/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2006 Cluster File Systems, Inc.
- * Author: Yury Umanets <umka@clusterfs.com>
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * 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 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 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.
+ * 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).
*
- * 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.
+ * 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/include/lustre_fid.h
+ *
+ * Author: Yury Umanets <umka@clusterfs.com>
*/
#ifndef __LINUX_FID_H
#define __LINUX_FID_H
+/** \defgroup fid fid
+ *
+ * @{
+ */
+
/*
* struct lu_fid
*/
#include <lustre_req_layout.h>
#include <lustre_mdt.h>
-#include <libcfs/list.h>
-#include <libcfs/kp30.h>
+#include <libcfs/libcfs.h>
struct lu_site;
struct lu_context;
/* Whole sequences space range and zero range definitions */
-extern const struct lu_range LUSTRE_SEQ_SPACE_RANGE;
-extern const struct lu_range LUSTRE_SEQ_ZERO_RANGE;
+extern const struct lu_seq_range LUSTRE_SEQ_SPACE_RANGE;
+extern const struct lu_seq_range LUSTRE_SEQ_ZERO_RANGE;
extern const struct lu_fid LUSTRE_BFL_FID;
+extern const struct lu_fid LU_OBF_FID;
+extern const struct lu_fid LU_DOT_LUSTRE_FID;
enum {
/*
* This is how may FIDs may be allocated in one sequence. 16384 for
* now.
*/
- LUSTRE_SEQ_MAX_WIDTH = 0x0000000000004000ULL,
+ LUSTRE_SEQ_MAX_WIDTH = 0x0000000000000400ULL,
/*
* How many sequences may be allocate for meta-sequence (this is 128
* This is how many sequences may be in one super-sequence allocated to
* MDTs.
*/
- LUSTRE_SEQ_SUPER_WIDTH = (LUSTRE_SEQ_META_WIDTH * LUSTRE_SEQ_META_WIDTH)
+ LUSTRE_SEQ_SUPER_WIDTH = ((1<< 30) * LUSTRE_SEQ_META_WIDTH)
};
+/** special fid seq: used for local object create. */
+#define FID_SEQ_LOCAL_FILE (FID_SEQ_START + 1)
+
+/** special fid seq: used for .lustre objects. */
+#define LU_DOT_LUSTRE_SEQ (FID_SEQ_START + 0x02ULL)
+
+/* Note that reserved SEQ numbers below 12 will conflict with ldiskfs
+ * inodes in the IGIF namespace, so these reserved SEQ numbers must be
+ * used sparingly until ldiskfs-based MDT backends and/or IGIF FIDs
+ * have been completely removed. */
+
+/** fid sequence for distributed fs objects */
+#define FID_SEQ_DISTRIBUTED_START (FID_SEQ_START + 0x400ULL)
+
+/** special OID for local objects */
+enum {
+ /** \see osd_oi_index_create */
+ OSD_OI_FID_16_OID = 2UL,
+ /** \see fld_mod_init */
+ FLD_INDEX_OID = 3UL,
+ /** \see fid_mod_init */
+ FID_SEQ_CTL_OID = 4UL,
+ FID_SEQ_SRV_OID = 5UL,
+ /** \see mdd_mod_init */
+ MDD_ROOT_INDEX_OID = 6UL,
+ MDD_ORPHAN_OID = 7UL,
+ MDD_LOV_OBJ_OID = 8UL,
+ MDD_CAPA_KEYS_OID = 9UL,
+ MDD_OBJECTS_OID = 10UL,
+ /** \see mdt_mod_init */
+ MDT_LAST_RECV_OID = 11UL,
+ /** \see osd_mod_init */
+ OSD_REM_OBJ_DIR_OID = 12UL,
+};
+
+static inline void lu_local_obj_fid(struct lu_fid *fid, __u32 oid)
+{
+ fid->f_seq = FID_SEQ_LOCAL_FILE;
+ fid->f_oid = oid;
+ fid->f_ver = 0;
+}
+
enum lu_mgr_type {
LUSTRE_SEQ_SERVER,
LUSTRE_SEQ_CONTROLLER
struct lu_client_seq {
/* Sequence-controller export. */
struct obd_export *lcs_exp;
- struct semaphore lcs_sem;
+ cfs_semaphore_t lcs_sem;
/*
* Range of allowed for allocation sequeces. When using lu_client_seq on
* clients, this contains meta-sequence range. And for servers this
* contains super-sequence range.
*/
- struct lu_range lcs_space;
+ struct lu_seq_range lcs_space;
/* Seq related proc */
cfs_proc_dir_entry_t *lcs_proc_dir;
/* server sequence manager interface */
struct lu_server_seq {
/* Available sequences space */
- struct lu_range lss_space;
+ struct lu_seq_range lss_space;
/*
* Device for server side seq manager needs (saving sequences to backing
struct lu_client_seq *lss_cli;
/* Semaphore for protecting allocation */
- struct semaphore lss_sem;
+ cfs_semaphore_t lss_sem;
/*
* Service uuid, passed from MDT + seq name to form unique seq name to
* LUSTRE_SEQ_SUPER_WIDTH and LUSTRE_SEQ_META_WIDTH.
*/
__u64 lss_width;
+
+ /**
+ * Pointer to site object, required to access site fld.
+ */
+ struct md_site *lss_site;
};
int seq_query(struct com_thread_info *info);
struct dt_device *dev,
const char *prefix,
enum lu_mgr_type type,
+ struct md_site *ls,
const struct lu_env *env);
void seq_server_fini(struct lu_server_seq *seq,
const struct lu_env *env);
int seq_server_alloc_super(struct lu_server_seq *seq,
- struct lu_range *in,
- struct lu_range *out,
+ struct lu_seq_range *in,
+ struct lu_seq_range *out,
const struct lu_env *env);
int seq_server_alloc_meta(struct lu_server_seq *seq,
- struct lu_range *in,
- struct lu_range *out,
+ struct lu_seq_range *in,
+ struct lu_seq_range *out,
const struct lu_env *env);
int seq_server_set_cli(struct lu_server_seq *seq,
struct lu_fid *fid);
/* Fids common stuff */
-int fid_is_local(struct lu_site *site, const struct lu_fid *fid);
-
-void fid_cpu_to_le(struct lu_fid *dst, const struct lu_fid *src);
-void fid_le_to_cpu(struct lu_fid *dst, const struct lu_fid *src);
+int fid_is_local(const struct lu_env *env,
+ struct lu_site *site, const struct lu_fid *fid);
/* fid locking */
#define LUSTRE_SEQ_CTL_NAME "seq_ctl"
/* Range common stuff */
-void range_cpu_to_le(struct lu_range *dst, const struct lu_range *src);
-void range_cpu_to_be(struct lu_range *dst, const struct lu_range *src);
-void range_le_to_cpu(struct lu_range *dst, const struct lu_range *src);
-void range_be_to_cpu(struct lu_range *dst, const struct lu_range *src);
+static inline void range_cpu_to_le(struct lu_seq_range *dst, const struct lu_seq_range *src)
+{
+ dst->lsr_start = cpu_to_le64(src->lsr_start);
+ dst->lsr_end = cpu_to_le64(src->lsr_end);
+ dst->lsr_mdt = cpu_to_le32(src->lsr_mdt);
+}
+
+static inline void range_le_to_cpu(struct lu_seq_range *dst, const struct lu_seq_range *src)
+{
+ dst->lsr_start = le64_to_cpu(src->lsr_start);
+ dst->lsr_end = le64_to_cpu(src->lsr_end);
+ dst->lsr_mdt = le32_to_cpu(src->lsr_mdt);
+}
+
+static inline void range_cpu_to_be(struct lu_seq_range *dst, const struct lu_seq_range *src)
+{
+ dst->lsr_start = cpu_to_be64(src->lsr_start);
+ dst->lsr_end = cpu_to_be64(src->lsr_end);
+ dst->lsr_mdt = cpu_to_be32(src->lsr_mdt);
+}
+
+static inline void range_be_to_cpu(struct lu_seq_range *dst, const struct lu_seq_range *src)
+{
+ dst->lsr_start = be64_to_cpu(src->lsr_start);
+ dst->lsr_end = be64_to_cpu(src->lsr_end);
+ dst->lsr_mdt = be32_to_cpu(src->lsr_mdt);
+}
+
+/** @} fid */
#endif /* __LINUX_FID_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff