#include <lu_target.h>
#include <lustre_update.h>
#include <obd.h>
+#include <obd_class.h>
+
+#define OUT_UPDATE_BUFFER_SIZE_ADD 4096
+#define OUT_UPDATE_BUFFER_SIZE_MAX (256 * 4096) /* 1MB update size now */
struct dt_update_request*
out_find_update(struct thandle_update *tu, struct dt_device *dt_dev)
}
EXPORT_SYMBOL(out_find_update);
-void out_destroy_update_req(struct dt_update_request *dt_update)
+static struct object_update_request *object_update_request_alloc(size_t size)
+{
+ struct object_update_request *ourq;
+
+ OBD_ALLOC_LARGE(ourq, size);
+ if (ourq == NULL)
+ RETURN(ERR_PTR(-ENOMEM));
+
+ ourq->ourq_magic = UPDATE_REQUEST_MAGIC;
+ ourq->ourq_count = 0;
+
+ RETURN(ourq);
+}
+
+static void object_update_request_free(struct object_update_request *ourq,
+ size_t ourq_size)
+{
+ if (ourq != NULL)
+ OBD_FREE_LARGE(ourq, ourq_size);
+}
+
+void dt_update_request_destroy(struct dt_update_request *dt_update)
{
if (dt_update == NULL)
return;
list_del(&dt_update->dur_list);
- if (dt_update->dur_req != NULL)
- OBD_FREE_LARGE(dt_update->dur_req, dt_update->dur_req_len);
+ object_update_request_free(dt_update->dur_buf.ub_req,
+ dt_update->dur_buf.ub_req_size);
OBD_FREE_PTR(dt_update);
- return;
}
-EXPORT_SYMBOL(out_destroy_update_req);
+EXPORT_SYMBOL(dt_update_request_destroy);
-struct dt_update_request *out_create_update_req(struct dt_device *dt)
+/**
+ * Allocate and initialize dt_update_request
+ *
+ * dt_update_request is being used to track updates being executed on
+ * this dt_device(OSD or OSP). The update buffer will be 8k initially,
+ * and increased if needed.
+ *
+ * \param [in] dt dt device
+ *
+ * \retval dt_update_request being allocated if succeed
+ * \retval ERR_PTR(errno) if failed
+ */
+struct dt_update_request *dt_update_request_create(struct dt_device *dt)
{
struct dt_update_request *dt_update;
+ struct object_update_request *ourq;
OBD_ALLOC_PTR(dt_update);
if (!dt_update)
return ERR_PTR(-ENOMEM);
- OBD_ALLOC_LARGE(dt_update->dur_req, OUT_UPDATE_INIT_BUFFER_SIZE);
- if (dt_update->dur_req == NULL) {
+ ourq = object_update_request_alloc(OUT_UPDATE_INIT_BUFFER_SIZE);
+ if (IS_ERR(ourq)) {
OBD_FREE_PTR(dt_update);
- return ERR_PTR(-ENOMEM);
+ return ERR_CAST(ourq);
}
- dt_update->dur_req_len = OUT_UPDATE_INIT_BUFFER_SIZE;
+ dt_update->dur_buf.ub_req = ourq;
+ dt_update->dur_buf.ub_req_size = OUT_UPDATE_INIT_BUFFER_SIZE;
+
INIT_LIST_HEAD(&dt_update->dur_list);
dt_update->dur_dt = dt;
dt_update->dur_batchid = 0;
- dt_update->dur_req->ourq_magic = UPDATE_REQUEST_MAGIC;
- dt_update->dur_req->ourq_count = 0;
INIT_LIST_HEAD(&dt_update->dur_cb_items);
return dt_update;
}
-EXPORT_SYMBOL(out_create_update_req);
+EXPORT_SYMBOL(dt_update_request_create);
/**
+ * Find or create dt_update_request.
+ *
* Find or create one loc in th_dev/dev_obj_update for the update,
* Because only one thread can access this thandle, no need
* lock now.
+ *
+ * \param[in] th transaction handle
+ * \param[in] dt lookup update request by dt_object
+ *
+ * \retval pointer of dt_update_request if it can be created
+ * or found.
+ * \retval ERR_PTR(errno) if it can not be created or found.
*/
-struct dt_update_request *out_find_create_update_loc(struct thandle *th,
- struct dt_object *dt)
+struct dt_update_request *
+dt_update_request_find_or_create(struct thandle *th, struct dt_object *dt)
{
struct dt_device *dt_dev = lu2dt_dev(dt->do_lu.lo_dev);
struct thandle_update *tu = th->th_update;
if (update != NULL)
RETURN(update);
- update = out_create_update_req(dt_dev);
+ update = dt_update_request_create(dt_dev);
if (IS_ERR(update))
RETURN(update);
RETURN(update);
}
-EXPORT_SYMBOL(out_find_create_update_loc);
+EXPORT_SYMBOL(dt_update_request_find_or_create);
+/**
+ * Prepare update request.
+ *
+ * Prepare OUT update ptlrpc request, and the request usually includes
+ * all of updates (stored in \param ureq) from one operation.
+ *
+ * \param[in] env execution environment
+ * \param[in] imp import on which ptlrpc request will be sent
+ * \param[in] ureq hold all of updates which will be packed into the req
+ * \param[in] reqp request to be created
+ *
+ * \retval 0 if preparation succeeds.
+ * \retval negative errno if preparation fails.
+ */
int out_prep_update_req(const struct lu_env *env, struct obd_import *imp,
const struct object_update_request *ureq,
struct ptlrpc_request **reqp)
}
EXPORT_SYMBOL(out_prep_update_req);
+/**
+ * Send update RPC.
+ *
+ * Send update request to the remote MDT synchronously.
+ *
+ * \param[in] env execution environment
+ * \param[in] imp import on which ptlrpc request will be sent
+ * \param[in] dt_update hold all of updates which will be packed into the req
+ * \param[in] reqp request to be created
+ *
+ * \retval 0 if RPC succeeds.
+ * \retval negative errno if RPC fails.
+ */
int out_remote_sync(const struct lu_env *env, struct obd_import *imp,
struct dt_update_request *dt_update,
struct ptlrpc_request **reqp)
int rc;
ENTRY;
- rc = out_prep_update_req(env, imp, dt_update->dur_req, &req);
+ rc = out_prep_update_req(env, imp, dt_update->dur_buf.ub_req, &req);
if (rc != 0)
RETURN(rc);
}
EXPORT_SYMBOL(out_remote_sync);
-static int out_resize_update_req(struct dt_update_request *dt_update,
- int new_size)
+/**
+ * resize update buffer
+ *
+ * Extend the update buffer by new_size.
+ *
+ * \param[in] ubuf update buffer to be extended
+ * \param[in] new_size new size of the update buffer
+ *
+ * \retval 0 if extending succeeds.
+ * \retval negative errno if extending fails.
+ */
+static int update_buffer_resize(struct update_buffer *ubuf, size_t new_size)
{
struct object_update_request *ureq;
- LASSERT(new_size > dt_update->dur_req_len);
-
- CDEBUG(D_INFO, "%s: resize update_size from %d to %d\n",
- dt_update->dur_dt->dd_lu_dev.ld_obd->obd_name,
- dt_update->dur_req_len, new_size);
+ if (new_size > ubuf->ub_req_size)
+ return 0;
OBD_ALLOC_LARGE(ureq, new_size);
if (ureq == NULL)
return -ENOMEM;
- memcpy(ureq, dt_update->dur_req,
- object_update_request_size(dt_update->dur_req));
+ memcpy(ureq, ubuf->ub_req, ubuf->ub_req_size);
- OBD_FREE_LARGE(dt_update->dur_req, dt_update->dur_req_len);
+ OBD_FREE_LARGE(ubuf->ub_req, ubuf->ub_req_size);
- dt_update->dur_req = ureq;
- dt_update->dur_req_len = new_size;
+ ubuf->ub_req = ureq;
+ ubuf->ub_req_size = new_size;
return 0;
}
-#define OUT_UPDATE_BUFFER_SIZE_ADD 4096
-#define OUT_UPDATE_BUFFER_SIZE_MAX (64 * 4096) /* 64KB update size now */
/**
- * Insert the update into the th_bufs for the device.
- */
-
-int out_insert_update(const struct lu_env *env,
- struct dt_update_request *update, int op,
- const struct lu_fid *fid, int params_count, int *lens,
- const char **bufs)
+ * Pack the header of object_update_request
+ *
+ * Packs updates into the update_buffer header, which will either be sent to
+ * the remote MDT or stored in the local update log. The maximum update buffer
+ * size is 1MB for now.
+ *
+ * \param[in] env execution environment
+ * \param[in] ubuf update bufer which it will pack the update in
+ * \param[in] op update operation
+ * \param[in] fid object FID for this update
+ * \param[in] param_count parameters count for this update
+ * \param[in] lens each parameters length of this update
+ * \param[in] batchid batchid(transaction no) of this update
+ *
+ * \retval 0 pack update succeed.
+ * negative errno pack update failed.
+ **/
+static struct object_update*
+out_update_header_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, __u64 batchid)
{
- struct object_update_request *ureq = update->dur_req;
- int ureq_len;
+ struct object_update_request *ureq = ubuf->ub_req;
+ size_t ureq_size = ubuf->ub_req_size;
struct object_update *obj_update;
struct object_update_param *param;
- int update_length;
+ size_t update_size;
int rc = 0;
- char *ptr;
- int i;
+ unsigned int i;
ENTRY;
/* Check update size to make sure it can fit into the buffer */
- ureq_len = object_update_request_size(ureq);
- update_length = offsetof(struct object_update, ou_params[0]);
+ ureq_size = object_update_request_size(ureq);
+ update_size = offsetof(struct object_update, ou_params[0]);
for (i = 0; i < params_count; i++)
- update_length += cfs_size_round(lens[i] + sizeof(*param));
+ update_size += cfs_size_round(param_sizes[i] + sizeof(*param));
- if (unlikely(cfs_size_round(ureq_len + update_length) >
- update->dur_req_len)) {
- int new_size = update->dur_req_len;
+ if (unlikely(cfs_size_round(ureq_size + update_size) >
+ ubuf->ub_req_size)) {
+ size_t new_size = ubuf->ub_req_size;
/* enlarge object update request size */
while (new_size <
- cfs_size_round(ureq_len + update_length))
+ cfs_size_round(ureq_size + update_size))
new_size += OUT_UPDATE_BUFFER_SIZE_ADD;
if (new_size >= OUT_UPDATE_BUFFER_SIZE_MAX)
- RETURN(-E2BIG);
+ RETURN(ERR_PTR(-E2BIG));
- rc = out_resize_update_req(update, new_size);
- if (rc != 0)
- RETURN(rc);
+ rc = update_buffer_resize(ubuf, new_size);
+ if (rc < 0)
+ RETURN(ERR_PTR(rc));
- ureq = update->dur_req;
+ ureq = ubuf->ub_req;
}
/* fill the update into the update buffer */
- obj_update = (struct object_update *)((char *)ureq + ureq_len);
+ obj_update = (struct object_update *)((char *)ureq + ureq_size);
obj_update->ou_fid = *fid;
obj_update->ou_type = op;
obj_update->ou_params_count = (__u16)params_count;
- obj_update->ou_batchid = update->dur_batchid;
+ obj_update->ou_batchid = batchid;
param = &obj_update->ou_params[0];
for (i = 0; i < params_count; i++) {
- param->oup_len = lens[i];
- ptr = ¶m->oup_buf[0];
- memcpy(¶m->oup_buf[0], bufs[i], lens[i]);
+ param->oup_len = param_sizes[i];
param = (struct object_update_param *)((char *)param +
object_update_param_size(param));
}
-
ureq->ourq_count++;
- CDEBUG(D_INFO, "%s: %p "DFID" idx %d: op %d params %d:%d\n",
- update->dur_dt->dd_lu_dev.ld_obd->obd_name, ureq, PFID(fid),
- ureq->ourq_count, op, params_count, ureq_len + update_length);
+ CDEBUG(D_INFO, "%p "DFID" idx %u: op %d params %d:%d\n",
+ ureq, PFID(fid), ureq->ourq_count, op, params_count,
+ (int)update_size);
- RETURN(rc);
+ RETURN(obj_update);
+}
+
+/**
+ * Packs one update into the update_buffer.
+ *
+ * \param[in] env execution environment
+ * \param[in] ubuf bufer where update will be packed
+ * \param[in] op update operation (enum update_type)
+ * \param[in] fid object FID for this update
+ * \param[in] param_count number of parameters for this update
+ * \param[in] param_sizes array of parameters length of this update
+ * \param[in] param_bufs parameter buffers
+ * \param[in] batchid transaction no of this update, plus mdt_index, which
+ * will be globally unique
+ *
+ * \retval = 0 if updates packing succeeds
+ * \retval negative errno if updates packing fails
+ **/
+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 **param_bufs, __u64 batchid)
+{
+ struct object_update *update;
+ struct object_update_param *param;
+ unsigned int i;
+ ENTRY;
+
+ update = out_update_header_pack(env, ubuf, op, fid, params_count,
+ param_sizes, batchid);
+ if (IS_ERR(update))
+ RETURN(PTR_ERR(update));
+
+ param = &update->ou_params[0];
+ for (i = 0; i < params_count; i++) {
+ memcpy(¶m->oup_buf[0], param_bufs[i], param_sizes[i]);
+ param = (struct object_update_param *)((char *)param +
+ object_update_param_size(param));
+ }
+
+ RETURN(0);
+}
+EXPORT_SYMBOL(out_update_pack);
+
+/**
+ * Pack various updates into the update_buffer.
+ *
+ * The following functions pack different updates into the update_buffer
+ * So parameters of these API is basically same as its correspondent OSD/OSP
+ * API, for detail description of these parameters see osd_handler.c or
+ * osp_md_object.c.
+ *
+ * \param[in] env execution environment
+ * \param[in] ubuf update buffer
+ * \param[in] fid fid of this object for the update
+ * \param[in] batchid batch id of this update
+ *
+ * \retval 0 if insertion succeeds.
+ * \retval negative errno if insertion fails.
+ */
+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)
+{
+ struct obdo *obdo;
+ __u16 sizes[2] = {sizeof(*obdo), 0};
+ int buf_count = 1;
+ const struct lu_fid *fid1 = NULL;
+ struct object_update *update;
+ ENTRY;
+
+ if (hint != NULL && hint->dah_parent) {
+ fid1 = lu_object_fid(&hint->dah_parent->do_lu);
+ sizes[1] = sizeof(*fid1);
+ buf_count++;
+ }
+
+ update = out_update_header_pack(env, ubuf, OUT_CREATE, fid,
+ buf_count, sizes, batchid);
+ if (IS_ERR(update))
+ RETURN(PTR_ERR(update));
+
+ obdo = object_update_param_get(update, 0, NULL);
+ obdo->o_valid = 0;
+ obdo_from_la(obdo, attr, attr->la_valid);
+ lustre_set_wire_obdo(NULL, obdo, obdo);
+ if (fid1 != NULL) {
+ struct lu_fid *fid;
+ fid = object_update_param_get(update, 1, NULL);
+ fid_cpu_to_le(fid, fid1);
+ }
+
+ RETURN(0);
+}
+EXPORT_SYMBOL(out_create_pack);
+
+int out_ref_del_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, __u64 batchid)
+{
+ return out_update_pack(env, ubuf, OUT_REF_DEL, fid, 0, NULL, NULL,
+ batchid);
+}
+EXPORT_SYMBOL(out_ref_del_pack);
+
+int out_ref_add_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, __u64 batchid)
+{
+ return out_update_pack(env, ubuf, OUT_REF_ADD, fid, 0, NULL, NULL,
+ batchid);
+}
+EXPORT_SYMBOL(out_ref_add_pack);
+
+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)
+{
+ struct object_update *update;
+ struct obdo *obdo;
+ __u16 size = sizeof(*obdo);
+ ENTRY;
+
+ update = out_update_header_pack(env, ubuf, OUT_ATTR_SET, fid, 1,
+ &size, batchid);
+ if (IS_ERR(update))
+ RETURN(PTR_ERR(update));
+
+ obdo = object_update_param_get(update, 0, NULL);
+ obdo->o_valid = 0;
+ obdo_from_la(obdo, attr, attr->la_valid);
+ lustre_set_wire_obdo(NULL, obdo, obdo);
+
+ RETURN(0);
+}
+EXPORT_SYMBOL(out_attr_set_pack);
+
+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)
+{
+ __u16 sizes[3] = {strlen(name) + 1, buf->lb_len, sizeof(flag)};
+ const void *bufs[3] = {(char *)name, (char *)buf->lb_buf,
+ (char *)&flag};
+
+ return out_update_pack(env, ubuf, OUT_XATTR_SET, fid,
+ ARRAY_SIZE(sizes), sizes, bufs, batchid);
+}
+EXPORT_SYMBOL(out_xattr_set_pack);
+
+int out_xattr_del_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, const char *name,
+ __u64 batchid)
+{
+ __u16 size = strlen(name) + 1;
+
+ return out_update_pack(env, ubuf, OUT_XATTR_DEL, fid, 1, &size,
+ (const void **)&name, batchid);
+}
+EXPORT_SYMBOL(out_xattr_del_pack);
+
+
+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)
+{
+ struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
+ struct lu_fid rec_fid;
+ __u32 type = cpu_to_le32(rec1->rec_type);
+ __u16 sizes[3] = { strlen((char *)key) + 1,
+ sizeof(rec_fid),
+ sizeof(type) };
+ const void *bufs[3] = { (char *)key,
+ (char *)&rec_fid,
+ (char *)&type };
+
+ fid_cpu_to_le(&rec_fid, rec1->rec_fid);
+
+ return out_update_pack(env, ubuf, OUT_INDEX_INSERT, fid,
+ ARRAY_SIZE(sizes), sizes, bufs, batchid);
+}
+EXPORT_SYMBOL(out_index_insert_pack);
+
+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)
+{
+ __u16 size = strlen((char *)key) + 1;
+ const void *buf = key;
+
+ return out_update_pack(env, ubuf, OUT_INDEX_DELETE, fid, 1, &size,
+ &buf, batchid);
+}
+EXPORT_SYMBOL(out_index_delete_pack);
+
+int out_object_destroy_pack(const struct lu_env *env,
+ struct update_buffer *ubuf,
+ const struct lu_fid *fid, __u64 batchid)
+{
+ return out_update_pack(env, ubuf, OUT_DESTROY, fid, 0, NULL, NULL,
+ batchid);
+}
+EXPORT_SYMBOL(out_object_destroy_pack);
+
+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)
+{
+ __u16 sizes[2] = {buf->lb_len, sizeof(pos)};
+ const void *bufs[2] = {(char *)buf->lb_buf, (char *)&pos};
+ int rc;
+
+ pos = cpu_to_le64(pos);
+
+ rc = out_update_pack(env, ubuf, OUT_WRITE, fid, ARRAY_SIZE(sizes),
+ sizes, bufs, batchid);
+ return rc;
+}
+EXPORT_SYMBOL(out_write_pack);
+
+/**
+ * Pack various readonly updates into the update_buffer.
+ *
+ * The following update funcs are only used by read-only ops, lookup,
+ * getattr etc, so it does not need transaction here. Currently they
+ * are only used by OSP.
+ *
+ * \param[in] env execution environment
+ * \param[in] fid fid of this object for the update
+ * \param[in] ubuf update buffer
+ *
+ * \retval 0 if packing succeeds.
+ * \retval negative errno if packing fails.
+ */
+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)
+{
+ const void *name = key;
+ __u16 size = strlen((char *)name) + 1;
+
+ return out_update_pack(env, ubuf, OUT_INDEX_LOOKUP, fid, 1, &size,
+ &name, 0);
+}
+EXPORT_SYMBOL(out_index_lookup_pack);
+
+int out_attr_get_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid)
+{
+ return out_update_pack(env, ubuf, OUT_ATTR_GET, fid, 0, NULL, NULL, 0);
+}
+EXPORT_SYMBOL(out_attr_get_pack);
+
+int out_xattr_get_pack(const struct lu_env *env, struct update_buffer *ubuf,
+ const struct lu_fid *fid, const char *name)
+{
+ __u16 size;
+
+ LASSERT(name != NULL);
+ size = strlen(name) + 1;
+ return out_update_pack(env, ubuf, OUT_XATTR_GET, fid, 1, &size,
+ (const void **)&name, 0);
}
-EXPORT_SYMBOL(out_insert_update);
+EXPORT_SYMBOL(out_xattr_get_pack);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff