oi_fid.f_seq = wobdo->o_oi.oi.oi_seq;
+ lobdo->o_oi.oi_fid.f_oid = wobdo->o_oi.oi.oi_id;
+ lobdo->o_oi.oi_fid.f_ver = 0;
+ }
+}
+EXPORT_SYMBOL(lustre_get_wire_obdo);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff