/*
* last_rcvd & last_committed update callbacks
*/
-static int mdt_last_rcvd_update(struct mdt_thread_info *mti,
- struct thandle *th)
-{
- struct mdt_device *mdt = mti->mti_mdt;
- struct ptlrpc_request *req = mdt_info_req(mti);
- struct tg_export_data *ted;
- struct lsd_client_data *lcd;
- loff_t off;
- int err;
- __s32 rc = th->th_result;
-
- ENTRY;
- LASSERT(req);
- LASSERT(req->rq_export);
- LASSERT(mdt);
- ted = &req->rq_export->exp_target_data;
- LASSERT(ted);
-
- mutex_lock(&ted->ted_lcd_lock);
- lcd = ted->ted_lcd;
- /* if the export has already been disconnected, we have no last_rcvd
- * slot, update server data with latest transno then */
- if (lcd == NULL) {
- mutex_unlock(&ted->ted_lcd_lock);
- CWARN("commit transaction for disconnected client %s: rc %d\n",
- req->rq_export->exp_client_uuid.uuid, rc);
- err = tgt_server_data_write(mti->mti_env, &mdt->mdt_lut, th);
- RETURN(err);
- }
-
- off = ted->ted_lr_off;
- LASSERT(ergo(mti->mti_transno == 0, rc != 0));
- if (lustre_msg_get_opc(req->rq_reqmsg) == MDS_CLOSE ||
- lustre_msg_get_opc(req->rq_reqmsg) == MDS_DONE_WRITING) {
- if (mti->mti_transno != 0) {
- if (lcd->lcd_last_close_transno > mti->mti_transno) {
- CERROR("Trying to overwrite bigger transno:"
- "on-disk: "LPU64", new: "LPU64" "
- "replay: %d. see LU-617.\n",
- lcd->lcd_last_close_transno,
- mti->mti_transno, req_is_replay(req));
- if (req_is_replay(req)) {
- spin_lock(&req->rq_export->exp_lock);
- req->rq_export->exp_vbr_failed = 1;
- spin_unlock(&req->rq_export->exp_lock);
- }
- mutex_unlock(&ted->ted_lcd_lock);
- RETURN(req_is_replay(req) ? -EOVERFLOW : 0);
- }
- lcd->lcd_last_close_transno = mti->mti_transno;
- }
- lcd->lcd_last_close_xid = req->rq_xid;
- lcd->lcd_last_close_result = rc;
- } else {
- /* VBR: save versions in last_rcvd for reconstruct. */
- __u64 *pre_versions = lustre_msg_get_versions(req->rq_repmsg);
- if (pre_versions) {
- lcd->lcd_pre_versions[0] = pre_versions[0];
- lcd->lcd_pre_versions[1] = pre_versions[1];
- lcd->lcd_pre_versions[2] = pre_versions[2];
- lcd->lcd_pre_versions[3] = pre_versions[3];
- }
- if (mti->mti_transno != 0) {
- if (lcd->lcd_last_transno > mti->mti_transno) {
- CERROR("Trying to overwrite bigger transno:"
- "on-disk: "LPU64", new: "LPU64" "
- "replay: %d. see LU-617.\n",
- lcd->lcd_last_transno,
- mti->mti_transno, req_is_replay(req));
- if (req_is_replay(req)) {
- spin_lock(&req->rq_export->exp_lock);
- req->rq_export->exp_vbr_failed = 1;
- spin_unlock(&req->rq_export->exp_lock);
- }
- mutex_unlock(&ted->ted_lcd_lock);
- RETURN(req_is_replay(req) ? -EOVERFLOW : 0);
- }
- lcd->lcd_last_transno = mti->mti_transno;
- }
- lcd->lcd_last_xid = req->rq_xid;
- lcd->lcd_last_result = rc;
- /*XXX: save intent_disposition in mdt_thread_info?
- * also there is bug - intent_dispostion is __u64,
- * see struct ldlm_reply->lock_policy_res1; */
- lcd->lcd_last_data = mti->mti_opdata;
- }
-
- if (exp_connect_flags(mti->mti_exp) & OBD_CONNECT_LIGHTWEIGHT) {
- /* Although lightweight (LW) connections have no slot in
- * last_rcvd, we still want to maintain the in-memory
- * lsd_client_data structure in order to properly handle reply
- * reconstruction. */
- struct lu_target *tg = &mdt->mdt_lut;
- bool update = false;
-
- mutex_unlock(&ted->ted_lcd_lock);
- err = 0;
-
- /* All operations performed by LW clients are synchronous and
- * we store the committed transno in the last_rcvd header */
- spin_lock(&tg->lut_translock);
- if (mti->mti_transno > tg->lut_lsd.lsd_last_transno) {
- tg->lut_lsd.lsd_last_transno = mti->mti_transno;
- update = true;
- }
- spin_unlock(&tg->lut_translock);
-
- if (update)
- err = tgt_server_data_write(mti->mti_env, tg, th);
- } else if (off <= 0) {
- CERROR("%s: client idx %d has offset %lld\n",
- mdt_obd_name(mdt), ted->ted_lr_idx, off);
- mutex_unlock(&ted->ted_lcd_lock);
- err = -EINVAL;
- } else {
- err = tgt_client_data_write(mti->mti_env, &mdt->mdt_lut, lcd,
- &off, th);
- mutex_unlock(&ted->ted_lcd_lock);
- }
- RETURN(err);
-}
-
extern struct lu_context_key mdt_thread_key;
/* add credits for last_rcvd update */
static int mdt_txn_start_cb(const struct lu_env *env,
struct thandle *th, void *cookie)
{
- struct mdt_device *mdt = cookie;
- struct mdt_thread_info *mti;
- int rc;
- ENTRY;
+ struct lu_target *tgt = cookie;
+ struct mdt_thread_info *mti;
+ int rc;
+
+ /* if there is no session, then this transaction is not result of
+ * request processing but some local operation or echo client */
+ if (env->le_ses == NULL)
+ return 0;
mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- LASSERT(mdt->mdt_lut.lut_last_rcvd);
+ LASSERT(tgt->lut_last_rcvd);
if (mti->mti_exp == NULL)
- RETURN(0);
+ return 0;
- rc = dt_declare_record_write(env, mdt->mdt_lut.lut_last_rcvd,
+ rc = dt_declare_record_write(env, tgt->lut_last_rcvd,
sizeof(struct lsd_client_data),
mti->mti_exp->exp_target_data.ted_lr_off,
th);
if (rc)
return rc;
- rc = dt_declare_record_write(env, mdt->mdt_lut.lut_last_rcvd,
+ rc = dt_declare_record_write(env, tgt->lut_last_rcvd,
sizeof(struct lr_server_data), 0, th);
if (rc)
return rc;
static int mdt_txn_stop_cb(const struct lu_env *env,
struct thandle *txn, void *cookie)
{
- struct mdt_device *mdt = cookie;
- struct mdt_thread_info *mti;
- struct ptlrpc_request *req;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- req = mdt_info_req(mti);
+ struct lu_target *tgt = cookie;
+ struct mdt_thread_info *mti;
+ struct dt_object *obj = NULL;
+ int rc;
- if (mti->mti_mdt == NULL || req == NULL)
+ if (env->le_ses == NULL)
return 0;
- if (mti->mti_has_trans) {
- /* XXX: currently there are allowed cases, but the wrong cases
- * are also possible, so better check is needed here */
- CDEBUG(D_INFO, "More than one transaction "LPU64"\n",
- mti->mti_transno);
- return 0;
- }
-
- mti->mti_has_trans = 1;
- spin_lock(&mdt->mdt_lut.lut_translock);
- if (txn->th_result != 0) {
- if (mti->mti_transno != 0) {
- CERROR("Replay transno "LPU64" failed: rc %d\n",
- mti->mti_transno, txn->th_result);
- spin_unlock(&mdt->mdt_lut.lut_translock);
- return 0;
- }
- } else if (mti->mti_transno == 0) {
- mti->mti_transno = ++ mdt->mdt_lut.lut_last_transno;
- } else {
- /* should be replay */
- if (mti->mti_transno > mdt->mdt_lut.lut_last_transno)
- mdt->mdt_lut.lut_last_transno = mti->mti_transno;
- }
- spin_unlock(&mdt->mdt_lut.lut_translock);
- /* sometimes the reply message has not been successfully packed */
- LASSERT(req != NULL && req->rq_repmsg != NULL);
+ mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
+ LASSERT(mti);
+ if (mti->mti_has_trans) {
+ /* XXX: currently there are allowed cases, but the wrong cases
+ * are also possible, so better check is needed here */
+ CDEBUG(D_INFO, "More than one transaction "LPU64"\n",
+ mti->mti_transno);
+ return 0;
+ }
- /** VBR: set new versions */
- /* we probably should not set local transno to the remote object
- * on another storage, What about VBR on remote object? XXX */
- if (txn->th_result == 0 && mti->mti_mos != NULL &&
- !mdt_object_remote(mti->mti_mos)) {
+ mti->mti_has_trans = 1;
- dt_version_set(env, mdt_obj2dt(mti->mti_mos),
- mti->mti_transno, txn);
- mti->mti_mos = NULL;
- }
+ if (mti->mti_mos != NULL &&
+ mdt_object_remote(mti->mti_mos)) {
+ obj = mdt_obj2dt(mti->mti_mos);
+ }
- /* filling reply data */
- CDEBUG(D_INODE, "transno = "LPU64", last_committed = "LPU64"\n",
- mti->mti_transno, req->rq_export->exp_obd->obd_last_committed);
-
- req->rq_transno = mti->mti_transno;
- lustre_msg_set_transno(req->rq_repmsg, mti->mti_transno);
- /* if can't add callback, do sync write */
- txn->th_sync |= !!tgt_last_commit_cb_add(txn, &mdt->mdt_lut,
- mti->mti_exp,
- mti->mti_transno);
- return mdt_last_rcvd_update(mti, txn);
+ rc = tgt_last_rcvd_update(env, tgt, obj, mti->mti_opdata, txn,
+ mdt_info_req(mti));
+ return rc;
}
int mdt_fs_setup(const struct lu_env *env, struct mdt_device *mdt,
mdt->mdt_txn_cb.dtc_txn_start = mdt_txn_start_cb;
mdt->mdt_txn_cb.dtc_txn_stop = mdt_txn_stop_cb;
mdt->mdt_txn_cb.dtc_txn_commit = NULL;
- mdt->mdt_txn_cb.dtc_cookie = mdt;
+ mdt->mdt_txn_cb.dtc_cookie = &mdt->mdt_lut;
mdt->mdt_txn_cb.dtc_tag = LCT_MD_THREAD;
CFS_INIT_LIST_HEAD(&mdt->mdt_txn_cb.dtc_linkage);
- dt_txn_callback_add(mdt->mdt_bottom, &mdt->mdt_txn_cb);
+ rc = mdt_server_data_init(env, mdt, lsi);
+ if (rc != 0)
+ RETURN(rc);
- rc = mdt_server_data_init(env, mdt, lsi);
+ dt_txn_callback_add(mdt->mdt_bottom, &mdt->mdt_txn_cb);
RETURN(rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff