* 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 UPDATE_BUFFER_SIZE 4096
-struct update_request {
- struct dt_device *ur_dt;
- cfs_list_t ur_list; /* attached itself to thandle */
- int ur_flags;
- int ur_rc; /* request result */
- int ur_batchid; /* Current batch(trans) id */
- struct update_buf *ur_buf; /* Holding the update req */
-};
-
-static inline unsigned long update_size(struct update *update)
-{
- unsigned long size;
- 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]);
-
- return size;
-}
-
-static inline void *update_param_buf(struct update *update, int index,
- int *size)
-{
- int i;
- void *ptr;
-
- if (index >= UPDATE_BUF_COUNT)
- return NULL;
+#define OUT_UPDATE_INIT_BUFFER_SIZE 4096
+#define OUT_UPDATE_REPLY_SIZE 8192
- 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]);
- }
-
- if (size != NULL)
- *size = update->u_lens[index];
+struct dt_key;
+struct dt_rec;
- return ptr;
-}
+struct update_buffer {
+ struct object_update_request *ub_req;
+ size_t ub_req_size;
+};
-static inline unsigned long update_buf_size(struct update_buf *buf)
-{
- unsigned long size;
- int i = 0;
+#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;
+};
- size = cfs_size_round(offsetof(struct update_buf, ub_bufs[0]));
- for (i = 0; i < buf->ub_count; i++) {
- struct update *update;
+struct sub_thandle {
+ /* point to the osd/osp_thandle */
+ struct thandle *st_sub_th;
+ struct list_head st_sub_list;
+};
- update = (struct update *)((char *)buf + size);
- size += update_size(update);
- }
- LASSERT(size <= UPDATE_BUFFER_SIZE);
- return size;
-}
+/**
+ * Tracking the updates being executed on this dt_device.
+ */
+struct dt_update_request {
+ struct dt_device *dur_dt;
+ /* attached itself to thandle */
+ int dur_flags;
+ /* update request result */
+ int dur_rc;
+ /* Current batch(transaction) id */
+ __u64 dur_batchid;
+ /* Holding object updates */
+ struct update_buffer dur_buf;
+ struct list_head dur_cb_items;
+};
-static inline void *update_buf_get(struct update_buf *buf, int index, int *size)
+static inline void
+*object_update_param_get(const struct object_update *update, size_t index,
+ size_t *size)
{
- int count = buf->ub_count;
- void *ptr;
- int i = 0;
+ const struct object_update_param *param;
+ size_t i;
- if (index >= count)
+ if (index >= update->ou_params_count)
return NULL;
- ptr = (char *)buf + cfs_size_round(offsetof(struct update_buf,
- ub_bufs[0]));
+ param = &update->ou_params[0];
for (i = 0; i < index; i++)
- ptr += update_size((struct update *)ptr);
+ param = (struct object_update_param *)((char *)param +
+ object_update_param_size(param));
if (size != NULL)
- *size = update_size((struct update *)ptr);
+ *size = param->oup_len;
- return ptr;
-}
+ if (param->oup_len == 0)
+ return NULL;
-static inline void update_init_reply_buf(struct update_reply *reply, int count)
-{
- reply->ur_version = UPDATE_REPLY_V1;
- reply->ur_count = count;
+ return (void *)¶m->oup_buf[0];
}
-static inline void *update_get_buf_internal(struct update_reply *reply,
- int index, int *size)
+static inline unsigned long
+object_update_request_size(const struct object_update_request *our)
{
- char *ptr;
- int count = reply->ur_count;
- int i;
+ unsigned long size;
+ size_t i = 0;
- if (index >= count)
- return NULL;
+ size = offsetof(struct object_update_request, ourq_updates[0]);
+ for (i = 0; i < our->ourq_count; i++) {
+ struct object_update *update;
- 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]);
+ update = (struct object_update *)((char *)our + size);
+ size += object_update_size(update);
}
+ return size;
+}
- if (size != NULL)
- *size = reply->ur_lens[index];
-
- return ptr;
+static inline void
+object_update_reply_init(struct object_update_reply *reply, size_t count)
+{
+ reply->ourp_magic = UPDATE_REPLY_MAGIC;
+ reply->ourp_count = count;
}
-static inline void update_insert_reply(struct update_reply *reply, void *data,
- int data_len, int index, int rc)
+static inline void
+object_update_result_insert(struct object_update_reply *reply,
+ void *data, size_t data_len, size_t index,
+ int rc)
{
+ struct object_update_result *update_result;
char *ptr;
- ptr = update_get_buf_internal(reply, index, NULL);
- LASSERT(ptr != NULL);
+ update_result = object_update_result_get(reply, index, NULL);
+ LASSERT(update_result != NULL);
- *(int *)ptr = cpu_to_le32(rc);
- ptr += sizeof(int);
+ update_result->our_rc = ptlrpc_status_hton(rc);
if (data_len > 0) {
LASSERT(data != NULL);
+ ptr = (char *)update_result +
+ cfs_size_round(sizeof(struct object_update_reply));
+ update_result->our_datalen = data_len;
memcpy(ptr, data, data_len);
}
- reply->ur_lens[index] = data_len + sizeof(int);
+
+ reply->ourp_lens[index] = cfs_size_round(data_len +
+ sizeof(struct object_update_result));
}
-static inline int update_get_reply_buf(struct update_reply *reply, void **buf,
- int index)
+static inline int
+object_update_result_data_get(const struct object_update_reply *reply,
+ struct lu_buf *lbuf, size_t index)
{
- char *ptr;
- int size = 0;
- int result;
-
- ptr = update_get_buf_internal(reply, index, &size);
- result = *(int *)ptr;
-
+ 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 0;
}
-static inline int update_get_reply_result(struct update_reply *reply,
- void **buf, int index)
+static inline void update_inc_batchid(struct dt_update_request *update)
{
- void *ptr;
- int size;
+ update->dur_batchid++;
+}
- ptr = update_get_buf_internal(reply, index, &size);
- LASSERT(ptr != NULL && size > sizeof(int));
- return *(int *)ptr;
+/* 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));
}
-#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_thandle_destroy(struct top_thandle *top_th);
+#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff