X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flustre_update.h;h=78cd3d4bfdd5190667774d291a0b3d751ebfca84;hb=0c1ae1cb9c19f8a4f6c5a7ff6a1fd54807430795;hp=d79cd70d629e2f1cea882fb5c1235cc634f27939;hpb=4112a290df2763d53760ef6a96ee2453a41f1856;p=fs%2Flustre-release.git

diff --git a/lustre/include/lustre_update.h b/lustre/include/lustre_update.h
index d79cd70..78cd3d4 100644
--- a/lustre/include/lustre_update.h
+++ b/lustre/include/lustre_update.h
@@ -20,7 +20,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright (c) 2013, Intel Corporation.
+ * Copyright (c) 2013, 2017, Intel Corporation.
  */
 /*
  * lustre/include/lustre_update.h
@@ -30,161 +30,680 @@
 
 #ifndef _LUSTRE_UPDATE_H
 #define _LUSTRE_UPDATE_H
+#include <dt_object.h>
+#include <lustre_net.h>
+#include <obj_update.h>
 
-#define UPDATE_BUFFER_SIZE	8192
-struct update_request {
-	struct dt_device	*ur_dt;
-	cfs_list_t		ur_list;    /* attached itself to thandle */
-	int			ur_flags;
-	int			ur_rc;
-	struct update_buf	*ur_buf;   /* Holding the update req */
-};
+#define OUT_UPDATE_REPLY_SIZE		4096
+#define OUT_BULK_BUFFER_SIZE		4096
+
+struct dt_key;
+struct dt_rec;
+struct object_update_param;
+struct llog_update_record;
 
-static inline unsigned long update_size(struct update *update)
+static inline size_t update_params_size(const struct update_params *params,
+					unsigned int param_count)
 {
-	unsigned long size;
-	int	   i;
+	struct object_update_param	*param;
+	size_t total_size = sizeof(*params);
+	unsigned int i;
 
-	size = cfs_size_round(offsetof(struct update, u_bufs[0]));
-	for (i = 0; i < UPDATE_BUF_COUNT; i++)
-		size += cfs_size_round(update->u_lens[i]);
+	param = (struct object_update_param *)&params->up_params[0];
+	for (i = 0; i < param_count; i++) {
+		size_t size = object_update_param_size(param);
 
-	return size;
+		param = (struct object_update_param *)((char *)param + size);
+		total_size += size;
+	}
+
+	return total_size;
 }
 
-static inline void *update_param_buf(struct update *update, int index,
-				     int *size)
+static inline struct object_update_param *
+update_params_get_param(const struct update_params *params,
+			unsigned int index, unsigned int param_count)
 {
-	int	i;
-	void	*ptr;
+	struct object_update_param *param;
+	unsigned int		i;
 
-	if (index >= UPDATE_BUF_COUNT)
+	if (index > param_count)
 		return NULL;
 
-	ptr = (char *)update + cfs_size_round(offsetof(struct update,
-						       u_bufs[0]));
-	for (i = 0; i < index; i++) {
-		LASSERT(update->u_lens[i] > 0);
-		ptr += cfs_size_round(update->u_lens[i]);
-	}
+	param = (struct object_update_param *)&params->up_params[0];
+	for (i = 0; i < index; i++)
+		param = (struct object_update_param *)((char *)param +
+			object_update_param_size(param));
+
+	return param;
+}
+
+static inline void*
+update_params_get_param_buf(const struct update_params *params, __u16 index,
+			    unsigned int param_count, __u16 *size)
+{
+	struct object_update_param *param;
+
+	param = update_params_get_param(params, (unsigned int)index,
+					param_count);
+	if (param == NULL)
+		return NULL;
 
 	if (size != NULL)
-		*size = update->u_lens[index];
+		*size = param->oup_len;
+
+	return param->oup_buf;
+}
 
-	return ptr;
+static inline size_t
+update_op_size(unsigned int param_count)
+{
+	return offsetof(struct update_op, uop_params_off[param_count]);
 }
 
-static inline unsigned long update_buf_size(struct update_buf *buf)
+static inline struct update_op *
+update_op_next_op(const struct update_op *uop)
 {
-	unsigned long size;
-	int	   i = 0;
+	return (struct update_op *)((char *)uop +
+				update_op_size(uop->uop_param_count));
+}
 
-	size = cfs_size_round(offsetof(struct update_buf, ub_bufs[0]));
-	for (i = 0; i < buf->ub_count; i++) {
-		struct update *update;
+static inline size_t update_ops_size(const struct update_ops *ops,
+				     unsigned int update_count)
+{
+	struct update_op *op;
+	size_t total_size = sizeof(*ops);
+	unsigned int i;
 
-		update = (struct update *)((char *)buf + size);
-		size += update_size(update);
-	}
-	LASSERT(size <= UPDATE_BUFFER_SIZE);
-	return size;
+	op = (struct update_op *)&ops->uops_op[0];
+	for (i = 0; i < update_count; i++, op = update_op_next_op(op))
+		total_size += update_op_size(op->uop_param_count);
+
+	return total_size;
 }
 
-static inline void *update_buf_get(struct update_buf *buf, int index, int *size)
+static inline struct update_params *
+update_records_get_params(const struct update_records *record)
 {
-	int	count = buf->ub_count;
-	void	*ptr;
-	int	i = 0;
+	return (struct update_params *)((char *)record +
+		offsetof(struct update_records, ur_ops) +
+		update_ops_size(&record->ur_ops, record->ur_update_count));
+}
 
-	if (index >= count)
-		return NULL;
+static inline struct update_param *
+update_param_next_param(const struct update_param *param)
+{
+	return (struct update_param *)((char *)param +
+				       object_update_param_size(
+					  (struct object_update_param *)param));
+}
 
-	ptr = (char *)buf + cfs_size_round(offsetof(struct update_buf,
-						    ub_bufs[0]));
-	for (i = 0; i < index; i++)
-		ptr += update_size((struct update *)ptr);
+static inline size_t
+__update_records_size(size_t raw_size)
+{
+	return cfs_size_round(offsetof(struct update_records, ur_ops) +
+			      raw_size);
+}
 
-	if (size != NULL)
-		*size = update_size((struct update *)ptr);
+static inline size_t
+update_records_size(const struct update_records *record)
+{
+	size_t op_size = 0;
+	size_t param_size = 0;
 
-	return ptr;
+	if (record->ur_update_count > 0)
+		op_size = update_ops_size(&record->ur_ops,
+					  record->ur_update_count);
+	if (record->ur_param_count > 0) {
+		struct update_params *params;
+
+		params = update_records_get_params(record);
+		param_size = update_params_size(params, record->ur_param_count);
+	}
+
+	return __update_records_size(op_size + param_size);
 }
 
-static inline void update_init_reply_buf(struct update_reply *reply, int count)
+static inline size_t
+__llog_update_record_size(size_t records_size)
 {
-	reply->ur_version = UPDATE_REPLY_V1;
-	reply->ur_count = count;
+	return cfs_size_round(sizeof(struct llog_rec_hdr) + records_size +
+			      sizeof(struct llog_rec_tail));
 }
 
-static inline void *update_get_buf_internal(struct update_reply *reply,
-					    int index, int *size)
+static inline size_t
+llog_update_record_size(const struct llog_update_record *lur)
 {
-	char *ptr;
-	int count = reply->ur_count;
-	int i;
+	return __llog_update_record_size(
+			update_records_size(&lur->lur_update_rec));
+}
 
-	if (index >= count)
+static inline struct update_op *
+update_ops_get_op(const struct update_ops *ops, unsigned int index,
+		  unsigned int update_count)
+{
+	struct update_op *op;
+	unsigned int i;
+
+	if (index > update_count)
 		return NULL;
 
-	ptr = (char *)reply + cfs_size_round(offsetof(struct update_reply,
-					     ur_lens[count]));
-	for (i = 0; i < index; i++) {
-		LASSERT(reply->ur_lens[i] > 0);
-		ptr += cfs_size_round(reply->ur_lens[i]);
-	}
+	op = (struct update_op *)&ops->uops_op[0];
+	for (i = 0; i < index; i++)
+		op = update_op_next_op(op);
+
+	return op;
+}
+
+static inline void
+*object_update_param_get(const struct object_update *update, size_t index,
+			 size_t *size)
+{
+	const struct	object_update_param *param;
+	size_t		i;
+
+	if (index >= update->ou_params_count)
+		return ERR_PTR(-EINVAL);
+
+	param = &update->ou_params[0];
+	for (i = 0; i < index; i++)
+		param = (struct object_update_param *)((char *)param +
+			object_update_param_size(param));
 
 	if (size != NULL)
-		*size = reply->ur_lens[index];
+		*size = param->oup_len;
+
+	if (param->oup_len == 0)
+		return ERR_PTR(-ENODATA);
 
-	return ptr;
+	return (void *)&param->oup_buf[0];
 }
 
-static inline void update_insert_reply(struct update_reply *reply, void *data,
-				       int data_len, int index, int rc)
+static inline unsigned long
+object_update_request_size(const struct object_update_request *our)
 {
-	char *ptr;
+	unsigned long	size;
+	size_t		i = 0;
 
-	ptr = update_get_buf_internal(reply, index, NULL);
-	LASSERT(ptr != NULL);
+	size = offsetof(struct object_update_request, ourq_updates[0]);
+	for (i = 0; i < our->ourq_count; i++) {
+		struct object_update *update;
 
-	*(int *)ptr = cpu_to_le32(rc);
-	ptr += sizeof(int);
-	if (data_len > 0) {
-		LASSERT(data != NULL);
-		memcpy(ptr, data, data_len);
+		update = (struct object_update *)((char *)our + size);
+		size += object_update_size(update);
 	}
-	reply->ur_lens[index] = data_len + sizeof(int);
+	return size;
 }
 
-static inline int update_get_reply_buf(struct update_reply *reply, void **buf,
-				       int index)
+static inline void
+object_update_result_insert(struct object_update_reply *reply,
+			    void *data, size_t data_len, size_t index,
+			    int rc)
 {
-	char *ptr;
-	int  size = 0;
-	int  result;
+	struct object_update_result *update_result;
 
-	ptr = update_get_buf_internal(reply, index, &size);
-	result = *(int *)ptr;
+	update_result = object_update_result_get(reply, index, NULL);
+	LASSERT(update_result);
+
+	update_result->our_rc = ptlrpc_status_hton(rc);
+	if (rc >= 0) {
+		if (data_len > 0 && data)
+			memcpy(update_result->our_data, data, data_len);
+		update_result->our_datalen = data_len;
+	}
 
+	reply->ourp_lens[index] = cfs_size_round(data_len +
+					sizeof(struct object_update_result));
+}
+
+static inline int
+object_update_result_data_get(const struct object_update_reply *reply,
+			      struct lu_buf *lbuf, size_t index)
+{
+	struct object_update_result *update_result;
+	size_t size = 0;
+	int    result;
+
+	LASSERT(lbuf != NULL);
+	update_result = object_update_result_get(reply, index, &size);
+	if (update_result == NULL ||
+	    size < cfs_size_round(sizeof(struct object_update_reply)) ||
+	    update_result->our_datalen > size)
+		RETURN(-EFAULT);
+
+	result = ptlrpc_status_ntoh(update_result->our_rc);
 	if (result < 0)
 		return result;
 
-	LASSERT((ptr != NULL && size >= sizeof(int)));
-	*buf = ptr + sizeof(int);
-	return size - sizeof(int);
+	lbuf->lb_buf = update_result->our_data;
+	lbuf->lb_len = update_result->our_datalen;
+
+	return result;
 }
 
-static inline int update_get_reply_result(struct update_reply *reply,
-					  void **buf, int index)
-{
-	void *ptr;
-	int  size;
+/**
+ * Attached in the thandle to record the updates for distribute
+ * distribution.
+ */
+struct thandle_update_records {
+	/* All of updates for the cross-MDT operation, vmalloc'd. */
+	struct llog_update_record	*tur_update_records;
+	size_t				tur_update_records_buf_size;
+
+	/* All of parameters for the cross-MDT operation, vmalloc'd */
+	struct update_params    *tur_update_params;
+	unsigned int		tur_update_param_count;
+	size_t			tur_update_params_buf_size;
+};
+
+#define TOP_THANDLE_MAGIC	0x20140917
+struct top_multiple_thandle {
+	struct dt_device	*tmt_master_sub_dt;
+	atomic_t		tmt_refcount;
+	/* Other sub transactions will be listed here. */
+	struct list_head	tmt_sub_thandle_list;
+	spinlock_t		tmt_sub_lock;
+
+	struct list_head	tmt_commit_list;
+	/* All of update records will packed here */
+	struct thandle_update_records *tmt_update_records;
+
+	wait_queue_head_t	tmt_stop_waitq;
+	__u64			tmt_batchid;
+	int			tmt_result;
+	__u32			tmt_magic;
+	size_t			tmt_record_size;
+	__u32			tmt_committed:1;
+};
 
-	ptr = update_get_buf_internal(reply, index, &size);
-	LASSERT(ptr != NULL && size > sizeof(int));
-	return *(int *)ptr;
+/* {top,sub}_thandle are used to manage distributed transactions which
+ * include updates on several nodes. A top_handle represents the
+ * whole operation, and sub_thandle represents updates on each node. */
+struct top_thandle {
+	struct thandle		tt_super;
+	/* The master sub transaction. */
+	struct thandle		*tt_master_sub_thandle;
+
+	struct top_multiple_thandle *tt_multiple_thandle;
+};
+
+struct sub_thandle_cookie {
+	struct llog_cookie	stc_cookie;
+	struct list_head	stc_list;
+};
+
+/* Sub thandle is used to track multiple sub thandles under one parent
+ * thandle */
+struct sub_thandle {
+	struct thandle		*st_sub_th;
+	struct dt_device	*st_dt;
+	struct list_head	st_cookie_list;
+	struct dt_txn_commit_cb	st_commit_dcb;
+	struct dt_txn_commit_cb	st_stop_dcb;
+	int			st_result;
+
+	/* linked to top_thandle */
+	struct list_head	st_sub_list;
+
+	/* If this sub thandle is committed */
+	bool			st_committed:1,
+				st_stopped:1,
+				st_started:1;
+};
+
+struct tx_arg;
+typedef int (*tx_exec_func_t)(const struct lu_env *env, struct thandle *th,
+			      struct tx_arg *ta);
+
+/* Structure for holding one update execution */
+struct tx_arg {
+	tx_exec_func_t		 exec_fn;
+	tx_exec_func_t		 undo_fn;
+	struct dt_object	*object;
+	const char		*file;
+	struct object_update_reply *reply;
+	int			 line;
+	int			 index;
+	union {
+		struct {
+			struct dt_insert_rec	 rec;
+			const struct dt_key	*key;
+		} insert;
+		struct {
+		} ref;
+		struct {
+			struct lu_attr	 attr;
+		} attr_set;
+		struct {
+			struct lu_buf	 buf;
+			const char	*name;
+			int		 flags;
+			__u32		 csum;
+		} xattr_set;
+		struct {
+			struct lu_attr			attr;
+			struct dt_allocation_hint	hint;
+			struct dt_object_format		dof;
+			struct lu_fid			fid;
+		} create;
+		struct {
+			struct lu_buf	buf;
+			loff_t		pos;
+		} write;
+		struct {
+			struct ost_body	    *body;
+		} destroy;
+	} u;
+};
+
+/* Structure for holding all update executations of one transaction */
+struct thandle_exec_args {
+	struct thandle		*ta_handle;
+	int			ta_argno;   /* used args */
+	int			ta_alloc_args; /* allocated args count */
+	struct tx_arg		**ta_args;
+};
+
+/* target/out_lib.c */
+int out_update_pack(const struct lu_env *env, struct object_update *update,
+		    size_t *max_update_size, enum update_type op,
+		    const struct lu_fid *fid, unsigned int params_count,
+		    __u16 *param_sizes, const void **param_bufs,
+		    __u32 reply_size);
+int out_create_pack(const struct lu_env *env, struct object_update *update,
+		    size_t *max_update_size, const struct lu_fid *fid,
+		    const struct lu_attr *attr, struct dt_allocation_hint *hint,
+		    struct dt_object_format *dof);
+int out_destroy_pack(const struct lu_env *env, struct object_update *update,
+		     size_t *max_update_size, const struct lu_fid *fid);
+int out_index_delete_pack(const struct lu_env *env,
+			  struct object_update *update, size_t *max_update_size,
+			  const struct lu_fid *fid, const struct dt_key *key);
+int out_index_insert_pack(const struct lu_env *env,
+			  struct object_update *update, size_t *max_update_size,
+			  const struct lu_fid *fid, const struct dt_rec *rec,
+			  const struct dt_key *key);
+int out_xattr_set_pack(const struct lu_env *env,
+		       struct object_update *update, size_t *max_update_size,
+		       const struct lu_fid *fid, const struct lu_buf *buf,
+		       const char *name, __u32 flag);
+int out_xattr_del_pack(const struct lu_env *env,
+		       struct object_update *update, size_t *max_update_size,
+		       const struct lu_fid *fid, const char *name);
+int out_attr_set_pack(const struct lu_env *env,
+		      struct object_update *update, size_t *max_update_size,
+		      const struct lu_fid *fid, const struct lu_attr *attr);
+int out_ref_add_pack(const struct lu_env *env,
+		     struct object_update *update, size_t *max_update_size,
+		     const struct lu_fid *fid);
+int out_ref_del_pack(const struct lu_env *env,
+		     struct object_update *update, size_t *max_update_size,
+		     const struct lu_fid *fid);
+int out_write_pack(const struct lu_env *env,
+		   struct object_update *update, size_t *max_update_size,
+		   const struct lu_fid *fid, const struct lu_buf *buf,
+		   __u64 pos);
+int out_attr_get_pack(const struct lu_env *env,
+		      struct object_update *update, size_t *max_update_size,
+		      const struct lu_fid *fid);
+int out_index_lookup_pack(const struct lu_env *env,
+			  struct object_update *update, size_t *max_update_size,
+			  const struct lu_fid *fid, struct dt_rec *rec,
+			  const struct dt_key *key);
+int out_xattr_get_pack(const struct lu_env *env,
+		       struct object_update *update, size_t *max_update_size,
+		       const struct lu_fid *fid, const char *name,
+		       const int bufsize);
+int out_xattr_list_pack(const struct lu_env *env, struct object_update *update,
+		       size_t *max_update_size, const struct lu_fid *fid,
+		       const int bufsize);
+int out_read_pack(const struct lu_env *env, struct object_update *update,
+		  size_t *max_update_length, const struct lu_fid *fid,
+		  size_t size, loff_t pos);
+
+const char *update_op_str(__u16 opcode);
+
+/* target/update_trans.c */
+struct thandle *thandle_get_sub_by_dt(const struct lu_env *env,
+				      struct thandle *th,
+				      struct dt_device *sub_dt);
+
+static inline struct thandle *
+thandle_get_sub(const struct lu_env *env, struct thandle *th,
+		 const struct dt_object *sub_obj)
+{
+	return thandle_get_sub_by_dt(env, th, lu2dt_dev(sub_obj->do_lu.lo_dev));
 }
 
-#endif
+struct thandle *
+top_trans_create(const struct lu_env *env, struct dt_device *master_dev);
+int top_trans_start(const struct lu_env *env, struct dt_device *master_dev,
+		    struct thandle *th);
+int top_trans_stop(const struct lu_env *env, struct dt_device *master_dev,
+		   struct thandle *th);
+void top_multiple_thandle_destroy(struct top_multiple_thandle *tmt);
 
+static inline void top_multiple_thandle_get(struct top_multiple_thandle *tmt)
+{
+	atomic_inc(&tmt->tmt_refcount);
+}
 
+static inline void top_multiple_thandle_put(struct top_multiple_thandle *tmt)
+{
+	if (atomic_dec_and_test(&tmt->tmt_refcount))
+		top_multiple_thandle_destroy(tmt);
+}
+
+struct sub_thandle *lookup_sub_thandle(struct top_multiple_thandle *tmt,
+				       struct dt_device *dt_dev);
+int sub_thandle_trans_create(const struct lu_env *env,
+			     struct top_thandle *top_th,
+			     struct sub_thandle *st);
+
+/* update_records.c */
+size_t update_records_create_size(const struct lu_env *env,
+				  const struct lu_fid *fid,
+				  const struct lu_attr *attr,
+				  const struct dt_allocation_hint *hint,
+				  struct dt_object_format *dof);
+size_t update_records_attr_set_size(const struct lu_env *env,
+				    const struct lu_fid *fid,
+				    const struct lu_attr *attr);
+size_t update_records_ref_add_size(const struct lu_env *env,
+				   const struct lu_fid *fid);
+size_t update_records_ref_del_size(const struct lu_env *env,
+				   const struct lu_fid *fid);
+size_t update_records_destroy_size(const struct lu_env *env,
+				   const struct lu_fid *fid);
+size_t update_records_index_insert_size(const struct lu_env *env,
+					const struct lu_fid *fid,
+					const struct dt_rec *rec,
+					const struct dt_key *key);
+size_t update_records_index_delete_size(const struct lu_env *env,
+					const struct lu_fid *fid,
+					const struct dt_key *key);
+size_t update_records_xattr_set_size(const struct lu_env *env,
+				     const struct lu_fid *fid,
+				     const struct lu_buf *buf,
+				     const char *name,
+				     __u32 flag);
+size_t update_records_xattr_del_size(const struct lu_env *env,
+				     const struct lu_fid *fid,
+				     const char *name);
+size_t update_records_write_size(const struct lu_env *env,
+				 const struct lu_fid *fid,
+				 const struct lu_buf *buf,
+				 __u64 pos);
+size_t update_records_punch_size(const struct lu_env *env,
+				 const struct lu_fid *fid,
+				 __u64 start, __u64 end);
+
+int update_records_create_pack(const struct lu_env *env,
+			       struct update_ops *ops,
+			       unsigned int *op_count,
+			       size_t *max_ops_size,
+			       struct update_params *params,
+			       unsigned int *param_count,
+			       size_t *max_param_size,
+			       const struct lu_fid *fid,
+			       const struct lu_attr *attr,
+			       const struct dt_allocation_hint *hint,
+			       struct dt_object_format *dof);
+int update_records_attr_set_pack(const struct lu_env *env,
+				 struct update_ops *ops,
+				 unsigned int *op_count,
+				 size_t *max_ops_size,
+				 struct update_params *params,
+				 unsigned int *param_count,
+				 size_t *max_param_size,
+				 const struct lu_fid *fid,
+				 const struct lu_attr *attr);
+int update_records_ref_add_pack(const struct lu_env *env,
+				struct update_ops *ops,
+				unsigned int *op_count,
+				size_t *max_ops_size,
+				struct update_params *params,
+				unsigned int *param_count,
+				size_t *max_param_size,
+				const struct lu_fid *fid);
+int update_records_ref_del_pack(const struct lu_env *env,
+				struct update_ops *ops,
+				unsigned int *op_count,
+				size_t *max_ops_size,
+				struct update_params *params,
+				unsigned int *param_count,
+				size_t *max_param_size,
+				const struct lu_fid *fid);
+int update_records_destroy_pack(const struct lu_env *env,
+				struct update_ops *ops, unsigned int *op_count,
+				size_t *max_ops_size,
+				struct update_params *params,
+				unsigned int *param_count,
+				size_t *max_param_size,
+				const struct lu_fid *fid);
+int update_records_index_insert_pack(const struct lu_env *env,
+				     struct update_ops *ops,
+				     unsigned int *op_count,
+				     size_t *max_ops_size,
+				     struct update_params *params,
+				     unsigned int *param_count,
+				     size_t *max_param_size,
+				     const struct lu_fid *fid,
+				     const struct dt_rec *rec,
+				     const struct dt_key *key);
+int update_records_index_delete_pack(const struct lu_env *env,
+				     struct update_ops *ops,
+				     unsigned int *op_count,
+				     size_t *max_ops_size,
+				     struct update_params *params,
+				     unsigned int *param_count,
+				     size_t *max_param_size,
+				     const struct lu_fid *fid,
+				     const struct dt_key *key);
+int update_records_xattr_set_pack(const struct lu_env *env,
+				  struct update_ops *ops,
+				  unsigned int *op_count,
+				  size_t *max_ops_size,
+				  struct update_params *params,
+				  unsigned int *param_count,
+				  size_t *max_param_size,
+				  const struct lu_fid *fid,
+				  const struct lu_buf *buf, const char *name,
+				  __u32 flag);
+int update_records_xattr_del_pack(const struct lu_env *env,
+				  struct update_ops *ops,
+				  unsigned int *op_count,
+				  size_t *max_ops_size,
+				  struct update_params *params,
+				  unsigned int *param_count,
+				  size_t *max_param_size,
+				  const struct lu_fid *fid,
+				  const char *name);
+int update_records_write_pack(const struct lu_env *env,
+			      struct update_ops *ops,
+			      unsigned int *op_count,
+			      size_t *max_ops_size,
+			      struct update_params *params,
+			      unsigned int *param_count,
+			      size_t *max_param_size,
+			      const struct lu_fid *fid,
+			      const struct lu_buf *buf,
+			      __u64 pos);
+int update_records_punch_pack(const struct lu_env *env,
+			      struct update_ops *ops,
+			      unsigned int *op_count,
+			      size_t *max_ops_size,
+			      struct update_params *params,
+			      unsigned int *param_count,
+			      size_t *max_param_size,
+			      const struct lu_fid *fid,
+			      __u64 start, __u64 end);
+int update_records_noop_pack(const struct lu_env *env,
+			     struct update_ops *ops,
+			     unsigned int *op_count,
+			     size_t *max_ops_size,
+			     struct update_params *params,
+			     unsigned int *param_count,
+			     size_t *max_param_size,
+			     const struct lu_fid *fid);
+
+int tur_update_records_extend(struct thandle_update_records *tur,
+			      size_t new_size);
+int tur_update_params_extend(struct thandle_update_records *tur,
+			     size_t new_size);
+int tur_update_extend(struct thandle_update_records *tur,
+		      size_t new_op_size, size_t new_param_size);
+
+#define update_record_pack(name, th, ...)				\
+({									\
+	struct top_thandle *top_th;					\
+	struct top_multiple_thandle *tmt;				\
+	struct thandle_update_records *tur;				\
+	struct llog_update_record     *lur;				\
+	size_t		avail_param_size;				\
+	size_t		avail_op_size;					\
+	int		ret;						\
+									\
+	while (1) {							\
+		top_th = container_of(th, struct top_thandle, tt_super);\
+		tmt = top_th->tt_multiple_thandle;			\
+		tur = tmt->tmt_update_records;				\
+		lur = tur->tur_update_records;				\
+		avail_param_size = tur->tur_update_params_buf_size -	\
+			     update_params_size(tur->tur_update_params,	\
+					tur->tur_update_param_count);	\
+		avail_op_size = tur->tur_update_records_buf_size -	\
+				llog_update_record_size(lur);		\
+		ret = update_records_##name##_pack(env,			\
+					  &lur->lur_update_rec.ur_ops,	\
+				  &lur->lur_update_rec.ur_update_count,	\
+				  &avail_op_size,			\
+				  tur->tur_update_params,		\
+				  &tur->tur_update_param_count,		\
+				  &avail_param_size, __VA_ARGS__);	\
+		if (ret == -E2BIG) {					\
+			ret = tur_update_extend(tur, avail_op_size,	\
+						   avail_param_size);	\
+			if (ret != 0)					\
+				break;					\
+			continue;					\
+		} else {						\
+			break;						\
+		}							\
+	}								\
+	ret;								\
+})
+
+#define update_record_size(env, name, th, ...)				\
+({									\
+	struct top_thandle *top_th;					\
+	struct top_multiple_thandle *tmt;				\
+									\
+	top_th = container_of(th, struct top_thandle, tt_super);	\
+									\
+	LASSERT(top_th->tt_multiple_thandle != NULL);			\
+	tmt = top_th->tt_multiple_thandle;				\
+	tmt->tmt_record_size +=						\
+		update_records_##name##_size(env, __VA_ARGS__);		\
+})
+#endif