* GPL HEADER END
*/
/*
- * Copyright (c) 2013, Intel Corporation.
+ * Copyright (c) 2013, 2014, Intel Corporation.
*/
/*
* lustre/include/lustre_update.h
#ifndef _LUSTRE_UPDATE_H
#define _LUSTRE_UPDATE_H
#include <lustre_net.h>
+#include <dt_object.h>
-#define OUT_UPDATE_INIT_BUFFER_SIZE 8192
-#define OUT_UPDATE_REPLY_SIZE 8192
+#define OUT_UPDATE_INIT_BUFFER_SIZE 4096
+#define OUT_UPDATE_REPLY_SIZE 8192
+
+struct dt_key;
+struct dt_rec;
+
+struct update_buffer {
+ struct object_update_request *ub_req;
+ size_t ub_req_size;
+};
+
+#define TOP_THANDLE_MAGIC 0x20140917
+/* {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;
+ __u32 tt_magic;
+ /* The master sub transaction. */
+ struct thandle *tt_master_sub_thandle;
+
+ /* Other sub thandle will be listed here. */
+ struct list_head tt_sub_thandle_list;
+};
+
+struct sub_thandle {
+ /* point to the osd/osp_thandle */
+ struct thandle *st_sub_th;
+ struct list_head st_sub_list;
+};
+
+/**
+ * Tracking the updates being executed on this dt_device.
+ */
struct dt_update_request {
struct dt_device *dur_dt;
/* attached itself to thandle */
- struct list_head dur_list;
int dur_flags;
/* update request result */
int dur_rc;
/* Current batch(transaction) id */
__u64 dur_batchid;
- /* Holding the update req */
- struct object_update_request *dur_req;
- int dur_req_len;
+ /* Holding object updates */
+ struct update_buffer dur_buf;
struct list_head dur_cb_items;
};
-static inline unsigned long
-object_update_param_size(const struct object_update_param *param)
-{
- return cfs_size_round(sizeof(*param) + param->oup_len);
-}
-
-static inline unsigned long
-object_update_size(const struct object_update *update)
-{
- const struct object_update_param *param;
- unsigned long size;
- size_t i;
-
- size = offsetof(struct object_update, ou_params[0]);
- for (i = 0; i < update->ou_params_count; i++) {
- param = (struct object_update_param *)((char *)update + size);
- size += object_update_param_size(param);
- }
-
- return size;
-}
-
static inline void
*object_update_param_get(const struct object_update *update, size_t index,
size_t *size)
return size;
}
-static inline struct object_update
-*object_update_request_get(const struct object_update_request *our,
- size_t index, size_t *size)
-{
- void *ptr;
- size_t i;
-
- if (index >= our->ourq_count)
- return NULL;
-
- ptr = (char *)our + offsetof(struct object_update_request,
- ourq_updates[0]);
- for (i = 0; i < index; i++)
- ptr += object_update_size((struct object_update *)ptr);
-
- if (size != NULL)
- *size = object_update_size((struct object_update *)ptr);
-
- return ptr;
-}
-
static inline void
object_update_reply_init(struct object_update_reply *reply, size_t count)
{
reply->ourp_count = count;
}
-static inline struct object_update_result
-*object_update_result_get(const struct object_update_reply *reply,
- size_t index, size_t *size)
-{
- char *ptr;
- size_t count = reply->ourp_count;
- size_t i;
-
- if (index >= count)
- return NULL;
-
- ptr = (char *)reply +
- cfs_size_round(offsetof(struct object_update_reply,
- ourp_lens[count]));
- for (i = 0; i < index; i++) {
- LASSERT(reply->ourp_lens[i] > 0);
- ptr += cfs_size_round(reply->ourp_lens[i]);
- }
-
- if (size != NULL)
- *size = reply->ourp_lens[index];
-
- return (struct object_update_result *)ptr;
-}
-
static inline void
object_update_result_insert(struct object_update_reply *reply,
void *data, size_t data_len, size_t index,
update->dur_batchid++;
}
+/* target/out_lib.c */
+int out_update_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ enum update_type op, const struct lu_fid *fid,
+ int params_count, __u16 *param_sizes, const void **bufs,
+ __u64 batchid);
+int out_create_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, struct lu_attr *attr,
+ struct dt_allocation_hint *hint,
+ struct dt_object_format *dof, __u64 batchid);
+int out_object_destroy_pack(const struct lu_env *env,
+ struct update_buffer *ubuf,
+ const struct lu_fid *fid, __u64 batchid);
+int out_index_delete_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, const struct dt_key *key,
+ __u64 batchid);
+int out_index_insert_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, const struct dt_rec *rec,
+ const struct dt_key *key, __u64 batchid);
+int out_xattr_set_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, const struct lu_buf *buf,
+ const char *name, int flag, __u64 batchid);
+int out_xattr_del_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, const char *name,
+ __u64 batchid);
+int out_attr_set_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, const struct lu_attr *attr,
+ __u64 batchid);
+int out_ref_add_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, __u64 batchid);
+int out_ref_del_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, __u64 batchid);
+int out_write_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, const struct lu_buf *buf,
+ loff_t pos, __u64 batchid);
+int out_attr_get_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid);
+int out_index_lookup_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ 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 update_buffer *ubuf,
+ const struct lu_fid *fid, const char *name);
+
+/* 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));
+}
+
+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_thandle_destroy(struct top_thandle *top_th);
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff