* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
/**
* Allocate in-memory data for client slot related to export.
*/
-int lut_client_alloc(struct obd_export *exp)
+int tgt_client_alloc(struct obd_export *exp)
{
- LASSERT(exp != exp->exp_obd->obd_self_export);
-
- OBD_ALLOC_PTR(exp->exp_target_data.ted_lcd);
- if (exp->exp_target_data.ted_lcd == NULL)
- RETURN(-ENOMEM);
- /* Mark that slot is not yet valid, 0 doesn't work here */
- exp->exp_target_data.ted_lr_idx = -1;
- RETURN(0);
+ ENTRY;
+ LASSERT(exp != exp->exp_obd->obd_self_export);
+
+ OBD_ALLOC_PTR(exp->exp_target_data.ted_lcd);
+ if (exp->exp_target_data.ted_lcd == NULL)
+ RETURN(-ENOMEM);
+ /* Mark that slot is not yet valid, 0 doesn't work here */
+ exp->exp_target_data.ted_lr_idx = -1;
+ RETURN(0);
}
-EXPORT_SYMBOL(lut_client_alloc);
+EXPORT_SYMBOL(tgt_client_alloc);
/**
* Free in-memory data for client slot related to export.
*/
-void lut_client_free(struct obd_export *exp)
+void tgt_client_free(struct obd_export *exp)
{
- struct tg_export_data *ted = &exp->exp_target_data;
- struct lu_target *lut = class_exp2tgt(exp);
+ struct tg_export_data *ted = &exp->exp_target_data;
+ struct lu_target *lut = class_exp2tgt(exp);
- LASSERT(exp != exp->exp_obd->obd_self_export);
+ LASSERT(exp != exp->exp_obd->obd_self_export);
- OBD_FREE_PTR(ted->ted_lcd);
- ted->ted_lcd = NULL;
+ OBD_FREE_PTR(ted->ted_lcd);
+ ted->ted_lcd = NULL;
- /* Slot may be not yet assigned */
- if (ted->ted_lr_idx < 0)
- return;
- /* Clear bit when lcd is freed */
+ /* Slot may be not yet assigned */
+ if (ted->ted_lr_idx < 0)
+ return;
+ /* Clear bit when lcd is freed */
LASSERT(lut->lut_client_bitmap);
- if (!cfs_test_and_clear_bit(ted->ted_lr_idx, lut->lut_client_bitmap)) {
- CERROR("%s: client %u bit already clear in bitmap\n",
- exp->exp_obd->obd_name, ted->ted_lr_idx);
- LBUG();
- }
+ if (!test_and_clear_bit(ted->ted_lr_idx, lut->lut_client_bitmap)) {
+ CERROR("%s: client %u bit already clear in bitmap\n",
+ exp->exp_obd->obd_name, ted->ted_lr_idx);
+ LBUG();
+ }
}
-EXPORT_SYMBOL(lut_client_free);
+EXPORT_SYMBOL(tgt_client_free);
-int lut_client_data_read(const struct lu_env *env, struct lu_target *tg,
+int tgt_client_data_read(const struct lu_env *env, struct lu_target *tgt,
struct lsd_client_data *lcd, loff_t *off, int index)
{
- struct tgt_thread_info *tti = tgt_th_info(env);
- int rc;
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ int rc;
tti_buf_lcd(tti);
- rc = dt_record_read(env, tg->lut_last_rcvd, &tti->tti_buf, off);
+ rc = dt_record_read(env, tgt->lut_last_rcvd, &tti->tti_buf, off);
if (rc == 0) {
- check_lcd(tg->lut_obd->obd_name, index, &tti->tti_lcd);
+ check_lcd(tgt->lut_obd->obd_name, index, &tti->tti_lcd);
lcd_le_to_cpu(&tti->tti_lcd, lcd);
+ lcd->lcd_last_result = ptlrpc_status_ntoh(lcd->lcd_last_result);
+ lcd->lcd_last_close_result =
+ ptlrpc_status_ntoh(lcd->lcd_last_close_result);
}
CDEBUG(D_INFO, "%s: read lcd @%lld uuid = %s, last_transno = "LPU64
", last_xid = "LPU64", last_result = %u, last_data = %u, "
"last_close_transno = "LPU64", last_close_xid = "LPU64", "
- "last_close_result = %u, rc = %d\n", tg->lut_obd->obd_name,
+ "last_close_result = %u, rc = %d\n", tgt->lut_obd->obd_name,
*off, lcd->lcd_uuid, lcd->lcd_last_transno, lcd->lcd_last_xid,
lcd->lcd_last_result, lcd->lcd_last_data,
lcd->lcd_last_close_transno, lcd->lcd_last_close_xid,
lcd->lcd_last_close_result, rc);
return rc;
}
-EXPORT_SYMBOL(lut_client_data_read);
+EXPORT_SYMBOL(tgt_client_data_read);
-int lut_client_data_write(const struct lu_env *env, struct lu_target *tg,
+int tgt_client_data_write(const struct lu_env *env, struct lu_target *tgt,
struct lsd_client_data *lcd, loff_t *off,
struct thandle *th)
{
struct tgt_thread_info *tti = tgt_th_info(env);
+ lcd->lcd_last_result = ptlrpc_status_hton(lcd->lcd_last_result);
+ lcd->lcd_last_close_result =
+ ptlrpc_status_hton(lcd->lcd_last_close_result);
lcd_cpu_to_le(lcd, &tti->tti_lcd);
tti_buf_lcd(tti);
- return dt_record_write(env, tg->lut_last_rcvd, &tti->tti_buf, off, th);
+ return dt_record_write(env, tgt->lut_last_rcvd, &tti->tti_buf, off, th);
}
-EXPORT_SYMBOL(lut_client_data_write);
+EXPORT_SYMBOL(tgt_client_data_write);
/**
* Update client data in last_rcvd
*/
-int lut_client_data_update(const struct lu_env *env, struct obd_export *exp)
+int tgt_client_data_update(const struct lu_env *env, struct obd_export *exp)
{
- struct tg_export_data *ted = &exp->exp_target_data;
- struct lu_target *tg = class_exp2tgt(exp);
- struct tgt_thread_info *tti = tgt_th_info(env);
- struct thandle *th;
- int rc = 0;
+ struct tg_export_data *ted = &exp->exp_target_data;
+ struct lu_target *tgt = class_exp2tgt(exp);
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ struct thandle *th;
+ int rc = 0;
ENTRY;
- th = dt_trans_create(env, tg->lut_bottom);
+ th = dt_trans_create(env, tgt->lut_bottom);
if (IS_ERR(th))
RETURN(PTR_ERR(th));
- rc = dt_declare_record_write(env, tg->lut_last_rcvd,
+ rc = dt_declare_record_write(env, tgt->lut_last_rcvd,
sizeof(struct lsd_client_data),
ted->ted_lr_off, th);
if (rc)
GOTO(out, rc);
- rc = dt_trans_start_local(env, tg->lut_bottom, th);
+ rc = dt_trans_start_local(env, tgt->lut_bottom, th);
if (rc)
GOTO(out, rc);
/*
* transaction so that many connecting clients will not bring
* server down with lots of sync writes.
*/
- rc = lut_new_client_cb_add(th, exp);
+ rc = tgt_new_client_cb_add(th, exp);
if (rc) {
/* can't add callback, do sync now */
th->th_sync = 1;
} else {
- cfs_spin_lock(&exp->exp_lock);
+ spin_lock(&exp->exp_lock);
exp->exp_need_sync = 1;
- cfs_spin_unlock(&exp->exp_lock);
+ spin_unlock(&exp->exp_lock);
}
tti->tti_off = ted->ted_lr_off;
- rc = lut_client_data_write(env, tg, ted->ted_lcd, &tti->tti_off, th);
+ rc = tgt_client_data_write(env, tgt, ted->ted_lcd, &tti->tti_off, th);
EXIT;
out:
- dt_trans_stop(env, tg->lut_bottom, th);
+ dt_trans_stop(env, tgt->lut_bottom, th);
CDEBUG(D_INFO, "%s: update last_rcvd client data for UUID = %s, "
- "last_transno = "LPU64": rc = %d\n", tg->lut_obd->obd_name,
- tg->lut_lsd.lsd_uuid, tg->lut_lsd.lsd_last_transno, rc);
+ "last_transno = "LPU64": rc = %d\n", tgt->lut_obd->obd_name,
+ tgt->lut_lsd.lsd_uuid, tgt->lut_lsd.lsd_last_transno, rc);
return rc;
}
-int lut_server_data_read(const struct lu_env *env, struct lu_target *tg)
+int tgt_server_data_read(const struct lu_env *env, struct lu_target *tgt)
{
- struct tgt_thread_info *tti = tgt_th_info(env);
- int rc;
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ int rc;
tti->tti_off = 0;
tti_buf_lsd(tti);
- rc = dt_record_read(env, tg->lut_last_rcvd, &tti->tti_buf, &tti->tti_off);
+ rc = dt_record_read(env, tgt->lut_last_rcvd, &tti->tti_buf,
+ &tti->tti_off);
if (rc == 0)
- lsd_le_to_cpu(&tti->tti_lsd, &tg->lut_lsd);
+ lsd_le_to_cpu(&tti->tti_lsd, &tgt->lut_lsd);
CDEBUG(D_INFO, "%s: read last_rcvd server data for UUID = %s, "
- "last_transno = "LPU64": rc = %d\n", tg->lut_obd->obd_name,
- tg->lut_lsd.lsd_uuid, tg->lut_lsd.lsd_last_transno, rc);
+ "last_transno = "LPU64": rc = %d\n", tgt->lut_obd->obd_name,
+ tgt->lut_lsd.lsd_uuid, tgt->lut_lsd.lsd_last_transno, rc);
return rc;
}
-EXPORT_SYMBOL(lut_server_data_read);
+EXPORT_SYMBOL(tgt_server_data_read);
-int lut_server_data_write(const struct lu_env *env, struct lu_target *tg,
+int tgt_server_data_write(const struct lu_env *env, struct lu_target *tgt,
struct thandle *th)
{
- struct tgt_thread_info *tti = tgt_th_info(env);
- int rc;
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ int rc;
+
ENTRY;
tti->tti_off = 0;
tti_buf_lsd(tti);
- lsd_cpu_to_le(&tg->lut_lsd, &tti->tti_lsd);
+ lsd_cpu_to_le(&tgt->lut_lsd, &tti->tti_lsd);
- rc = dt_record_write(env, tg->lut_last_rcvd, &tti->tti_buf,
+ rc = dt_record_write(env, tgt->lut_last_rcvd, &tti->tti_buf,
&tti->tti_off, th);
CDEBUG(D_INFO, "%s: write last_rcvd server data for UUID = %s, "
- "last_transno = "LPU64": rc = %d\n", tg->lut_obd->obd_name,
- tg->lut_lsd.lsd_uuid, tg->lut_lsd.lsd_last_transno, rc);
+ "last_transno = "LPU64": rc = %d\n", tgt->lut_obd->obd_name,
+ tgt->lut_lsd.lsd_uuid, tgt->lut_lsd.lsd_last_transno, rc);
RETURN(rc);
}
-EXPORT_SYMBOL(lut_server_data_write);
+EXPORT_SYMBOL(tgt_server_data_write);
/**
* Update server data in last_rcvd
*/
-int lut_server_data_update(const struct lu_env *env, struct lu_target *tg,
+int tgt_server_data_update(const struct lu_env *env, struct lu_target *tgt,
int sync)
{
- struct tgt_thread_info *tti = tgt_th_info(env);
- struct thandle *th;
- int rc = 0;
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ struct thandle *th;
+ int rc = 0;
ENTRY;
CDEBUG(D_SUPER,
"%s: mount_count is "LPU64", last_transno is "LPU64"\n",
- tg->lut_lsd.lsd_uuid, tg->lut_obd->u.obt.obt_mount_count,
- tg->lut_last_transno);
+ tgt->lut_lsd.lsd_uuid, tgt->lut_obd->u.obt.obt_mount_count,
+ tgt->lut_last_transno);
/* Always save latest transno to keep it fresh */
- cfs_spin_lock(&tg->lut_translock);
- tg->lut_lsd.lsd_last_transno = tg->lut_last_transno;
- cfs_spin_unlock(&tg->lut_translock);
+ spin_lock(&tgt->lut_translock);
+ tgt->lut_lsd.lsd_last_transno = tgt->lut_last_transno;
+ spin_unlock(&tgt->lut_translock);
- th = dt_trans_create(env, tg->lut_bottom);
+ th = dt_trans_create(env, tgt->lut_bottom);
if (IS_ERR(th))
RETURN(PTR_ERR(th));
th->th_sync = sync;
- rc = dt_declare_record_write(env, tg->lut_last_rcvd,
+ rc = dt_declare_record_write(env, tgt->lut_last_rcvd,
sizeof(struct lr_server_data),
tti->tti_off, th);
if (rc)
GOTO(out, rc);
- rc = dt_trans_start(env, tg->lut_bottom, th);
+ rc = dt_trans_start(env, tgt->lut_bottom, th);
if (rc)
GOTO(out, rc);
- rc = lut_server_data_write(env, tg, th);
+ rc = tgt_server_data_write(env, tgt, th);
out:
- dt_trans_stop(env, tg->lut_bottom, th);
+ dt_trans_stop(env, tgt->lut_bottom, th);
CDEBUG(D_INFO, "%s: update last_rcvd server data for UUID = %s, "
- "last_transno = "LPU64": rc = %d\n", tg->lut_obd->obd_name,
- tg->lut_lsd.lsd_uuid, tg->lut_lsd.lsd_last_transno, rc);
+ "last_transno = "LPU64": rc = %d\n", tgt->lut_obd->obd_name,
+ tgt->lut_lsd.lsd_uuid, tgt->lut_lsd.lsd_last_transno, rc);
RETURN(rc);
}
-EXPORT_SYMBOL(lut_server_data_update);
+EXPORT_SYMBOL(tgt_server_data_update);
-int lut_truncate_last_rcvd(const struct lu_env *env, struct lu_target *tg,
+int tgt_truncate_last_rcvd(const struct lu_env *env, struct lu_target *tgt,
loff_t size)
{
- struct dt_object *dt = tg->lut_last_rcvd;
+ struct dt_object *dt = tgt->lut_last_rcvd;
struct thandle *th;
struct lu_attr attr;
int rc;
attr.la_size = size;
attr.la_valid = LA_SIZE;
- th = dt_trans_create(env, tg->lut_bottom);
+ th = dt_trans_create(env, tgt->lut_bottom);
if (IS_ERR(th))
RETURN(PTR_ERR(th));
rc = dt_declare_punch(env, dt, size, OBD_OBJECT_EOF, th);
rc = dt_declare_attr_set(env, dt, &attr, th);
if (rc)
GOTO(cleanup, rc);
- rc = dt_trans_start_local(env, tg->lut_bottom, th);
+ rc = dt_trans_start_local(env, tgt->lut_bottom, th);
if (rc)
GOTO(cleanup, rc);
rc = dt_attr_set(env, dt, &attr, th, BYPASS_CAPA);
cleanup:
- dt_trans_stop(env, tg->lut_bottom, th);
+ dt_trans_stop(env, tgt->lut_bottom, th);
RETURN(rc);
}
-EXPORT_SYMBOL(lut_truncate_last_rcvd);
+EXPORT_SYMBOL(tgt_truncate_last_rcvd);
-void lut_client_epoch_update(const struct lu_env *env, struct obd_export *exp)
+void tgt_client_epoch_update(const struct lu_env *env, struct obd_export *exp)
{
- struct lsd_client_data *lcd = exp->exp_target_data.ted_lcd;
- struct lu_target *lut = class_exp2tgt(exp);
-
- LASSERT(lut->lut_bottom);
- /** VBR: set client last_epoch to current epoch */
- if (lcd->lcd_last_epoch >= lut->lut_lsd.lsd_start_epoch)
- return;
- lcd->lcd_last_epoch = lut->lut_lsd.lsd_start_epoch;
- lut_client_data_update(env, exp);
+ struct lsd_client_data *lcd = exp->exp_target_data.ted_lcd;
+ struct lu_target *tgt = class_exp2tgt(exp);
+
+ LASSERT(tgt->lut_bottom);
+ /** VBR: set client last_epoch to current epoch */
+ if (lcd->lcd_last_epoch >= tgt->lut_lsd.lsd_start_epoch)
+ return;
+ lcd->lcd_last_epoch = tgt->lut_lsd.lsd_start_epoch;
+ tgt_client_data_update(env, exp);
}
/**
* Update boot epoch when recovery ends
*/
-void lut_boot_epoch_update(struct lu_target *lut)
+void tgt_boot_epoch_update(struct lu_target *tgt)
{
- struct lu_env env;
- struct ptlrpc_request *req;
- __u32 start_epoch;
- cfs_list_t client_list;
- int rc;
+ struct lu_env env;
+ struct ptlrpc_request *req;
+ __u32 start_epoch;
+ cfs_list_t client_list;
+ int rc;
- if (lut->lut_obd->obd_stopping)
- return;
+ if (tgt->lut_obd->obd_stopping)
+ return;
rc = lu_env_init(&env, LCT_DT_THREAD);
- if (rc) {
- CERROR("Can't initialize environment rc=%d\n", rc);
- return;
- }
-
- cfs_spin_lock(&lut->lut_translock);
- start_epoch = lr_epoch(lut->lut_last_transno) + 1;
- lut->lut_last_transno = (__u64)start_epoch << LR_EPOCH_BITS;
- lut->lut_lsd.lsd_start_epoch = start_epoch;
- cfs_spin_unlock(&lut->lut_translock);
-
- CFS_INIT_LIST_HEAD(&client_list);
- /**
- * The recovery is not yet finished and final queue can still be updated
- * with resend requests. Move final list to separate one for processing
- */
- cfs_spin_lock(&lut->lut_obd->obd_recovery_task_lock);
- cfs_list_splice_init(&lut->lut_obd->obd_final_req_queue, &client_list);
- cfs_spin_unlock(&lut->lut_obd->obd_recovery_task_lock);
-
- /**
- * go through list of exports participated in recovery and
- * set new epoch for them
- */
- cfs_list_for_each_entry(req, &client_list, rq_list) {
- LASSERT(!req->rq_export->exp_delayed);
- if (!req->rq_export->exp_vbr_failed)
- lut_client_epoch_update(&env, req->rq_export);
- }
- /** return list back at once */
- cfs_spin_lock(&lut->lut_obd->obd_recovery_task_lock);
- cfs_list_splice_init(&client_list, &lut->lut_obd->obd_final_req_queue);
- cfs_spin_unlock(&lut->lut_obd->obd_recovery_task_lock);
- /** update server epoch */
- lut_server_data_update(&env, lut, 1);
- lu_env_fini(&env);
+ if (rc) {
+ CERROR("%s: can't initialize environment: rc = %d\n",
+ tgt->lut_obd->obd_name, rc);
+ return;
+ }
+
+ spin_lock(&tgt->lut_translock);
+ start_epoch = lr_epoch(tgt->lut_last_transno) + 1;
+ tgt->lut_last_transno = (__u64)start_epoch << LR_EPOCH_BITS;
+ tgt->lut_lsd.lsd_start_epoch = start_epoch;
+ spin_unlock(&tgt->lut_translock);
+
+ CFS_INIT_LIST_HEAD(&client_list);
+ /**
+ * The recovery is not yet finished and final queue can still be updated
+ * with resend requests. Move final list to separate one for processing
+ */
+ spin_lock(&tgt->lut_obd->obd_recovery_task_lock);
+ cfs_list_splice_init(&tgt->lut_obd->obd_final_req_queue, &client_list);
+ spin_unlock(&tgt->lut_obd->obd_recovery_task_lock);
+
+ /**
+ * go through list of exports participated in recovery and
+ * set new epoch for them
+ */
+ cfs_list_for_each_entry(req, &client_list, rq_list) {
+ LASSERT(!req->rq_export->exp_delayed);
+ if (!req->rq_export->exp_vbr_failed)
+ tgt_client_epoch_update(&env, req->rq_export);
+ }
+ /** return list back at once */
+ spin_lock(&tgt->lut_obd->obd_recovery_task_lock);
+ cfs_list_splice_init(&client_list, &tgt->lut_obd->obd_final_req_queue);
+ spin_unlock(&tgt->lut_obd->obd_recovery_task_lock);
+ /** update server epoch */
+ tgt_server_data_update(&env, tgt, 1);
+ lu_env_fini(&env);
}
-EXPORT_SYMBOL(lut_boot_epoch_update);
+EXPORT_SYMBOL(tgt_boot_epoch_update);
/**
* commit callback, need to update last_commited value
*/
-struct lut_last_committed_callback {
- struct dt_txn_commit_cb llcc_cb;
- struct lu_target *llcc_lut;
- struct obd_export *llcc_exp;
- __u64 llcc_transno;
+struct tgt_last_committed_callback {
+ struct dt_txn_commit_cb llcc_cb;
+ struct lu_target *llcc_tgt;
+ struct obd_export *llcc_exp;
+ __u64 llcc_transno;
};
-void lut_cb_last_committed(struct lu_env *env, struct thandle *th,
- struct dt_txn_commit_cb *cb, int err)
+void tgt_cb_last_committed(struct lu_env *env, struct thandle *th,
+ struct dt_txn_commit_cb *cb, int err)
{
- struct lut_last_committed_callback *ccb;
-
- ccb = container_of0(cb, struct lut_last_committed_callback, llcc_cb);
-
- LASSERT(ccb->llcc_lut != NULL);
- LASSERT(ccb->llcc_exp->exp_obd == ccb->llcc_lut->lut_obd);
-
- cfs_spin_lock(&ccb->llcc_lut->lut_translock);
- if (ccb->llcc_transno > ccb->llcc_lut->lut_obd->obd_last_committed)
- ccb->llcc_lut->lut_obd->obd_last_committed = ccb->llcc_transno;
-
- LASSERT(ccb->llcc_exp);
- if (ccb->llcc_transno > ccb->llcc_exp->exp_last_committed) {
- ccb->llcc_exp->exp_last_committed = ccb->llcc_transno;
- cfs_spin_unlock(&ccb->llcc_lut->lut_translock);
- ptlrpc_commit_replies(ccb->llcc_exp);
- } else {
- cfs_spin_unlock(&ccb->llcc_lut->lut_translock);
- }
- class_export_cb_put(ccb->llcc_exp);
- if (ccb->llcc_transno)
- CDEBUG(D_HA, "%s: transno "LPD64" is committed\n",
- ccb->llcc_lut->lut_obd->obd_name, ccb->llcc_transno);
- OBD_FREE_PTR(ccb);
+ struct tgt_last_committed_callback *ccb;
+
+ ccb = container_of0(cb, struct tgt_last_committed_callback, llcc_cb);
+
+ LASSERT(ccb->llcc_tgt != NULL);
+ LASSERT(ccb->llcc_exp->exp_obd == ccb->llcc_tgt->lut_obd);
+
+ spin_lock(&ccb->llcc_tgt->lut_translock);
+ if (ccb->llcc_transno > ccb->llcc_tgt->lut_obd->obd_last_committed)
+ ccb->llcc_tgt->lut_obd->obd_last_committed = ccb->llcc_transno;
+
+ LASSERT(ccb->llcc_exp);
+ if (ccb->llcc_transno > ccb->llcc_exp->exp_last_committed) {
+ ccb->llcc_exp->exp_last_committed = ccb->llcc_transno;
+ spin_unlock(&ccb->llcc_tgt->lut_translock);
+ ptlrpc_commit_replies(ccb->llcc_exp);
+ } else {
+ spin_unlock(&ccb->llcc_tgt->lut_translock);
+ }
+ class_export_cb_put(ccb->llcc_exp);
+ if (ccb->llcc_transno)
+ CDEBUG(D_HA, "%s: transno "LPD64" is committed\n",
+ ccb->llcc_tgt->lut_obd->obd_name, ccb->llcc_transno);
+ OBD_FREE_PTR(ccb);
}
-int lut_last_commit_cb_add(struct thandle *th, struct lu_target *lut,
- struct obd_export *exp, __u64 transno)
+int tgt_last_commit_cb_add(struct thandle *th, struct lu_target *tgt,
+ struct obd_export *exp, __u64 transno)
{
- struct lut_last_committed_callback *ccb;
- struct dt_txn_commit_cb *dcb;
- int rc;
+ struct tgt_last_committed_callback *ccb;
+ struct dt_txn_commit_cb *dcb;
+ int rc;
OBD_ALLOC_PTR(ccb);
if (ccb == NULL)
return -ENOMEM;
- ccb->llcc_lut = lut;
- ccb->llcc_exp = class_export_cb_get(exp);
+ ccb->llcc_tgt = tgt;
+ ccb->llcc_exp = class_export_cb_get(exp);
ccb->llcc_transno = transno;
- dcb = &ccb->llcc_cb;
- dcb->dcb_func = lut_cb_last_committed;
+ dcb = &ccb->llcc_cb;
+ dcb->dcb_func = tgt_cb_last_committed;
CFS_INIT_LIST_HEAD(&dcb->dcb_linkage);
- strncpy(dcb->dcb_name, "lut_cb_last_committed", MAX_COMMIT_CB_STR_LEN);
+ strncpy(dcb->dcb_name, "tgt_cb_last_committed", MAX_COMMIT_CB_STR_LEN);
dcb->dcb_name[MAX_COMMIT_CB_STR_LEN - 1] = '\0';
rc = dt_trans_cb_add(th, dcb);
OBD_FREE_PTR(ccb);
}
- if ((exp->exp_connect_flags & OBD_CONNECT_LIGHTWEIGHT) != 0)
+ if (exp_connect_flags(exp) & OBD_CONNECT_LIGHTWEIGHT)
/* report failure to force synchronous operation */
return -EPERM;
return rc;
}
-EXPORT_SYMBOL(lut_last_commit_cb_add);
+EXPORT_SYMBOL(tgt_last_commit_cb_add);
-struct lut_new_client_callback {
- struct dt_txn_commit_cb lncc_cb;
- struct obd_export *lncc_exp;
+struct tgt_new_client_callback {
+ struct dt_txn_commit_cb lncc_cb;
+ struct obd_export *lncc_exp;
};
-void lut_cb_new_client(struct lu_env *env, struct thandle *th,
- struct dt_txn_commit_cb *cb, int err)
+void tgt_cb_new_client(struct lu_env *env, struct thandle *th,
+ struct dt_txn_commit_cb *cb, int err)
{
- struct lut_new_client_callback *ccb;
+ struct tgt_new_client_callback *ccb;
- ccb = container_of0(cb, struct lut_new_client_callback, lncc_cb);
+ ccb = container_of0(cb, struct tgt_new_client_callback, lncc_cb);
- LASSERT(ccb->lncc_exp->exp_obd);
+ LASSERT(ccb->lncc_exp->exp_obd);
- CDEBUG(D_RPCTRACE, "%s: committing for initial connect of %s\n",
- ccb->lncc_exp->exp_obd->obd_name,
- ccb->lncc_exp->exp_client_uuid.uuid);
+ CDEBUG(D_RPCTRACE, "%s: committing for initial connect of %s\n",
+ ccb->lncc_exp->exp_obd->obd_name,
+ ccb->lncc_exp->exp_client_uuid.uuid);
- cfs_spin_lock(&ccb->lncc_exp->exp_lock);
- ccb->lncc_exp->exp_need_sync = 0;
- cfs_spin_unlock(&ccb->lncc_exp->exp_lock);
- class_export_cb_put(ccb->lncc_exp);
+ spin_lock(&ccb->lncc_exp->exp_lock);
+ ccb->lncc_exp->exp_need_sync = 0;
+ spin_unlock(&ccb->lncc_exp->exp_lock);
+ class_export_cb_put(ccb->lncc_exp);
- OBD_FREE_PTR(ccb);
+ OBD_FREE_PTR(ccb);
}
-int lut_new_client_cb_add(struct thandle *th, struct obd_export *exp)
+int tgt_new_client_cb_add(struct thandle *th, struct obd_export *exp)
{
- struct lut_new_client_callback *ccb;
- struct dt_txn_commit_cb *dcb;
- int rc;
+ struct tgt_new_client_callback *ccb;
+ struct dt_txn_commit_cb *dcb;
+ int rc;
OBD_ALLOC_PTR(ccb);
if (ccb == NULL)
return -ENOMEM;
- ccb->lncc_exp = class_export_cb_get(exp);
+ ccb->lncc_exp = class_export_cb_get(exp);
- dcb = &ccb->lncc_cb;
- dcb->dcb_func = lut_cb_new_client;
+ dcb = &ccb->lncc_cb;
+ dcb->dcb_func = tgt_cb_new_client;
CFS_INIT_LIST_HEAD(&dcb->dcb_linkage);
- strncpy(dcb->dcb_name, "lut_cb_new_client", MAX_COMMIT_CB_STR_LEN);
+ strncpy(dcb->dcb_name, "tgt_cb_new_client", MAX_COMMIT_CB_STR_LEN);
dcb->dcb_name[MAX_COMMIT_CB_STR_LEN - 1] = '\0';
rc = dt_trans_cb_add(th, dcb);
* We use a bitmap to locate a free space in the last_rcvd file and initialize
* tg_export_data.
*/
-int lut_client_new(const struct lu_env *env, struct obd_export *exp)
+int tgt_client_new(const struct lu_env *env, struct obd_export *exp)
{
- struct tg_export_data *ted = &exp->exp_target_data;
- struct lu_target *tg = class_exp2tgt(exp);
- int rc = 0, idx;
+ struct tg_export_data *ted = &exp->exp_target_data;
+ struct lu_target *tgt = class_exp2tgt(exp);
+ int rc = 0, idx;
ENTRY;
- LASSERT(tg->lut_client_bitmap != NULL);
- if (!strcmp(ted->ted_lcd->lcd_uuid, tg->lut_obd->obd_uuid.uuid))
+ LASSERT(tgt->lut_client_bitmap != NULL);
+ if (!strcmp(ted->ted_lcd->lcd_uuid, tgt->lut_obd->obd_uuid.uuid))
RETURN(0);
- cfs_mutex_init(&ted->ted_lcd_lock);
+ mutex_init(&ted->ted_lcd_lock);
- if ((exp->exp_connect_flags & OBD_CONNECT_LIGHTWEIGHT) != 0)
+ if (exp_connect_flags(exp) & OBD_CONNECT_LIGHTWEIGHT)
RETURN(0);
/* the bitmap operations can handle cl_idx > sizeof(long) * 8, so
* there's no need for extra complication here
*/
- idx = cfs_find_first_zero_bit(tg->lut_client_bitmap, LR_MAX_CLIENTS);
+ idx = find_first_zero_bit(tgt->lut_client_bitmap, LR_MAX_CLIENTS);
repeat:
if (idx >= LR_MAX_CLIENTS ||
OBD_FAIL_CHECK(OBD_FAIL_MDS_CLIENT_ADD)) {
CERROR("%s: no room for %u clients - fix LR_MAX_CLIENTS\n",
- tg->lut_obd->obd_name, idx);
+ tgt->lut_obd->obd_name, idx);
RETURN(-EOVERFLOW);
}
- if (cfs_test_and_set_bit(idx, tg->lut_client_bitmap)) {
- idx = cfs_find_next_zero_bit(tg->lut_client_bitmap,
+ if (test_and_set_bit(idx, tgt->lut_client_bitmap)) {
+ idx = find_next_zero_bit(tgt->lut_client_bitmap,
LR_MAX_CLIENTS, idx);
goto repeat;
}
CDEBUG(D_INFO, "%s: client at idx %d with UUID '%s' added\n",
- tg->lut_obd->obd_name, idx, ted->ted_lcd->lcd_uuid);
+ tgt->lut_obd->obd_name, idx, ted->ted_lcd->lcd_uuid);
ted->ted_lr_idx = idx;
- ted->ted_lr_off = tg->lut_lsd.lsd_client_start +
- idx * tg->lut_lsd.lsd_client_size;
+ ted->ted_lr_off = tgt->lut_lsd.lsd_client_start +
+ idx * tgt->lut_lsd.lsd_client_size;
LASSERTF(ted->ted_lr_off > 0, "ted_lr_off = %llu\n", ted->ted_lr_off);
CDEBUG(D_INFO, "%s: new client at index %d (%llu) with UUID '%s'\n",
- tg->lut_obd->obd_name, ted->ted_lr_idx, ted->ted_lr_off,
+ tgt->lut_obd->obd_name, ted->ted_lr_idx, ted->ted_lr_off,
ted->ted_lcd->lcd_uuid);
if (OBD_FAIL_CHECK(OBD_FAIL_TGT_CLIENT_ADD))
RETURN(-ENOSPC);
- rc = lut_client_data_update(env, exp);
+ rc = tgt_client_data_update(env, exp);
if (rc)
CERROR("%s: Failed to write client lcd at idx %d, rc %d\n",
- tg->lut_obd->obd_name, idx, rc);
+ tgt->lut_obd->obd_name, idx, rc);
RETURN(rc);
}
-EXPORT_SYMBOL(lut_client_new);
+EXPORT_SYMBOL(tgt_client_new);
/* Add client data to the MDS. We use a bitmap to locate a free space
* in the last_rcvd file if cl_off is -1 (i.e. a new client).
* It should not be possible to fail adding an existing client - otherwise
* mdt_init_server_data() callsite needs to be fixed.
*/
-int lut_client_add(const struct lu_env *env, struct obd_export *exp, int idx)
+int tgt_client_add(const struct lu_env *env, struct obd_export *exp, int idx)
{
- struct tg_export_data *ted = &exp->exp_target_data;
- struct lu_target *tg = class_exp2tgt(exp);
+ struct tg_export_data *ted = &exp->exp_target_data;
+ struct lu_target *tgt = class_exp2tgt(exp);
ENTRY;
- LASSERT(tg->lut_client_bitmap != NULL);
+ LASSERT(tgt->lut_client_bitmap != NULL);
LASSERTF(idx >= 0, "%d\n", idx);
- if (!strcmp(ted->ted_lcd->lcd_uuid, tg->lut_obd->obd_uuid.uuid) ||
- (exp->exp_connect_flags & OBD_CONNECT_LIGHTWEIGHT) != 0)
+ if (!strcmp(ted->ted_lcd->lcd_uuid, tgt->lut_obd->obd_uuid.uuid) ||
+ exp_connect_flags(exp) & OBD_CONNECT_LIGHTWEIGHT)
RETURN(0);
- if (cfs_test_and_set_bit(idx, tg->lut_client_bitmap)) {
+ if (test_and_set_bit(idx, tgt->lut_client_bitmap)) {
CERROR("%s: client %d: bit already set in bitmap!!\n",
- tg->lut_obd->obd_name, idx);
+ tgt->lut_obd->obd_name, idx);
LBUG();
}
CDEBUG(D_INFO, "%s: client at idx %d with UUID '%s' added\n",
- tg->lut_obd->obd_name, idx, ted->ted_lcd->lcd_uuid);
+ tgt->lut_obd->obd_name, idx, ted->ted_lcd->lcd_uuid);
ted->ted_lr_idx = idx;
- ted->ted_lr_off = tg->lut_lsd.lsd_client_start +
- idx * tg->lut_lsd.lsd_client_size;
+ ted->ted_lr_off = tgt->lut_lsd.lsd_client_start +
+ idx * tgt->lut_lsd.lsd_client_size;
- cfs_mutex_init(&ted->ted_lcd_lock);
+ mutex_init(&ted->ted_lcd_lock);
LASSERTF(ted->ted_lr_off > 0, "ted_lr_off = %llu\n", ted->ted_lr_off);
RETURN(0);
}
-EXPORT_SYMBOL(lut_client_add);
+EXPORT_SYMBOL(tgt_client_add);
-int lut_client_del(const struct lu_env *env, struct obd_export *exp)
+int tgt_client_del(const struct lu_env *env, struct obd_export *exp)
{
- struct tg_export_data *ted = &exp->exp_target_data;
- struct lu_target *tg = class_exp2tgt(exp);
- int rc;
+ struct tg_export_data *ted = &exp->exp_target_data;
+ struct lu_target *tgt = class_exp2tgt(exp);
+ int rc;
ENTRY;
/* XXX if lcd_uuid were a real obd_uuid, I could use obd_uuid_equals */
if (!strcmp((char *)ted->ted_lcd->lcd_uuid,
- (char *)tg->lut_obd->obd_uuid.uuid) ||
- (exp->exp_connect_flags & OBD_CONNECT_LIGHTWEIGHT) != 0)
+ (char *)tgt->lut_obd->obd_uuid.uuid) ||
+ exp_connect_flags(exp) & OBD_CONNECT_LIGHTWEIGHT)
RETURN(0);
CDEBUG(D_INFO, "%s: del client at idx %u, off %lld, UUID '%s'\n",
- tg->lut_obd->obd_name, ted->ted_lr_idx, ted->ted_lr_off,
+ tgt->lut_obd->obd_name, ted->ted_lr_idx, ted->ted_lr_off,
ted->ted_lcd->lcd_uuid);
/* Clear the bit _after_ zeroing out the client so we don't
race with filter_client_add and zero out new clients.*/
- if (!cfs_test_bit(ted->ted_lr_idx, tg->lut_client_bitmap)) {
+ if (!test_bit(ted->ted_lr_idx, tgt->lut_client_bitmap)) {
CERROR("%s: client %u: bit already clear in bitmap!!\n",
- tg->lut_obd->obd_name, ted->ted_lr_idx);
+ tgt->lut_obd->obd_name, ted->ted_lr_idx);
LBUG();
}
/* Make sure the server's last_transno is up to date.
* This should be done before zeroing client slot so last_transno will
* be in server data or in client data in case of failure */
- rc = lut_server_data_update(env, tg, 0);
+ rc = tgt_server_data_update(env, tgt, 0);
if (rc != 0) {
CERROR("%s: failed to update server data, skip client %s "
- "zeroing, rc %d\n", tg->lut_obd->obd_name,
+ "zeroing, rc %d\n", tgt->lut_obd->obd_name,
ted->ted_lcd->lcd_uuid, rc);
RETURN(rc);
}
- cfs_mutex_lock(&ted->ted_lcd_lock);
+ mutex_lock(&ted->ted_lcd_lock);
memset(ted->ted_lcd->lcd_uuid, 0, sizeof ted->ted_lcd->lcd_uuid);
- rc = lut_client_data_update(env, exp);
- cfs_mutex_unlock(&ted->ted_lcd_lock);
+ rc = tgt_client_data_update(env, exp);
+ mutex_unlock(&ted->ted_lcd_lock);
CDEBUG(rc == 0 ? D_INFO : D_ERROR,
"%s: zeroing out client %s at idx %u (%llu), rc %d\n",
- tg->lut_obd->obd_name, ted->ted_lcd->lcd_uuid,
+ tgt->lut_obd->obd_name, ted->ted_lcd->lcd_uuid,
ted->ted_lr_idx, ted->ted_lr_off, rc);
RETURN(rc);
}
-EXPORT_SYMBOL(lut_client_del);
+EXPORT_SYMBOL(tgt_client_del);
+
+/*
+ * last_rcvd & last_committed update callbacks
+ */
+int tgt_last_rcvd_update(const struct lu_env *env, struct lu_target *tgt,
+ struct dt_object *obj, __u64 opdata,
+ struct thandle *th, struct ptlrpc_request *req)
+{
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ struct tg_export_data *ted;
+ __u64 *transno_p;
+ int rc = 0;
+ bool lw_client, update = false;
+
+ ENTRY;
+
+ ted = &req->rq_export->exp_target_data;
+
+ lw_client = exp_connect_flags(req->rq_export) & OBD_CONNECT_LIGHTWEIGHT;
+ if (ted->ted_lr_idx < 0 && !lw_client)
+ /* ofd connect may cause transaction before export has
+ * last_rcvd slot */
+ RETURN(0);
+
+ tti->tti_transno = lustre_msg_get_transno(req->rq_reqmsg);
+
+ spin_lock(&tgt->lut_translock);
+ if (th->th_result != 0) {
+ if (tti->tti_transno != 0) {
+ CERROR("%s: replay transno "LPU64" failed: rc = %d\n",
+ tgt_name(tgt), tti->tti_transno, th->th_result);
+ }
+ } else if (tti->tti_transno == 0) {
+ tti->tti_transno = ++tgt->lut_last_transno;
+ } else {
+ /* should be replay */
+ if (tti->tti_transno > tgt->lut_last_transno)
+ tgt->lut_last_transno = tti->tti_transno;
+ }
+ spin_unlock(&tgt->lut_translock);
+
+ /** VBR: set new versions */
+ if (th->th_result == 0 && obj != NULL)
+ dt_version_set(env, obj, tti->tti_transno, th);
+
+ /* filling reply data */
+ CDEBUG(D_INODE, "transno = "LPU64", last_committed = "LPU64"\n",
+ tti->tti_transno, tgt->lut_obd->obd_last_committed);
+
+ req->rq_transno = tti->tti_transno;
+ lustre_msg_set_transno(req->rq_repmsg, tti->tti_transno);
+
+ /* if can't add callback, do sync write */
+ th->th_sync |= !!tgt_last_commit_cb_add(th, tgt, req->rq_export,
+ tti->tti_transno);
+
+ if (lw_client) {
+ /* All operations performed by LW clients are synchronous and
+ * we store the committed transno in the last_rcvd header */
+ spin_lock(&tgt->lut_translock);
+ if (tti->tti_transno > tgt->lut_lsd.lsd_last_transno) {
+ tgt->lut_lsd.lsd_last_transno = tti->tti_transno;
+ update = true;
+ }
+ spin_unlock(&tgt->lut_translock);
+ /* 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. */
+ } else if (ted->ted_lr_off == 0) {
+ CERROR("%s: client idx %d has offset %lld\n",
+ tgt_name(tgt), ted->ted_lr_idx, ted->ted_lr_off);
+ RETURN(-EINVAL);
+ }
+
+ /* if the export has already been disconnected, we have no last_rcvd
+ * slot, update server data with latest transno then */
+ if (ted->ted_lcd == NULL) {
+ CWARN("commit transaction for disconnected client %s: rc %d\n",
+ req->rq_export->exp_client_uuid.uuid, rc);
+ GOTO(srv_update, rc = 0);
+ }
+
+ mutex_lock(&ted->ted_lcd_lock);
+ LASSERT(ergo(tti->tti_transno == 0, th->th_result != 0));
+ if (lustre_msg_get_opc(req->rq_reqmsg) == MDS_CLOSE ||
+ lustre_msg_get_opc(req->rq_reqmsg) == MDS_DONE_WRITING) {
+ transno_p = &ted->ted_lcd->lcd_last_close_transno;
+ ted->ted_lcd->lcd_last_close_xid = req->rq_xid;
+ ted->ted_lcd->lcd_last_close_result = th->th_result;
+ } else {
+ /* VBR: save versions in last_rcvd for reconstruct. */
+ __u64 *pre_versions = lustre_msg_get_versions(req->rq_repmsg);
+
+ if (pre_versions) {
+ ted->ted_lcd->lcd_pre_versions[0] = pre_versions[0];
+ ted->ted_lcd->lcd_pre_versions[1] = pre_versions[1];
+ ted->ted_lcd->lcd_pre_versions[2] = pre_versions[2];
+ ted->ted_lcd->lcd_pre_versions[3] = pre_versions[3];
+ }
+ transno_p = &ted->ted_lcd->lcd_last_transno;
+ ted->ted_lcd->lcd_last_xid = req->rq_xid;
+ ted->ted_lcd->lcd_last_result = th->th_result;
+ /* XXX: lcd_last_data is __u32 but intent_dispostion is __u64,
+ * see struct ldlm_reply->lock_policy_res1; */
+ ted->ted_lcd->lcd_last_data = opdata;
+ }
+
+ /* Update transno in slot only if non-zero number, i.e. no errors */
+ if (likely(tti->tti_transno != 0)) {
+ if (*transno_p > tti->tti_transno &&
+ !tgt->lut_no_reconstruct) {
+ CERROR("%s: trying to overwrite bigger transno:"
+ "on-disk: "LPU64", new: "LPU64" replay: %d. "
+ "see LU-617.\n", tgt_name(tgt), *transno_p,
+ tti->tti_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);
+ }
+ *transno_p = tti->tti_transno;
+ }
+
+ if (!lw_client) {
+ tti->tti_off = ted->ted_lr_off;
+ rc = tgt_client_data_write(env, tgt, ted->ted_lcd, &tti->tti_off, th);
+ if (rc < 0) {
+ mutex_unlock(&ted->ted_lcd_lock);
+ RETURN(rc);
+ }
+ }
+ mutex_unlock(&ted->ted_lcd_lock);
+ EXIT;
+srv_update:
+ if (update)
+ rc = tgt_server_data_write(env, tgt, th);
+ return rc;
+}
+
+/*
+ * last_rcvd update for echo client simulation.
+ * It updates last_rcvd client slot and version of object in
+ * simple way but with all locks to simulate all drawbacks
+ */
+int tgt_last_rcvd_update_echo(const struct lu_env *env, struct lu_target *tgt,
+ struct dt_object *obj, struct thandle *th,
+ struct obd_export *exp)
+{
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ struct tg_export_data *ted = &exp->exp_target_data;
+ int rc = 0;
+
+ ENTRY;
+
+ tti->tti_transno = 0;
+
+ spin_lock(&tgt->lut_translock);
+ if (th->th_result == 0)
+ tti->tti_transno = ++tgt->lut_last_transno;
+ spin_unlock(&tgt->lut_translock);
+
+ /** VBR: set new versions */
+ if (th->th_result == 0 && obj != NULL)
+ dt_version_set(env, obj, tti->tti_transno, th);
+
+ /* if can't add callback, do sync write */
+ th->th_sync |= !!tgt_last_commit_cb_add(th, tgt, exp,
+ tti->tti_transno);
+
+ LASSERT(ted->ted_lr_off > 0);
+
+ mutex_lock(&ted->ted_lcd_lock);
+ LASSERT(ergo(tti->tti_transno == 0, th->th_result != 0));
+ ted->ted_lcd->lcd_last_transno = tti->tti_transno;
+ ted->ted_lcd->lcd_last_result = th->th_result;
+
+ tti->tti_off = ted->ted_lr_off;
+ rc = tgt_client_data_write(env, tgt, ted->ted_lcd, &tti->tti_off, th);
+ mutex_unlock(&ted->ted_lcd_lock);
+ RETURN(rc);
+}
+
+int tgt_clients_data_init(const struct lu_env *env, struct lu_target *tgt,
+ unsigned long last_size)
+{
+ struct obd_device *obd = tgt->lut_obd;
+ struct lr_server_data *lsd = &tgt->lut_lsd;
+ struct lsd_client_data *lcd = NULL;
+ struct tg_export_data *ted;
+ int cl_idx;
+ int rc = 0;
+ loff_t off = lsd->lsd_client_start;
+
+ ENTRY;
+
+ CLASSERT(offsetof(struct lsd_client_data, lcd_padding) +
+ sizeof(lcd->lcd_padding) == LR_CLIENT_SIZE);
+
+ OBD_ALLOC_PTR(lcd);
+ if (lcd == NULL)
+ RETURN(-ENOMEM);
+
+ for (cl_idx = 0; off < last_size; cl_idx++) {
+ struct obd_export *exp;
+ __u64 last_transno;
+
+ /* Don't assume off is incremented properly by
+ * read_record(), in case sizeof(*lcd)
+ * isn't the same as fsd->lsd_client_size. */
+ off = lsd->lsd_client_start + cl_idx * lsd->lsd_client_size;
+ rc = tgt_client_data_read(env, tgt, lcd, &off, cl_idx);
+ if (rc) {
+ CERROR("%s: error reading last_rcvd %s idx %d off "
+ "%llu: rc = %d\n", tgt_name(tgt), LAST_RCVD,
+ cl_idx, off, rc);
+ rc = 0;
+ break; /* read error shouldn't cause startup to fail */
+ }
+
+ if (lcd->lcd_uuid[0] == '\0') {
+ CDEBUG(D_INFO, "skipping zeroed client at offset %d\n",
+ cl_idx);
+ continue;
+ }
+
+ last_transno = lcd_last_transno(lcd);
+
+ /* These exports are cleaned up by disconnect, so they
+ * need to be set up like real exports as connect does.
+ */
+ CDEBUG(D_HA, "RCVRNG CLIENT uuid: %s idx: %d lr: "LPU64
+ " srv lr: "LPU64" lx: "LPU64"\n", lcd->lcd_uuid, cl_idx,
+ last_transno, lsd->lsd_last_transno, lcd_last_xid(lcd));
+
+ exp = class_new_export(obd, (struct obd_uuid *)lcd->lcd_uuid);
+ if (IS_ERR(exp)) {
+ if (PTR_ERR(exp) == -EALREADY) {
+ /* export already exists, zero out this one */
+ CERROR("%s: Duplicate export %s!\n",
+ tgt_name(tgt), lcd->lcd_uuid);
+ continue;
+ }
+ GOTO(err_out, rc = PTR_ERR(exp));
+ }
+
+ ted = &exp->exp_target_data;
+ *ted->ted_lcd = *lcd;
+
+ rc = tgt_client_add(env, exp, cl_idx);
+ LASSERTF(rc == 0, "rc = %d\n", rc); /* can't fail existing */
+ /* VBR: set export last committed version */
+ exp->exp_last_committed = last_transno;
+ spin_lock(&exp->exp_lock);
+ exp->exp_connecting = 0;
+ exp->exp_in_recovery = 0;
+ spin_unlock(&exp->exp_lock);
+ obd->obd_max_recoverable_clients++;
+ class_export_put(exp);
+
+ /* Need to check last_rcvd even for duplicated exports. */
+ CDEBUG(D_OTHER, "client at idx %d has last_transno = "LPU64"\n",
+ cl_idx, last_transno);
+
+ spin_lock(&tgt->lut_translock);
+ tgt->lut_last_transno = max(last_transno,
+ tgt->lut_last_transno);
+ spin_unlock(&tgt->lut_translock);
+ }
+
+err_out:
+ OBD_FREE_PTR(lcd);
+ RETURN(rc);
+}
+
+struct server_compat_data {
+ __u32 rocompat;
+ __u32 incompat;
+ __u32 rocinit;
+ __u32 incinit;
+};
+
+static struct server_compat_data tgt_scd[] = {
+ [LDD_F_SV_TYPE_MDT] = {
+ .rocompat = OBD_ROCOMPAT_LOVOBJID,
+ .incompat = OBD_INCOMPAT_MDT | OBD_INCOMPAT_COMMON_LR |
+ OBD_INCOMPAT_FID | OBD_INCOMPAT_IAM_DIR |
+ OBD_INCOMPAT_LMM_VER | OBD_INCOMPAT_MULTI_OI,
+ .rocinit = OBD_ROCOMPAT_LOVOBJID,
+ .incinit = OBD_INCOMPAT_MDT | OBD_INCOMPAT_COMMON_LR |
+ OBD_INCOMPAT_MULTI_OI,
+ },
+ [LDD_F_SV_TYPE_OST] = {
+ .rocompat = 0,
+ .incompat = OBD_INCOMPAT_OST | OBD_INCOMPAT_COMMON_LR |
+ OBD_INCOMPAT_FID,
+ .rocinit = 0,
+ .incinit = OBD_INCOMPAT_OST | OBD_INCOMPAT_COMMON_LR,
+ }
+};
+
+int tgt_server_data_init(const struct lu_env *env, struct lu_target *tgt)
+{
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ struct lr_server_data *lsd = &tgt->lut_lsd;
+ unsigned long last_rcvd_size;
+ __u32 index;
+ int rc, type;
+
+ rc = dt_attr_get(env, tgt->lut_last_rcvd, &tti->tti_attr, BYPASS_CAPA);
+ if (rc)
+ RETURN(rc);
+
+ last_rcvd_size = (unsigned long)tti->tti_attr.la_size;
+
+ /* ensure padding in the struct is the correct size */
+ CLASSERT(offsetof(struct lr_server_data, lsd_padding) +
+ sizeof(lsd->lsd_padding) == LR_SERVER_SIZE);
+
+ rc = server_name2index(tgt_name(tgt), &index, NULL);
+ if (rc < 0) {
+ CERROR("%s: Can not get index from name: rc = %d\n",
+ tgt_name(tgt), rc);
+ RETURN(rc);
+ }
+ /* server_name2index() returns type */
+ type = rc;
+ if (type != LDD_F_SV_TYPE_MDT && type != LDD_F_SV_TYPE_OST) {
+ CERROR("%s: unknown target type %x\n", tgt_name(tgt), type);
+ RETURN(-EINVAL);
+ }
+
+ /* last_rcvd on OST doesn't provide reconstruct support because there
+ * may be up to 8 in-flight write requests per single slot in
+ * last_rcvd client data
+ */
+ tgt->lut_no_reconstruct = (type == LDD_F_SV_TYPE_OST);
+
+ if (last_rcvd_size == 0) {
+ LCONSOLE_WARN("%s: new disk, initializing\n", tgt_name(tgt));
+
+ memcpy(lsd->lsd_uuid, tgt->lut_obd->obd_uuid.uuid,
+ sizeof(lsd->lsd_uuid));
+ lsd->lsd_last_transno = 0;
+ lsd->lsd_mount_count = 0;
+ lsd->lsd_server_size = LR_SERVER_SIZE;
+ lsd->lsd_client_start = LR_CLIENT_START;
+ lsd->lsd_client_size = LR_CLIENT_SIZE;
+ lsd->lsd_subdir_count = OBJ_SUBDIR_COUNT;
+ lsd->lsd_osd_index = index;
+ lsd->lsd_feature_rocompat = tgt_scd[type].rocinit;
+ lsd->lsd_feature_incompat = tgt_scd[type].incinit;
+ } else {
+ rc = tgt_server_data_read(env, tgt);
+ if (rc) {
+ CERROR("%s: error reading LAST_RCVD: rc= %d\n",
+ tgt_name(tgt), rc);
+ RETURN(rc);
+ }
+ if (strcmp(lsd->lsd_uuid, tgt->lut_obd->obd_uuid.uuid)) {
+ LCONSOLE_ERROR_MSG(0x157, "Trying to start OBD %s "
+ "using the wrong disk %s. Were the"
+ " /dev/ assignments rearranged?\n",
+ tgt->lut_obd->obd_uuid.uuid,
+ lsd->lsd_uuid);
+ RETURN(-EINVAL);
+ }
+
+ if (lsd->lsd_osd_index != index) {
+ LCONSOLE_ERROR_MSG(0x157, "%s: index %d in last rcvd "
+ "is different with the index %d in"
+ "config log, It might be disk"
+ "corruption!\n", tgt_name(tgt),
+ lsd->lsd_osd_index, index);
+ RETURN(-EINVAL);
+ }
+ }
+
+ if (lsd->lsd_feature_incompat & ~tgt_scd[type].incompat) {
+ CERROR("%s: unsupported incompat filesystem feature(s) %x\n",
+ tgt_name(tgt),
+ lsd->lsd_feature_incompat & ~tgt_scd[type].incompat);
+ RETURN(-EINVAL);
+ }
+ if (lsd->lsd_feature_rocompat & ~tgt_scd[type].rocompat) {
+ CERROR("%s: unsupported read-only filesystem feature(s) %x\n",
+ tgt_name(tgt),
+ lsd->lsd_feature_rocompat & ~tgt_scd[type].rocompat);
+ RETURN(-EINVAL);
+ }
+ /** Interop: evict all clients at first boot with 1.8 last_rcvd */
+ if (type == LDD_F_SV_TYPE_MDT &&
+ !(lsd->lsd_feature_compat & OBD_COMPAT_20)) {
+ if (last_rcvd_size > lsd->lsd_client_start) {
+ LCONSOLE_WARN("%s: mounting at first time on 1.8 FS, "
+ "remove all clients for interop needs\n",
+ tgt_name(tgt));
+ rc = tgt_truncate_last_rcvd(env, tgt,
+ lsd->lsd_client_start);
+ if (rc)
+ RETURN(rc);
+ last_rcvd_size = lsd->lsd_client_start;
+ }
+ /** set 2.0 flag to upgrade/downgrade between 1.8 and 2.0 */
+ lsd->lsd_feature_compat |= OBD_COMPAT_20;
+ }
+
+ lsd->lsd_feature_incompat |= OBD_INCOMPAT_FID;
+
+ spin_lock(&tgt->lut_translock);
+ tgt->lut_last_transno = lsd->lsd_last_transno;
+ spin_unlock(&tgt->lut_translock);
+
+ lsd->lsd_mount_count++;
+
+ CDEBUG(D_INODE, "=======,=BEGIN DUMPING LAST_RCVD========\n");
+ CDEBUG(D_INODE, "%s: server last_transno: "LPU64"\n",
+ tgt_name(tgt), tgt->lut_last_transno);
+ CDEBUG(D_INODE, "%s: server mount_count: "LPU64"\n",
+ tgt_name(tgt), lsd->lsd_mount_count);
+ CDEBUG(D_INODE, "%s: server data size: %u\n",
+ tgt_name(tgt), lsd->lsd_server_size);
+ CDEBUG(D_INODE, "%s: per-client data start: %u\n",
+ tgt_name(tgt), lsd->lsd_client_start);
+ CDEBUG(D_INODE, "%s: per-client data size: %u\n",
+ tgt_name(tgt), lsd->lsd_client_size);
+ CDEBUG(D_INODE, "%s: last_rcvd size: %lu\n",
+ tgt_name(tgt), last_rcvd_size);
+ CDEBUG(D_INODE, "%s: server subdir_count: %u\n",
+ tgt_name(tgt), lsd->lsd_subdir_count);
+ CDEBUG(D_INODE, "%s: last_rcvd clients: %lu\n", tgt_name(tgt),
+ last_rcvd_size <= lsd->lsd_client_start ? 0 :
+ (last_rcvd_size - lsd->lsd_client_start) /
+ lsd->lsd_client_size);
+ CDEBUG(D_INODE, "========END DUMPING LAST_RCVD========\n");
+
+ if (lsd->lsd_server_size == 0 || lsd->lsd_client_start == 0 ||
+ lsd->lsd_client_size == 0) {
+ CERROR("%s: bad last_rcvd contents!\n", tgt_name(tgt));
+ RETURN(-EINVAL);
+ }
+
+ if (!tgt->lut_obd->obd_replayable)
+ CWARN("%s: recovery support OFF\n", tgt_name(tgt));
+
+ rc = tgt_clients_data_init(env, tgt, last_rcvd_size);
+ if (rc < 0)
+ GOTO(err_client, rc);
+
+ spin_lock(&tgt->lut_translock);
+ /* obd_last_committed is used for compatibility
+ * with other lustre recovery code */
+ tgt->lut_obd->obd_last_committed = tgt->lut_last_transno;
+ spin_unlock(&tgt->lut_translock);
+
+ tgt->lut_obd->u.obt.obt_mount_count = lsd->lsd_mount_count;
+ tgt->lut_obd->u.obt.obt_instance = (__u32)lsd->lsd_mount_count;
+
+ /* save it, so mount count and last_transno is current */
+ rc = tgt_server_data_update(env, tgt, 0);
+ if (rc < 0)
+ GOTO(err_client, rc);
+
+ RETURN(0);
+
+err_client:
+ class_disconnect_exports(tgt->lut_obd);
+ return rc;
+}
+
+/* add credits for last_rcvd update */
+int tgt_txn_start_cb(const struct lu_env *env, struct thandle *th,
+ void *cookie)
+{
+ struct lu_target *tgt = cookie;
+ struct tgt_session_info *tsi;
+ int rc;
+
+ /* if there is no session, then this transaction is not result of
+ * request processing but some local operation */
+ if (env->le_ses == NULL)
+ return 0;
+
+ LASSERT(tgt->lut_last_rcvd);
+ tsi = tgt_ses_info(env);
+ /* OFD may start transaction without export assigned */
+ if (tsi->tsi_exp == NULL)
+ return 0;
+
+ rc = dt_declare_record_write(env, tgt->lut_last_rcvd,
+ sizeof(struct lsd_client_data),
+ tsi->tsi_exp->exp_target_data.ted_lr_off,
+ th);
+ if (rc)
+ return rc;
+
+ rc = dt_declare_record_write(env, tgt->lut_last_rcvd,
+ sizeof(struct lr_server_data), 0, th);
+ if (rc)
+ return rc;
+
+ if (tsi->tsi_vbr_obj != NULL &&
+ !lu_object_remote(&tsi->tsi_vbr_obj->do_lu))
+ rc = dt_declare_version_set(env, tsi->tsi_vbr_obj, th);
+
+ return rc;
+}
+
+/* Update last_rcvd records with latests transaction data */
+int tgt_txn_stop_cb(const struct lu_env *env, struct thandle *th,
+ void *cookie)
+{
+ struct lu_target *tgt = cookie;
+ struct tgt_session_info *tsi;
+ struct tgt_thread_info *tti = tgt_th_info(env);
+ struct dt_object *obj = NULL;
+ int rc;
+ bool echo_client;
+
+ if (env->le_ses == NULL)
+ return 0;
+
+ tsi = tgt_ses_info(env);
+ /* OFD may start transaction without export assigned */
+ if (tsi->tsi_exp == NULL)
+ return 0;
+
+ echo_client = (tgt_ses_req(tsi) == NULL);
+
+ if (tti->tti_has_trans && !echo_client) {
+ if (tti->tti_mult_trans == 0) {
+ CDEBUG(D_HA, "More than one transaction "LPU64"\n",
+ tti->tti_transno);
+ RETURN(0);
+ }
+ /* we need another transno to be assigned */
+ tti->tti_transno = 0;
+ } else if (th->th_result == 0) {
+ tti->tti_has_trans = 1;
+ }
+
+ if (tsi->tsi_vbr_obj != NULL &&
+ !lu_object_remote(&tsi->tsi_vbr_obj->do_lu)) {
+ obj = tsi->tsi_vbr_obj;
+ }
+
+ if (unlikely(echo_client)) /* echo client special case */
+ rc = tgt_last_rcvd_update_echo(env, tgt, obj, th,
+ tsi->tsi_exp);
+ else
+ rc = tgt_last_rcvd_update(env, tgt, obj, tsi->tsi_opdata, th,
+ tgt_ses_req(tsi));
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff