/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * GPL HEADER START * * 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. * * 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 * 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 (c) 2007, 2010, Oracle and/or its affiliates. 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. */ #ifndef _MGS_INTERNAL_H #define _MGS_INTERNAL_H #ifdef __KERNEL__ # include #endif #include #include #include #include #include #include /* mgs_llog.c */ int class_dentry_readdir(struct obd_device *obd, struct dentry *dir, struct vfsmount *inmnt, cfs_list_t *dentry_list); #define MGSSELF_NAME "_mgs" struct mgs_tgt_srpc_conf { struct mgs_tgt_srpc_conf *mtsc_next; char *mtsc_tgt; struct sptlrpc_rule_set mtsc_rset; }; #define INDEX_MAP_SIZE 8192 /* covers indicies to FFFF */ #define FSDB_LOG_EMPTY (0) /* missing client log */ #define FSDB_OLDLOG14 (1) /* log starts in old (1.4) style */ #define FSDB_REVOKING_LOCK (2) /* DLM lock is being revoked */ #define FSDB_MGS_SELF (3) /* for '_mgs', used by sptlrpc */ #define FSDB_OSCNAME18 (4) /* old 1.8 style OSC naming */ #define FSDB_UDESC (5) /* sptlrpc user desc, will be obsolete */ struct fs_db { char fsdb_name[9]; cfs_list_t fsdb_list; /* list of databases */ cfs_semaphore_t fsdb_sem; void *fsdb_ost_index_map; /* bitmap of used indicies */ void *fsdb_mdt_index_map; /* bitmap of used indicies */ int fsdb_mdt_count; /* COMPAT_146 these items must be recorded out of the old client log */ char *fsdb_clilov; /* COMPAT_146 client lov name */ char *fsdb_clilmv; char *fsdb_mdtlov; /* COMPAT_146 mds lov name */ char *fsdb_mdtlmv; char *fsdb_mdc; /* COMPAT_146 mdc name */ /* end COMPAT_146 */ unsigned long fsdb_flags; __u32 fsdb_gen; /* in-memory copy of the srpc rules, guarded by fsdb_sem */ struct sptlrpc_rule_set fsdb_srpc_gen; struct mgs_tgt_srpc_conf *fsdb_srpc_tgt; }; int mgs_init_fsdb_list(struct obd_device *obd); int mgs_cleanup_fsdb_list(struct obd_device *obd); int mgs_find_or_make_fsdb(struct obd_device *obd, char *name, struct fs_db **dbh); int mgs_get_fsdb_srpc_from_llog(struct obd_device *obd, struct fs_db *fsdb); int mgs_check_index(struct obd_device *obd, struct mgs_target_info *mti); int mgs_check_failnid(struct obd_device *obd, struct mgs_target_info *mti); int mgs_write_log_target(struct obd_device *obd, struct mgs_target_info *mti, struct fs_db *fsdb); int mgs_upgrade_sv_14(struct obd_device *obd, struct mgs_target_info *mti, struct fs_db *fsdb); int mgs_erase_log(struct obd_device *obd, char *name); int mgs_erase_logs(struct obd_device *obd, char *fsname); int mgs_setparam(struct obd_device *obd, struct lustre_cfg *lcfg, char *fsname); int mgs_pool_cmd(struct obd_device *obd, enum lcfg_command_type cmd, char *poolname, char *fsname, char *ostname); /* mgs_handler.c */ void mgs_revoke_lock(struct obd_device *obd, struct fs_db *fsdb); /* mgs_fs.c */ int mgs_export_stats_init(struct obd_device *obd, struct obd_export *exp, int reconnect, void *localdata); int mgs_client_free(struct obd_export *exp); int mgs_fs_setup(struct obd_device *obd, struct vfsmount *mnt); int mgs_fs_cleanup(struct obd_device *obddev); #define strsuf(buf, suffix) (strcmp((buf)+strlen(buf)-strlen(suffix), (suffix))) #ifdef LPROCFS int lproc_mgs_setup(struct obd_device *dev); int lproc_mgs_cleanup(struct obd_device *obd); int lproc_mgs_add_live(struct obd_device *obd, struct fs_db *fsdb); int lproc_mgs_del_live(struct obd_device *obd, struct fs_db *fsdb); void lprocfs_mgs_init_vars(struct lprocfs_static_vars *lvars); #else static inline int lproc_mgs_setup(struct obd_device *dev) {return 0;} static inline int lproc_mgs_cleanup(struct obd_device *obd) {return 0;} static inline int lproc_mgs_add_live(struct obd_device *obd, struct fs_db *fsdb) {return 0;} static inline int lproc_mgs_del_live(struct obd_device *obd, struct fs_db *fsdb) {return 0;} static void lprocfs_mgs_init_vars(struct lprocfs_static_vars *lvars) { memset(lvars, 0, sizeof(*lvars)); } #endif /* mgs/lproc_mgs.c */ enum { LPROC_MGS_CONNECT = 0, LPROC_MGS_DISCONNECT, LPROC_MGS_EXCEPTION, LPROC_MGS_TARGET_REG, LPROC_MGS_TARGET_DEL, LPROC_MGS_LAST }; void mgs_counter_incr(struct obd_export *exp, int opcode); void mgs_stats_counter_init(struct lprocfs_stats *stats); #endif /* _MGS_INTERNAL_H */