-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Pershin Mike <tappro@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include "mdt_internal.h"
-static int mdt_server_data_update(const struct lu_env *env,
- struct mdt_device *mdt);
-
struct lu_buf *mdt_buf(const struct lu_env *env, void *area, ssize_t len)
{
struct lu_buf *buf;
return buf;
}
-static inline int mdt_trans_credit_get(const struct lu_env *env,
- struct mdt_device *mdt,
- enum mdt_txn_op op)
-{
- struct dt_device *dev = mdt->mdt_bottom;
- int cr;
- switch (op) {
- case MDT_TXN_CAPA_KEYS_WRITE_OP:
- case MDT_TXN_LAST_RCVD_WRITE_OP:
- cr = dev->dd_ops->dt_credit_get(env,
- dev,
- DTO_WRITE_BLOCK);
- break;
- default:
- LBUG();
- }
- return cr;
-}
-
-void mdt_trans_credit_init(const struct lu_env *env,
- struct mdt_device *mdt,
- enum mdt_txn_op op)
-{
- struct mdt_thread_info *mti;
- struct txn_param *p;
- int cr;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- p = &mti->mti_txn_param;
-
- cr = mdt_trans_credit_get(env, mdt, op);
- txn_param_init(p, cr);
-}
-
-struct thandle* mdt_trans_start(const struct lu_env *env,
- struct mdt_device *mdt)
-{
- struct mdt_thread_info *mti;
- struct txn_param *p;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- p = &mti->mti_txn_param;
-
- /* export can require sync operations */
- if (mti->mti_exp != NULL)
- p->tp_sync = mti->mti_exp->exp_need_sync;
-
- return mdt->mdt_bottom->dd_ops->dt_trans_start(env, mdt->mdt_bottom, p);
-}
-
void mdt_trans_stop(const struct lu_env *env,
struct mdt_device *mdt, struct thandle *th)
{
- mdt->mdt_bottom->dd_ops->dt_trans_stop(env, th);
-}
-
-static inline int mdt_last_rcvd_header_read(const struct lu_env *env,
- struct mdt_device *mdt)
-{
- struct mdt_thread_info *mti;
- int rc;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
-
- mti->mti_off = 0;
- rc = dt_record_read(env, mdt->mdt_lut.lut_last_rcvd,
- mdt_buf(env, &mti->mti_lsd, sizeof(mti->mti_lsd)),
- &mti->mti_off);
- if (rc == 0)
- lsd_le_to_cpu(&mti->mti_lsd, &mdt->mdt_lut.lut_lsd);
-
- CDEBUG(D_INFO, "read last_rcvd header rc = %d, uuid = %s, "
- "last_transno = "LPU64"\n", rc, mdt->mdt_lut.lut_lsd.lsd_uuid,
- mdt->mdt_lut.lut_lsd.lsd_last_transno);
- return rc;
-}
-
-static int mdt_last_rcvd_header_write(const struct lu_env *env,
- struct mdt_device *mdt,
- struct thandle *th)
-{
- struct mdt_thread_info *mti;
- int rc;
- ENTRY;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
-
- mti->mti_off = 0;
- lsd_cpu_to_le(&mdt->mdt_lut.lut_lsd, &mti->mti_lsd);
-
- rc = dt_record_write(env, mdt->mdt_lut.lut_last_rcvd,
- mdt_buf_const(env, &mti->mti_lsd,
- sizeof(mti->mti_lsd)),
- &mti->mti_off, th);
-
- CDEBUG(D_INFO, "write last_rcvd header rc = %d, uuid = %s, "
- "last_transno = "LPU64"\n", rc, mdt->mdt_lut.lut_lsd.lsd_uuid,
- mdt->mdt_lut.lut_lsd.lsd_last_transno);
-
- RETURN(rc);
-}
-
-static int mdt_last_rcvd_read(const struct lu_env *env, struct mdt_device *mdt,
- struct lsd_client_data *lcd, loff_t *off,
- int index)
-{
- struct mdt_thread_info *mti;
- struct lsd_client_data *tmp;
- int rc;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- tmp = &mti->mti_lcd;
- rc = dt_record_read(env, mdt->mdt_lut.lut_last_rcvd,
- mdt_buf(env, tmp, sizeof(*tmp)), off);
- if (rc == 0) {
- check_lcd(mdt2obd_dev(mdt)->obd_name, index, tmp);
- lcd_le_to_cpu(tmp, lcd);
- }
-
- CDEBUG(D_INFO, "read lcd @%d rc = %d, 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\n", (int)(*off - sizeof(*tmp)),
- rc, 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);
- return rc;
-}
-
-static int mdt_last_rcvd_write(const struct lu_env *env,
- struct mdt_device *mdt,
- struct lsd_client_data *lcd,
- loff_t *off, struct thandle *th)
-{
- struct mdt_thread_info *mti;
- struct lsd_client_data *tmp;
- int rc;
-
- LASSERT(th != NULL);
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- tmp = &mti->mti_lcd;
-
- lcd_cpu_to_le(lcd, tmp);
-
- rc = dt_record_write(env, mdt->mdt_lut.lut_last_rcvd,
- mdt_buf_const(env, tmp, sizeof(*tmp)), off, th);
-
- CDEBUG(D_INFO, "write lcd @%d rc = %d, 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\n", (int)(*off - sizeof(*tmp)),
- rc, 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);
- return rc;
+ dt_trans_stop(env, mdt->mdt_bottom, th);
}
static int mdt_clients_data_init(const struct lu_env *env,
off = lsd->lsd_client_start +
cl_idx * lsd->lsd_client_size;
- rc = mdt_last_rcvd_read(env, mdt, lcd, &off, cl_idx);
+ rc = tgt_client_data_read(env, &mdt->mdt_lut, lcd, &off, cl_idx);
if (rc) {
CERROR("error reading MDS %s idx %d, off %llu: rc %d\n",
LAST_RCVD, cl_idx, off, rc);
mti->mti_exp = exp;
/* copy on-disk lcd to the export */
*exp->exp_target_data.ted_lcd = *lcd;
- rc = mdt_client_add(env, mdt, cl_idx);
+ rc = tgt_client_add(env, exp, cl_idx);
/* can't fail existing */
LASSERTF(rc == 0, "rc = %d\n", rc);
/* VBR: set export last committed version */
exp->exp_last_committed = last_transno;
- cfs_spin_lock(&exp->exp_lock);
- exp->exp_connecting = 0;
- exp->exp_in_recovery = 0;
- cfs_spin_unlock(&exp->exp_lock);
- obd->obd_max_recoverable_clients++;
- class_export_put(exp);
-
- CDEBUG(D_OTHER, "client at idx %d has last_transno="LPU64"\n",
- cl_idx, last_transno);
- /* protect __u64 value update */
- cfs_spin_lock(&mdt->mdt_lut.lut_translock);
- mdt->mdt_lut.lut_last_transno = max(last_transno,
- mdt->mdt_lut.lut_last_transno);
- cfs_spin_unlock(&mdt->mdt_lut.lut_translock);
+ 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);
+
+ CDEBUG(D_OTHER, "client at idx %d has last_transno ="LPU64"\n",
+ cl_idx, last_transno);
+ /* protect __u64 value update */
+ spin_lock(&mdt->mdt_lut.lut_translock);
+ mdt->mdt_lut.lut_last_transno = max(last_transno,
+ mdt->mdt_lut.lut_last_transno);
+ spin_unlock(&mdt->mdt_lut.lut_translock);
}
err_client:
struct mdt_thread_info *mti;
struct dt_object *obj;
struct lu_attr *la;
- struct lustre_disk_data *ldd;
unsigned long last_rcvd_size;
__u64 mount_count;
int rc;
la = &mti->mti_attr.ma_attr;
obj = mdt->mdt_lut.lut_last_rcvd;
- rc = obj->do_ops->do_attr_get(env, obj, la, BYPASS_CAPA);
+ rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
if (rc)
RETURN(rc);
lsd->lsd_client_size = LR_CLIENT_SIZE;
lsd->lsd_feature_compat = OBD_COMPAT_MDT;
lsd->lsd_feature_rocompat = OBD_ROCOMPAT_LOVOBJID;
- lsd->lsd_feature_incompat = OBD_INCOMPAT_MDT |
- OBD_INCOMPAT_COMMON_LR;
+ lsd->lsd_feature_incompat = OBD_INCOMPAT_MDT |
+ OBD_INCOMPAT_COMMON_LR |
+ OBD_INCOMPAT_MULTI_OI;
} else {
LCONSOLE_WARN("%s: used disk, loading\n", obd->obd_name);
- rc = mdt_last_rcvd_header_read(env, mdt);
+ rc = tgt_server_data_read(env, &mdt->mdt_lut);
if (rc) {
CERROR("error reading MDS %s: rc %d\n", LAST_RCVD, rc);
GOTO(out, rc);
}
mount_count = lsd->lsd_mount_count;
- ldd = lsi->lsi_ldd;
-
if (lsd->lsd_feature_incompat & ~MDT_INCOMPAT_SUPP) {
CERROR("%s: unsupported incompat filesystem feature(s) %x\n",
obd->obd_name,
LCONSOLE_WARN("Mounting %s at first time on 1.8 FS, "
"remove all clients for interop needs\n",
obd->obd_name);
- simple_truncate(lsi->lsi_srv_mnt->mnt_sb->s_root,
- lsi->lsi_srv_mnt, LAST_RCVD,
- lsd->lsd_client_start);
+ rc = tgt_truncate_last_rcvd(env, &mdt->mdt_lut,
+ lsd->lsd_client_start);
+ if (rc)
+ GOTO(out, 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;
}
- if (ldd->ldd_flags & LDD_F_IAM_DIR)
- lsd->lsd_feature_incompat |= OBD_INCOMPAT_IAM_DIR;
-
lsd->lsd_feature_incompat |= OBD_INCOMPAT_FID;
- cfs_spin_lock(&mdt->mdt_lut.lut_translock);
- mdt->mdt_lut.lut_last_transno = lsd->lsd_last_transno;
- cfs_spin_unlock(&mdt->mdt_lut.lut_translock);
+ spin_lock(&mdt->mdt_lut.lut_translock);
+ mdt->mdt_lut.lut_last_transno = lsd->lsd_last_transno;
+ spin_unlock(&mdt->mdt_lut.lut_translock);
CDEBUG(D_INODE, "========BEGIN DUMPING LAST_RCVD========\n");
CDEBUG(D_INODE, "%s: server last_transno: "LPU64"\n",
if (rc)
GOTO(err_client, rc);
- cfs_spin_lock(&mdt->mdt_lut.lut_translock);
- /* obd_last_committed is used for compatibility
- * with other lustre recovery code */
- obd->obd_last_committed = mdt->mdt_lut.lut_last_transno;
- cfs_spin_unlock(&mdt->mdt_lut.lut_translock);
+ spin_lock(&mdt->mdt_lut.lut_translock);
+ /* obd_last_committed is used for compatibility
+ * with other lustre recovery code */
+ obd->obd_last_committed = mdt->mdt_lut.lut_last_transno;
+ spin_unlock(&mdt->mdt_lut.lut_translock);
obd->u.obt.obt_mount_count = mount_count + 1;
+ obd->u.obt.obt_instance = (__u32)obd->u.obt.obt_mount_count;
lsd->lsd_mount_count = obd->u.obt.obt_mount_count;
/* save it, so mount count and last_transno is current */
- rc = mdt_server_data_update(env, mdt);
+ rc = tgt_server_data_update(env, &mdt->mdt_lut, 0);
if (rc)
GOTO(err_client, rc);
return rc;
}
-static int mdt_server_data_update(const struct lu_env *env,
- struct mdt_device *mdt)
-{
- struct mdt_thread_info *mti;
- struct thandle *th;
- int rc;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
-
- mdt_trans_credit_init(env, mdt, MDT_TXN_LAST_RCVD_WRITE_OP);
- th = mdt_trans_start(env, mdt);
- if (IS_ERR(th))
- RETURN(PTR_ERR(th));
-
- CDEBUG(D_SUPER, "MDS mount_count is "LPU64", last_transno is "LPU64"\n",
- mdt->mdt_lut.lut_obd->u.obt.obt_mount_count,
- mdt->mdt_lut.lut_last_transno);
-
- cfs_spin_lock(&mdt->mdt_lut.lut_translock);
- mdt->mdt_lut.lut_lsd.lsd_last_transno = mdt->mdt_lut.lut_last_transno;
- cfs_spin_unlock(&mdt->mdt_lut.lut_translock);
-
- rc = mdt_last_rcvd_header_write(env, mdt, th);
- mdt_trans_stop(env, mdt, th);
- return rc;
-}
-
-
-int mdt_client_new(const struct lu_env *env, struct mdt_device *mdt)
-{
- unsigned long *bitmap = mdt->mdt_lut.lut_client_bitmap;
- struct mdt_thread_info *mti;
- struct tg_export_data *ted;
- struct lr_server_data *lsd = &mdt->mdt_lut.lut_lsd;
- struct obd_device *obd = mdt2obd_dev(mdt);
- struct thandle *th;
- loff_t off;
- int rc;
- int cl_idx;
- ENTRY;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- LASSERT(mti != NULL);
-
- ted = &mti->mti_exp->exp_target_data;
-
- LASSERT(bitmap != NULL);
- if (!strcmp(ted->ted_lcd->lcd_uuid, obd->obd_uuid.uuid))
- RETURN(0);
-
- /* the bitmap operations can handle cl_idx > sizeof(long) * 8, so
- * there's no need for extra complication here
- */
- cfs_spin_lock(&mdt->mdt_lut.lut_client_bitmap_lock);
- cl_idx = cfs_find_first_zero_bit(bitmap, LR_MAX_CLIENTS);
- if (cl_idx >= LR_MAX_CLIENTS ||
- OBD_FAIL_CHECK(OBD_FAIL_MDS_CLIENT_ADD)) {
- CERROR("no room for %u clients - fix LR_MAX_CLIENTS\n",
- cl_idx);
- cfs_spin_unlock(&mdt->mdt_lut.lut_client_bitmap_lock);
- RETURN(-EOVERFLOW);
- }
- cfs_set_bit(cl_idx, bitmap);
- cfs_spin_unlock(&mdt->mdt_lut.lut_client_bitmap_lock);
-
- CDEBUG(D_INFO, "client at idx %d with UUID '%s' added\n",
- cl_idx, ted->ted_lcd->lcd_uuid);
-
- ted->ted_lr_idx = cl_idx;
- ted->ted_lr_off = lsd->lsd_client_start +
- (cl_idx * lsd->lsd_client_size);
- cfs_init_mutex(&ted->ted_lcd_lock);
-
- LASSERTF(ted->ted_lr_off > 0, "ted_lr_off = %llu\n", ted->ted_lr_off);
-
- /* Write new client data. */
- off = ted->ted_lr_off;
-
- if (OBD_FAIL_CHECK(OBD_FAIL_TGT_CLIENT_ADD))
- RETURN(-ENOSPC);
-
- mdt_trans_credit_init(env, mdt, MDT_TXN_LAST_RCVD_WRITE_OP);
-
- th = mdt_trans_start(env, mdt);
- if (IS_ERR(th))
- RETURN(PTR_ERR(th));
-
- /*
- * Until this operations will be committed the sync is needed
- * for this export. This should be done _after_ starting the
- * transaction so that many connecting clients will not bring
- * server down with lots of sync writes.
- */
- mdt_trans_add_cb(th, lut_cb_client, class_export_cb_get(mti->mti_exp));
- cfs_spin_lock(&mti->mti_exp->exp_lock);
- mti->mti_exp->exp_need_sync = 1;
- cfs_spin_unlock(&mti->mti_exp->exp_lock);
-
- rc = mdt_last_rcvd_write(env, mdt, ted->ted_lcd, &off, th);
- CDEBUG(D_INFO, "wrote client lcd at idx %u off %llu (len %u)\n",
- cl_idx, ted->ted_lr_off, (int)sizeof(*(ted->ted_lcd)));
- mdt_trans_stop(env, mdt, th);
-
- RETURN(rc);
-}
-
-/* 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).
- * Otherwise, we just have to read the data from the last_rcvd file and
- * we know its offset.
- *
- * It should not be possible to fail adding an existing client - otherwise
- * mdt_init_server_data() callsite needs to be fixed.
- */
-int mdt_client_add(const struct lu_env *env,
- struct mdt_device *mdt, int cl_idx)
-{
- struct mdt_thread_info *mti;
- struct tg_export_data *ted;
- unsigned long *bitmap = mdt->mdt_lut.lut_client_bitmap;
- struct obd_device *obd = mdt2obd_dev(mdt);
- struct lr_server_data *lsd = &mdt->mdt_lut.lut_lsd;
- int rc = 0;
- ENTRY;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- LASSERT(mti != NULL);
-
- ted = &mti->mti_exp->exp_target_data;
-
- LASSERT(bitmap != NULL);
- LASSERTF(cl_idx >= 0, "%d\n", cl_idx);
-
- if (!strcmp(ted->ted_lcd->lcd_uuid, obd->obd_uuid.uuid))
- RETURN(0);
-
- cfs_spin_lock(&mdt->mdt_lut.lut_client_bitmap_lock);
- if (cfs_test_and_set_bit(cl_idx, bitmap)) {
- CERROR("MDS client %d: bit already set in bitmap!!\n",
- cl_idx);
- LBUG();
- }
- cfs_spin_unlock(&mdt->mdt_lut.lut_client_bitmap_lock);
-
- CDEBUG(D_INFO, "client at idx %d with UUID '%s' added\n",
- cl_idx, ted->ted_lcd->lcd_uuid);
-
- ted->ted_lr_idx = cl_idx;
- ted->ted_lr_off = lsd->lsd_client_start +
- (cl_idx * lsd->lsd_client_size);
- cfs_init_mutex(&ted->ted_lcd_lock);
-
- LASSERTF(ted->ted_lr_off > 0, "ted_lr_off = %llu\n", ted->ted_lr_off);
-
- RETURN(rc);
-}
-
-int mdt_client_del(const struct lu_env *env, struct mdt_device *mdt)
-{
- struct mdt_thread_info *mti;
- struct tg_export_data *ted;
- struct obd_device *obd = mdt2obd_dev(mdt);
- struct obd_export *exp;
- struct thandle *th;
- loff_t off;
- int rc = 0;
- ENTRY;
-
- mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
- LASSERT(mti != NULL);
-
- exp = mti->mti_exp;
- ted = &exp->exp_target_data;
- if (!ted->ted_lcd)
- RETURN(0);
-
- /* XXX: If lcd_uuid were a real obd_uuid, I could use obd_uuid_equals */
- if (!strcmp(ted->ted_lcd->lcd_uuid, obd->obd_uuid.uuid))
- GOTO(free, 0);
-
- CDEBUG(D_INFO, "freeing client at idx %u, offset %lld\n",
- ted->ted_lr_idx, ted->ted_lr_off);
-
- off = ted->ted_lr_off;
-
- /*
- * Don't clear ted_lr_idx here as it is likely also unset. At worst we
- * leak a client slot that will be cleaned on the next recovery.
- */
- if (off <= 0) {
- CERROR("client idx %d has offset %lld\n",
- ted->ted_lr_idx, off);
- GOTO(free, rc = -EINVAL);
- }
-
- /*
- * Clear the bit _after_ zeroing out the client so we don't race with
- * mdt_client_add and zero out new clients.
- */
- if (!cfs_test_bit(ted->ted_lr_idx, mdt->mdt_lut.lut_client_bitmap)) {
- CERROR("MDT client %u: bit already clear in bitmap!!\n",
- 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 */
- mdt_server_data_update(env, mdt);
-
- mdt_trans_credit_init(env, mdt, MDT_TXN_LAST_RCVD_WRITE_OP);
- th = mdt_trans_start(env, mdt);
- if (IS_ERR(th))
- GOTO(free, rc = PTR_ERR(th));
-
- cfs_mutex_down(&ted->ted_lcd_lock);
- memset(ted->ted_lcd->lcd_uuid, 0, sizeof ted->ted_lcd->lcd_uuid);
- rc = mdt_last_rcvd_write(env, mdt, ted->ted_lcd, &off, th);
- cfs_mutex_up(&ted->ted_lcd_lock);
- mdt_trans_stop(env, mdt, th);
-
- CDEBUG(rc == 0 ? D_INFO : D_ERROR, "Zeroing out client idx %u in "
- "%s, rc %d\n", ted->ted_lr_idx, LAST_RCVD, rc);
- RETURN(0);
-free:
- return 0;
-}
-
/*
* last_rcvd & last_committed update callbacks
*/
ted = &req->rq_export->exp_target_data;
LASSERT(ted);
- cfs_mutex_down(&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) {
- cfs_mutex_up(&ted->ted_lcd_lock);
+ 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 = mdt_last_rcvd_header_write(mti->mti_env, mdt, th);
+ err = tgt_server_data_write(mti->mti_env, &mdt->mdt_lut, th);
RETURN(err);
}
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 (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 {
lcd->lcd_pre_versions[2] = pre_versions[2];
lcd->lcd_pre_versions[3] = pre_versions[3];
}
- if (mti->mti_transno != 0)
+ 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?
lcd->lcd_last_data = mti->mti_opdata;
}
- if (off <= 0) {
- CERROR("client idx %d has offset %lld\n", ted->ted_lr_idx, off);
- err = -EINVAL;
- } else {
- err = mdt_last_rcvd_write(mti->mti_env, mdt, lcd, &off, th);
- }
- cfs_mutex_up(&ted->ted_lcd_lock);
- RETURN(err);
+ if ((mti->mti_exp->exp_connect_flags & OBD_CONNECT_LIGHTWEIGHT) != 0) {
+ /* 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",
+ mdt2obd_dev(mdt)->obd_name, 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 txn_param *param, void *cookie)
+ struct thandle *th, void *cookie)
{
- struct mdt_device *mdt = cookie;
+ struct mdt_device *mdt = cookie;
+ struct mdt_thread_info *mti;
+ int rc;
+ ENTRY;
- param->tp_credits += mdt_trans_credit_get(env, mdt,
- MDT_TXN_LAST_RCVD_WRITE_OP);
- return 0;
-}
+ mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
-/* Set new object versions */
-static void mdt_version_set(struct mdt_thread_info *info)
-{
- if (info->mti_mos != NULL) {
- mo_version_set(info->mti_env, mdt_object_child(info->mti_mos),
- info->mti_transno);
- info->mti_mos = NULL;
- }
+ LASSERT(mdt->mdt_lut.lut_last_rcvd);
+ if (mti->mti_exp == NULL)
+ RETURN(0);
+
+ rc = dt_declare_record_write(env, mdt->mdt_lut.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,
+ sizeof(struct lr_server_data), 0, th);
+ if (rc)
+ return rc;
+
+ if (mti->mti_mos != NULL)
+ rc = dt_declare_version_set(env, mdt_obj2dt(mti->mti_mos), th);
+
+ return rc;
}
/* Update last_rcvd records with latests transaction data */
struct thandle *txn, void *cookie)
{
struct mdt_device *mdt = cookie;
- struct mdt_txn_info *txi;
struct mdt_thread_info *mti;
struct ptlrpc_request *req;
- /* transno in two contexts - for commit_cb and for thread */
- txi = lu_context_key_get(&txn->th_ctx, &mdt_txn_key);
mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
req = mdt_info_req(mti);
- if (mti->mti_mdt == NULL || req == NULL || mti->mti_no_need_trans) {
- txi->txi_transno = 0;
- mti->mti_no_need_trans = 0;
- return 0;
- }
+ if (mti->mti_mdt == NULL || req == NULL)
+ return 0;
if (mti->mti_has_trans) {
/* XXX: currently there are allowed cases, but the wrong cases
}
mti->mti_has_trans = 1;
- cfs_spin_lock(&mdt->mdt_lut.lut_translock);
+ 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);
+ CERROR("Replay transno "LPU64" failed: rc %d\n",
+ mti->mti_transno, txn->th_result);
+ return 0;
}
} else if (mti->mti_transno == 0) {
mti->mti_transno = ++ mdt->mdt_lut.lut_last_transno;
if (mti->mti_transno > mdt->mdt_lut.lut_last_transno)
mdt->mdt_lut.lut_last_transno = mti->mti_transno;
}
- cfs_spin_unlock(&mdt->mdt_lut.lut_translock);
+ spin_unlock(&mdt->mdt_lut.lut_translock);
/* sometimes the reply message has not been successfully packed */
LASSERT(req != NULL && req->rq_repmsg != NULL);
/** VBR: set new versions */
- if (txn->th_result == 0)
- mdt_version_set(mti);
+ if (txn->th_result == 0 && mti->mti_mos != NULL) {
+ dt_version_set(env, mdt_obj2dt(mti->mti_mos),
+ mti->mti_transno, txn);
+ mti->mti_mos = NULL;
+ }
/* filling reply data */
CDEBUG(D_INODE, "transno = "LPU64", last_committed = "LPU64"\n",
req->rq_transno = mti->mti_transno;
lustre_msg_set_transno(req->rq_repmsg, mti->mti_transno);
- /* save transno for the commit callback */
- txi->txi_transno = mti->mti_transno;
-
- /* add separate commit callback for transaction handling because we need
- * export as parameter */
- mdt_trans_add_cb(txn, lut_cb_last_committed,
- class_export_cb_get(mti->mti_exp));
-
+ /* 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);
}
-/* commit callback, need to update last_committed value */
-static int mdt_txn_commit_cb(const struct lu_env *env,
- struct thandle *txn, void *cookie)
-{
- struct mdt_device *mdt = cookie;
- struct mdt_txn_info *txi;
- int i;
-
- txi = lu_context_key_get(&txn->th_ctx, &mdt_txn_key);
-
- /* iterate through all additional callbacks */
- for (i = 0; i < txi->txi_cb_count; i++) {
- txi->txi_cb[i].lut_cb_func(&mdt->mdt_lut, txi->txi_transno,
- txi->txi_cb[i].lut_cb_data, 0);
- }
- return 0;
-}
-
int mdt_fs_setup(const struct lu_env *env, struct mdt_device *mdt,
struct obd_device *obd,
struct lustre_sb_info *lsi)
{
- struct lu_fid fid;
- struct dt_object *o;
int rc = 0;
ENTRY;
/* prepare transactions callbacks */
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 = mdt_txn_commit_cb;
+ mdt->mdt_txn_cb.dtc_txn_commit = NULL;
mdt->mdt_txn_cb.dtc_cookie = mdt;
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)
- RETURN(rc);
- o = dt_store_open(env, mdt->mdt_bottom, "", CAPA_KEYS, &fid);
- if (!IS_ERR(o)) {
- mdt->mdt_ck_obj = o;
- rc = mdt_capa_keys_init(env, mdt);
- if (rc)
- GOTO(put_ck_object, rc);
- } else {
- rc = PTR_ERR(o);
- CERROR("cannot open %s: rc = %d\n", CAPA_KEYS, rc);
- GOTO(disconnect_exports, rc);
- }
- RETURN(0);
-
-put_ck_object:
- lu_object_put(env, &o->do_lu);
- mdt->mdt_ck_obj = NULL;
-disconnect_exports:
- class_disconnect_exports(obd);
- return rc;
+ RETURN(rc);
}
void mdt_fs_cleanup(const struct lu_env *env, struct mdt_device *mdt)
/* reconstruction code */
static void mdt_steal_ack_locks(struct ptlrpc_request *req)
{
+ struct ptlrpc_service_part *svcpt;
struct obd_export *exp = req->rq_export;
cfs_list_t *tmp;
struct ptlrpc_reply_state *oldrep;
- struct ptlrpc_service *svc;
int i;
/* CAVEAT EMPTOR: spinlock order */
- cfs_spin_lock(&exp->exp_lock);
+ spin_lock(&exp->exp_lock);
cfs_list_for_each (tmp, &exp->exp_outstanding_replies) {
oldrep = cfs_list_entry(tmp, struct ptlrpc_reply_state,
rs_exp_list);
lustre_msg_get_opc(req->rq_reqmsg),
oldrep->rs_opc);
- svc = oldrep->rs_service;
- cfs_spin_lock (&svc->srv_lock);
+ svcpt = oldrep->rs_svcpt;
+ spin_lock(&svcpt->scp_rep_lock);
cfs_list_del_init (&oldrep->rs_exp_list);
- CWARN("Stealing %d locks from rs %p x"LPD64".t"LPD64
- " o%d NID %s\n",
- oldrep->rs_nlocks, oldrep,
- oldrep->rs_xid, oldrep->rs_transno, oldrep->rs_opc,
- libcfs_nid2str(exp->exp_connection->c_peer.nid));
+ CDEBUG(D_HA, "Stealing %d locks from rs %p x"LPD64".t"LPD64
+ " o%d NID %s\n",
+ oldrep->rs_nlocks, oldrep,
+ oldrep->rs_xid, oldrep->rs_transno, oldrep->rs_opc,
+ libcfs_nid2str(exp->exp_connection->c_peer.nid));
for (i = 0; i < oldrep->rs_nlocks; i++)
ptlrpc_save_lock(req, &oldrep->rs_locks[i],
oldrep->rs_nlocks = 0;
DEBUG_REQ(D_HA, req, "stole locks for");
- cfs_spin_lock(&oldrep->rs_lock);
- ptlrpc_schedule_difficult_reply (oldrep);
- cfs_spin_unlock(&oldrep->rs_lock);
-
- cfs_spin_unlock (&svc->srv_lock);
- break;
- }
- cfs_spin_unlock(&exp->exp_lock);
+ spin_lock(&oldrep->rs_lock);
+ ptlrpc_schedule_difficult_reply(oldrep);
+ spin_unlock(&oldrep->rs_lock);
+
+ spin_unlock(&svcpt->scp_rep_lock);
+ break;
+ }
+ spin_unlock(&exp->exp_lock);
}
/**
body = req_capsule_server_get(mti->mti_pill, &RMF_MDT_BODY);
mti->mti_attr.ma_need = MA_INODE;
mti->mti_attr.ma_valid = 0;
- rc = mo_attr_get(mti->mti_env, mdt_object_child(child), &mti->mti_attr);
+ rc = mdt_attr_get_complex(mti, child, &mti->mti_attr);
if (rc == -EREMOTE) {
/* object was created on remote server */
req->rq_status = rc;
}
mti->mti_attr.ma_need = MA_INODE;
mti->mti_attr.ma_valid = 0;
- mo_attr_get(mti->mti_env, mdt_object_child(obj), &mti->mti_attr);
+ mdt_attr_get_complex(mti, obj, &mti->mti_attr);
mdt_pack_attr2body(mti, body, &mti->mti_attr.ma_attr,
mdt_object_fid(obj));
if (mti->mti_ioepoch && (mti->mti_ioepoch->flags & MF_EPOCH_OPEN)) {
repbody = req_capsule_server_get(mti->mti_pill, &RMF_MDT_BODY);
repbody->ioepoch = obj->mot_ioepoch;
- cfs_spin_lock(&med->med_open_lock);
- cfs_list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
- if (mfd->mfd_xid == req->rq_xid)
- break;
- }
- LASSERT(&mfd->mfd_list != &med->med_open_head);
- cfs_spin_unlock(&med->med_open_lock);
- repbody->handle.cookie = mfd->mfd_handle.h_cookie;
- }
-
- mdt_object_put(mti->mti_env, obj);
+ spin_lock(&med->med_open_lock);
+ cfs_list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
+ if (mfd->mfd_xid == req->rq_xid)
+ break;
+ }
+ LASSERT(&mfd->mfd_list != &med->med_open_head);
+ spin_unlock(&med->med_open_lock);
+ repbody->handle.cookie = mfd->mfd_handle.h_cookie;
+ }
+
+ mdt_object_put(mti->mti_env, obj);
}
typedef void (*mdt_reconstructor)(struct mdt_thread_info *mti,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff