/* -*- 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 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 LAST_RCVD "last_rcvd"
#define LOV_OBJID "lov_objid"
#define HEALTH_CHECK "health_check"
-#define CAPA_KEYS "capa_keys"
+
/****************** persistent mount data *********************/
#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_UPDATE 0x0040 /* update all related config logs */
#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 */
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[] = {
"ldiskfs",
"smfs",
"reiserfs",
- "ldiskfs2"
+ "ldiskfs2",
};
return mount_type_string[mt];
}
__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
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 */
__u32 lmd_flags; /* lustre mount flags */
int lmd_mgs_failnodes; /* mgs failover node count */
int lmd_exclude_count;
+ int lmd_recovery_time_soft;
+ int lmd_recovery_time_hard;
char *lmd_dev; /* device name */
char *lmd_profile; /* client only */
- char *lmd_sec_mdt; /* sec from mdt (to ost/mdt) */
- char *lmd_sec_cli; /* sec from client (to ost/mdt) */
- uid_t lmd_nllu; /* non-lustre-local-user id */
- gid_t lmd_nllg; /* non-lustre-local-group id */
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)
#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)
-
+/*
+ * 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.
+ */
+#define LR_MAX_CLIENTS max(128 * 1024UL, CFS_PAGE_SIZE * 8)
+/* version recovery */
+#define LR_EPOCH_BITS 32
+#define lr_epoch(a) ((a) >> LR_EPOCH_BITS)
+
/* 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 */
+/* interop flag to show server 20 was used */
+#define OBD_COMPAT_20 0x00000008
#define OBD_ROCOMPAT_LOVOBJID 0x00000001 /* MDS handles LOV_OBJID file */
+#define OBD_ROCOMPAT_CROW 0x00000002 /* OST will CROW create objects */
#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 */
+#define OBD_INCOMPAT_FID 0x00000010 /* FID is enabled */
+#define OBD_INCOMPAT_SOM 0x00000020 /* Size-On-MDS is enabled */
-
+#define LR_EXPIRE_INTERVALS 16 /**< number of intervals to track transno */
/* Data stored per server at the head of the last_rcvd file. In le32 order.
This should be common to filter_internal.h, lustre_mds.h */
struct lr_server_data {
__u8 lsd_peeruuid[40]; /* UUID of MDS associated with this OST */
__u32 lsd_ost_index; /* index number of OST in LOV */
__u32 lsd_mdt_index; /* index number of MDT in LMV */
- __u8 lsd_padding[LR_SERVER_SIZE - 148];
+ __u32 lsd_start_epoch; /* VBR: start epoch from last boot */
+ /** transaction values since lsd_trans_table_time */
+ __u64 lsd_trans_table[LR_EXPIRE_INTERVALS];
+ /** start point of transno table below */
+ __u32 lsd_trans_table_time; /* time of first slot in table above */
+ __u32 lsd_expire_intervals; /* LR_EXPIRE_INTERVALS */
+ __u8 lsd_padding[LR_SERVER_SIZE - 288];
};
/* Data stored per client in the last_rcvd file. In le32 order. */
__u64 lcd_last_close_xid; /* xid for the last transaction */
__u32 lcd_last_close_result; /* result from last RPC */
__u32 lcd_last_close_data; /* per-op data */
- __u8 lcd_padding[LR_CLIENT_SIZE - 88];
+ /* VBR: last versions */
+ __u64 lcd_pre_versions[4];
+ __u32 lcd_last_epoch;
+ /** orphans handling for delayed export rely on that */
+ __u32 lcd_first_epoch;
+ __u8 lcd_padding[LR_CLIENT_SIZE - 128];
};
+/* bug20354: the lcd_uuid for export of clients may be wrong */
+static inline void check_lcd(char *obd_name, int index,
+ struct lsd_client_data *lcd)
+{
+ int length = sizeof(lcd->lcd_uuid);
+ if (strnlen((const char *)lcd->lcd_uuid, length) == length) {
+ lcd->lcd_uuid[length - 1] = '\0';
+
+ LCONSOLE_ERROR("the client UUID (%s) on %s for exports"
+ "stored in last_rcvd(index = %d) is bad!\n",
+ lcd->lcd_uuid, obd_name, index);
+ }
+}
+
+static inline __u64 lsd_last_transno(struct lsd_client_data *lcd)
+{
+ return le64_to_cpu(lcd->lcd_last_transno) >
+ le64_to_cpu(lcd->lcd_last_close_transno) ?
+ le64_to_cpu(lcd->lcd_last_transno) :
+ le64_to_cpu(lcd->lcd_last_close_transno);
+}
#ifdef __KERNEL__
/****************** superblock additional info *********************/
#define LSI_UMOUNT_FORCE 0x00000010
#define LSI_UMOUNT_FAILOVER 0x00000020
-#define s2lsi(sb) ((struct lustre_sb_info *)((sb)->s_fs_info))
-#define s2lsi_nocast(sb) ((sb)->s_fs_info)
-
+#define s2lsi(sb) ((struct lustre_sb_info *)((sb)->s_fs_info))
+#define s2lsi_nocast(sb) ((sb)->s_fs_info)
#define get_profile_name(sb) (s2lsi(sb)->lsi_lmd->lmd_profile)
#endif /* __KERNEL__ */
struct config_llog_instance *cfg);
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);
-int server_put_mount(const char *name, struct vfsmount *mnt);
-int server_put_mount_2(const char *name, struct vfsmount *mnt);
+struct lustre_mount_info *server_find_mount_locked(char *name);
+struct lustre_mount_info *server_get_mount(char *name);
+int server_put_mount(char *name, struct vfsmount *mnt);
int server_register_target(struct super_block *sb);
struct mgs_target_info;
int server_mti_print(char *title, struct mgs_target_info *mti);
/* mgc_request.c */
-int mgc_logname2resid(char *logname, struct ldlm_res_id *res_id);
+int mgc_fsname2resid(char *fsname, struct ldlm_res_id *res_id);
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff