/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2006 Cluster File Systems, Inc.
- * Author: Nathan Rutman <nathan@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_disk.h
*
* Lustre disk format definitions.
+ *
+ * Author: Nathan Rutman <nathan@clusterfs.com>
*/
#ifndef _LUSTRE_DISK_H
#define _LUSTRE_DISK_H
+#include <libcfs/libcfs.h>
#include <lnet/types.h>
/****************** on-disk files *********************/
#define MDT_LOGS_DIR "LOGS" /* COMPAT_146 */
#define MOUNT_CONFIGS_DIR "CONFIGS"
-/* Persistent mount data are stored on the disk in this file. */
-#define MOUNT_DATA_FILE MOUNT_CONFIGS_DIR"/mountdata"
-#define LAST_RCVD "last_received"
+#define CONFIGS_FILE "mountdata"
+/** Persistent mount data are stored on the disk in this file. */
+#define MOUNT_DATA_FILE MOUNT_CONFIGS_DIR"/"CONFIGS_FILE
+#define LAST_RCVD "last_rcvd"
#define LOV_OBJID "lov_objid"
#define HEALTH_CHECK "health_check"
#define CAPA_KEYS "capa_keys"
+#define CHANGELOG_CATALOG "changelog_catalog"
+
/****************** persistent mount data *********************/
#define LDD_F_SV_TYPE_MDT 0x0001
#define LDD_F_SV_TYPE_OST 0x0002
#define LDD_F_SV_TYPE_MGS 0x0004
-#define LDD_F_NEED_INDEX 0x0010 /* need an index assignment */
-#define LDD_F_VIRGIN 0x0020 /* never registered */
-#define LDD_F_UPDATE 0x0040 /* update the config logs for this server*/
-#define LDD_F_REWRITE_LDD 0x0080 /* rewrite the LDD */
-#define LDD_F_WRITECONF 0x0100 /* regenerate all logs for this fs */
-#define LDD_F_UPGRADE14 0x0200 /* COMPAT_14 */
-#define LDD_F_PARAM 0x0400 /* process as lctl conf_param */
+#define LDD_F_SV_ALL 0x0008
+/** need an index assignment */
+#define LDD_F_NEED_INDEX 0x0010
+/** never registered */
+#define LDD_F_VIRGIN 0x0020
+/** update the config logs for this server*/
+#define LDD_F_UPDATE 0x0040
+/** rewrite the LDD */
+#define LDD_F_REWRITE_LDD 0x0080
+/** regenerate all logs for this fs */
+#define LDD_F_WRITECONF 0x0100
+/** COMPAT_14 */
+#define LDD_F_UPGRADE14 0x0200
+/** process as lctl conf_param */
+#define LDD_F_PARAM 0x0400
+/** backend fs make use of IAM directory format. */
+#define LDD_F_IAM_DIR 0x0800
enum ldd_mount_type {
- LDD_MT_EXT3 = 0,
+ LDD_MT_EXT3 = 0,
LDD_MT_LDISKFS,
- LDD_MT_SMFS,
+ LDD_MT_SMFS,
LDD_MT_REISERFS,
LDD_MT_LDISKFS2,
LDD_MT_LAST
};
-
+
static inline char *mt_str(enum ldd_mount_type mt)
{
static char *mount_type_string[] = {
__u32 ldd_feature_compat; /* compatible feature flags */
__u32 ldd_feature_rocompat;/* read-only compatible feature flags */
__u32 ldd_feature_incompat;/* incompatible feature flags */
-
+
__u32 ldd_config_ver; /* config rewrite count - not used */
__u32 ldd_flags; /* LDD_SV_TYPE */
- __u32 ldd_svindex; /* server index (0001), must match
+ __u32 ldd_svindex; /* server index (0001), must match
svname */
__u32 ldd_mount_type; /* target fs type LDD_MT_* */
char ldd_fsname[64]; /* filesystem this server is part of */
char ldd_svname[64]; /* this server's name (lustre-mdt0001)*/
__u8 ldd_uuid[40]; /* server UUID (COMPAT_146) */
-
+
/*200*/ char ldd_userdata[1024 - 200]; /* arbitrary user string */
/*1024*/__u8 ldd_padding[4096 - 1024];
/*4096*/char ldd_mount_opts[4096]; /* target fs mount opts */
char *name)
{
if (flags & (LDD_F_SV_TYPE_MDT | LDD_F_SV_TYPE_OST)) {
- sprintf(name, "%.8s-%s%04x", fs,
- (flags & LDD_F_SV_TYPE_MDT) ? "MDT" : "OST",
- index);
+ if (!(flags & LDD_F_SV_ALL))
+ sprintf(name, "%.8s-%s%04x", fs,
+ (flags & LDD_F_SV_TYPE_MDT) ? "MDT" : "OST",
+ index);
} else if (flags & LDD_F_SV_TYPE_MGS) {
sprintf(name, "MGS");
} else {
/****************** mount command *********************/
-/* The lmd is only used internally by Lustre; mount simply passes
+/* The lmd is only used internally by Lustre; mount simply passes
everything as string options */
#define LMD_MAGIC 0xbdacbd03
int lmd_exclude_count;
char *lmd_dev; /* device name */
char *lmd_profile; /* client only */
- char *lmd_opts; /* lustre mount options (as opposed to
+ char *lmd_mgssec; /* sptlrpc flavor to mgs */
+ char *lmd_opts; /* lustre mount options (as opposed to
_device_ mount options) */
__u32 *lmd_exclude; /* array of OSTs to ignore */
};
#define LMD_FLG_SERVER 0x0001 /* Mounting a server */
#define LMD_FLG_CLIENT 0x0002 /* Mounting a client */
#define LMD_FLG_ABORT_RECOV 0x0008 /* Abort recovery */
-#define LMD_FLG_NOSVC 0x0010 /* Only start MGS/MGC for servers,
+#define LMD_FLG_NOSVC 0x0010 /* Only start MGS/MGC for servers,
no other services */
#define LMD_FLG_NOMGS 0x0020 /* Only start target for servers, reusing
existing MGS services */
-#define lmd_is_client(x) ((x)->lmd_flags & LMD_FLG_CLIENT)
+#define lmd_is_client(x) ((x)->lmd_flags & LMD_FLG_CLIENT)
/****************** last_rcvd file *********************/
#if LR_CLIENT_START < LR_SERVER_SIZE
#error "Can't have LR_CLIENT_START < LR_SERVER_SIZE"
#endif
-/* This limit is arbitrary (32k clients on x86), but it is convenient to use
- * 2^n * CFS_PAGE_SIZE * 8 for the number of bits that fit an order-n allocation. */
-#define LR_MAX_CLIENTS (CFS_PAGE_SIZE * 8)
-
-
-/* COMPAT_146 */
-#define OBD_COMPAT_OST 0x00000002 /* this is an OST (temporary) */
-#define OBD_COMPAT_MDT 0x00000004 /* this is an MDT (temporary) */
-/* end COMPAT_146 */
-#define OBD_ROCOMPAT_LOVOBJID 0x00000001 /* MDS handles LOV_OBJID file */
+/*
+ * This limit is arbitrary (131072 clients on x86), but it is convenient to use
+ * 2^n * CFS_PAGE_SIZE * 8 for the number of bits that fit an order-n allocation.
+ * If we need more than 131072 clients (order-2 allocation on x86) then this
+ * should become an array of single-page pointers that are allocated on demand.
+ */
+#if (128 * 1024UL) > (CFS_PAGE_SIZE * 8)
+#define LR_MAX_CLIENTS (128 * 1024UL)
+#else
+#define LR_MAX_CLIENTS (CFS_PAGE_SIZE * 8)
+#endif
-#define OBD_INCOMPAT_GROUPS 0x00000001 /* OST handles group subdirs */
-#define OBD_INCOMPAT_OST 0x00000002 /* this is an OST */
-#define OBD_INCOMPAT_MDT 0x00000004 /* this is an MDT */
-#define OBD_INCOMPAT_COMMON_LR 0x00000008 /* common last_rvcd format */
+/** COMPAT_146: this is an OST (temporary) */
+#define OBD_COMPAT_OST 0x00000002
+/** COMPAT_146: this is an MDT (temporary) */
+#define OBD_COMPAT_MDT 0x00000004
+
+/** MDS handles LOV_OBJID file */
+#define OBD_ROCOMPAT_LOVOBJID 0x00000001
+
+/** OST handles group subdirs */
+#define OBD_INCOMPAT_GROUPS 0x00000001
+/** this is an OST */
+#define OBD_INCOMPAT_OST 0x00000002
+/** this is an MDT */
+#define OBD_INCOMPAT_MDT 0x00000004
+/** common last_rvcd format */
+#define OBD_INCOMPAT_COMMON_LR 0x00000008
+/** FID is enabled */
+#define OBD_INCOMPAT_FID 0x00000010
+/**
+ * lustre disk using iam format to store directory entries
+ */
+#define OBD_INCOMPAT_IAM_DIR 0x00000020
/* Data stored per server at the head of the last_rcvd file. In le32 order.
};
-#ifdef __KERNEL__
/****************** superblock additional info *********************/
+#ifdef __KERNEL__
+
struct ll_sb_info;
struct lustre_sb_info {
int lustre_common_put_super(struct super_block *sb);
-int lustre_process_log(struct super_block *sb, char *logname,
+int lustre_process_log(struct super_block *sb, char *logname,
struct config_llog_instance *cfg);
-int lustre_end_log(struct super_block *sb, char *logname,
+int lustre_end_log(struct super_block *sb, char *logname,
struct config_llog_instance *cfg);
struct lustre_mount_info *server_get_mount(const char *name);
struct lustre_mount_info *server_get_mount_2(const char *name);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff