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);
int lustre_get_jobid(char *jobid, size_t len);
void lustre_jobid_clear(const char *jobid);
void jobid_cache_fini(void);
int jobid_cache_init(void);
+char *jobid_current(void);
+int jobid_set_current(char *jobid);
struct lu_device_type;
/* genops.c */
struct obd_export *class_conn2export(struct lustre_handle *);
-struct kobject *class_setup_tunables(const char *name);
-int class_register_type(struct obd_ops *, struct md_ops *, bool enable_proc,
+#ifdef HAVE_SERVER_SUPPORT
+struct obd_type *class_add_symlinks(const char *name, bool enable_proc);
+#endif
+int class_register_type(const struct obd_ops *dt_ops,
+ const struct md_ops *md_ops, bool enable_proc,
struct lprocfs_vars *module_vars,
const char *nm, struct lu_device_type *ldt);
int class_unregister_type(const char *nm);
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);
+struct obd_device *class_find_client_obd(struct obd_uuid *tgt_uuid,
+ const char *type_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);
int obd_set_max_mod_rpcs_in_flight(struct client_obd *cli, __u16 max);
int obd_mod_rpc_stats_seq_show(struct client_obd *cli, struct seq_file *seq);
-__u16 obd_get_mod_rpc_slot(struct client_obd *cli, __u32 opc,
- struct lookup_intent *it);
-void obd_put_mod_rpc_slot(struct client_obd *cli, __u32 opc,
- struct lookup_intent *it, __u16 tag);
+__u16 obd_get_mod_rpc_slot(struct client_obd *cli, __u32 opc);
+void obd_put_mod_rpc_slot(struct client_obd *cli, __u32 opc, __u16 tag);
struct llog_handle;
struct llog_rec_hdr;
ssize_t class_set_global(const char *param);
ssize_t class_modify_config(struct lustre_cfg *lcfg, const char *prefix,
struct kobject *kobj);
-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);
/* Passed as data param to class_config_parse_llog */
struct config_llog_instance {
- char *cfg_obdname;
- void *cfg_instance;
+ unsigned long cfg_instance;
struct super_block *cfg_sb;
struct obd_uuid cfg_uuid;
llog_cb_t cfg_callback;
int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
char *name, struct config_llog_instance *cfg);
+/**
+ * Generate a unique configuration instance for this mount
+ *
+ * Temporary hack to bypass ASLR in 4.15+ kernels, a better fix soon.
+ * For now, use the same value as before - the superblock pointer value.
+ *
+ * Using the client UUID would be an option, but it needs more testing.
+ */
+static inline unsigned long ll_get_cfg_instance(struct super_block *sb)
+{
+ return (unsigned long)sb;
+}
+
#define CONFIG_SUB_SPTLRPC 0x01
#define CONFIG_SUB_RECOVER 0x02
#define CONFIG_SUB_PARAMS 0x04
/* list of active configuration logs */
struct config_llog_data {
struct ldlm_res_id cld_resid;
+ struct lustre_handle cld_lockh;
struct config_llog_instance cld_cfg;
struct list_head cld_list_chain;/* on config_llog_list */
atomic_t cld_refcount;
/* 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_export *class_new_export(struct obd_device *obd,
struct obd_uuid *cluuid);
struct obd_export *class_new_export_self(struct obd_device *obd,
struct obd_uuid *uuid);
struct obd_import *class_new_import(struct obd_device *obd);
void class_destroy_import(struct obd_import *exp);
+#ifdef HAVE_SERVER_SUPPORT
struct obd_type *class_search_type(const char *name);
struct obd_type *class_get_type(const char *name);
+#endif
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);
+void class_disconnect_exports(struct obd_device *obd);
int class_manual_cleanup(struct obd_device *obd);
void class_disconnect_stale_exports(struct obd_device *,
int (*test_export)(struct obd_export *));
static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
{
int rc;
- struct lu_device_type *ldt = obd->obd_type->typ_lu;
- struct lu_device *d;
+ struct obd_type *type = obd->obd_type;
+ struct lu_device_type *ldt;
- ENTRY;
+ ENTRY;
- if (ldt != NULL) {
- struct lu_context session_ctx;
- struct lu_env env;
- lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
- session_ctx.lc_thread = NULL;
- lu_context_enter(&session_ctx);
+ wait_var_event(&type->typ_lu,
+ smp_load_acquire(&type->typ_lu) != OBD_LU_TYPE_SETUP);
+ ldt = type->typ_lu;
+ if (ldt != NULL) {
+ struct lu_context session_ctx;
+ struct lu_env env;
- 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);
+ lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
+ session_ctx.lc_thread = NULL;
+ lu_context_enter(&session_ctx);
- } else {
+ rc = lu_env_init(&env, ldt->ldt_ctx_tags);
+ if (rc == 0) {
+ struct lu_device *dev;
+ env.le_ses = &session_ctx;
+ dev = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
+ lu_env_fini(&env);
+ if (!IS_ERR(dev)) {
+ obd->obd_lu_dev = dev;
+ dev->ld_obd = obd;
+ rc = 0;
+ } else
+ rc = PTR_ERR(dev);
+ }
+ lu_context_exit(&session_ctx);
+ lu_context_fini(&session_ctx);
+ } else {
if (!obd->obd_type->typ_dt_ops->o_setup) {
CERROR("%s: no %s operation\n", obd->obd_name,
__func__);
RETURN(-EOPNOTSUPP);
}
- rc = OBP(obd, setup)(obd, cfg);
- }
- RETURN(rc);
+ rc = OBP(obd, setup)(obd, cfg);
+ }
+ RETURN(rc);
}
static inline int obd_precleanup(struct obd_device *obd)
ENTRY;
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_fini(&env, d);
- lu_env_fini(&env);
+ struct lu_env *env = lu_env_find();
+ struct lu_env _env;
+
+ if (!env) {
+ env = &_env;
+ rc = lu_env_init(env, ldt->ldt_ctx_tags);
+ LASSERT(rc == 0);
+ lu_env_add(env);
+ }
+ ldt->ldt_ops->ldto_device_fini(env, d);
+ if (env == &_env) {
+ lu_env_remove(env);
+ lu_env_fini(env);
}
}
RETURN(rc);
}
-static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
-{
- int rc;
- ENTRY;
-
- if (!exp->exp_obd->obd_type ||
- !exp->exp_obd->obd_type->typ_dt_ops->o_ping)
- RETURN(0);
-
- rc = OBP(exp->exp_obd, ping)(env, exp);
- RETURN(rc);
-}
-
static inline int obd_pool_new(struct obd_device *obd, char *poolname)
{
int rc;
obd = exp->exp_obd;
if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_statfs) {
- CERROR("%s: no %s operation\n", obd->obd_name, __func__);
- RETURN(-EOPNOTSUPP);
+ rc = -EOPNOTSUPP;
+ CERROR("%s: no statfs operation: rc = %d\n", obd->obd_name, rc);
+ RETURN(rc);
}
CDEBUG(D_SUPER, "%s: age %lld, max_age %lld\n",
obd->obd_name, obd->obd_osfs_age, max_age);
- if (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);
- }
+ rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
+
RETURN(rc);
}
obd->obd_name, obd->obd_osfs_age, max_age);
/* ignore cache if aggregated isn't expected */
if (obd->obd_osfs_age < max_age ||
- ((obd->obd_osfs.os_state & OS_STATE_SUM) &&
+ ((obd->obd_osfs.os_state & OS_STATFS_SUM) &&
!(flags & OBD_STATFS_SUM))) {
- rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
+ /* the RPC will block anyway, so avoid sending many at once */
+ rc = mutex_lock_interruptible(&obd->obd_dev_mutex);
+ if (rc)
+ RETURN(rc);
+ if (obd->obd_osfs_age < max_age ||
+ ((obd->obd_osfs.os_state & OS_STATFS_SUM) &&
+ !(flags & OBD_STATFS_SUM))) {
+ rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
+ } else {
+ mutex_unlock(&obd->obd_dev_mutex);
+ GOTO(cached, rc = 0);
+ }
if (rc == 0) {
+ CDEBUG(D_SUPER,
+ "%s: update %p cache blocks %llu/%llu objects %llu/%llu\n",
+ obd->obd_name, &obd->obd_osfs,
+ osfs->os_bavail, osfs->os_blocks,
+ osfs->os_ffree, osfs->os_files);
+
spin_lock(&obd->obd_osfs_lock);
memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
obd->obd_osfs_age = ktime_get_seconds();
spin_unlock(&obd->obd_osfs_lock);
}
+ mutex_unlock(&obd->obd_dev_mutex);
} else {
+cached:
CDEBUG(D_SUPER,
"%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
obd->obd_name, &obd->obd_osfs,
}
static inline int md_merge_attr(struct obd_export *exp,
+ const struct lu_fid *fid,
const struct lmv_stripe_md *lsm,
struct cl_attr *attr,
ldlm_blocking_callback cb)
if (rc)
return rc;
- return MDP(exp->exp_obd, merge_attr)(exp, lsm, attr, cb);
+ return MDP(exp->exp_obd, merge_attr)(exp, fid, lsm, attr, cb);
}
static inline int md_setxattr(struct obd_export *exp, const struct lu_fid *fid,
return MDP(exp->exp_obd, unpackmd)(exp, plsm, lmm, lmm_size);
}
+static inline int md_rmfid(struct obd_export *exp, struct fid_array *fa,
+ int *rcs, struct ptlrpc_request_set *set)
+{
+ int rc;
+
+ rc = exp_check_ops(exp);
+ if (rc)
+ return rc;
+
+ return MDP(exp->exp_obd, rmfid)(exp, fa, rcs, set);
+}
+
/* OBD Metadata Support */
extern int obd_init_caches(void);
int lustre_unregister_fs(void);
int lustre_check_exclusion(struct super_block *sb, char *svname);
-typedef __u8 class_uuid_t[16];
-static inline void class_uuid_unparse(class_uuid_t uu, struct obd_uuid *out)
-{
- snprintf(out->uuid, sizeof(out->uuid), "%02x%02x%02x%02x-%02x%02x-"
- "%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
- uu[14], uu[15], uu[12], uu[13], uu[10], uu[11], uu[8], uu[9],
- uu[6], uu[7], uu[4], uu[5], uu[2], uu[3], uu[0], uu[1]);
-}
-
/* 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);
/* class_obd.c */
extern char obd_jobid_name[];
-/* prng.c */
-#define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
-
/* statfs_pack.c */
struct kstatfs;
void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs);
void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs);
/* root squash info */
-struct rw_semaphore;
struct root_squash_info {
uid_t rsi_uid;
gid_t rsi_gid;
struct list_head rsi_nosquash_nids;
- struct rw_semaphore rsi_sem;
+ spinlock_t rsi_lock;
};
int server_name2index(const char *svname, __u32 *idx, const char **endptr);
int obd_ioctl_getdata(char **buf, int *len, void __user *arg);
int class_procfs_init(void);
int class_procfs_clean(void);
+
+extern void obd_heat_add(struct obd_heat_instance *instance,
+ unsigned int time_second, __u64 count,
+ unsigned int weight, unsigned int period_second);
+extern void obd_heat_decay(struct obd_heat_instance *instance,
+ __u64 time_second, unsigned int weight,
+ unsigned int period_second);
+extern __u64 obd_heat_get(struct obd_heat_instance *instance,
+ unsigned int time_second, unsigned int weight,
+ unsigned int period_second);
+extern void obd_heat_clear(struct obd_heat_instance *instance, int count);
#endif /* __LINUX_OBD_CLASS_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff