* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <obd.h>
#include <obd_class.h>
#include <dt_object.h>
+#include <md_object.h>
#include <lustre_fid.h>
+#include <lustre_update.h>
+#include <lu_target.h>
/*
* Infrastructure to support tracking of last committed llog record
/* 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;
+ struct list_head otr_wakeup_list;
+ struct list_head otr_list;
/* underlying shared device */
struct dt_device *otr_dev;
/* how many users of this tracker */
- cfs_atomic_t otr_refcount;
+ atomic_t otr_refcount;
+};
+
+struct osp_precreate {
+ /*
+ * Precreation pool
+ */
+ spinlock_t osp_pre_lock;
+
+ /* last fid to assign in creation */
+ struct lu_fid osp_pre_used_fid;
+ /* last created id OST reported, next-created - available id's */
+ struct lu_fid osp_pre_last_created_fid;
+ /* how many ids are reserved in declare, we shouldn't block in create */
+ __u64 osp_pre_reserved;
+ /* consumers (who needs new ids) wait here */
+ wait_queue_head_t osp_pre_user_waitq;
+ /* current precreation status: working, failed, stopping? */
+ int osp_pre_status;
+ /* how many to precreate next time */
+ int osp_pre_grow_count;
+ int osp_pre_min_grow_count;
+ int osp_pre_max_grow_count;
+ /* whether to grow precreation window next time or not */
+ int osp_pre_grow_slow;
+ /* cleaning up orphans or recreating missing objects */
+ int osp_pre_recovering;
};
struct osp_device {
struct dt_device opd_dt_dev;
/* corresponded OST index */
int opd_index;
+
+ /* corrsponded MDT index, which will be used when connecting to OST
+ * for validating the connection (see ofd_parse_connect_data) */
+ int opd_group;
/* device used to store persistent state (llogs, last ids) */
struct obd_export *opd_storage_exp;
struct dt_device *opd_storage;
- struct dt_object *opd_last_used_file;
+ struct dt_object *opd_last_used_oid_file;
+ struct dt_object *opd_last_used_seq_file;
/* 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;
+ struct lu_fid opd_last_used_fid;
+ struct lu_fid opd_gap_start_fid;
int opd_gap_count;
/* connection to OST */
struct obd_device *opd_obd;
cfs_proc_dir_entry_t *opd_proc_entry;
struct lprocfs_stats *opd_stats;
/* connection status. */
- int opd_new_connection;
- int opd_got_disconnected;
- int opd_imp_connected;
- int opd_imp_active;
- int opd_imp_seen_connected:1,
+ unsigned int opd_new_connection:1,
+ opd_got_disconnected:1,
+ opd_imp_connected:1,
+ opd_imp_active:1,
+ opd_imp_seen_connected:1,
opd_connect_mdt:1;
/* whether local recovery is completed:
* 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;
+ /* precreate structure for OSP */
+ struct osp_precreate *opd_pre;
/* 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;
+ wait_queue_head_t opd_pre_waitq;
/*
* OST synchronization
int opd_syn_prev_done;
/* found records */
struct ptlrpc_thread opd_syn_thread;
- cfs_waitq_t opd_syn_waitq;
+ wait_queue_head_t opd_syn_waitq;
/* list of remotely committed rpc */
- cfs_list_t opd_syn_committed_there;
+ struct list_head opd_syn_committed_there;
/* number of changes being under sync */
int opd_syn_sync_in_progress;
/* number of RPCs in flight - flow control */
/* 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;
+ struct list_head opd_syn_ontrack;
+ /* stop processing new requests until barrier=0 */
+ atomic_t opd_syn_barrier;
+ wait_queue_head_t opd_syn_barrier_waitq;
/*
* 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;
+ struct timer_list 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;
+
+ /* If the caller wants to do some idempotent async operations on
+ * remote server, it can append the async remote requests on the
+ * osp_device::opd_async_requests via declare() functions, these
+ * requests can be packed together and sent to the remote server
+ * via single OUT RPC later. */
+ struct dt_update_request *opd_async_requests;
+ /* Protect current operations on opd_async_requests. */
+ struct mutex opd_async_requests_mutex;
+};
+
+#define opd_pre_lock opd_pre->osp_pre_lock
+#define opd_pre_used_fid opd_pre->osp_pre_used_fid
+#define opd_pre_last_created_fid opd_pre->osp_pre_last_created_fid
+#define opd_pre_reserved opd_pre->osp_pre_reserved
+#define opd_pre_user_waitq opd_pre->osp_pre_user_waitq
+#define opd_pre_status opd_pre->osp_pre_status
+#define opd_pre_grow_count opd_pre->osp_pre_grow_count
+#define opd_pre_min_grow_count opd_pre->osp_pre_min_grow_count
+#define opd_pre_max_grow_count opd_pre->osp_pre_max_grow_count
+#define opd_pre_grow_slow opd_pre->osp_pre_grow_slow
+#define opd_pre_recovering opd_pre->osp_pre_recovering
+
+extern struct kmem_cache *osp_object_kmem;
+
+/* The first part of oxe_buf is xattr name, and is '\0' terminated.
+ * The left part is for value, binary mode. */
+struct osp_xattr_entry {
+ struct list_head oxe_list;
+ atomic_t oxe_ref;
+ void *oxe_value;
+ int oxe_buflen;
+ int oxe_namelen;
+ int oxe_vallen;
+ unsigned int oxe_exist:1,
+ oxe_ready:1;
+ char oxe_buf[0];
};
-extern cfs_mem_cache_t *osp_object_kmem;
+struct osp_object_attr {
+ struct lu_attr ooa_attr;
+ struct list_head ooa_xattr_list;
+};
/* this is a top object */
struct osp_object {
- struct lu_object_header opo_header;
- struct dt_object opo_obj;
- int opo_reserved:1,
- opo_new:1;
+ struct lu_object_header opo_header;
+ struct dt_object opo_obj;
+ unsigned int opo_reserved:1,
+ opo_new:1,
+ opo_non_exist:1;
+
+ /* read/write lock for md osp object */
+ struct rw_semaphore opo_sem;
+ const struct lu_env *opo_owner;
+ struct osp_object_attr *opo_ooa;
+ /* Protect opo_ooa. */
+ spinlock_t opo_lock;
};
extern struct lu_object_operations osp_lu_obj_ops;
extern const struct dt_device_operations osp_dt_ops;
+extern struct dt_object_operations osp_md_obj_ops;
+extern struct dt_body_operations osp_md_body_ops;
struct osp_thread_info {
struct lu_buf osi_lb;
+ struct lu_buf osi_lb2;
struct lu_fid osi_fid;
struct lu_attr osi_attr;
struct ost_id osi_oi;
+ struct ost_id osi_oi2;
obd_id osi_id;
loff_t osi_off;
union {
struct llog_cookie osi_cookie;
struct llog_catid osi_cid;
struct lu_seq_range osi_seq;
+ struct ldlm_res_id osi_resid;
+ struct obdo osi_obdo;
+};
+
+/* Iterator for OSP */
+struct osp_it {
+ __u32 ooi_pos_page;
+ __u32 ooi_pos_lu_page;
+ int ooi_pos_ent;
+ int ooi_total_npages;
+ int ooi_valid_npages;
+ unsigned int ooi_swab:1;
+ __u64 ooi_next;
+ struct dt_object *ooi_obj;
+ void *ooi_ent;
+ struct page *ooi_cur_page;
+ struct lu_idxpage *ooi_cur_idxpage;
+ struct page **ooi_pages;
};
-static inline void osp_objid_buf_prep(struct osp_thread_info *osi,
- struct osp_device *d, int index)
+/* The transaction only include the updates on the remote node, and
+ * no local updates at all */
+static inline bool is_only_remote_trans(struct thandle *th)
+{
+ return th->th_dev != NULL && th->th_dev->dd_ops == &osp_dt_ops;
+}
+
+static inline void osp_objid_buf_prep(struct lu_buf *buf, loff_t *off,
+ __u32 *id, int index)
+{
+ buf->lb_buf = (void *)id;
+ buf->lb_len = sizeof(obd_id);
+ *off = sizeof(obd_id) * index;
+}
+
+static inline void osp_objseq_buf_prep(struct lu_buf *buf, loff_t *off,
+ __u64 *seq, int index)
{
- osi->osi_lb.lb_buf = (void *)&d->opd_last_used_id;
- osi->osi_lb.lb_len = sizeof(d->opd_last_used_id);
- osi->osi_off = sizeof(d->opd_last_used_id) * index;
+ buf->lb_buf = (void *)seq;
+ buf->lb_len = sizeof(obd_id);
+ *off = sizeof(obd_id) * index;
+}
+
+static inline void osp_buf_prep(struct lu_buf *lb, void *buf, int buf_len)
+{
+ lb->lb_buf = buf;
+ lb->lb_len = buf_len;
}
extern struct lu_context_key osp_thread_key;
struct dt_object, do_lu);
}
+static inline struct seq_server_site *osp_seq_site(struct osp_device *osp)
+{
+ return osp->opd_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
+}
+
#define osp_init_rpc_lock(lck) mdc_init_rpc_lock(lck)
#define osp_get_rpc_lock(lck, it) mdc_get_rpc_lock(lck, it)
#define osp_put_rpc_lock(lck, it) mdc_put_rpc_lock(lck, it)
+static inline int osp_fid_diff(const struct lu_fid *fid1,
+ const struct lu_fid *fid2)
+{
+ /* In 2.6+ ost_idx is packed into IDIF FID, while in 2.4 and 2.5 IDIF
+ * is always FID_SEQ_IDIF(0x100000000ULL), which does not include OST
+ * index in the seq. So we can not compare IDIF FID seq here */
+ if (fid_is_idif(fid1) && fid_is_idif(fid2)) {
+ __u32 ost_idx1 = fid_idif_ost_idx(fid1);
+ __u32 ost_idx2 = fid_idif_ost_idx(fid2);
+
+ LASSERTF(ost_idx1 == 0 || ost_idx2 == 0 || ost_idx1 == ost_idx2,
+ "fid1: "DFID", fid2: "DFID"\n", PFID(fid1),
+ PFID(fid2));
+
+ return fid_idif_id(fid1->f_seq, fid1->f_oid, 0) -
+ fid_idif_id(fid2->f_seq, fid2->f_oid, 0);
+ }
+
+ LASSERTF(fid_seq(fid1) == fid_seq(fid2), "fid1:"DFID
+ ", fid2:"DFID"\n", PFID(fid1), PFID(fid2));
+
+ return fid_oid(fid1) - fid_oid(fid2);
+}
+
+
+static inline void osp_update_last_fid(struct osp_device *d, struct lu_fid *fid)
+{
+ int diff = osp_fid_diff(fid, &d->opd_last_used_fid);
+ /*
+ * we might have lost precreated objects due to VBR and precreate
+ * orphans, the gap in objid can be calculated properly only here
+ */
+ if (diff > 0) {
+ if (diff > 1) {
+ d->opd_gap_start_fid = d->opd_last_used_fid;
+ d->opd_gap_start_fid.f_oid++;
+ d->opd_gap_count = diff - 1;
+ CDEBUG(D_HA, "Gap in objids: start="DFID", count =%d\n",
+ PFID(&d->opd_gap_start_fid), d->opd_gap_count);
+ }
+ d->opd_last_used_fid = *fid;
+ }
+}
+
+static int osp_fid_end_seq(const struct lu_env *env, struct lu_fid *fid)
+{
+ if (fid_is_idif(fid)) {
+ struct osp_thread_info *info = osp_env_info(env);
+ struct ost_id *oi = &info->osi_oi;
+
+ fid_to_ostid(fid, oi);
+ return ostid_id(oi) == IDIF_MAX_OID;
+ } else {
+ return fid_oid(fid) == LUSTRE_DATA_SEQ_MAX_WIDTH;
+ }
+}
+
+static inline int osp_precreate_end_seq_nolock(const struct lu_env *env,
+ struct osp_device *osp)
+{
+ struct lu_fid *fid = &osp->opd_pre_last_created_fid;
+
+ return osp_fid_end_seq(env, fid);
+}
+
+static inline int osp_precreate_end_seq(const struct lu_env *env,
+ struct osp_device *osp)
+{
+ int rc;
+
+ spin_lock(&osp->opd_pre_lock);
+ rc = osp_precreate_end_seq_nolock(env, osp);
+ spin_unlock(&osp->opd_pre_lock);
+ return rc;
+}
+
+static inline int osp_is_fid_client(struct osp_device *osp)
+{
+ struct obd_import *imp = osp->opd_obd->u.cli.cl_import;
+
+ return imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_FID;
+}
+
+typedef int (*osp_async_request_interpreter_t)(const struct lu_env *env,
+ struct object_update_reply *rep,
+ struct ptlrpc_request *req,
+ struct osp_object *obj,
+ void *data, int index, int rc);
+
/* osp_dev.c */
void osp_update_last_id(struct osp_device *d, obd_id objid);
extern struct llog_operations osp_mds_ost_orig_logops;
+/* osp_trans.c */
+int osp_insert_async_request(const struct lu_env *env,
+ int op, struct osp_object *obj, int count,
+ int *lens, const char **bufs, void *data,
+ osp_async_request_interpreter_t interpterer);
+int osp_unplug_async_request(const struct lu_env *env,
+ struct osp_device *osp,
+ struct dt_update_request *update);
+struct thandle *osp_trans_create(const struct lu_env *env,
+ struct dt_device *d);
+int osp_trans_start(const struct lu_env *env, struct dt_device *dt,
+ struct thandle *th);
+
+/* osp_object.c */
+int osp_attr_get(const struct lu_env *env, struct dt_object *dt,
+ struct lu_attr *attr, struct lustre_capa *capa);
+int osp_xattr_get(const struct lu_env *env, struct dt_object *dt,
+ struct lu_buf *buf, const char *name,
+ struct lustre_capa *capa);
+int osp_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_buf *buf, const char *name,
+ int flag, struct thandle *th);
+int osp_xattr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_buf *buf, const char *name, int fl,
+ struct thandle *th, struct lustre_capa *capa);
+int osp_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
+ const char *name, struct thandle *th);
+int osp_xattr_del(const struct lu_env *env, struct dt_object *dt,
+ const char *name, struct thandle *th,
+ struct lustre_capa *capa);
+
+int osp_declare_object_destroy(const struct lu_env *env,
+ struct dt_object *dt, struct thandle *th);
+int osp_object_destroy(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th);
+
+int osp_trans_stop(const struct lu_env *env, struct dt_device *dt,
+ struct thandle *th);
+
+struct dt_it *osp_it_init(const struct lu_env *env, struct dt_object *dt,
+ __u32 attr, struct lustre_capa *capa);
+void osp_it_fini(const struct lu_env *env, struct dt_it *di);
+int osp_it_get(const struct lu_env *env, struct dt_it *di,
+ const struct dt_key *key);
+void osp_it_put(const struct lu_env *env, struct dt_it *di);
+__u64 osp_it_store(const struct lu_env *env, const struct dt_it *di);
+int osp_it_key_rec(const struct lu_env *env, const struct dt_it *di,
+ void *key_rec);
+int osp_it_next_page(const struct lu_env *env, struct dt_it *di);
+/* osp_md_object.c */
+int osp_md_declare_object_create(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ struct dt_allocation_hint *hint,
+ struct dt_object_format *dof,
+ struct thandle *th);
+int osp_md_object_create(const struct lu_env *env, struct dt_object *dt,
+ struct lu_attr *attr, struct dt_allocation_hint *hint,
+ struct dt_object_format *dof, struct thandle *th);
+int osp_md_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_attr *attr, struct thandle *th);
+int osp_md_attr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_attr *attr, struct thandle *th,
+ struct lustre_capa *capa);
+extern const struct dt_index_operations osp_md_index_ops;
+
/* 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);
+int osp_precreate_get_fid(const struct lu_env *env, struct osp_device *d,
+ struct lu_fid *fid);
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);
+int osp_reset_last_used(const struct lu_env *env, struct osp_device *osp);
+int osp_write_last_oid_seq_files(struct lu_env *env, struct osp_device *osp,
+ struct lu_fid *fid, int sync);
+int osp_init_pre_fid(struct osp_device *osp);
/* 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_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);
+/* lwp_dev.c */
+extern struct obd_ops lwp_obd_device_ops;
+extern struct lu_device_type lwp_device_type;
#endif
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