#define _OSP_INTERNAL_H
#include <obd.h>
+#include <obd_class.h>
#include <dt_object.h>
#include <lustre_fid.h>
+/*
+ * Infrastructure to support tracking of last committed llog record
+ */
+struct osp_id_tracker {
+ spinlock_t otr_lock;
+ __u32 otr_next_id;
+ __u32 otr_committed_id;
+ /* callback is register once per diskfs -- that's the whole point */
+ struct dt_txn_callback otr_tx_cb;
+ /* single node can run many clusters */
+ cfs_list_t otr_wakeup_list;
+ cfs_list_t otr_list;
+ /* underlying shared device */
+ struct dt_device *otr_dev;
+ /* how many users of this tracker */
+ cfs_atomic_t otr_refcount;
+};
+
struct osp_device {
struct dt_device opd_dt_dev;
/* corresponded OST index */
struct obd_export *opd_storage_exp;
struct dt_device *opd_storage;
struct dt_object *opd_last_used_file;
- /* protected by opd_pre_lock */
+
+ /* stored persistently in LE format, updated directly to/from disk
+ * and required le64_to_cpu() conversion before use.
+ * Protected by opd_pre_lock */
volatile obd_id opd_last_used_id;
+
obd_id opd_gap_start;
int opd_gap_count;
/* connection to OST */
* reported via ->ldo_recovery_complete() */
int opd_recovery_completed;
+ /*
+ * Precreation pool
+ */
+ spinlock_t opd_pre_lock;
+ /* last id assigned in creation */
+ __u64 opd_pre_used_id;
+ /* last created id OST reported, next-created - available id's */
+ __u64 opd_pre_last_created;
+ /* how many ids are reserved in declare, we shouldn't block in create */
+ __u64 opd_pre_reserved;
+ /* dedicate precreate thread */
+ struct ptlrpc_thread opd_pre_thread;
+ /* thread waits for signals about pool going empty */
+ cfs_waitq_t opd_pre_waitq;
+ /* consumers (who needs new ids) wait here */
+ cfs_waitq_t opd_pre_user_waitq;
+ /* current precreation status: working, failed, stopping? */
+ int opd_pre_status;
+ /* how many to precreate next time */
+ int opd_pre_grow_count;
+ int opd_pre_min_grow_count;
+ int opd_pre_max_grow_count;
+ /* whether to grow precreation window next time or not */
+ int opd_pre_grow_slow;
+ /* cleaning up orphans or recreating missing objects */
+ int opd_pre_recovering;
+
+ /*
+ * OST synchronization
+ */
+ spinlock_t opd_syn_lock;
+ /* unique generation, to recognize start of new records in the llog */
+ struct llog_gen opd_syn_generation;
+ /* number of changes to sync, used to wake up sync thread */
+ unsigned long opd_syn_changes;
+ /* processing of changes from previous mount is done? */
+ int opd_syn_prev_done;
+ /* found records */
+ struct ptlrpc_thread opd_syn_thread;
+ cfs_waitq_t opd_syn_waitq;
+ /* list of remotely committed rpc */
+ cfs_list_t opd_syn_committed_there;
+ /* number of changes being under sync */
+ int opd_syn_sync_in_progress;
+ /* number of RPCs in flight - flow control */
+ int opd_syn_rpc_in_flight;
+ int opd_syn_max_rpc_in_flight;
+ /* number of RPC in processing (including non-committed by OST) */
+ int opd_syn_rpc_in_progress;
+ int opd_syn_max_rpc_in_progress;
+ /* osd api's commit cb control structure */
+ struct dt_txn_callback opd_syn_txn_cb;
+ /* last used change number -- semantically similar to transno */
+ unsigned long opd_syn_last_used_id;
+ /* last committed change number -- semantically similar to
+ * last_committed */
+ unsigned long opd_syn_last_committed_id;
+ /* last processed (taken from llog) id */
+ unsigned long opd_syn_last_processed_id;
+ struct osp_id_tracker *opd_syn_tracker;
+ cfs_list_t opd_syn_ontrack;
+
+ /*
+ * statfs related fields: OSP maintains it on its own
+ */
+ struct obd_statfs opd_statfs;
+ cfs_time_t opd_statfs_fresh_till;
+ cfs_timer_t opd_statfs_timer;
+ int opd_statfs_update_in_progress;
+ /* how often to update statfs data */
+ int opd_statfs_maxage;
+
cfs_proc_dir_entry_t *opd_symlink;
};
struct osp_object {
struct lu_object_header opo_header;
struct dt_object opo_obj;
- int opo_reserved;
+ int opo_reserved:1,
+ opo_new:1;
};
extern struct lu_object_operations osp_lu_obj_ops;
+extern const struct dt_device_operations osp_dt_ops;
struct osp_thread_info {
struct lu_buf osi_lb;
struct lu_fid osi_fid;
struct lu_attr osi_attr;
+ struct ost_id osi_oi;
obd_id osi_id;
loff_t osi_off;
+ union {
+ struct llog_rec_hdr osi_hdr;
+ struct llog_unlink64_rec osi_unlink;
+ struct llog_setattr64_rec osi_setattr;
+ struct llog_gen_rec osi_gen;
+ };
+ struct llog_cookie osi_cookie;
+ struct llog_catid osi_cid;
};
static inline void osp_objid_buf_prep(struct osp_thread_info *osi,
/* osp_dev.c */
void osp_update_last_id(struct osp_device *d, obd_id objid);
+/* osp_precreate.c */
+int osp_init_precreate(struct osp_device *d);
+int osp_precreate_reserve(const struct lu_env *env, struct osp_device *d);
+__u64 osp_precreate_get_id(struct osp_device *d);
+void osp_precreate_fini(struct osp_device *d);
+int osp_object_truncate(const struct lu_env *env, struct dt_object *dt, __u64);
+void osp_pre_update_status(struct osp_device *d, int rc);
+void osp_statfs_need_now(struct osp_device *d);
+
/* lproc_osp.c */
void lprocfs_osp_init_vars(struct lprocfs_static_vars *lvars);
+void osp_lprocfs_init(struct osp_device *osp);
+
+/* osp_sync.c */
+int osp_sync_declare_add(const struct lu_env *env, struct osp_object *o,
+ llog_op_type type, struct thandle *th);
+int osp_sync_add(const struct lu_env *env, struct osp_object *o,
+ llog_op_type type, struct thandle *th,
+ const struct lu_attr *attr);
+int osp_sync_init(const struct lu_env *env, struct osp_device *d);
+int osp_sync_fini(struct osp_device *d);
+void __osp_sync_check_for_work(struct osp_device *d);
+
+/* osp_ost.c */
+int osp_init_for_ost(const struct lu_env *env, struct osp_device *m,
+ struct lu_device_type *ldt, struct lustre_cfg *cfg);
+int osp_disconnect(struct osp_device *d);
+int osp_fini_for_ost(struct osp_device *osp);
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff