--- /dev/null
+/*
+ * 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.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ */
+#ifndef __CLASS_OBD_H
+#define __CLASS_OBD_H
+
+
+#include "obd_support.h"
+#include "lustre_import.h"
+#include "lustre_net.h"
+#include "obd.h"
+#include "lustre_lib.h"
+#include "lustre/lustre_idl.h"
+#include "lprocfs_status.h"
+
+#define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay
+ * and resends for avoid deadlocks */
+#define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update
+ * obd_osfs_age */
+#define OBD_STATFS_PTLRPCD 0x0004 /* requests will be sent via ptlrpcd
+ * instead of a specific set. This
+ * means that we cannot rely on the set
+ * interpret routine to be called.
+ * lov_statfs_fini() must thus be called
+ * by the request interpret routine */
+#define OBD_STATFS_FOR_MDT0 0x0008 /* The statfs is only for retrieving
+ * information from MDT0. */
+#define OBD_FL_PUNCH 0x00000001 /* To indicate it is punch operation */
+
+/* OBD Device Declarations */
+extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
+extern rwlock_t obd_dev_lock;
+
+/* OBD Operations Declarations */
+extern struct obd_device *class_conn2obd(struct lustre_handle *);
+extern struct obd_device *class_exp2obd(struct obd_export *);
+extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
+extern int lustre_get_jobid(char *jobid);
+
+struct lu_device_type;
+
+/* genops.c */
+extern struct list_head obd_types;
+struct obd_export *class_conn2export(struct lustre_handle *);
+int class_register_type(struct obd_ops *, struct md_ops *,
+ struct lprocfs_vars *, const char *nm,
+ struct lu_device_type *ldt);
+int class_unregister_type(const char *nm);
+
+struct obd_device *class_newdev(const char *type_name, const char *name);
+void class_release_dev(struct obd_device *obd);
+
+int class_name2dev(const char *name);
+struct obd_device *class_name2obd(const char *name);
+int class_uuid2dev(struct obd_uuid *uuid);
+struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
+void class_obd_list(void);
+struct obd_device *class_find_client_obd(struct obd_uuid *tgt_uuid,
+ const char *typ_name,
+ struct obd_uuid *grp_uuid);
+struct obd_device *class_devices_in_group(struct obd_uuid *grp_uuid,
+ int *next);
+struct obd_device *class_num2obd(int num);
+int get_devices_count(void);
+
+int class_notify_sptlrpc_conf(const char *fsname, int namelen);
+
+char *obd_export_nid2str(struct obd_export *exp);
+
+int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
+int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
+int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
+
+int obd_zombie_impexp_init(void);
+void obd_zombie_impexp_stop(void);
+void obd_zombie_impexp_cull(void);
+void obd_zombie_barrier(void);
+void obd_exports_barrier(struct obd_device *obd);
+int kuc_len(int payload_len);
+struct kuc_hdr *kuc_ptr(void *p);
+int kuc_ispayload(void *p);
+void *kuc_alloc(int payload_len, int transport, int type);
+void kuc_free(void *p, int payload_len);
+
+struct llog_handle;
+struct llog_rec_hdr;
+typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
+ struct llog_rec_hdr *, void *);
+/* obd_config.c */
+struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
+ const char *new_name);
+int class_process_config(struct lustre_cfg *lcfg);
+int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
+ struct lustre_cfg *lcfg, void *data);
+int class_attach(struct lustre_cfg *lcfg);
+int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
+int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
+int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
+struct obd_device *class_incref(struct obd_device *obd,
+ const char *scope, const void *source);
+void class_decref(struct obd_device *obd,
+ const char *scope, const void *source);
+void dump_exports(struct obd_device *obd, int locks);
+int class_config_llog_handler(const struct lu_env *env,
+ struct llog_handle *handle,
+ struct llog_rec_hdr *rec, void *data);
+int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
+int class_add_uuid(const char *uuid, __u64 nid);
+
+/*obdecho*/
+#if defined (CONFIG_PROC_FS)
+extern void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars);
+#else
+static inline void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars)
+{
+ memset(lvars, 0, sizeof(*lvars));
+}
+#endif
+
+#define CFG_F_START 0x01 /* Set when we start updating from a log */
+#define CFG_F_MARKER 0x02 /* We are within a maker */
+#define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
+#define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
+#define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
+
+/* Passed as data param to class_config_parse_llog */
+struct config_llog_instance {
+ char *cfg_obdname;
+ void *cfg_instance;
+ struct super_block *cfg_sb;
+ struct obd_uuid cfg_uuid;
+ llog_cb_t cfg_callback;
+ int cfg_last_idx; /* for partial llog processing */
+ int cfg_flags;
+};
+int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
+ char *name, struct config_llog_instance *cfg);
+int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
+ char *name, struct config_llog_instance *cfg);
+
+enum {
+ CONFIG_T_CONFIG = 0,
+ CONFIG_T_SPTLRPC = 1,
+ CONFIG_T_RECOVER = 2,
+ CONFIG_T_PARAMS = 3,
+ CONFIG_T_MAX = 4
+};
+
+#define PARAMS_FILENAME "params"
+#define LCTL_UPCALL "lctl"
+
+/* list of active configuration logs */
+struct config_llog_data {
+ struct ldlm_res_id cld_resid;
+ struct config_llog_instance cld_cfg;
+ struct list_head cld_list_chain;
+ atomic_t cld_refcount;
+ struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
+ struct config_llog_data *cld_params; /* common parameters log */
+ struct config_llog_data *cld_recover;/* imperative recover log */
+ struct obd_export *cld_mgcexp;
+ struct mutex cld_lock;
+ int cld_type;
+ unsigned int cld_stopping:1, /* we were told to stop
+ * watching */
+ cld_lostlock:1; /* lock not requeued */
+ char cld_logname[0];
+};
+
+struct lustre_profile {
+ struct list_head lp_list;
+ char *lp_profile;
+ char *lp_dt;
+ char *lp_md;
+};
+
+struct lustre_profile *class_get_profile(const char *prof);
+void class_del_profile(const char *prof);
+void class_del_profiles(void);
+
+#if LUSTRE_TRACKS_LOCK_EXP_REFS
+
+void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
+void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
+extern void (*class_export_dump_hook)(struct obd_export *);
+
+#else
+
+#define __class_export_add_lock_ref(exp, lock) do {} while (0)
+#define __class_export_del_lock_ref(exp, lock) do {} while (0)
+
+#endif
+
+static inline void class_export_rpc_inc(struct obd_export *exp)
+{
+ atomic_inc(&(exp)->exp_rpc_count);
+ CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n",
+ (exp), atomic_read(&(exp)->exp_rpc_count));
+}
+
+static inline void class_export_rpc_dec(struct obd_export *exp)
+{
+ LASSERT_ATOMIC_POS(&exp->exp_rpc_count);
+ atomic_dec(&(exp)->exp_rpc_count);
+ CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n",
+ (exp), atomic_read(&(exp)->exp_rpc_count));
+}
+
+#define class_export_lock_get(exp, lock) \
+({ \
+ atomic_inc(&(exp)->exp_locks_count); \
+ __class_export_add_lock_ref(exp, lock); \
+ CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
+ (exp), atomic_read(&(exp)->exp_locks_count)); \
+ class_export_get(exp); \
+})
+
+#define class_export_lock_put(exp, lock) \
+({ \
+ LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
+ atomic_dec(&(exp)->exp_locks_count); \
+ __class_export_del_lock_ref(exp, lock); \
+ CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
+ (exp), atomic_read(&(exp)->exp_locks_count)); \
+ class_export_put(exp); \
+})
+
+#define class_export_cb_get(exp) \
+({ \
+ atomic_inc(&(exp)->exp_cb_count); \
+ CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
+ (exp), atomic_read(&(exp)->exp_cb_count)); \
+ class_export_get(exp); \
+})
+
+#define class_export_cb_put(exp) \
+({ \
+ LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
+ atomic_dec(&(exp)->exp_cb_count); \
+ CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
+ (exp), atomic_read(&(exp)->exp_cb_count)); \
+ class_export_put(exp); \
+})
+
+/* genops.c */
+struct obd_export *class_export_get(struct obd_export *exp);
+void class_export_put(struct obd_export *exp);
+struct obd_export *class_new_export(struct obd_device *obddev,
+ struct obd_uuid *cluuid);
+void class_unlink_export(struct obd_export *exp);
+
+struct obd_import *class_import_get(struct obd_import *);
+void class_import_put(struct obd_import *);
+struct obd_import *class_new_import(struct obd_device *obd);
+void class_destroy_import(struct obd_import *exp);
+
+struct obd_type *class_search_type(const char *name);
+struct obd_type *class_get_type(const char *name);
+void class_put_type(struct obd_type *type);
+int class_connect(struct lustre_handle *conn, struct obd_device *obd,
+ struct obd_uuid *cluuid);
+int class_disconnect(struct obd_export *exp);
+void class_fail_export(struct obd_export *exp);
+int class_connected_export(struct obd_export *exp);
+void class_disconnect_exports(struct obd_device *obddev);
+int class_manual_cleanup(struct obd_device *obd);
+void class_disconnect_stale_exports(struct obd_device *,
+ int (*test_export)(struct obd_export *));
+static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
+{
+ return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
+ (obd->obd_force ? OBD_OPT_FORCE : 0) |
+ (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
+ 0);
+}
+
+struct inode;
+struct lu_attr;
+struct obdo;
+void obdo_from_la(struct obdo *dst, struct lu_attr *la, __u64 valid);
+void la_from_obdo(struct lu_attr *la, struct obdo *dst, u32 valid);
+void obdo_refresh_inode(struct inode *dst, struct obdo *src, u32 valid);
+void obdo_to_inode(struct inode *dst, struct obdo *src, u32 valid);
+
+void obdo_cpy_md(struct obdo *dst, struct obdo *src, u32 valid);
+void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
+void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
+ unsigned int ia_valid);
+void iattr_from_obdo(struct iattr *attr, struct obdo *oa, u32 valid);
+void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, u32 valid);
+void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
+ unsigned int valid);
+
+void obdo_cpu_to_le(struct obdo *dobdo, struct obdo *sobdo);
+void obdo_le_to_cpu(struct obdo *dobdo, struct obdo *sobdo);
+
+#define OBT(dev) (dev)->obd_type
+#define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
+#define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
+#define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
+
+/* Ensure obd_setup: used for cleanup which must be called
+ while obd is stopping */
+static inline int obd_check_dev(struct obd_device *obd)
+{
+ if (!obd) {
+ CERROR("NULL device\n");
+ return -ENODEV;
+ }
+ return 0;
+}
+
+/* ensure obd_setup and !obd_stopping */
+static inline int obd_check_dev_active(struct obd_device *obd)
+{
+ int rc;
+
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
+ if (!obd->obd_set_up || obd->obd_stopping) {
+ CERROR("Device %d not setup\n", obd->obd_minor);
+ return -ENODEV;
+ }
+ return rc;
+}
+
+#if defined (CONFIG_PROC_FS)
+#define OBD_COUNTER_OFFSET(op) \
+ ((offsetof(struct obd_ops, o_ ## op) - \
+ offsetof(struct obd_ops, o_iocontrol)) \
+ / sizeof(((struct obd_ops *)(0))->o_iocontrol))
+
+#define OBD_COUNTER_INCREMENT(obdx, op) \
+ if ((obdx)->obd_stats != NULL) { \
+ unsigned int coffset; \
+ coffset = (unsigned int)((obdx)->obd_cntr_base) + \
+ OBD_COUNTER_OFFSET(op); \
+ LASSERT(coffset < (obdx)->obd_stats->ls_num); \
+ lprocfs_counter_incr((obdx)->obd_stats, coffset); \
+ }
+
+#define EXP_COUNTER_INCREMENT(export, op) \
+ if ((export)->exp_obd->obd_stats != NULL) { \
+ unsigned int coffset; \
+ coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
+ OBD_COUNTER_OFFSET(op); \
+ LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
+ lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
+ if ((export)->exp_nid_stats != NULL && \
+ (export)->exp_nid_stats->nid_stats != NULL) \
+ lprocfs_counter_incr( \
+ (export)->exp_nid_stats->nid_stats, coffset);\
+ }
+
+#define MD_COUNTER_OFFSET(op) \
+ ((offsetof(struct md_ops, m_ ## op) - \
+ offsetof(struct md_ops, m_getstatus)) \
+ / sizeof(((struct md_ops *)(0))->m_getstatus))
+
+#define MD_COUNTER_INCREMENT(obdx, op) \
+ if ((obd)->md_stats != NULL) { \
+ unsigned int coffset; \
+ coffset = (unsigned int)((obdx)->md_cntr_base) + \
+ MD_COUNTER_OFFSET(op); \
+ LASSERT(coffset < (obdx)->md_stats->ls_num); \
+ lprocfs_counter_incr((obdx)->md_stats, coffset); \
+ }
+
+#define EXP_MD_COUNTER_INCREMENT(export, op) \
+ if ((export)->exp_obd->obd_stats != NULL) { \
+ unsigned int coffset; \
+ coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
+ MD_COUNTER_OFFSET(op); \
+ LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
+ lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
+ if ((export)->exp_md_stats != NULL) \
+ lprocfs_counter_incr( \
+ (export)->exp_md_stats, coffset); \
+ }
+
+#else
+#define OBD_COUNTER_OFFSET(op)
+#define OBD_COUNTER_INCREMENT(obd, op)
+#define EXP_COUNTER_INCREMENT(exp, op)
+#define MD_COUNTER_INCREMENT(obd, op)
+#define EXP_MD_COUNTER_INCREMENT(exp, op)
+#endif
+
+static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat *tmp)
+{
+ /* Always add in ldlm_stats */
+ tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
+ ,LPROCFS_STATS_FLAG_NOPERCPU);
+ if (tmp->nid_ldlm_stats == NULL)
+ return -ENOMEM;
+
+ lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
+
+ return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
+ tmp->nid_ldlm_stats);
+}
+
+#define OBD_CHECK_MD_OP(obd, op, err) \
+do { \
+ if (!OBT(obd) || !MDP((obd), op)) { \
+ if (err) \
+ CERROR("md_" #op ": dev %s/%d no operation\n", \
+ obd->obd_name, obd->obd_minor); \
+ return err; \
+ } \
+} while (0)
+
+#define EXP_CHECK_MD_OP(exp, op) \
+do { \
+ if ((exp) == NULL) { \
+ CERROR("obd_" #op ": NULL export\n"); \
+ return -ENODEV; \
+ } \
+ if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
+ CERROR("obd_" #op ": cleaned up obd\n"); \
+ return -EOPNOTSUPP; \
+ } \
+ if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
+ CERROR("obd_" #op ": dev %s/%d no operation\n", \
+ (exp)->exp_obd->obd_name, \
+ (exp)->exp_obd->obd_minor); \
+ return -EOPNOTSUPP; \
+ } \
+} while (0)
+
+
+#define OBD_CHECK_DT_OP(obd, op, err) \
+do { \
+ if (!OBT(obd) || !OBP((obd), op)) { \
+ if (err) \
+ CERROR("obd_" #op ": dev %d no operation\n", \
+ obd->obd_minor); \
+ return err; \
+ } \
+} while (0)
+
+#define EXP_CHECK_DT_OP(exp, op) \
+do { \
+ if ((exp) == NULL) { \
+ CERROR("obd_" #op ": NULL export\n"); \
+ return -ENODEV; \
+ } \
+ if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
+ CERROR("obd_" #op ": cleaned up obd\n"); \
+ return -EOPNOTSUPP; \
+ } \
+ if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
+ CERROR("obd_" #op ": dev %d no operation\n", \
+ (exp)->exp_obd->obd_minor); \
+ return -EOPNOTSUPP; \
+ } \
+} while (0)
+
+#define CTXT_CHECK_OP(ctxt, op, err) \
+do { \
+ if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
+ if (err) \
+ CERROR("lop_" #op ": dev %d no operation\n", \
+ ctxt->loc_obd->obd_minor); \
+ return err; \
+ } \
+} while (0)
+
+static inline int class_devno_max(void)
+{
+ return MAX_OBD_DEVICES;
+}
+
+static inline int obd_get_info(const struct lu_env *env,
+ struct obd_export *exp, __u32 keylen,
+ void *key, __u32 *vallen, void *val,
+ struct lov_stripe_md *lsm)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, get_info);
+ EXP_COUNTER_INCREMENT(exp, get_info);
+
+ rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
+ lsm);
+ return rc;
+}
+
+static inline int obd_set_info_async(const struct lu_env *env,
+ struct obd_export *exp, u32 keylen,
+ void *key, u32 vallen, void *val,
+ struct ptlrpc_request_set *set)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, set_info_async);
+ EXP_COUNTER_INCREMENT(exp, set_info_async);
+
+ rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
+ val, set);
+ return rc;
+}
+
+/*
+ * obd-lu integration.
+ *
+ * Functionality is being moved into new lu_device-based layering, but some
+ * pieces of configuration process are still based on obd devices.
+ *
+ * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
+ * subsume ->o_setup() methods of obd devices they replace. The same for
+ * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
+ * result, obd_setup() and obd_process_config() branch and call one XOR
+ * another.
+ *
+ * Yet neither lu_device_type_operations::ldto_device_fini() nor
+ * lu_device_type_operations::ldto_device_free() fully implement the
+ * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
+ * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
+ */
+
+#define DECLARE_LU_VARS(ldt, d) \
+ struct lu_device_type *ldt; \
+ struct lu_device *d
+
+static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
+{
+ int rc;
+ DECLARE_LU_VARS(ldt, d);
+
+ ldt = obd->obd_type->typ_lu;
+ if (ldt != NULL) {
+ struct lu_context session_ctx;
+ struct lu_env env;
+ lu_context_init(&session_ctx, LCT_SESSION);
+ session_ctx.lc_thread = NULL;
+ lu_context_enter(&session_ctx);
+
+ rc = lu_env_init(&env, ldt->ldt_ctx_tags);
+ if (rc == 0) {
+ env.le_ses = &session_ctx;
+ d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
+ lu_env_fini(&env);
+ if (!IS_ERR(d)) {
+ obd->obd_lu_dev = d;
+ d->ld_obd = obd;
+ rc = 0;
+ } else
+ rc = PTR_ERR(d);
+ }
+ lu_context_exit(&session_ctx);
+ lu_context_fini(&session_ctx);
+
+ } else {
+ OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, setup);
+ rc = OBP(obd, setup)(obd, cfg);
+ }
+ return rc;
+}
+
+static inline int obd_precleanup(struct obd_device *obd,
+ enum obd_cleanup_stage cleanup_stage)
+{
+ int rc;
+ DECLARE_LU_VARS(ldt, d);
+
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
+ ldt = obd->obd_type->typ_lu;
+ d = obd->obd_lu_dev;
+ if (ldt != NULL && d != NULL) {
+ if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
+ struct lu_env env;
+
+ rc = lu_env_init(&env, ldt->ldt_ctx_tags);
+ if (rc == 0) {
+ ldt->ldt_ops->ldto_device_fini(&env, d);
+ lu_env_fini(&env);
+ }
+ }
+ }
+ OBD_CHECK_DT_OP(obd, precleanup, 0);
+ OBD_COUNTER_INCREMENT(obd, precleanup);
+
+ rc = OBP(obd, precleanup)(obd, cleanup_stage);
+ return rc;
+}
+
+static inline int obd_cleanup(struct obd_device *obd)
+{
+ int rc;
+ DECLARE_LU_VARS(ldt, d);
+
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
+
+ ldt = obd->obd_type->typ_lu;
+ d = obd->obd_lu_dev;
+ if (ldt != NULL && d != NULL) {
+ struct lu_env env;
+
+ rc = lu_env_init(&env, ldt->ldt_ctx_tags);
+ if (rc == 0) {
+ ldt->ldt_ops->ldto_device_free(&env, d);
+ lu_env_fini(&env);
+ obd->obd_lu_dev = NULL;
+ }
+ }
+ OBD_CHECK_DT_OP(obd, cleanup, 0);
+ OBD_COUNTER_INCREMENT(obd, cleanup);
+
+ rc = OBP(obd, cleanup)(obd);
+ return rc;
+}
+
+static inline void obd_cleanup_client_import(struct obd_device *obd)
+{
+ /* If we set up but never connected, the
+ client import will not have been cleaned. */
+ down_write(&obd->u.cli.cl_sem);
+ if (obd->u.cli.cl_import) {
+ struct obd_import *imp;
+ imp = obd->u.cli.cl_import;
+ CDEBUG(D_CONFIG, "%s: client import never connected\n",
+ obd->obd_name);
+ ptlrpc_invalidate_import(imp);
+ if (imp->imp_rq_pool) {
+ ptlrpc_free_rq_pool(imp->imp_rq_pool);
+ imp->imp_rq_pool = NULL;
+ }
+ client_destroy_import(imp);
+ obd->u.cli.cl_import = NULL;
+ }
+ up_write(&obd->u.cli.cl_sem);
+}
+
+static inline int
+obd_process_config(struct obd_device *obd, int datalen, void *data)
+{
+ int rc;
+ DECLARE_LU_VARS(ldt, d);
+
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
+
+ obd->obd_process_conf = 1;
+ ldt = obd->obd_type->typ_lu;
+ d = obd->obd_lu_dev;
+ if (ldt != NULL && d != NULL) {
+ struct lu_env env;
+
+ rc = lu_env_init(&env, ldt->ldt_ctx_tags);
+ if (rc == 0) {
+ rc = d->ld_ops->ldo_process_config(&env, d, data);
+ lu_env_fini(&env);
+ }
+ } else {
+ OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
+ rc = OBP(obd, process_config)(obd, datalen, data);
+ }
+ OBD_COUNTER_INCREMENT(obd, process_config);
+ obd->obd_process_conf = 0;
+
+ return rc;
+}
+
+/* Pack an in-memory MD struct for storage on disk.
+ * Returns +ve size of packed MD (0 for free), or -ve error.
+ *
+ * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
+ * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
+ * If @*disk_tgt == NULL, it will be allocated
+ */
+static inline int obd_packmd(struct obd_export *exp,
+ struct lov_mds_md **disk_tgt,
+ struct lov_stripe_md *mem_src)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, packmd);
+ EXP_COUNTER_INCREMENT(exp, packmd);
+
+ rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
+ return rc;
+}
+
+static inline int obd_size_diskmd(struct obd_export *exp,
+ struct lov_stripe_md *mem_src)
+{
+ return obd_packmd(exp, NULL, mem_src);
+}
+
+static inline int obd_free_diskmd(struct obd_export *exp,
+ struct lov_mds_md **disk_tgt)
+{
+ LASSERT(disk_tgt);
+ LASSERT(*disk_tgt);
+ /*
+ * LU-2590, for caller's convenience, *disk_tgt could be host
+ * endianness, it needs swab to LE if necessary, while just
+ * lov_mds_md header needs it for figuring out how much memory
+ * needs to be freed.
+ */
+ if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
+ (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
+ ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
+ lustre_swab_lov_mds_md(*disk_tgt);
+ return obd_packmd(exp, disk_tgt, NULL);
+}
+
+/* Unpack an MD struct from disk to in-memory format.
+ * Returns +ve size of unpacked MD (0 for free), or -ve error.
+ *
+ * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
+ * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
+ * If @*mem_tgt == NULL, it will be allocated
+ */
+static inline int obd_unpackmd(struct obd_export *exp,
+ struct lov_stripe_md **mem_tgt,
+ struct lov_mds_md *disk_src,
+ int disk_len)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, unpackmd);
+ EXP_COUNTER_INCREMENT(exp, unpackmd);
+
+ rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
+ return rc;
+}
+
+/* helper functions */
+static inline int obd_alloc_memmd(struct obd_export *exp,
+ struct lov_stripe_md **mem_tgt)
+{
+ LASSERT(mem_tgt);
+ LASSERT(*mem_tgt == NULL);
+ return obd_unpackmd(exp, mem_tgt, NULL, 0);
+}
+
+static inline int obd_free_memmd(struct obd_export *exp,
+ struct lov_stripe_md **mem_tgt)
+{
+ int rc;
+
+ LASSERT(mem_tgt);
+ LASSERT(*mem_tgt);
+ rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
+ *mem_tgt = NULL;
+ return rc;
+}
+
+static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
+ struct obdo *obdo, struct lov_stripe_md **ea,
+ struct obd_trans_info *oti)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, create);
+ EXP_COUNTER_INCREMENT(exp, create);
+
+ rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
+ return rc;
+}
+
+static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
+ struct obdo *obdo, struct lov_stripe_md *ea,
+ struct obd_trans_info *oti,
+ struct obd_export *md_exp, void *capa)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, destroy);
+ EXP_COUNTER_INCREMENT(exp, destroy);
+
+ rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
+ return rc;
+}
+
+static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, getattr);
+ EXP_COUNTER_INCREMENT(exp, getattr);
+
+ rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
+ return rc;
+}
+
+static inline int obd_getattr_async(struct obd_export *exp,
+ struct obd_info *oinfo,
+ struct ptlrpc_request_set *set)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, getattr_async);
+ EXP_COUNTER_INCREMENT(exp, getattr_async);
+
+ rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
+ return rc;
+}
+
+static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo,
+ struct obd_trans_info *oti)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, setattr);
+ EXP_COUNTER_INCREMENT(exp, setattr);
+
+ rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
+ return rc;
+}
+
+/* This performs all the requests set init/wait/destroy actions. */
+static inline int obd_setattr_rqset(struct obd_export *exp,
+ struct obd_info *oinfo,
+ struct obd_trans_info *oti)
+{
+ struct ptlrpc_request_set *set = NULL;
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, setattr_async);
+ EXP_COUNTER_INCREMENT(exp, setattr_async);
+
+ set = ptlrpc_prep_set();
+ if (set == NULL)
+ return -ENOMEM;
+
+ rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
+ if (rc == 0)
+ rc = ptlrpc_set_wait(set);
+ ptlrpc_set_destroy(set);
+ return rc;
+}
+
+/* This adds all the requests into @set if @set != NULL, otherwise
+ all requests are sent asynchronously without waiting for response. */
+static inline int obd_setattr_async(struct obd_export *exp,
+ struct obd_info *oinfo,
+ struct obd_trans_info *oti,
+ struct ptlrpc_request_set *set)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, setattr_async);
+ EXP_COUNTER_INCREMENT(exp, setattr_async);
+
+ rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
+ return rc;
+}
+
+static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
+ int priority)
+{
+ struct obd_device *obd = imp->imp_obd;
+ int rc;
+
+ rc = obd_check_dev_active(obd);
+ if (rc)
+ return rc;
+ OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, add_conn);
+
+ rc = OBP(obd, add_conn)(imp, uuid, priority);
+ return rc;
+}
+
+static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
+{
+ struct obd_device *obd = imp->imp_obd;
+ int rc;
+
+ rc = obd_check_dev_active(obd);
+ if (rc)
+ return rc;
+ OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, del_conn);
+
+ rc = OBP(obd, del_conn)(imp, uuid);
+ return rc;
+}
+
+static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
+{
+ struct obd_uuid *uuid;
+
+ OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
+ EXP_COUNTER_INCREMENT(exp, get_uuid);
+
+ uuid = OBP(exp->exp_obd, get_uuid)(exp);
+ return uuid;
+}
+
+/** Create a new /a exp on device /a obd for the uuid /a cluuid
+ * @param exp New export handle
+ * @param d Connect data, supported flags are set, flags also understood
+ * by obd are returned.
+ */
+static inline int obd_connect(const struct lu_env *env,
+ struct obd_export **exp, struct obd_device *obd,
+ struct obd_uuid *cluuid,
+ struct obd_connect_data *data,
+ void *localdata)
+{
+ int rc;
+ __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
+ * check */
+
+ rc = obd_check_dev_active(obd);
+ if (rc)
+ return rc;
+ OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, connect);
+
+ rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
+ /* check that only subset is granted */
+ LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
+ data->ocd_connect_flags));
+ return rc;
+}
+
+static inline int obd_reconnect(const struct lu_env *env,
+ struct obd_export *exp,
+ struct obd_device *obd,
+ struct obd_uuid *cluuid,
+ struct obd_connect_data *d,
+ void *localdata)
+{
+ int rc;
+ __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
+ * check */
+
+ rc = obd_check_dev_active(obd);
+ if (rc)
+ return rc;
+ OBD_CHECK_DT_OP(obd, reconnect, 0);
+ OBD_COUNTER_INCREMENT(obd, reconnect);
+
+ rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
+ /* check that only subset is granted */
+ LASSERT(ergo(d != NULL,
+ (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
+ return rc;
+}
+
+static inline int obd_disconnect(struct obd_export *exp)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, disconnect);
+ EXP_COUNTER_INCREMENT(exp, disconnect);
+
+ rc = OBP(exp->exp_obd, disconnect)(exp);
+ return rc;
+}
+
+static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
+ enum lu_cli_type type)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(obd, fid_init, 0);
+ OBD_COUNTER_INCREMENT(obd, fid_init);
+
+ rc = OBP(obd, fid_init)(obd, exp, type);
+ return rc;
+}
+
+static inline int obd_fid_fini(struct obd_device *obd)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(obd, fid_fini, 0);
+ OBD_COUNTER_INCREMENT(obd, fid_fini);
+
+ rc = OBP(obd, fid_fini)(obd);
+ return rc;
+}
+
+static inline int obd_fid_alloc(struct obd_export *exp,
+ struct lu_fid *fid,
+ struct md_op_data *op_data)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, fid_alloc);
+ EXP_COUNTER_INCREMENT(exp, fid_alloc);
+
+ rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
+ return rc;
+}
+
+static inline int obd_pool_new(struct obd_device *obd, char *poolname)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, pool_new);
+
+ rc = OBP(obd, pool_new)(obd, poolname);
+ return rc;
+}
+
+static inline int obd_pool_del(struct obd_device *obd, char *poolname)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, pool_del);
+
+ rc = OBP(obd, pool_del)(obd, poolname);
+ return rc;
+}
+
+static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, pool_add);
+
+ rc = OBP(obd, pool_add)(obd, poolname, ostname);
+ return rc;
+}
+
+static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, pool_rem);
+
+ rc = OBP(obd, pool_rem)(obd, poolname, ostname);
+ return rc;
+}
+
+static inline void obd_getref(struct obd_device *obd)
+{
+ if (OBT(obd) && OBP(obd, getref)) {
+ OBD_COUNTER_INCREMENT(obd, getref);
+ OBP(obd, getref)(obd);
+ }
+}
+
+static inline void obd_putref(struct obd_device *obd)
+{
+ if (OBT(obd) && OBP(obd, putref)) {
+ OBD_COUNTER_INCREMENT(obd, putref);
+ OBP(obd, putref)(obd);
+ }
+}
+
+static inline int obd_init_export(struct obd_export *exp)
+{
+ int rc = 0;
+
+ if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
+ OBP((exp)->exp_obd, init_export))
+ rc = OBP(exp->exp_obd, init_export)(exp);
+ return rc;
+}
+
+static inline int obd_destroy_export(struct obd_export *exp)
+{
+ if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
+ OBP((exp)->exp_obd, destroy_export))
+ OBP(exp->exp_obd, destroy_export)(exp);
+ return 0;
+}
+
+/* @max_age is the oldest time in jiffies that we accept using a cached data.
+ * If the cache is older than @max_age we will get a new value from the
+ * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
+static inline int obd_statfs_async(struct obd_export *exp,
+ struct obd_info *oinfo,
+ __u64 max_age,
+ struct ptlrpc_request_set *rqset)
+{
+ int rc = 0;
+ struct obd_device *obd;
+
+ if (exp == NULL || exp->exp_obd == NULL)
+ return -EINVAL;
+
+ obd = exp->exp_obd;
+ OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, statfs);
+
+ CDEBUG(D_SUPER, "%s: osfs %p age %llu, max_age %llu\n",
+ obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
+ if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
+ rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
+ } else {
+ CDEBUG(D_SUPER,
+ "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
+ obd->obd_name, &obd->obd_osfs,
+ obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
+ obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
+ spin_lock(&obd->obd_osfs_lock);
+ memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
+ spin_unlock(&obd->obd_osfs_lock);
+ oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
+ if (oinfo->oi_cb_up)
+ oinfo->oi_cb_up(oinfo, 0);
+ }
+ return rc;
+}
+
+static inline int obd_statfs_rqset(struct obd_export *exp,
+ struct obd_statfs *osfs, __u64 max_age,
+ __u32 flags)
+{
+ struct ptlrpc_request_set *set = NULL;
+ struct obd_info oinfo = { { { 0 } } };
+ int rc = 0;
+
+ set = ptlrpc_prep_set();
+ if (set == NULL)
+ return -ENOMEM;
+
+ oinfo.oi_osfs = osfs;
+ oinfo.oi_flags = flags;
+ rc = obd_statfs_async(exp, &oinfo, max_age, set);
+ if (rc == 0)
+ rc = ptlrpc_set_wait(set);
+ ptlrpc_set_destroy(set);
+ return rc;
+}
+
+/* @max_age is the oldest time in jiffies that we accept using a cached data.
+ * If the cache is older than @max_age we will get a new value from the
+ * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
+static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
+ struct obd_statfs *osfs, __u64 max_age,
+ __u32 flags)
+{
+ int rc = 0;
+ struct obd_device *obd = exp->exp_obd;
+
+ if (obd == NULL)
+ return -EINVAL;
+
+ OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
+ OBD_COUNTER_INCREMENT(obd, statfs);
+
+ CDEBUG(D_SUPER, "osfs %llu, max_age %llu\n",
+ obd->obd_osfs_age, max_age);
+ if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
+ rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
+ if (rc == 0) {
+ spin_lock(&obd->obd_osfs_lock);
+ memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
+ obd->obd_osfs_age = cfs_time_current_64();
+ spin_unlock(&obd->obd_osfs_lock);
+ }
+ } else {
+ CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
+ obd->obd_name, &obd->obd_osfs,
+ obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
+ obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
+ spin_lock(&obd->obd_osfs_lock);
+ memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
+ spin_unlock(&obd->obd_osfs_lock);
+ }
+ return rc;
+}
+
+static inline int obd_preprw(const struct lu_env *env, int cmd,
+ struct obd_export *exp, struct obdo *oa,
+ int objcount, struct obd_ioobj *obj,
+ struct niobuf_remote *remote, int *pages,
+ struct niobuf_local *local,
+ struct obd_trans_info *oti,
+ struct lustre_capa *capa)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, preprw);
+ EXP_COUNTER_INCREMENT(exp, preprw);
+
+ rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
+ pages, local, oti, capa);
+ return rc;
+}
+
+static inline int obd_commitrw(const struct lu_env *env, int cmd,
+ struct obd_export *exp, struct obdo *oa,
+ int objcount, struct obd_ioobj *obj,
+ struct niobuf_remote *rnb, int pages,
+ struct niobuf_local *local,
+ struct obd_trans_info *oti, int rc)
+{
+ EXP_CHECK_DT_OP(exp, commitrw);
+ EXP_COUNTER_INCREMENT(exp, commitrw);
+
+ rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
+ rnb, pages, local, oti, rc);
+ return rc;
+}
+
+static inline int obd_adjust_kms(struct obd_export *exp,
+ struct lov_stripe_md *lsm, u64 size,
+ int shrink)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, adjust_kms);
+ EXP_COUNTER_INCREMENT(exp, adjust_kms);
+
+ rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
+ return rc;
+}
+
+static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
+ int len, void *karg, void *uarg)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, iocontrol);
+ EXP_COUNTER_INCREMENT(exp, iocontrol);
+
+ rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
+ return rc;
+}
+
+static inline int obd_find_cbdata(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ ldlm_iterator_t it, void *data)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, find_cbdata);
+ EXP_COUNTER_INCREMENT(exp, find_cbdata);
+
+ rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
+ return rc;
+}
+
+static inline void obd_import_event(struct obd_device *obd,
+ struct obd_import *imp,
+ enum obd_import_event event)
+{
+ if (!obd) {
+ CERROR("NULL device\n");
+ return;
+ }
+ if (obd->obd_set_up && OBP(obd, import_event)) {
+ OBD_COUNTER_INCREMENT(obd, import_event);
+ OBP(obd, import_event)(obd, imp, event);
+ }
+}
+
+static inline int obd_notify(struct obd_device *obd,
+ struct obd_device *watched,
+ enum obd_notify_event ev,
+ void *data)
+{
+ int rc;
+
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
+
+ /* the check for async_recov is a complete hack - I'm hereby
+ overloading the meaning to also mean "this was called from
+ mds_postsetup". I know that my mds is able to handle notifies
+ by this point, and it needs to get them to execute mds_postrecov. */
+ if (!obd->obd_set_up && !obd->obd_async_recov) {
+ CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
+ return -EINVAL;
+ }
+
+ if (!OBP(obd, notify)) {
+ CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
+ return -ENOSYS;
+ }
+
+ OBD_COUNTER_INCREMENT(obd, notify);
+ rc = OBP(obd, notify)(obd, watched, ev, data);
+ return rc;
+}
+
+static inline int obd_notify_observer(struct obd_device *observer,
+ struct obd_device *observed,
+ enum obd_notify_event ev,
+ void *data)
+{
+ int rc1;
+ int rc2;
+
+ struct obd_notify_upcall *onu;
+
+ if (observer->obd_observer)
+ rc1 = obd_notify(observer->obd_observer, observed, ev, data);
+ else
+ rc1 = 0;
+ /*
+ * Also, call non-obd listener, if any
+ */
+ onu = &observer->obd_upcall;
+ if (onu->onu_upcall != NULL)
+ rc2 = onu->onu_upcall(observer, observed, ev,
+ onu->onu_owner, NULL);
+ else
+ rc2 = 0;
+
+ return rc1 ? rc1 : rc2;
+}
+
+static inline int obd_quotacheck(struct obd_export *exp,
+ struct obd_quotactl *oqctl)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, quotacheck);
+ EXP_COUNTER_INCREMENT(exp, quotacheck);
+
+ rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
+ return rc;
+}
+
+static inline int obd_quotactl(struct obd_export *exp,
+ struct obd_quotactl *oqctl)
+{
+ int rc;
+
+ EXP_CHECK_DT_OP(exp, quotactl);
+ EXP_COUNTER_INCREMENT(exp, quotactl);
+
+ rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
+ return rc;
+}
+
+static inline int obd_health_check(const struct lu_env *env,
+ struct obd_device *obd)
+{
+ /* returns: 0 on healthy
+ * >0 on unhealthy + reason code/flag
+ * however the only supported reason == 1 right now
+ * We'll need to define some better reasons
+ * or flags in the future.
+ * <0 on error
+ */
+ int rc;
+
+ /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
+ if (obd == NULL || !OBT(obd)) {
+ CERROR("cleaned up obd\n");
+ return -EOPNOTSUPP;
+ }
+ if (!obd->obd_set_up || obd->obd_stopping)
+ return 0;
+ if (!OBP(obd, health_check))
+ return 0;
+
+ rc = OBP(obd, health_check)(env, obd);
+ return rc;
+}
+
+static inline int obd_register_observer(struct obd_device *obd,
+ struct obd_device *observer)
+{
+ int rc;
+
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
+ down_write(&obd->obd_observer_link_sem);
+ if (obd->obd_observer && observer) {
+ up_write(&obd->obd_observer_link_sem);
+ return -EALREADY;
+ }
+ obd->obd_observer = observer;
+ up_write(&obd->obd_observer_link_sem);
+ return 0;
+}
+
+#if 0
+static inline int obd_register_page_removal_cb(struct obd_export *exp,
+ obd_page_removal_cb_t cb,
+ obd_pin_extent_cb pin_cb)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
+ OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
+
+ rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
+ return rc;
+}
+
+static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
+ obd_page_removal_cb_t cb)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
+ OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
+
+ rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
+ return rc;
+}
+
+static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
+ obd_lock_cancel_cb cb)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
+ OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
+
+ rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
+ return rc;
+}
+
+static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
+ obd_lock_cancel_cb cb)
+{
+ int rc;
+
+ OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
+ OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
+
+ rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
+ return rc;
+}
+#endif
+
+/* metadata helpers */
+static inline int md_getstatus(struct obd_export *exp,
+ struct lu_fid *fid, struct obd_capa **pc)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, getstatus);
+ EXP_MD_COUNTER_INCREMENT(exp, getstatus);
+ rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
+ return rc;
+}
+
+static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
+ struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, getattr);
+ EXP_MD_COUNTER_INCREMENT(exp, getattr);
+ rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
+ return rc;
+}
+
+static inline int md_null_inode(struct obd_export *exp,
+ const struct lu_fid *fid)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, null_inode);
+ EXP_MD_COUNTER_INCREMENT(exp, null_inode);
+ rc = MDP(exp->exp_obd, null_inode)(exp, fid);
+ return rc;
+}
+
+static inline int md_find_cbdata(struct obd_export *exp,
+ const struct lu_fid *fid,
+ ldlm_iterator_t it, void *data)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, find_cbdata);
+ EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
+ rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
+ return rc;
+}
+
+static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
+ struct md_open_data *mod,
+ struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, close);
+ EXP_MD_COUNTER_INCREMENT(exp, close);
+ rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
+ return rc;
+}
+
+static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
+ const void *data, int datalen, int mode, __u32 uid,
+ __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
+ struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, create);
+ EXP_MD_COUNTER_INCREMENT(exp, create);
+ rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
+ uid, gid, cap_effective, rdev, request);
+ return rc;
+}
+
+static inline int md_done_writing(struct obd_export *exp,
+ struct md_op_data *op_data,
+ struct md_open_data *mod)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, done_writing);
+ EXP_MD_COUNTER_INCREMENT(exp, done_writing);
+ rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
+ return rc;
+}
+
+static inline int md_enqueue(struct obd_export *exp,
+ struct ldlm_enqueue_info *einfo,
+ struct lookup_intent *it,
+ struct md_op_data *op_data,
+ struct lustre_handle *lockh,
+ void *lmm, int lmmsize,
+ struct ptlrpc_request **req,
+ __u64 extra_lock_flags)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, enqueue);
+ EXP_MD_COUNTER_INCREMENT(exp, enqueue);
+ rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
+ lmm, lmmsize, req, extra_lock_flags);
+ return rc;
+}
+
+static inline int md_getattr_name(struct obd_export *exp,
+ struct md_op_data *op_data,
+ struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, getattr_name);
+ EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
+ rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
+ return rc;
+}
+
+static inline int md_intent_lock(struct obd_export *exp,
+ struct md_op_data *op_data, void *lmm,
+ int lmmsize, struct lookup_intent *it,
+ int lookup_flags, struct ptlrpc_request **reqp,
+ ldlm_blocking_callback cb_blocking,
+ __u64 extra_lock_flags)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, intent_lock);
+ EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
+ rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
+ it, lookup_flags, reqp, cb_blocking,
+ extra_lock_flags);
+ return rc;
+}
+
+static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
+ struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, link);
+ EXP_MD_COUNTER_INCREMENT(exp, link);
+ rc = MDP(exp->exp_obd, link)(exp, op_data, request);
+ return rc;
+}
+
+static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
+ const char *old, int oldlen, const char *new,
+ int newlen, struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, rename);
+ EXP_MD_COUNTER_INCREMENT(exp, rename);
+ rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
+ newlen, request);
+ return rc;
+}
+
+static inline int md_is_subdir(struct obd_export *exp,
+ const struct lu_fid *pfid,
+ const struct lu_fid *cfid,
+ struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, is_subdir);
+ EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
+ rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
+ return rc;
+}
+
+static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
+ void *ea, int ealen, void *ea2, int ea2len,
+ struct ptlrpc_request **request,
+ struct md_open_data **mod)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, setattr);
+ EXP_MD_COUNTER_INCREMENT(exp, setattr);
+ rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
+ ea2, ea2len, request, mod);
+ return rc;
+}
+
+static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
+ struct obd_capa *oc, struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, sync);
+ EXP_MD_COUNTER_INCREMENT(exp, sync);
+ rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request);
+ return rc;
+}
+
+static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
+ struct page **pages,
+ struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, readpage);
+ EXP_MD_COUNTER_INCREMENT(exp, readpage);
+ rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
+ return rc;
+}
+
+static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
+ struct ptlrpc_request **request)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, unlink);
+ EXP_MD_COUNTER_INCREMENT(exp, unlink);
+ rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
+ return rc;
+}
+
+static inline int md_get_lustre_md(struct obd_export *exp,
+ struct ptlrpc_request *req,
+ struct obd_export *dt_exp,
+ struct obd_export *md_exp,
+ struct lustre_md *md)
+{
+ EXP_CHECK_MD_OP(exp, get_lustre_md);
+ EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
+ return MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md);
+}
+
+static inline int md_free_lustre_md(struct obd_export *exp,
+ struct lustre_md *md)
+{
+ EXP_CHECK_MD_OP(exp, free_lustre_md);
+ EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
+ return MDP(exp->exp_obd, free_lustre_md)(exp, md);
+}
+
+static inline int md_setxattr(struct obd_export *exp,
+ const struct lu_fid *fid, struct obd_capa *oc,
+ u64 valid, const char *name,
+ const char *input, int input_size,
+ int output_size, int flags, __u32 suppgid,
+ struct ptlrpc_request **request)
+{
+ EXP_CHECK_MD_OP(exp, setxattr);
+ EXP_MD_COUNTER_INCREMENT(exp, setxattr);
+ return MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
+ input_size, output_size, flags,
+ suppgid, request);
+}
+
+static inline int md_getxattr(struct obd_export *exp,
+ const struct lu_fid *fid, struct obd_capa *oc,
+ u64 valid, const char *name,
+ const char *input, int input_size,
+ int output_size, int flags,
+ struct ptlrpc_request **request)
+{
+ EXP_CHECK_MD_OP(exp, getxattr);
+ EXP_MD_COUNTER_INCREMENT(exp, getxattr);
+ return MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
+ input_size, output_size, flags,
+ request);
+}
+
+static inline int md_set_open_replay_data(struct obd_export *exp,
+ struct obd_client_handle *och,
+ struct lookup_intent *it)
+{
+ EXP_CHECK_MD_OP(exp, set_open_replay_data);
+ EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
+ return MDP(exp->exp_obd, set_open_replay_data)(exp, och, it);
+}
+
+static inline int md_clear_open_replay_data(struct obd_export *exp,
+ struct obd_client_handle *och)
+{
+ EXP_CHECK_MD_OP(exp, clear_open_replay_data);
+ EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
+ return MDP(exp->exp_obd, clear_open_replay_data)(exp, och);
+}
+
+static inline int md_set_lock_data(struct obd_export *exp,
+ __u64 *lockh, void *data, __u64 *bits)
+{
+ EXP_CHECK_MD_OP(exp, set_lock_data);
+ EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
+ return MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits);
+}
+
+static inline int md_cancel_unused(struct obd_export *exp,
+ const struct lu_fid *fid,
+ ldlm_policy_data_t *policy,
+ ldlm_mode_t mode,
+ ldlm_cancel_flags_t flags,
+ void *opaque)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, cancel_unused);
+ EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
+
+ rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
+ flags, opaque);
+ return rc;
+}
+
+static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
+ const struct lu_fid *fid,
+ ldlm_type_t type,
+ ldlm_policy_data_t *policy,
+ ldlm_mode_t mode,
+ struct lustre_handle *lockh)
+{
+ EXP_CHECK_MD_OP(exp, lock_match);
+ EXP_MD_COUNTER_INCREMENT(exp, lock_match);
+ return MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
+ policy, mode, lockh);
+}
+
+static inline int md_init_ea_size(struct obd_export *exp, int easize,
+ int def_asize, int cookiesize,
+ int def_cookiesize)
+{
+ EXP_CHECK_MD_OP(exp, init_ea_size);
+ EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
+ return MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
+ cookiesize, def_cookiesize);
+}
+
+static inline int md_get_remote_perm(struct obd_export *exp,
+ const struct lu_fid *fid,
+ struct obd_capa *oc, __u32 suppgid,
+ struct ptlrpc_request **request)
+{
+ EXP_CHECK_MD_OP(exp, get_remote_perm);
+ EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
+ return MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
+ request);
+}
+
+static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
+ renew_capa_cb_t cb)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, renew_capa);
+ EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
+ rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
+ return rc;
+}
+
+static inline int md_unpack_capa(struct obd_export *exp,
+ struct ptlrpc_request *req,
+ const struct req_msg_field *field,
+ struct obd_capa **oc)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, unpack_capa);
+ EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
+ rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
+ return rc;
+}
+
+static inline int md_intent_getattr_async(struct obd_export *exp,
+ struct md_enqueue_info *minfo,
+ struct ldlm_enqueue_info *einfo)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, intent_getattr_async);
+ EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
+ rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
+ return rc;
+}
+
+static inline int md_revalidate_lock(struct obd_export *exp,
+ struct lookup_intent *it,
+ struct lu_fid *fid, __u64 *bits)
+{
+ int rc;
+
+ EXP_CHECK_MD_OP(exp, revalidate_lock);
+ EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
+ rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
+ return rc;
+}
+
+
+/* OBD Metadata Support */
+
+extern int obd_init_caches(void);
+extern void obd_cleanup_caches(void);
+
+/* support routines */
+extern struct kmem_cache *obdo_cachep;
+
+#define OBDO_ALLOC(ptr) \
+do { \
+ OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS); \
+} while (0)
+
+#define OBDO_FREE(ptr) \
+do { \
+ OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
+} while (0)
+
+
+static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
+{
+ /* something here */
+}
+
+static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
+{
+ /* something here */
+}
+
+typedef int (*register_lwp_cb)(void *data);
+
+struct lwp_register_item {
+ struct obd_export **lri_exp;
+ register_lwp_cb lri_cb_func;
+ void *lri_cb_data;
+ struct list_head lri_list;
+ char lri_name[MTI_NAME_MAXLEN];
+};
+
+/* I'm as embarrassed about this as you are.
+ *
+ * <shaver> // XXX do not look into _superhack with remaining eye
+ * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
+extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
+
+/* obd_mount.c */
+
+/* sysctl.c */
+extern void obd_sysctl_init (void);
+extern void obd_sysctl_clean (void);
+
+/* uuid.c */
+typedef __u8 class_uuid_t[16];
+void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
+
+/* lustre_peer.c */
+int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
+int class_add_uuid(const char *uuid, __u64 nid);
+int class_del_uuid (const char *uuid);
+int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
+void class_init_uuidlist(void);
+void class_exit_uuidlist(void);
+
+/* class_obd.c */
+extern char obd_jobid_node[];
+extern struct miscdevice obd_psdev;
+extern spinlock_t obd_types_lock;
+
+/* prng.c */
+#define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
+
+#endif /* __LINUX_OBD_CLASS_H */
Code Review / kvmfornfv.git / blobdiff