X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fosp%2Fosp_internal.h;h=243d3ca8352de7689eb0614b1f6abee4011fb309;hp=e75c2468d5db5590d7fd20d639d628405daba24c;hb=26b8238659974959780cd49de92595b4b0bdf89f;hpb=04e1d0cb95e1ad1288676c276efd98f6786a58d7

diff --git a/lustre/osp/osp_internal.h b/lustre/osp/osp_internal.h
index e75c246..243d3ca 100644
--- a/lustre/osp/osp_internal.h
+++ b/lustre/osp/osp_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel, Inc.
+ * Copyright (c) 2012, 2014, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -44,41 +44,75 @@
 #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>
+#include <lustre_mdc.h>
 
 /*
  * Infrastructure to support tracking of last committed llog record
  */
 struct osp_id_tracker {
-	cfs_spinlock_t		 otr_lock;
+	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;
+	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;
@@ -86,48 +120,31 @@ struct osp_device {
 	struct obd_uuid			 opd_cluuid;
 	struct obd_connect_data		*opd_connect_data;
 	int				 opd_connects;
-	cfs_proc_dir_entry_t		*opd_proc_entry;
+	struct proc_dir_entry		*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
-	 */
-	cfs_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;
+	wait_queue_head_t		 opd_pre_waitq;
 
 	/*
 	 * OST synchronization
 	 */
-	cfs_spinlock_t			 opd_syn_lock;
+	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 */
@@ -136,9 +153,9 @@ struct osp_device {
 	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 */
@@ -157,40 +174,97 @@ struct osp_device {
 	/* 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;
+	struct proc_dir_entry		*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;
+	struct list_head		 opd_async_updates;
+	struct rw_semaphore		 opd_async_updates_rwsem;
+	atomic_t			 opd_async_updates_count;
+};
+
+#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;
+	size_t			 oxe_buflen;
+	size_t			 oxe_namelen;
+	size_t			 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_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;
-	obd_id			 osi_id;
+	struct ost_id		 osi_oi2;
+	u64			 osi_id;
 	loff_t			 osi_off;
 	union {
 		struct llog_rec_hdr		osi_hdr;
@@ -200,14 +274,57 @@ struct osp_thread_info {
 	};
 	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;
+	__u32			  ooi_attr;
+	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)
+{
+	/* Note: through id is only 32 bits, it will also write 64 bits
+	 * for oid to keep compatibility with the previous version. */
+	buf->lb_buf = (void *)id;
+	buf->lb_len = sizeof(u64);
+	*off = sizeof(u64) * index;
+}
+
+static inline void osp_objseq_buf_prep(struct lu_buf *buf, loff_t *off,
+				       __u64 *seq, int index)
+{
+	buf->lb_buf = (void *)seq;
+	buf->lb_len = sizeof(u64);
+	*off = sizeof(u64) * index;
+}
+
+static inline void osp_buf_prep(struct lu_buf *lb, void *buf, int buf_len)
 {
-	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;
+	lb->lb_buf = buf;
+	lb->lb_len = buf_len;
 }
 
 extern struct lu_context_key osp_thread_key;
@@ -291,20 +408,203 @@ static inline struct dt_object *osp_object_child(struct osp_object *o)
                              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)
+
+static inline void osp_get_rpc_lock(struct osp_device *osp)
+{
+	struct mdc_rpc_lock *rpc_lock = osp->opd_obd->u.cli.cl_rpc_lock;
+
+	mdc_get_rpc_lock(rpc_lock, NULL);
+}
+
+static inline void osp_put_rpc_lock(struct osp_device *osp)
+{
+	struct mdc_rpc_lock *rpc_lock = osp->opd_obd->u.cli.cl_rpc_lock;
+
+	mdc_put_rpc_lock(rpc_lock, NULL);
+}
+
+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);
+void osp_update_last_id(struct osp_device *d, u64 objid);
+extern struct llog_operations osp_mds_ost_orig_logops;
+
+/* osp_trans.c */
+int osp_insert_async_request(const struct lu_env *env, enum update_type op,
+			     struct osp_object *obj, int count, __u16 *lens,
+			     const void **bufs, void *data,
+			     osp_async_request_interpreter_t interpreter);
+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);
+int osp_prep_update_req(const struct lu_env *env, struct obd_import *imp,
+			const struct object_update_request *ureq,
+			struct ptlrpc_request **reqp);
+int osp_remote_sync(const struct lu_env *env, struct osp_device *osp,
+		    struct dt_update_request *update,
+		    struct ptlrpc_request **reqp, bool rpc_lock);
+/* osp_object.c */
+int osp_attr_get(const struct lu_env *env, struct dt_object *dt,
+		 struct lu_attr *attr);
+int osp_xattr_get(const struct lu_env *env, struct dt_object *dt,
+		  struct lu_buf *buf, const char *name);
+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);
+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);
+
+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);
+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_attr_set(const struct lu_env *env, struct dt_object *dt,
+		      const struct lu_attr *attr, struct thandle *th);
+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_declare_add(const struct lu_env *env, struct osp_object *o,
@@ -316,10 +616,8 @@ 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);
+/* lwp_dev.c */
+extern struct obd_ops lwp_obd_device_ops;
+extern struct lu_device_type lwp_device_type;
 
 #endif