/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
+ * Copyright (C) 2002-2006 Cluster File Systems, Inc.
* Author: Phil Schwan <phil@clusterfs.com>
* Peter Braam <braam@clusterfs.com>
* Mike Shaver <shaver@clusterfs.com>
+ * Nathan Rutman <nathan@clusterfs.com>
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This file is part of the Lustre file system, http://www.lustre.org
+ * Lustre is a trademark of Cluster File Systems, Inc.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * You may have signed or agreed to another license before downloading
+ * this software. If so, you are bound by the terms and conditions
+ * of that agreement, and the following does not apply to you. See the
+ * LICENSE file included with this distribution for more information.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * If you did not agree to a different license, then this copy of Lustre
+ * is open source software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * In either case, Lustre is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * license text for more details.
*/
#ifndef EXPORT_SYMTAB
#endif
#define DEBUG_SUBSYSTEM S_LOV
#ifdef __KERNEL__
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/seq_file.h>
-#include <asm/div64.h>
+#include <libcfs/libcfs.h>
#else
#include <liblustre.h>
#endif
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_net.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_dlm.h>
-#include <linux/lustre_mds.h>
-#include <linux/obd_class.h>
-#include <linux/obd_lov.h>
-#include <linux/obd_ost.h>
-#include <linux/lprocfs_status.h>
-#include <linux/lustre_audit.h>
+#include <obd_support.h>
+#include <lustre_lib.h>
+#include <lustre_net.h>
+#include <lustre/lustre_idl.h>
+#include <lustre_dlm.h>
+#include <lustre_mds.h>
+#include <lustre_debug.h>
+#include <obd_class.h>
+#include <obd_lov.h>
+#include <obd_ost.h>
+#include <lprocfs_status.h>
+#include <lustre_param.h>
+
#include "lov_internal.h"
-/* obd methods */
+
+/* Keep a refcount of lov->tgt usage to prevent racing with addition/deletion.
+ Any function that expects lov_tgts to remain stationary must take a ref. */
+void lov_getref(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+
+ /* nobody gets through here until lov_putref is done */
+ mutex_down(&lov->lov_lock);
+ atomic_inc(&lov->lov_refcount);
+ mutex_up(&lov->lov_lock);
+ return;
+}
+
+static void __lov_del_obd(struct obd_device *obd, __u32 index);
+
+void lov_putref(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+ mutex_down(&lov->lov_lock);
+ /* ok to dec to 0 more than once -- ltd_exp's will be null */
+ if (atomic_dec_and_test(&lov->lov_refcount) && lov->lov_death_row) {
+ int i;
+ CDEBUG(D_CONFIG, "destroying %d lov targets\n",
+ lov->lov_death_row);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_reap)
+ continue;
+ /* Disconnect and delete from list */
+ __lov_del_obd(obd, i);
+ lov->lov_death_row--;
+ }
+ }
+ mutex_up(&lov->lov_lock);
+}
+
#define MAX_STRING_SIZE 128
-static int lov_connect_obd(struct obd_device *obd, struct lov_tgt_desc *tgt,
- int activate, struct obd_connect_data *conn_data,
- unsigned long connect_flags)
+static int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
+ struct obd_connect_data *data)
{
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_uuid tgt_uuid = lov->lov_tgts[index]->ltd_uuid;
+ struct obd_device *tgt_obd;
struct obd_uuid lov_osc_uuid = { "LOV_OSC_UUID" };
- struct obd_uuid *tgt_uuid = &tgt->uuid;
-
+ struct lustre_handle conn = {0, };
+ struct obd_import *imp;
#ifdef __KERNEL__
- struct proc_dir_entry *lov_proc_dir;
+ cfs_proc_dir_entry_t *lov_proc_dir;
#endif
- struct lov_obd *lov = &obd->u.lov;
- struct lustre_handle conn = {0, };
- struct obd_device *tgt_obd;
int rc;
ENTRY;
- tgt_obd = class_find_client_obd(tgt_uuid, OBD_OSC_DEVICENAME,
+ if (!lov->lov_tgts[index])
+ RETURN(-EINVAL);
+
+ tgt_obd = class_find_client_obd(&tgt_uuid, LUSTRE_OSC_NAME,
&obd->obd_uuid);
if (!tgt_obd) {
- CERROR("Target %s not attached\n", tgt_uuid->uuid);
+ CERROR("Target %s not attached\n", obd_uuid2str(&tgt_uuid));
RETURN(-EINVAL);
}
-
if (!tgt_obd->obd_set_up) {
- CERROR("Target %s not set up\n", tgt_uuid->uuid);
+ CERROR("Target %s not set up\n", obd_uuid2str(&tgt_uuid));
RETURN(-EINVAL);
}
+ if (data && (data->ocd_connect_flags & OBD_CONNECT_INDEX))
+ data->ocd_index = index;
+
+ /*
+ * Divine LOV knows that OBDs under it are OSCs.
+ */
+ imp = tgt_obd->u.cli.cl_import;
+
if (activate) {
tgt_obd->obd_no_recov = 0;
- ptlrpc_activate_import(tgt_obd->u.cli.cl_import);
+ /* FIXME this is probably supposed to be
+ ptlrpc_set_import_active. Horrible naming. */
+ ptlrpc_activate_import(imp);
}
- if (tgt_obd->u.cli.cl_import->imp_invalid) {
+ if (imp->imp_invalid) {
CERROR("not connecting OSC %s; administratively "
- "disabled\n", tgt_uuid->uuid);
+ "disabled\n", obd_uuid2str(&tgt_uuid));
rc = obd_register_observer(tgt_obd, obd);
if (rc) {
CERROR("Target %s register_observer error %d; "
"will not be able to reactivate\n",
- tgt_uuid->uuid, rc);
+ obd_uuid2str(&tgt_uuid), rc);
}
RETURN(0);
}
- rc = obd_connect(&conn, tgt_obd, &lov_osc_uuid, conn_data,
- connect_flags);
+ rc = obd_connect(NULL, &conn, tgt_obd, &lov_osc_uuid, data);
if (rc) {
- CERROR("Target %s connect error %d\n", tgt_uuid->uuid, rc);
+ CERROR("Target %s connect error %d\n",
+ obd_uuid2str(&tgt_uuid), rc);
RETURN(rc);
}
- tgt->ltd_exp = class_conn2export(&conn);
+ lov->lov_tgts[index]->ltd_exp = class_conn2export(&conn);
+ if (!lov->lov_tgts[index]->ltd_exp) {
+ CERROR("Target %s: null export!\n", obd_uuid2str(&tgt_uuid));
+ RETURN(-ENODEV);
+ }
rc = obd_register_observer(tgt_obd, obd);
if (rc) {
CERROR("Target %s register_observer error %d\n",
- tgt_uuid->uuid, rc);
- obd_disconnect(tgt->ltd_exp, 0);
- tgt->ltd_exp = NULL;
+ obd_uuid2str(&tgt_uuid), rc);
+ obd_disconnect(lov->lov_tgts[index]->ltd_exp);
+ lov->lov_tgts[index]->ltd_exp = NULL;
RETURN(rc);
}
- lov_tgt_set_flags(lov, tgt, LTD_ACTIVE);
+ lov->lov_tgts[index]->ltd_reap = 0;
+ if (activate) {
+ lov->lov_tgts[index]->ltd_active = 1;
+ lov->desc.ld_active_tgt_count++;
+ }
+ CDEBUG(D_CONFIG, "Connected tgt idx %d %s (%s) %sactive\n", index,
+ obd_uuid2str(&tgt_uuid), tgt_obd->obd_name, activate ? "":"in");
#ifdef __KERNEL__
lov_proc_dir = lprocfs_srch(obd->obd_proc_entry, "target_obds");
if (lov_proc_dir) {
struct obd_device *osc_obd = class_conn2obd(&conn);
- struct proc_dir_entry *osc_symlink;
- char name[MAX_STRING_SIZE + 1];
+ cfs_proc_dir_entry_t *osc_symlink;
+ char name[MAX_STRING_SIZE];
LASSERT(osc_obd != NULL);
- LASSERT(osc_obd->obd_type != NULL);
+ LASSERT(osc_obd->obd_magic == OBD_DEVICE_MAGIC);
LASSERT(osc_obd->obd_type->typ_name != NULL);
- name[MAX_STRING_SIZE] = '\0';
snprintf(name, MAX_STRING_SIZE, "../../../%s/%s",
osc_obd->obd_type->typ_name,
osc_obd->obd_name);
name);
if (osc_symlink == NULL) {
CERROR("could not register LOV target "
- "/proc/fs/lustre/%s/%s/target_obds/%s\n",
+ "/proc/fs/lustre/%s/%s/target_obds/%s.",
obd->obd_type->typ_name, obd->obd_name,
osc_obd->obd_name);
- lprocfs_remove(lov_proc_dir);
- lov_proc_dir = NULL;
+ lprocfs_remove(&lov_proc_dir);
}
}
#endif
+ rc = qos_add_tgt(obd, index);
+ if (rc)
+ CERROR("qos_add_tgt failed %d\n", rc);
+
RETURN(0);
}
-static int lov_connect(struct lustre_handle *conn, struct obd_device *obd,
- struct obd_uuid *cluuid, struct obd_connect_data *data,
- unsigned long flags)
+static int lov_connect(const struct lu_env *env,
+ struct lustre_handle *conn, struct obd_device *obd,
+ struct obd_uuid *cluuid, struct obd_connect_data *data)
{
-#ifdef __KERNEL__
- struct proc_dir_entry *lov_proc_dir;
-#endif
struct lov_obd *lov = &obd->u.lov;
struct lov_tgt_desc *tgt;
- struct obd_export *exp;
- int rc, rc2, i;
+ int i, rc;
ENTRY;
+ CDEBUG(D_CONFIG, "connect #%d\n", lov->lov_connects);
+
rc = class_connect(conn, obd, cluuid);
if (rc)
RETURN(rc);
- exp = class_conn2export(conn);
+ /* Why should there ever be more than 1 connect? */
+ lov->lov_connects++;
+ LASSERT(lov->lov_connects == 1);
- /* We don't want to actually do the underlying connections more than
- * once, so keep track. */
- lov->refcount++;
- if (lov->refcount > 1) {
- class_export_put(exp);
- RETURN(0);
- }
-
-#ifdef __KERNEL__
- lov_proc_dir = lprocfs_register("target_obds", obd->obd_proc_entry,
- NULL, NULL);
- if (IS_ERR(lov_proc_dir)) {
- CERROR("could not register /proc/fs/lustre/%s/%s/target_obds.",
- obd->obd_type->typ_name, obd->obd_name);
- lov_proc_dir = NULL;
- }
-#endif
+ memset(&lov->lov_ocd, 0, sizeof(lov->lov_ocd));
+ if (data)
+ lov->lov_ocd = *data;
- /* connect_flags is the MDS number, save for use in lov_add_obd */
- lov->lov_connect_flags = flags;
- for (i = 0, tgt = lov->tgts; i < lov->desc.ld_tgt_count; i++, tgt++) {
- if (obd_uuid_empty(&tgt->uuid))
+ lov_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ tgt = lov->lov_tgts[i];
+ if (!tgt || obd_uuid_empty(&tgt->ltd_uuid))
continue;
- rc = lov_connect_obd(obd, tgt, 0, data, flags);
- if (rc)
- GOTO(out_disc, rc);
+ /* Flags will be lowest common denominator */
+ rc = lov_connect_obd(obd, i, tgt->ltd_activate, &lov->lov_ocd);
+ if (rc) {
+ CERROR("%s: lov connect tgt %d failed: %d\n",
+ obd->obd_name, i, rc);
+ continue;
+ }
}
+ lov_putref(obd);
- class_export_put(exp);
- RETURN (0);
-
- out_disc:
-#ifdef __KERNEL__
- if (lov_proc_dir)
- lprocfs_remove(lov_proc_dir);
-#endif
-
- while (i-- > 0) {
- struct obd_uuid uuid;
- --tgt;
- lov_tgt_clear_flags(lov, tgt, LTD_ACTIVE);
-
- /* save for CERROR below; (we know it's terminated) */
- uuid = tgt->uuid;
- rc2 = obd_disconnect(tgt->ltd_exp, 0);
- if (rc2)
- CERROR("error: LOV target %s disconnect on OST idx %d: "
- "rc = %d\n", uuid.uuid, i, rc2);
- }
- class_disconnect(exp, 0);
- RETURN (rc);
+ RETURN(0);
}
-static int lov_disconnect_obd(struct obd_device *obd,
- struct lov_tgt_desc *tgt,
- unsigned long flags)
+static int lov_disconnect_obd(struct obd_device *obd, __u32 index)
{
-#ifdef __KERNEL__
- struct proc_dir_entry *lov_proc_dir;
-#endif
- struct obd_device *osc_obd = class_exp2obd(tgt->ltd_exp);
+ cfs_proc_dir_entry_t *lov_proc_dir;
struct lov_obd *lov = &obd->u.lov;
+ struct obd_device *osc_obd =
+ class_exp2obd(lov->lov_tgts[index]->ltd_exp);
int rc;
ENTRY;
-#ifdef __KERNEL__
+ CDEBUG(D_CONFIG, "%s: disconnecting target %s\n",
+ obd->obd_name, osc_obd->obd_name);
+
+ if (lov->lov_tgts[index]->ltd_active) {
+ lov->lov_tgts[index]->ltd_active = 0;
+ lov->desc.ld_active_tgt_count--;
+ }
+
lov_proc_dir = lprocfs_srch(obd->obd_proc_entry, "target_obds");
if (lov_proc_dir) {
- struct proc_dir_entry *osc_symlink;
+ cfs_proc_dir_entry_t *osc_symlink;
osc_symlink = lprocfs_srch(lov_proc_dir, osc_obd->obd_name);
if (osc_symlink) {
- lprocfs_remove(osc_symlink);
+ lprocfs_remove(&osc_symlink);
} else {
- CERROR("/proc/fs/lustre/%s/%s/target_obds/%s missing\n",
+ CERROR("/proc/fs/lustre/%s/%s/target_obds/%s missing.",
obd->obd_type->typ_name, obd->obd_name,
osc_obd->obd_name);
}
}
-#endif
- if (obd->obd_no_recov) {
+
+ if (osc_obd) {
/* Pass it on to our clients.
* XXX This should be an argument to disconnect,
* XXX not a back-door flag on the OBD. Ah well.
*/
- if (osc_obd)
- osc_obd->obd_no_recov = 1;
+ osc_obd->obd_force = obd->obd_force;
+ osc_obd->obd_fail = obd->obd_fail;
+ osc_obd->obd_no_recov = obd->obd_no_recov;
}
- /* XXX - shouldn't this be after the obd_disconnect() ? */
- obd_register_observer(tgt->ltd_exp->exp_obd, NULL);
+ obd_register_observer(osc_obd, NULL);
- rc = obd_disconnect(tgt->ltd_exp, flags);
+ rc = obd_disconnect(lov->lov_tgts[index]->ltd_exp);
if (rc) {
- if (lov_tgt_active(lov, tgt, 0)) {
- lov_tgt_decref(lov, tgt);
- CERROR("Target %s disconnect error %d\n",
- tgt->uuid.uuid, rc);
- }
+ CERROR("Target %s disconnect error %d\n",
+ lov_uuid2str(lov, index), rc);
+ rc = 0;
}
- CDEBUG(D_CONFIG, "idx: %d flags: 0x%x active: %d\n",
- tgt - lov->tgts, tgt->ltd_flags,
- lov->desc.ld_active_tgt_count);
+ qos_del_tgt(obd, index);
- lov_tgt_clear_flags(lov, tgt, LTD_ACTIVE);
- tgt->ltd_exp = NULL;
+ lov->lov_tgts[index]->ltd_exp = NULL;
RETURN(0);
}
-static int lov_disconnect(struct obd_export *exp, unsigned long flags)
+static int lov_del_target(struct obd_device *obd, __u32 index,
+ struct obd_uuid *uuidp, int gen);
+
+static int lov_disconnect(struct obd_export *exp)
{
struct obd_device *obd = class_exp2obd(exp);
-#ifdef __KERNEL__
- struct proc_dir_entry *lov_proc_dir;
-#endif
struct lov_obd *lov = &obd->u.lov;
- struct lov_tgt_desc *tgt;
- int rc, i;
+ int i, rc;
ENTRY;
- if (!lov->tgts)
- goto out_local;
+ if (!lov->lov_tgts)
+ goto out;
/* Only disconnect the underlying layers on the final disconnect. */
- lov->refcount--;
- if (lov->refcount != 0)
- goto out_local;
-
- for (i = 0, tgt = lov->tgts; i < lov->desc.ld_tgt_count; i++, tgt++) {
- if (tgt->ltd_exp)
- lov_disconnect_obd(obd, tgt, flags);
+ lov->lov_connects--;
+ if (lov->lov_connects != 0) {
+ /* why should there be more than 1 connect? */
+ CERROR("disconnect #%d\n", lov->lov_connects);
+ goto out;
+ }
+
+ /* Let's hold another reference so lov_del_obd doesn't spin through
+ putref every time */
+ lov_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (lov->lov_tgts[i] && lov->lov_tgts[i]->ltd_exp) {
+ /* Disconnection is the last we know about an obd */
+ lov_del_target(obd, i, 0, lov->lov_tgts[i]->ltd_gen);
+ }
}
+ lov_putref(obd);
-#ifdef __KERNEL__
- lov_proc_dir = lprocfs_srch(obd->obd_proc_entry, "target_obds");
- if (lov_proc_dir) {
- lprocfs_remove(lov_proc_dir);
- } else {
- CERROR("/proc/fs/lustre/%s/%s/target_obds missing.",
- obd->obd_type->typ_name, obd->obd_name);
- }
-#endif
-
- out_local:
- rc = class_disconnect(exp, 0);
+out:
+ rc = class_disconnect(exp); /* bz 9811 */
RETURN(rc);
}
* -ENOTCONN: The UUID is found, but the target connection is bad (!)
* -EBADF : The UUID is found, but the OBD is the wrong type (!)
*/
-static int lov_set_osc_active(struct lov_obd *lov, struct obd_uuid *uuid,
+static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
int activate)
{
+ struct lov_obd *lov = &obd->u.lov;
struct lov_tgt_desc *tgt;
int i, rc = 0;
ENTRY;
CDEBUG(D_INFO, "Searching in lov %p for uuid %s (activate=%d)\n",
lov, uuid->uuid, activate);
- lov_tgts_lock(lov);
- for (i = 0, tgt = lov->tgts; i < lov->desc.ld_tgt_count; i++, tgt++) {
- if (tgt->ltd_exp == NULL)
+ lov_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ tgt = lov->lov_tgts[i];
+ if (!tgt || !tgt->ltd_exp)
continue;
CDEBUG(D_INFO, "lov idx %d is %s conn "LPX64"\n",
- i, tgt->uuid.uuid, tgt->ltd_exp->exp_handle.h_cookie);
-
- if (obd_uuid_equals(uuid, &tgt->uuid))
+ i, obd_uuid2str(&tgt->ltd_uuid),
+ tgt->ltd_exp->exp_handle.h_cookie);
+ if (obd_uuid_equals(uuid, &tgt->ltd_uuid))
break;
}
if (i == lov->desc.ld_tgt_count)
GOTO(out, rc = -EINVAL);
- if (activate) {
- if (tgt->ltd_flags & LTD_ACTIVE) {
- CDEBUG(D_CONFIG|D_INFO, "OSC %s already active!\n",
- uuid->uuid);
- GOTO(out, rc);
- }
- CDEBUG(D_INFO, "Marking OSC %s active\n", uuid->uuid);
- tgt->ltd_flags |= LTD_ACTIVE;
+ if (lov->lov_tgts[i]->ltd_active == activate) {
+ CDEBUG(D_INFO, "OSC %s already %sactive!\n", uuid->uuid,
+ activate ? "" : "in");
+ GOTO(out, rc);
+ }
+
+ CDEBUG(D_CONFIG, "Marking OSC %s %sactive\n", obd_uuid2str(uuid),
+ activate ? "" : "in");
+
+ lov->lov_tgts[i]->ltd_active = activate;
+ if (activate)
lov->desc.ld_active_tgt_count++;
- } else {
- if ((tgt->ltd_flags & LTD_ACTIVE) == 0) {
- CDEBUG(D_CONFIG|D_INFO, "OSC %s already inactive!\n",
- uuid->uuid);
- GOTO(out, rc);
- }
- CDEBUG(D_INFO, "Marking OSC %s inactive\n", uuid->uuid);
- tgt->ltd_flags &= ~LTD_ACTIVE;
+ else
lov->desc.ld_active_tgt_count--;
- }
-
- EXIT;
+ /* remove any old qos penalty */
+ lov->lov_tgts[i]->ltd_qos.ltq_penalty = 0;
+
out:
- lov_tgts_unlock(lov);
- return rc;
+ lov_putref(obd);
+ RETURN(rc);
}
static int lov_notify(struct obd_device *obd, struct obd_device *watched,
- int active, void *data)
+ enum obd_notify_event ev, void *data)
{
- struct obd_uuid *uuid;
- int rc;
+ int rc = 0;
ENTRY;
- if (strcmp(watched->obd_type->typ_name, OBD_OSC_DEVICENAME)) {
- CERROR("unexpected notification of %s %s!\n",
- watched->obd_type->typ_name,
- watched->obd_name);
- return -EINVAL;
- }
-
- uuid = &watched->u.cli.cl_import->imp_target_uuid;
-
- /* Set OSC as active before notifying the observer, so the
- * observer can use the OSC normally.
- */
- rc = lov_set_osc_active(&obd->u.lov, uuid, active);
- if (rc) {
- CERROR("%sactivation of %s failed: %d\n",
- active ? "" : "de", uuid->uuid, rc);
- RETURN(rc);
- }
+ if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE) {
+ struct obd_uuid *uuid;
- if (obd->obd_observer)
- /* Pass the notification up the chain. */
- rc = obd_notify(obd->obd_observer, watched, active, data);
+ LASSERT(watched);
- RETURN(rc);
-}
-
-int lov_attach(struct obd_device *dev, obd_count len, void *data)
-{
- struct lprocfs_static_vars lvars;
- int rc;
+ if (strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) {
+ CERROR("unexpected notification of %s %s!\n",
+ watched->obd_type->typ_name,
+ watched->obd_name);
+ RETURN(-EINVAL);
+ }
+ uuid = &watched->u.cli.cl_target_uuid;
- lprocfs_init_vars(lov, &lvars);
- rc = lprocfs_obd_attach(dev, lvars.obd_vars);
- if (rc == 0) {
-#ifdef __KERNEL__
- struct proc_dir_entry *entry;
+ /* Set OSC as active before notifying the observer, so the
+ * observer can use the OSC normally.
+ */
+ rc = lov_set_osc_active(obd, uuid, ev == OBD_NOTIFY_ACTIVE);
+ if (rc) {
+ CERROR("%sactivation of %s failed: %d\n",
+ (ev == OBD_NOTIFY_ACTIVE) ? "" : "de",
+ obd_uuid2str(uuid), rc);
+ RETURN(rc);
+ }
+ }
- entry = create_proc_entry("target_obd_status", 0444,
- dev->obd_proc_entry);
- if (entry == NULL) {
- rc = -ENOMEM;
- } else {
- entry->proc_fops = &lov_proc_target_fops;
- entry->data = dev;
+ /* Pass the notification up the chain. */
+ if (watched) {
+ rc = obd_notify_observer(obd, watched, ev, data);
+ } else {
+ /* NULL watched means all osc's in the lov (only for syncs) */
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_device *tgt_obd;
+ int i;
+ lov_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i])
+ continue;
+ tgt_obd = class_exp2obd(lov->lov_tgts[i]->ltd_exp);
+ rc = obd_notify_observer(obd, tgt_obd, ev, data);
+ if (rc) {
+ CERROR("%s: notify %s of %s failed %d\n",
+ obd->obd_name,
+ obd->obd_observer->obd_name,
+ tgt_obd->obd_name, rc);
+ break;
+ }
}
-#endif
+ lov_putref(obd);
}
- return rc;
-}
-int lov_detach(struct obd_device *dev)
-{
- return lprocfs_obd_detach(dev);
+ RETURN(rc);
}
-static int lov_setup(struct obd_device *obd, obd_count len, void *buf)
+static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
+ __u32 index, int gen, int active)
{
struct lov_obd *lov = &obd->u.lov;
- struct lustre_cfg *lcfg = buf;
- struct lov_desc *desc;
- int count;
+ struct lov_tgt_desc *tgt;
+ int rc;
ENTRY;
- if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
- CERROR("LOV setup requires a descriptor\n");
- RETURN(-EINVAL);
- }
+ CDEBUG(D_CONFIG, "uuid:%s idx:%d gen:%d active:%d\n",
+ uuidp->uuid, index, gen, active);
- desc = (struct lov_desc *)lustre_cfg_string(lcfg, 1);
- if (sizeof(*desc) > LUSTRE_CFG_BUFLEN(lcfg, 1)) {
- CERROR("descriptor size wrong: %d > %d\n",
- (int)sizeof(*desc), LUSTRE_CFG_BUFLEN(lcfg, 1));
- RETURN(-EINVAL);
- }
-
- /* Because of 64-bit divide/mod operations only work with a 32-bit
- * divisor in a 32-bit kernel, we cannot support a stripe width
- * of 4GB or larger on 32-bit CPUs.
- */
-
- count = desc->ld_default_stripe_count;
- if (count && (count * desc->ld_default_stripe_size) > ~0UL) {
- CERROR("LOV: stripe width "LPU64"x%u > %lu on 32-bit system\n",
- desc->ld_default_stripe_size, count, ~0UL);
- RETURN(-EINVAL);
- }
-
- lov->bufsize = sizeof(struct lov_tgt_desc) * LOV_MAX_TGT_COUNT;
- OBD_ALLOC(lov->tgts, lov->bufsize);
- if (lov->tgts == NULL) {
- lov->bufsize = 0;
- CERROR("couldn't allocate %d bytes for target table.\n",
- lov->bufsize);
+ if (gen <= 0) {
+ CERROR("request to add OBD %s with invalid generation: %d\n",
+ uuidp->uuid, gen);
RETURN(-EINVAL);
}
- desc->ld_tgt_count = 0;
- desc->ld_active_tgt_count = 0;
- lov->desc = *desc;
- spin_lock_init(&lov->lov_lock);
- sema_init(&lov->lov_llog_sem, 1);
- init_waitqueue_head(&lov->lov_tgt_waitq);
-
- RETURN(0);
-}
+ mutex_down(&lov->lov_lock);
-static int lov_cleanup(struct obd_device *obd, int flags)
-{
- struct lov_obd *lov = &obd->u.lov;
+ if ((index < lov->lov_tgt_size) && (lov->lov_tgts[index] != NULL)) {
+ tgt = lov->lov_tgts[index];
+ CERROR("UUID %s already assigned at LOV target index %d\n",
+ obd_uuid2str(&tgt->ltd_uuid), index);
+ mutex_up(&lov->lov_lock);
+ RETURN(-EEXIST);
+ }
- OBD_FREE(lov->tgts, lov->bufsize);
- RETURN(0);
-}
+ if (index >= lov->lov_tgt_size) {
+ /* We need to reallocate the lov target array. */
+ struct lov_tgt_desc **newtgts, **old = NULL;
+ __u32 newsize, oldsize = 0;
-static int
-lov_add_obd(struct obd_device *obd, struct obd_uuid *uuidp, int index, int gen)
-{
- struct lov_obd *lov = &obd->u.lov;
- struct lov_tgt_desc *tgt;
- int rc;
- ENTRY;
+ newsize = max(lov->lov_tgt_size, (__u32)2);
+ while (newsize < index + 1)
+ newsize = newsize << 1;
+ OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
+ if (newtgts == NULL) {
+ mutex_up(&lov->lov_lock);
+ RETURN(-ENOMEM);
+ }
- CDEBUG(D_CONFIG, "uuid: %s idx: %d gen: %d\n",
- uuidp->uuid, index, gen);
+ if (lov->lov_tgt_size) {
+ memcpy(newtgts, lov->lov_tgts, sizeof(*newtgts) *
+ lov->lov_tgt_size);
+ old = lov->lov_tgts;
+ oldsize = lov->lov_tgt_size;
+ }
- if ((index < 0) || (index >= LOV_MAX_TGT_COUNT)) {
- CERROR("request to add OBD %s at invalid index: %d\n",
- uuidp->uuid, index);
- RETURN(-EINVAL);
- }
+ lov->lov_tgts = newtgts;
+ lov->lov_tgt_size = newsize;
+#ifdef __KERNEL__
+ smp_rmb();
+#endif
+ if (old)
+ OBD_FREE(old, sizeof(*old) * oldsize);
- if (gen <= 0) {
- CERROR("request to add OBD %s with invalid generation: %d\n",
- uuidp->uuid, gen);
- RETURN(-EINVAL);
+ CDEBUG(D_CONFIG, "tgts: %p size: %d\n",
+ lov->lov_tgts, lov->lov_tgt_size);
}
- tgt = lov->tgts + index;
-
- lov_tgts_lock(lov);
- if (!obd_uuid_empty(&tgt->uuid)) {
- lov_tgts_unlock(lov);
- CERROR("OBD already assigned at LOV target index %d\n",
- index);
- RETURN(-EEXIST);
+ OBD_ALLOC_PTR(tgt);
+ if (!tgt) {
+ mutex_up(&lov->lov_lock);
+ RETURN(-ENOMEM);
}
- tgt->uuid = *uuidp;
+ memset(tgt, 0, sizeof(*tgt));
+ tgt->ltd_uuid = *uuidp;
/* XXX - add a sanity check on the generation number. */
tgt->ltd_gen = gen;
- tgt->ltd_flags = 0;
-
+ tgt->ltd_index = index;
+ tgt->ltd_activate = active;
+ lov->lov_tgts[index] = tgt;
if (index >= lov->desc.ld_tgt_count)
lov->desc.ld_tgt_count = index + 1;
+ mutex_up(&lov->lov_lock);
- lov_tgts_unlock(lov);
-
- CDEBUG(D_CONFIG, "idx: %d ltd_gen: %d ld_tgt_count: %d\n",
+ CDEBUG(D_CONFIG, "idx=%d ltd_gen=%d ld_tgt_count=%d\n",
index, tgt->ltd_gen, lov->desc.ld_tgt_count);
- if (lov->refcount == 0)
+ if (lov->lov_connects == 0) {
+ /* lov_connect hasn't been called yet. We'll do the
+ lov_connect_obd on this target when that fn first runs,
+ because we don't know the connect flags yet. */
RETURN(0);
-
- /* We don't need to lock the tgt entry here because the
- * config events are single threaded. Therefore only the
- * current thread can be changing the tgts tbl. */
- if (tgt->ltd_exp) {
- struct obd_device *osc_obd;
-
- osc_obd = class_exp2obd(tgt->ltd_exp);
- if (osc_obd)
- osc_obd->obd_no_recov = 0;
}
- rc = lov_connect_obd(obd, tgt, 0, NULL, lov->lov_connect_flags);
+ lov_getref(obd);
+
+ rc = lov_connect_obd(obd, index, active, &lov->lov_ocd);
if (rc)
GOTO(out, rc);
- if (obd->obd_observer) {
- /* tell the mds_lov about the new target */
- rc = obd_notify(obd->obd_observer, tgt->ltd_exp->exp_obd, 1,
- (void *)index);
- }
+ rc = lov_notify(obd, tgt->ltd_exp->exp_obd,
+ active ? OBD_NOTIFY_ACTIVE : OBD_NOTIFY_INACTIVE,
+ (void *)&index);
- GOTO(out, rc);
- out:
- if (rc && tgt->ltd_exp != NULL)
- lov_disconnect_obd(obd, tgt, 0);
- return rc;
+out:
+ if (rc) {
+ CERROR("add failed (%d), deleting %s\n", rc,
+ obd_uuid2str(&tgt->ltd_uuid));
+ lov_del_target(obd, index, 0, 0);
+ }
+ lov_putref(obd);
+ RETURN(rc);
}
-static int
-lov_del_obd(struct obd_device *obd, struct obd_uuid *uuidp, int index, int gen)
+/* Schedule a target for deletion */
+static int lov_del_target(struct obd_device *obd, __u32 index,
+ struct obd_uuid *uuidp, int gen)
{
struct lov_obd *lov = &obd->u.lov;
- struct lov_tgt_desc *tgt;
- struct l_wait_info lwi = { 0 };
int count = lov->desc.ld_tgt_count;
int rc = 0;
ENTRY;
- CDEBUG(D_CONFIG, "uuid: %s idx: %d gen: %d\n",
- uuidp->uuid, index, gen);
-
if (index >= count) {
CERROR("LOV target index %d >= number of LOV OBDs %d.\n",
index, count);
RETURN(-EINVAL);
}
- tgt = lov->tgts + index;
+ lov_getref(obd);
- if (obd_uuid_empty(&tgt->uuid)) {
+ if (!lov->lov_tgts[index]) {
CERROR("LOV target at index %d is not setup.\n", index);
- RETURN(-EINVAL);
+ GOTO(out, rc = -EINVAL);
}
- if (!obd_uuid_equals(uuidp, &tgt->uuid)) {
+ if (uuidp && !obd_uuid_equals(uuidp, &lov->lov_tgts[index]->ltd_uuid)) {
CERROR("LOV target UUID %s at index %d doesn't match %s.\n",
- tgt->uuid.uuid, index, uuidp->uuid);
+ lov_uuid2str(lov, index), index,
+ obd_uuid2str(uuidp));
+ GOTO(out, rc = -EINVAL);
+ }
+
+ CDEBUG(D_CONFIG, "uuid: %s idx: %d gen: %d exp: %p active: %d\n",
+ lov_uuid2str(lov, index), index,
+ lov->lov_tgts[index]->ltd_gen, lov->lov_tgts[index]->ltd_exp,
+ lov->lov_tgts[index]->ltd_active);
+
+ lov->lov_tgts[index]->ltd_reap = 1;
+ lov->lov_death_row++;
+ /* we really delete it from lov_putref */
+out:
+ lov_putref(obd);
+
+ RETURN(rc);
+}
+
+/* We are holding lov_lock */
+static void __lov_del_obd(struct obd_device *obd, __u32 index)
+{
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_device *osc_obd;
+ struct lov_tgt_desc *tgt = lov->lov_tgts[index];
+
+ LASSERT(tgt);
+ LASSERT(tgt->ltd_reap);
+
+ osc_obd = class_exp2obd(tgt->ltd_exp);
+
+ CDEBUG(D_CONFIG, "Removing tgt %s : %s\n",
+ lov_uuid2str(lov, index),
+ osc_obd ? osc_obd->obd_name : "<no obd>");
+
+ if (tgt->ltd_exp)
+ lov_disconnect_obd(obd, index);
+
+ /* XXX - right now there is a dependency on ld_tgt_count being the
+ * maximum tgt index for computing the mds_max_easize. So we can't
+ * shrink it. */
+
+ lov->lov_tgts[index] = NULL;
+ OBD_FREE_PTR(tgt);
+
+ /* Manual cleanup - no cleanup logs to clean up the osc's. We must
+ do it ourselves. And we can't do it from lov_cleanup,
+ because we just lost our only reference to it. */
+ if (osc_obd)
+ class_manual_cleanup(osc_obd);
+}
+
+void lov_fix_desc(struct lov_desc *desc)
+{
+ if (desc->ld_default_stripe_size < PTLRPC_MAX_BRW_SIZE) {
+ LCONSOLE_WARN("Increasing default stripe size to min %u\n",
+ PTLRPC_MAX_BRW_SIZE);
+ desc->ld_default_stripe_size = PTLRPC_MAX_BRW_SIZE;
+ } else if (desc->ld_default_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
+ desc->ld_default_stripe_size &= ~(LOV_MIN_STRIPE_SIZE - 1);
+ LCONSOLE_WARN("Changing default stripe size to "LPU64" (a "
+ "multiple of %u)\n",
+ desc->ld_default_stripe_size,LOV_MIN_STRIPE_SIZE);
+ }
+
+ if (desc->ld_default_stripe_count == 0)
+ desc->ld_default_stripe_count = 1;
+
+ /* from lov_setstripe */
+ if ((desc->ld_pattern != 0) &&
+ (desc->ld_pattern != LOV_PATTERN_RAID0)) {
+ LCONSOLE_WARN("Unknown stripe pattern: %#x\n",desc->ld_pattern);
+ desc->ld_pattern = 0;
+ }
+
+ if (desc->ld_qos_maxage == 0)
+ desc->ld_qos_maxage = QOS_DEFAULT_MAXAGE;
+}
+
+static int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
+{
+ struct lprocfs_static_vars lvars;
+ struct lov_desc *desc;
+ struct lov_obd *lov = &obd->u.lov;
+ int count;
+ ENTRY;
+
+ if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
+ CERROR("LOV setup requires a descriptor\n");
RETURN(-EINVAL);
}
- lov_tgt_set_flags(lov, tgt, LTD_DEL_PENDING);
+ desc = (struct lov_desc *)lustre_cfg_buf(lcfg, 1);
- if (tgt->ltd_exp) {
- struct obd_device *osc_obd;
+ if (sizeof(*desc) > LUSTRE_CFG_BUFLEN(lcfg, 1)) {
+ CERROR("descriptor size wrong: %d > %d\n",
+ (int)sizeof(*desc), LUSTRE_CFG_BUFLEN(lcfg, 1));
+ RETURN(-EINVAL);
+ }
- rc = obd_cancel_unused(tgt->ltd_exp, NULL,
- LDLM_FL_CONFIG_CHANGE, NULL);
- if (rc != 0)
- CWARN("obd_cancel_unused(osc): %d\n", rc);
-
- osc_obd = class_exp2obd(tgt->ltd_exp);
- if (osc_obd) {
- osc_obd->obd_no_recov = 1;
- rc = obd_llog_finish(osc_obd, &osc_obd->obd_llogs, 1);
- if (rc)
- CERROR("osc_llog_finish error: %d\n", rc);
+ if (desc->ld_magic != LOV_DESC_MAGIC) {
+ if (desc->ld_magic == __swab32(LOV_DESC_MAGIC)) {
+ CDEBUG(D_OTHER, "%s: Swabbing lov desc %p\n",
+ obd->obd_name, desc);
+ lustre_swab_lov_desc(desc);
+ } else {
+ CERROR("%s: Bad lov desc magic: %#x\n",
+ obd->obd_name, desc->ld_magic);
+ RETURN(-EINVAL);
}
+ }
+
+ lov_fix_desc(desc);
- lov_disconnect_obd(obd, tgt, 0);
+ /* Because of 64-bit divide/mod operations only work with a 32-bit
+ * divisor in a 32-bit kernel, we cannot support a stripe width
+ * of 4GB or larger on 32-bit CPUs. */
+ count = desc->ld_default_stripe_count;
+ if ((count > 0 ? count : desc->ld_tgt_count) *
+ desc->ld_default_stripe_size > 0xffffffff) {
+ CERROR("LOV: stripe width "LPU64"x%u > 4294967295 bytes\n",
+ desc->ld_default_stripe_size, count);
+ RETURN(-EINVAL);
}
- CDEBUG(D_CONFIG, "Sleeping until LOV target index %d UUID %s "
- "is quiesced; ltd_refcount: %d ld_active_tgt_count: %d.\n",
- index, uuidp->uuid, tgt->ltd_refcount,
- lov->desc.ld_active_tgt_count);
+ desc->ld_active_tgt_count = 0;
+ lov->desc = *desc;
+ lov->lov_tgt_size = 0;
+ sema_init(&lov->lov_lock, 1);
+ atomic_set(&lov->lov_refcount, 0);
+ INIT_LIST_HEAD(&lov->lov_qos.lq_oss_list);
+ init_rwsem(&lov->lov_qos.lq_rw_sem);
+ lov->lov_qos.lq_dirty = 1;
+ lov->lov_qos.lq_dirty_rr = 1;
+ lov->lov_qos.lq_reset = 1;
+ /* Default priority is toward free space balance */
+ lov->lov_qos.lq_prio_free = 232;
- /* XXX - should we set a timeout ? */
- lwi = LWI_TIMEOUT_INTR(0, NULL, NULL, NULL);
- rc = l_wait_event(lov->lov_tgt_waitq, (tgt->ltd_refcount == 0), &lwi);
- if (rc) {
- lov_tgt_clear_flags(lov, tgt, LTD_DEL_PENDING);
- CERROR("LOV target delete UUID %s index %d aborted: %d.\n",
- uuidp->uuid, index, rc);
- RETURN(rc);
+ lprocfs_init_vars(lov, &lvars);
+ lprocfs_obd_setup(obd, lvars.obd_vars);
+#ifdef LPROCFS
+ {
+ cfs_proc_dir_entry_t *entry;
+
+ entry = create_proc_entry("target_obd", 0444,
+ obd->obd_proc_entry);
+ if (entry != NULL) {
+ entry->proc_fops = &lov_proc_target_fops;
+ entry->data = obd;
+ }
}
+#endif
- CDEBUG(D_CONFIG, "LOV target index %d UUID %s is quiesced; "
- "ltd_refcount: %d ld_active_tgt_count: %d.\n",
- index, uuidp->uuid, tgt->ltd_refcount,
- lov->desc.ld_active_tgt_count);
+ RETURN(0);
+}
- /* XXX - right now there is a dependency on ld_tgt_count being the
- * maximum tgt index for computing the mds_max_easize. So we can't
- * shrink it. */
+static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
+{
+ int rc = 0;
+ ENTRY;
- /* lt_gen = 0 will mean it will not match the gen of any valid loi */
- memset(tgt, 0, sizeof(*tgt));
+ switch (stage) {
+ case OBD_CLEANUP_EARLY: {
+ struct lov_obd *lov = &obd->u.lov;
+ int i;
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
+ continue;
+ obd_precleanup(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
+ OBD_CLEANUP_EARLY);
+ }
+ break;
+ }
+ case OBD_CLEANUP_EXPORTS:
+ break;
+ case OBD_CLEANUP_SELF_EXP:
+ rc = obd_llog_finish(obd, 0);
+ if (rc != 0)
+ CERROR("failed to cleanup llogging subsystems\n");
+ break;
+ case OBD_CLEANUP_OBD:
+ break;
+ }
RETURN(rc);
}
+static int lov_cleanup(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+
+ lprocfs_obd_cleanup(obd);
+ if (lov->lov_tgts) {
+ int i;
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (lov->lov_tgts[i]) {
+ /* Inactive targets may never have connected */
+ if (lov->lov_tgts[i]->ltd_active ||
+ atomic_read(&lov->lov_refcount))
+ /* We should never get here - these
+ should have been removed in the
+ disconnect. */
+ CERROR("lov tgt %d not cleaned!"
+ " deathrow=%d, lovrc=%d\n",
+ i, lov->lov_death_row,
+ atomic_read(&lov->lov_refcount));
+ lov_del_target(obd, i, 0, 0);
+ }
+ }
+ OBD_FREE(lov->lov_tgts, sizeof(*lov->lov_tgts) *
+ lov->lov_tgt_size);
+ lov->lov_tgt_size = 0;
+ }
+
+ if (lov->lov_qos.lq_rr_size)
+ OBD_FREE(lov->lov_qos.lq_rr_array, lov->lov_qos.lq_rr_size);
+
+ RETURN(0);
+}
+
static int lov_process_config(struct obd_device *obd, obd_count len, void *buf)
{
struct lustre_cfg *lcfg = buf;
struct obd_uuid obd_uuid;
int cmd;
- int index;
- int gen;
int rc = 0;
ENTRY;
switch(cmd = lcfg->lcfg_command) {
case LCFG_LOV_ADD_OBD:
+ case LCFG_LOV_ADD_INA:
case LCFG_LOV_DEL_OBD: {
+ __u32 index;
+ int gen;
+ /* lov_modify_tgts add 0:lov_mdsA 1:ost1_UUID 2:0 3:1 */
if (LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(obd_uuid.uuid))
GOTO(out, rc = -EINVAL);
- obd_str2uuid(&obd_uuid, lustre_cfg_string(lcfg, 1));
+ obd_str2uuid(&obd_uuid, lustre_cfg_buf(lcfg, 1));
if (sscanf(lustre_cfg_buf(lcfg, 2), "%d", &index) != 1)
GOTO(out, rc = -EINVAL);
if (sscanf(lustre_cfg_buf(lcfg, 3), "%d", &gen) != 1)
GOTO(out, rc = -EINVAL);
if (cmd == LCFG_LOV_ADD_OBD)
- rc = lov_add_obd(obd, &obd_uuid, index, gen);
+ rc = lov_add_target(obd, &obd_uuid, index, gen, 1);
+ else if (cmd == LCFG_LOV_ADD_INA)
+ rc = lov_add_target(obd, &obd_uuid, index, gen, 0);
else
- rc = lov_del_obd(obd, &obd_uuid, index, gen);
+ rc = lov_del_target(obd, index, &obd_uuid, gen);
+ GOTO(out, rc);
+ }
+ case LCFG_PARAM: {
+ struct lprocfs_static_vars lvars;
+ struct lov_desc *desc = &(obd->u.lov.desc);
+
+ if (!desc)
+ GOTO(out, rc = -EINVAL);
+
+ lprocfs_init_vars(lov, &lvars);
+
+ rc = class_process_proc_param(PARAM_LOV, lvars.obd_vars,
+ lcfg, obd);
GOTO(out, rc);
}
default: {
#define log2(n) ffz(~(n))
#endif
-static int lov_clear_orphans(struct obd_export *export,
- struct obdo *src_oa,
+static int lov_clear_orphans(struct obd_export *export, struct obdo *src_oa,
struct lov_stripe_md **ea,
struct obd_trans_info *oti)
{
struct lov_obd *lov;
struct obdo *tmp_oa;
struct obd_uuid *ost_uuid = NULL;
- struct lov_tgt_desc *tgt;
int rc = 0, i;
ENTRY;
lov = &export->exp_obd->u.lov;
- tmp_oa = obdo_alloc();
+ OBDO_ALLOC(tmp_oa);
if (tmp_oa == NULL)
RETURN(-ENOMEM);
ost_uuid->uuid);
}
- for (i = 0, tgt = lov->tgts; i < lov->desc.ld_tgt_count; i++, tgt++) {
+ lov_getref(export->exp_obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
struct lov_stripe_md obj_md;
struct lov_stripe_md *obj_mdp = &obj_md;
- int active = 0;
+ struct lov_tgt_desc *tgt;
int err;
+ tgt = lov->lov_tgts[i];
+ if (!tgt)
+ continue;
+
/* if called for a specific target, we don't
care if it is not active. */
- if (lov_tgt_active(lov, tgt, 0)) {
- active = 1;
- } else if (ost_uuid == NULL) {
+ if (!lov->lov_tgts[i]->ltd_active == 0 && ost_uuid == NULL) {
CDEBUG(D_HA, "lov idx %d inactive\n", i);
continue;
}
- if (ost_uuid && !obd_uuid_equals(ost_uuid, &tgt->uuid)) {
- if (active)
- lov_tgt_decref(lov, tgt);
+ if (ost_uuid && !obd_uuid_equals(ost_uuid, &tgt->ltd_uuid))
continue;
- }
- /*
- * setting up objid OSS objects should be destroyed starting
- * from it.
- */
+ CDEBUG(D_CONFIG,"Clear orphans for %d:%s\n", i,
+ obd_uuid2str(ost_uuid));
+
memcpy(tmp_oa, src_oa, sizeof(*tmp_oa));
- tmp_oa->o_valid |= OBD_MD_FLID;
- tmp_oa->o_id = oti->oti_objid[i];
+ LASSERT(lov->lov_tgts[i]->ltd_exp);
/* XXX: LOV STACKING: use real "obj_mdp" sub-data */
- err = obd_create(tgt->ltd_exp, tmp_oa, NULL, 0, &obj_mdp, oti);
+ err = obd_create(lov->lov_tgts[i]->ltd_exp,
+ tmp_oa, &obj_mdp, oti);
if (err)
/* This export will be disabled until it is recovered,
and then orphan recovery will be completed. */
CERROR("error in orphan recovery on OST idx %d/%d: "
"rc = %d\n", i, lov->desc.ld_tgt_count, err);
- if (active)
- lov_tgt_decref(lov, tgt);
-
if (ost_uuid)
break;
}
+ lov_putref(export->exp_obd);
+
+ OBDO_FREE(tmp_oa);
+ RETURN(rc);
+}
+
+static int lov_recreate(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md **ea, struct obd_trans_info *oti)
+{
+ struct lov_stripe_md *obj_mdp, *lsm;
+ struct lov_obd *lov = &exp->exp_obd->u.lov;
+ unsigned ost_idx;
+ int rc, i;
+ ENTRY;
+
+ LASSERT(src_oa->o_valid & OBD_MD_FLFLAGS &&
+ src_oa->o_flags & OBD_FL_RECREATE_OBJS);
+
+ OBD_ALLOC(obj_mdp, sizeof(*obj_mdp));
+ if (obj_mdp == NULL)
+ RETURN(-ENOMEM);
+
+ ost_idx = src_oa->o_nlink;
+ lsm = *ea;
+ if (lsm == NULL)
+ GOTO(out, rc = -EINVAL);
+ if (ost_idx >= lov->desc.ld_tgt_count ||
+ !lov->lov_tgts[ost_idx])
+ GOTO(out, rc = -EINVAL);
+
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ if (lsm->lsm_oinfo[i]->loi_ost_idx == ost_idx) {
+ if (lsm->lsm_oinfo[i]->loi_id != src_oa->o_id)
+ GOTO(out, rc = -EINVAL);
+ break;
+ }
+ }
+ if (i == lsm->lsm_stripe_count)
+ GOTO(out, rc = -EINVAL);
- obdo_free(tmp_oa);
+ rc = obd_create(lov->lov_tgts[ost_idx]->ltd_exp, src_oa, &obj_mdp, oti);
+out:
+ OBD_FREE(obj_mdp, sizeof(*obj_mdp));
RETURN(rc);
}
/* the LOV expects oa->o_id to be set to the LOV object id */
-static int
-lov_create(struct obd_export *exp, struct obdo *src_oa,
- void *acl, int acl_size, struct lov_stripe_md **ea,
- struct obd_trans_info *oti)
+static int lov_create(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md **ea, struct obd_trans_info *oti)
{
- struct lov_request_set *set = NULL;
- struct list_head *pos;
struct lov_obd *lov;
+ struct obd_info oinfo;
+ struct lov_request_set *set = NULL;
+ struct lov_request *req;
+ struct obd_statfs osfs;
+ __u64 maxage;
int rc = 0;
ENTRY;
RETURN(rc);
}
- LASSERT(oti->oti_flags & OBD_MODE_CROW);
-
- /* main creation loop */
- rc = lov_prep_create_set(exp, ea, src_oa, oti, &set);
- if (rc)
- RETURN(rc);
-
lov = &exp->exp_obd->u.lov;
+ if (!lov->desc.ld_active_tgt_count)
+ RETURN(-EIO);
- list_for_each (pos, &set->set_list) {
- struct lov_request *req =
- list_entry(pos, struct lov_request, rq_link);
+ /* Recreate a specific object id at the given OST index */
+ if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
+ (src_oa->o_flags & OBD_FL_RECREATE_OBJS)) {
+ rc = lov_recreate(exp, src_oa, ea, oti);
+ RETURN(rc);
+ }
+ maxage = cfs_time_shift_64(-lov->desc.ld_qos_maxage);
+ obd_statfs_rqset(exp->exp_obd, &osfs, maxage);
+
+ rc = lov_prep_create_set(exp, &oinfo, ea, src_oa, oti, &set);
+ if (rc)
+ RETURN(rc);
+
+ list_for_each_entry(req, &set->set_list, rq_link) {
/* XXX: LOV STACKING: use real "obj_mdp" sub-data */
- rc = obd_create(lov->tgts[req->rq_idx].ltd_exp,
- req->rq_oa, NULL, 0, &req->rq_md, oti);
+ rc = obd_create(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ req->rq_oi.oi_oa, &req->rq_oi.oi_md, oti);
lov_update_create_set(set, req, rc);
}
rc = lov_fini_create_set(set, ea);
RETURN(rc);
}
-#define lsm_bad_magic(LSMP) \
-({ \
- struct lov_stripe_md *_lsm__ = (LSMP); \
- int _ret__ = 0; \
- if (!_lsm__) { \
- CERROR("LOV requires striping ea\n"); \
- _ret__ = 1; \
- } else if (_lsm__->lsm_magic != LOV_MAGIC) { \
- CERROR("LOV striping magic bad %#x != %#x\n", \
- _lsm__->lsm_magic, LOV_MAGIC); \
- _ret__ = 1; \
- } \
- _ret__; \
-})
+#define ASSERT_LSM_MAGIC(lsmp) \
+do { \
+ LASSERT((lsmp) != NULL); \
+ LASSERTF(((lsmp)->lsm_magic == LOV_MAGIC || \
+ (lsmp)->lsm_magic == LOV_MAGIC_JOIN), "%p->lsm_magic=%x\n", \
+ (lsmp), (lsmp)->lsm_magic); \
+} while (0)
static int lov_destroy(struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md *lsm, struct obd_trans_info *oti)
+ struct lov_stripe_md *lsm, struct obd_trans_info *oti,
+ struct obd_export *md_exp)
{
struct lov_request_set *set;
+ struct obd_info oinfo;
struct lov_request *req;
struct list_head *pos;
struct lov_obd *lov;
- int rc = 0;
+ int rc = 0, err;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
+ if (oa->o_valid & OBD_MD_FLCOOKIE) {
+ LASSERT(oti);
+ LASSERT(oti->oti_logcookies);
+ }
+
lov = &exp->exp_obd->u.lov;
- rc = lov_prep_destroy_set(exp, oa, lsm, oti, &set);
+ rc = lov_prep_destroy_set(exp, &oinfo, oa, lsm, oti, &set);
if (rc)
RETURN(rc);
int err;
req = list_entry(pos, struct lov_request, rq_link);
- /* XXX update the cookie position */
- oti->oti_logcookies = set->set_cookies + req->rq_stripe;
- rc = obd_destroy(lov->tgts[req->rq_idx].ltd_exp, req->rq_oa,
- NULL, oti);
- err = lov_update_common_set(set, req, rc);
- if (rc) {
+ if (oa->o_valid & OBD_MD_FLCOOKIE)
+ oti->oti_logcookies = set->set_cookies + req->rq_stripe;
+
+ err = obd_destroy(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ req->rq_oi.oi_oa, NULL, oti, NULL);
+ err = lov_update_common_set(set, req, err);
+ if (err) {
CERROR("error: destroying objid "LPX64" subobj "
- LPX64" on OST idx %d: rc = %d\n",
- set->set_oa->o_id, req->rq_oa->o_id,
- req->rq_idx, rc);
+ LPX64" on OST idx %d: rc = %d\n",
+ oa->o_id, req->rq_oi.oi_oa->o_id,
+ req->rq_idx, err);
if (!rc)
rc = err;
}
}
- lov_fini_destroy_set(set);
- RETURN(rc);
+
+ if (rc == 0) {
+ LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
+ rc = lsm_op_find(lsm->lsm_magic)->lsm_destroy(lsm, oa, md_exp);
+ }
+ err = lov_fini_destroy_set(set);
+ RETURN(rc ? rc : err);
}
-static int lov_getattr(struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md *lsm)
+static int lov_getattr(struct obd_export *exp, struct obd_info *oinfo)
{
struct lov_request_set *set;
struct lov_request *req;
int err = 0, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
lov = &exp->exp_obd->u.lov;
-
- rc = lov_prep_getattr_set(exp, oa, lsm, &set);
+
+ rc = lov_prep_getattr_set(exp, oinfo, &set);
if (rc)
RETURN(rc);
list_for_each (pos, &set->set_list) {
req = list_entry(pos, struct lov_request, rq_link);
-
+
CDEBUG(D_INFO, "objid "LPX64"[%d] has subobj "LPX64" at idx "
- "%u\n", oa->o_id, req->rq_stripe, req->rq_oa->o_id,
- req->rq_idx);
+ "%u\n", oinfo->oi_oa->o_id, req->rq_stripe,
+ req->rq_oi.oi_oa->o_id, req->rq_idx);
- rc = obd_getattr(lov->tgts[req->rq_idx].ltd_exp,
- req->rq_oa, NULL);
+ rc = obd_getattr(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi);
err = lov_update_common_set(set, req, rc);
if (err) {
CERROR("error: getattr objid "LPX64" subobj "
LPX64" on OST idx %d: rc = %d\n",
- set->set_oa->o_id, req->rq_oa->o_id,
+ oinfo->oi_oa->o_id, req->rq_oi.oi_oa->o_id,
req->rq_idx, err);
break;
}
}
-
+
rc = lov_fini_getattr_set(set);
if (err)
rc = err;
RETURN(rc);
}
-static int lov_getattr_interpret(struct ptlrpc_request_set *rqset, void *data,
- int rc)
+static int lov_getattr_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
{
struct lov_request_set *lovset = (struct lov_request_set *)data;
+ int err;
ENTRY;
/* don't do attribute merge if this aysnc op failed */
- if (rc) {
+ if (rc)
lovset->set_completes = 0;
- lov_fini_getattr_set(lovset);
- } else {
- rc = lov_fini_getattr_set(lovset);
- }
- RETURN (rc);
+ err = lov_fini_getattr_set(lovset);
+ RETURN(rc ? rc : err);
}
-static int lov_getattr_async(struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md *lsm,
+static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
struct ptlrpc_request_set *rqset)
{
struct lov_request_set *lovset;
struct lov_obd *lov;
struct list_head *pos;
struct lov_request *req;
- int rc = 0;
+ int rc = 0, err;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
lov = &exp->exp_obd->u.lov;
- rc = lov_prep_getattr_set(exp, oa, lsm, &lovset);
+ rc = lov_prep_getattr_set(exp, oinfo, &lovset);
if (rc)
RETURN(rc);
CDEBUG(D_INFO, "objid "LPX64": %ux%u byte stripes\n",
- lsm->lsm_object_id, lsm->lsm_stripe_count, lsm->lsm_stripe_size);
+ oinfo->oi_md->lsm_object_id, oinfo->oi_md->lsm_stripe_count,
+ oinfo->oi_md->lsm_stripe_size);
list_for_each (pos, &lovset->set_list) {
req = list_entry(pos, struct lov_request, rq_link);
-
+
CDEBUG(D_INFO, "objid "LPX64"[%d] has subobj "LPX64" at idx "
- "%u\n", oa->o_id, req->rq_stripe, req->rq_oa->o_id,
- req->rq_idx);
- rc = obd_getattr_async(lov->tgts[req->rq_idx].ltd_exp,
- req->rq_oa, NULL, rqset);
+ "%u\n", oinfo->oi_oa->o_id, req->rq_stripe,
+ req->rq_oi.oi_oa->o_id, req->rq_idx);
+ rc = obd_getattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi, rqset);
if (rc) {
CERROR("error: getattr objid "LPX64" subobj "
LPX64" on OST idx %d: rc = %d\n",
- lovset->set_oa->o_id, req->rq_oa->o_id,
+ oinfo->oi_oa->o_id, req->rq_oi.oi_oa->o_id,
req->rq_idx, rc);
GOTO(out, rc);
}
- lov_update_common_set(lovset, req, rc);
}
-
- LASSERT(rc == 0);
- LASSERT (rqset->set_interpret == NULL);
- rqset->set_interpret = lov_getattr_interpret;
- rqset->set_arg = (void *)lovset;
- RETURN(rc);
+
+ if (!list_empty(&rqset->set_requests)) {
+ LASSERT(rc == 0);
+ LASSERT (rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_getattr_interpret;
+ rqset->set_arg = (void *)lovset;
+ RETURN(rc);
+ }
out:
- LASSERT(rc);
- lov_fini_getattr_set(lovset);
- RETURN(rc);
+ if (rc)
+ lovset->set_completes = 0;
+ err = lov_fini_getattr_set(lovset);
+ RETURN(rc ? rc : err);
}
-static int lov_setattr(struct obd_export *exp, struct obdo *src_oa,
- struct lov_stripe_md *lsm, struct obd_trans_info *oti,
- struct lustre_capa *capa)
+static int lov_setattr(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_trans_info *oti)
{
struct lov_request_set *set;
struct lov_obd *lov;
int err = 0, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
- LASSERT(!(src_oa->o_valid & ~(OBD_MD_FLID|OBD_MD_FLTYPE | OBD_MD_FLMODE|
- OBD_MD_FLATIME | OBD_MD_FLMTIME |
- OBD_MD_FLCTIME | OBD_MD_FLFLAGS |
- OBD_MD_FLSIZE | OBD_MD_FLGROUP |
- OBD_MD_FLUID | OBD_MD_FLGID |
- OBD_MD_FLINLINE | OBD_MD_FLIFID)));
-
- LASSERT(!(src_oa->o_valid & OBD_MD_FLGROUP) || src_oa->o_gr > 0);
-
+ /* for now, we only expect the following updates here */
+ LASSERT(!(oinfo->oi_oa->o_valid & ~(OBD_MD_FLID | OBD_MD_FLTYPE |
+ OBD_MD_FLMODE | OBD_MD_FLATIME |
+ OBD_MD_FLMTIME | OBD_MD_FLCTIME |
+ OBD_MD_FLFLAGS | OBD_MD_FLSIZE |
+ OBD_MD_FLGROUP | OBD_MD_FLUID |
+ OBD_MD_FLGID | OBD_MD_FLINLINE |
+ OBD_MD_FLFID | OBD_MD_FLGENER)));
lov = &exp->exp_obd->u.lov;
- rc = lov_prep_setattr_set(exp, src_oa, lsm, NULL, &set);
+ rc = lov_prep_setattr_set(exp, oinfo, oti, &set);
if (rc)
RETURN(rc);
list_for_each (pos, &set->set_list) {
req = list_entry(pos, struct lov_request, rq_link);
-
- rc = obd_setattr(lov->tgts[req->rq_idx].ltd_exp, req->rq_oa,
- NULL, NULL, NULL);
- err = lov_update_common_set(set, req, rc);
+
+ rc = obd_setattr(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi, NULL);
+ err = lov_update_setattr_set(set, req, rc);
if (err) {
CERROR("error: setattr objid "LPX64" subobj "
LPX64" on OST idx %d: rc = %d\n",
- set->set_oa->o_id, req->rq_oa->o_id,
- req->rq_idx, err);
+ set->set_oi->oi_oa->o_id,
+ req->rq_oi.oi_oa->o_id, req->rq_idx, err);
if (!rc)
rc = err;
}
RETURN(rc);
}
-static int lov_revalidate_policy(struct lov_obd *lov, struct lov_stripe_md *lsm)
+static int lov_setattr_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
{
- static int next_idx = 0;
- struct lov_tgt_desc *tgt;
- int i, count;
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ int err;
ENTRY;
- /* XXX - we should do something clever and take lsm
- * into account but just do round robin for now. */
-
- /* last_idx must always be less that count because
- * ld_tgt_count currently cannot shrink. */
- count = lov->desc.ld_tgt_count;
+ if (rc)
+ lovset->set_completes = 0;
+ err = lov_fini_setattr_set(lovset);
+ RETURN(rc ? rc : err);
+}
- for (i = next_idx, tgt = lov->tgts + i; i < count; i++, tgt++) {
- if (lov_tgt_active(lov, tgt, 0)) {
- next_idx = (i + 1) % count;
- RETURN(i);
- }
- }
+/* If @oti is given, the request goes from MDS and responses from OSTs are not
+ needed. Otherwise, a client is waiting for responses. */
+static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_trans_info *oti,
+ struct ptlrpc_request_set *rqset)
+{
+ struct lov_request_set *set;
+ struct lov_request *req;
+ struct list_head *pos;
+ struct lov_obd *lov;
+ int rc = 0;
+ ENTRY;
- for (i = 0, tgt = lov->tgts; i < next_idx; i++, tgt++) {
- if (lov_tgt_active(lov, tgt, 0)) {
- next_idx = (i + 1) % count;
- RETURN(i);
- }
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE) {
+ LASSERT(oti);
+ LASSERT(oti->oti_logcookies);
}
- RETURN(-EIO);
-}
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
-static int lov_revalidate_md(struct obd_export *exp, struct obdo *src_oa,
- struct lov_stripe_md *ea,
- struct obd_trans_info *oti)
-{
- struct obd_export *osc_exp;
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_stripe_md *lsm = ea;
- struct lov_stripe_md obj_md;
- struct lov_stripe_md *obj_mdp = &obj_md;
- struct lov_oinfo *loi;
- struct obdo *tmp_oa;
- int ost_idx, updates = 0, i;
- ENTRY;
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_setattr_set(exp, oinfo, oti, &set);
+ if (rc)
+ RETURN(rc);
- tmp_oa = obdo_alloc();
- if (tmp_oa == NULL)
- RETURN(-ENOMEM);
+ CDEBUG(D_INFO, "objid "LPX64": %ux%u byte stripes\n",
+ oinfo->oi_md->lsm_object_id, oinfo->oi_md->lsm_stripe_count,
+ oinfo->oi_md->lsm_stripe_size);
- loi = lsm->lsm_oinfo;
- for (i = 0; i < lsm->lsm_stripe_count; i++, loi++) {
- struct lov_tgt_desc *tgt;
- int rc;
+ list_for_each (pos, &set->set_list) {
+ req = list_entry(pos, struct lov_request, rq_link);
- if (!lov_tgt_changed(lov, loi))
- continue;
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
+ oti->oti_logcookies = set->set_cookies + req->rq_stripe;
- /* returns an active tgt. tgt->ltd_refcount is incremented. */
- ost_idx = lov_revalidate_policy(lov, lsm);
- if (ost_idx < 0) {
- /* FIXME: punt for now. */
- CERROR("lov_revalidate_policy failed; no active "
- "OSCs?\n");
- continue;
- }
+ CDEBUG(D_INFO, "objid "LPX64"[%d] has subobj "LPX64" at idx "
+ "%u\n", oinfo->oi_oa->o_id, req->rq_stripe,
+ req->rq_oi.oi_oa->o_id, req->rq_idx);
- /* create a new object */
- memcpy(tmp_oa, src_oa, sizeof(*tmp_oa));
- /* XXX: LOV STACKING: use real "obj_mdp" sub-data */
- tgt = lov->tgts + ost_idx;
- osc_exp = tgt->ltd_exp;
- rc = obd_create(osc_exp, tmp_oa, NULL, 0, &obj_mdp, oti);
+ rc = obd_setattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi, oti, rqset);
if (rc) {
- lov_tgt_decref(lov, tgt);
- CERROR("error creating new subobj at idx %d; "
- "rc = %d\n", ost_idx, rc);
- continue;
+ CERROR("error: setattr objid "LPX64" subobj "
+ LPX64" on OST idx %d: rc = %d\n",
+ set->set_oi->oi_oa->o_id,
+ req->rq_oi.oi_oa->o_id,
+ req->rq_idx, rc);
+ break;
}
+ }
- CDEBUG(D_INODE,
- "replacing idx %d gen %d objid "LPX64" subobj "LPX64" "
- "with idx %d gen %d objid "LPX64" subobj "LPX64".\n",
- loi->loi_ost_idx, loi->loi_ost_gen,
- loi->loi_id, loi->loi_gr,
- ost_idx, tgt->ltd_gen, tmp_oa->o_id, tmp_oa->o_gr);
-
- if (oti->oti_objid)
- oti->oti_objid[ost_idx] = tmp_oa->o_id;
- loi->loi_id = tmp_oa->o_id;
- loi->loi_gr = tmp_oa->o_gr;
- loi->loi_ost_idx = ost_idx;
- loi->loi_ost_gen = tgt->ltd_gen;
- lov_tgt_decref(lov, tgt);
- updates = 1;
+ /* If we are not waiting for responses on async requests, return. */
+ if (rc || !rqset || list_empty(&rqset->set_requests)) {
+ int err;
+ if (rc)
+ set->set_completes = 0;
+ err = lov_fini_setattr_set(set);
+ RETURN(rc ? rc : err);
}
- /* If we got an error revalidating an entry there's no need to
- * cleanup up objects we allocated here because the bad entry
- * still points to a deleted OST. */
+ LASSERT(rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_setattr_interpret;
+ rqset->set_arg = (void *)set;
- obdo_free(tmp_oa);
- RETURN(updates);
+ RETURN(0);
+}
+
+static int lov_punch_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
+{
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ int err;
+ ENTRY;
+
+ if (rc)
+ lovset->set_completes = 0;
+ err = lov_fini_punch_set(lovset);
+ RETURN(rc ? rc : err);
}
/* FIXME: maybe we'll just make one node the authoritative attribute node, then
* we can send this 'punch' to just the authoritative node and the nodes
* that the punch will affect. */
-static int lov_punch(struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md *lsm, obd_off start,
- obd_off end, struct obd_trans_info *oti,
- struct lustre_capa *capa)
+static int lov_punch(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_trans_info *oti,
+ struct ptlrpc_request_set *rqset)
{
struct lov_request_set *set;
struct lov_obd *lov;
struct list_head *pos;
struct lov_request *req;
- int err = 0, rc = 0;
+ int rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
lov = &exp->exp_obd->u.lov;
- rc = lov_prep_punch_set(exp, oa, lsm, start, end, oti, &set);
+ rc = lov_prep_punch_set(exp, oinfo, oti, &set);
if (rc)
RETURN(rc);
list_for_each (pos, &set->set_list) {
req = list_entry(pos, struct lov_request, rq_link);
- rc = obd_punch(lov->tgts[req->rq_idx].ltd_exp, req->rq_oa,
- NULL, req->rq_extent.start,
- req->rq_extent.end, NULL, capa);
- err = lov_update_punch_set(set, req, rc);
- if (err) {
+ rc = obd_punch(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi, NULL, rqset);
+ if (rc) {
CERROR("error: punch objid "LPX64" subobj "LPX64
- " on OST idx %d: rc = %d\n", set->set_oa->o_id,
- req->rq_oa->o_id, req->rq_idx, rc);
- if (!rc)
- rc = err;
+ " on OST idx %d: rc = %d\n",
+ set->set_oi->oi_oa->o_id,
+ req->rq_oi.oi_oa->o_id, req->rq_idx, rc);
+ break;
}
}
- err = lov_fini_punch_set(set);
- if (!rc)
- rc = err;
- RETURN(rc);
+
+ if (rc || list_empty(&rqset->set_requests)) {
+ int err;
+ err = lov_fini_punch_set(set);
+ RETURN(rc ? rc : err);
+ }
+
+ LASSERT(rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_punch_interpret;
+ rqset->set_arg = (void *)set;
+
+ RETURN(0);
}
static int lov_sync(struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md *lsm, obd_off start, obd_off end)
+ struct lov_stripe_md *lsm, obd_off start, obd_off end,
+ void *capa)
{
struct lov_request_set *set;
+ struct obd_info oinfo;
struct lov_obd *lov;
struct list_head *pos;
struct lov_request *req;
int err = 0, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
if (!exp->exp_obd)
RETURN(-ENODEV);
lov = &exp->exp_obd->u.lov;
- rc = lov_prep_sync_set(exp, oa, lsm, start, end, &set);
+ rc = lov_prep_sync_set(exp, &oinfo, oa, lsm, start, end, &set);
if (rc)
RETURN(rc);
list_for_each (pos, &set->set_list) {
req = list_entry(pos, struct lov_request, rq_link);
- rc = obd_sync(lov->tgts[req->rq_idx].ltd_exp, req->rq_oa,
- NULL, req->rq_extent.start, req->rq_extent.end);
+ rc = obd_sync(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ req->rq_oi.oi_oa, NULL,
+ req->rq_oi.oi_policy.l_extent.start,
+ req->rq_oi.oi_policy.l_extent.end, capa);
err = lov_update_common_set(set, req, rc);
if (err) {
CERROR("error: fsync objid "LPX64" subobj "LPX64
- " on OST idx %d: rc = %d\n", set->set_oa->o_id,
- req->rq_oa->o_id, req->rq_idx, rc);
+ " on OST idx %d: rc = %d\n",
+ set->set_oi->oi_oa->o_id,
+ req->rq_oi.oi_oa->o_id, req->rq_idx, rc);
if (!rc)
rc = err;
}
RETURN(rc);
}
-static int lov_brw_check(struct lov_obd *lov, struct obdo *oa,
- struct lov_stripe_md *lsm,
+static int lov_brw_check(struct lov_obd *lov, struct obd_info *lov_oinfo,
obd_count oa_bufs, struct brw_page *pga)
{
+ struct obd_info oinfo = { { { 0 } } };
int i, rc = 0;
- ENTRY;
+
+ oinfo.oi_oa = lov_oinfo->oi_oa;
/* The caller just wants to know if there's a chance that this
* I/O can succeed */
for (i = 0; i < oa_bufs; i++) {
- struct lov_oinfo *loi;
- struct lov_tgt_desc *tgt;
- int stripe;
+ int stripe = lov_stripe_number(lov_oinfo->oi_md, pga[i].off);
+ int ost = lov_oinfo->oi_md->lsm_oinfo[stripe]->loi_ost_idx;
obd_off start, end;
- if (!lov_stripe_intersects(lsm, i, pga[i].disk_offset,
- pga[i].disk_offset + pga[i].count,
+ if (!lov_stripe_intersects(lov_oinfo->oi_md, i, pga[i].off,
+ pga[i].off + pga[i].count,
&start, &end))
continue;
- stripe = lov_stripe_number(lsm, pga[i].disk_offset);
- loi = lsm->lsm_oinfo + stripe;
- tgt = lov->tgts + loi->loi_ost_idx;
-
- if (!lov_tgt_ready(lov, tgt, loi->loi_ost_gen)) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- RETURN(-EIO);
+ if (!lov->lov_tgts[ost] || !lov->lov_tgts[ost]->ltd_active) {
+ CDEBUG(D_HA, "lov idx %d inactive\n", ost);
+ return -EIO;
}
- rc = obd_brw(OBD_BRW_CHECK, tgt->ltd_exp, oa,
- NULL, 1, &pga[i], NULL);
- lov_tgt_decref(lov, tgt);
+
+ rc = obd_brw(OBD_BRW_CHECK, lov->lov_tgts[ost]->ltd_exp, &oinfo,
+ 1, &pga[i], NULL);
if (rc)
break;
}
- RETURN(rc);
+ return rc;
}
-static int lov_brw(int cmd, struct obd_export *exp, struct obdo *src_oa,
- struct lov_stripe_md *lsm, obd_count oa_bufs,
- struct brw_page *pga, struct obd_trans_info *oti)
+static int lov_brw(int cmd, struct obd_export *exp, struct obd_info *oinfo,
+ obd_count oa_bufs, struct brw_page *pga,
+ struct obd_trans_info *oti)
{
struct lov_request_set *set;
struct lov_request *req;
int err, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
if (cmd == OBD_BRW_CHECK) {
- rc = lov_brw_check(lov, src_oa, lsm, oa_bufs, pga);
+ rc = lov_brw_check(lov, oinfo, oa_bufs, pga);
RETURN(rc);
}
- rc = lov_prep_brw_set(exp, src_oa, lsm, oa_bufs, pga, oti, &set);
+ rc = lov_prep_brw_set(exp, oinfo, oa_bufs, pga, oti, &set);
if (rc)
RETURN(rc);
struct obd_export *sub_exp;
struct brw_page *sub_pga;
req = list_entry(pos, struct lov_request, rq_link);
-
- sub_exp = lov->tgts[req->rq_idx].ltd_exp;
+
+ sub_exp = lov->lov_tgts[req->rq_idx]->ltd_exp;
sub_pga = set->set_pga + req->rq_pgaidx;
- rc = obd_brw(cmd, sub_exp, req->rq_oa, req->rq_md,
- req->rq_oabufs, sub_pga, oti);
+ rc = obd_brw(cmd, sub_exp, &req->rq_oi, req->rq_oabufs,
+ sub_pga, oti);
if (rc)
break;
lov_update_common_set(set, req, rc);
{
struct lov_request_set *lovset = (struct lov_request_set *)data;
ENTRY;
-
+
if (rc) {
lovset->set_completes = 0;
lov_fini_brw_set(lovset);
} else {
rc = lov_fini_brw_set(lovset);
}
-
+
RETURN(rc);
}
-static int lov_brw_async(int cmd, struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md *lsm, obd_count oa_bufs,
- struct brw_page *pga, struct ptlrpc_request_set *set,
- struct obd_trans_info *oti)
+static int lov_brw_async(int cmd, struct obd_export *exp,
+ struct obd_info *oinfo, obd_count oa_bufs,
+ struct brw_page *pga, struct obd_trans_info *oti,
+ struct ptlrpc_request_set *set)
{
struct lov_request_set *lovset;
struct lov_request *req;
int rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
if (cmd == OBD_BRW_CHECK) {
- rc = lov_brw_check(lov, oa, lsm, oa_bufs, pga);
+ rc = lov_brw_check(lov, oinfo, oa_bufs, pga);
RETURN(rc);
}
- rc = lov_prep_brw_set(exp, oa, lsm, oa_bufs, pga, oti, &lovset);
+ rc = lov_prep_brw_set(exp, oinfo, oa_bufs, pga, oti, &lovset);
if (rc)
RETURN(rc);
struct obd_export *sub_exp;
struct brw_page *sub_pga;
req = list_entry(pos, struct lov_request, rq_link);
-
- sub_exp = lov->tgts[req->rq_idx].ltd_exp;
+
+ sub_exp = lov->lov_tgts[req->rq_idx]->ltd_exp;
sub_pga = lovset->set_pga + req->rq_pgaidx;
- rc = obd_brw_async(cmd, sub_exp, req->rq_oa, req->rq_md,
- req->rq_oabufs, sub_pga, set, oti);
+ rc = obd_brw_async(cmd, sub_exp, &req->rq_oi, req->rq_oabufs,
+ sub_pga, oti, set);
if (rc)
GOTO(out, rc);
lov_update_common_set(lovset, req, rc);
LASSERT(set->set_interpret == NULL);
set->set_interpret = (set_interpreter_func)lov_brw_interpret;
set->set_arg = (void *)lovset;
-
+
RETURN(rc);
out:
lov_fini_brw_set(lovset);
return lap->lap_caller_ops->ap_make_ready(lap->lap_caller_data, cmd);
}
+
static int lov_ap_refresh_count(void *data, int cmd)
{
struct lov_async_page *lap = LAP_FROM_COOKIE(data);
return lap->lap_caller_ops->ap_refresh_count(lap->lap_caller_data,
cmd);
}
+
static void lov_ap_fill_obdo(void *data, int cmd, struct obdo *oa)
{
struct lov_async_page *lap = LAP_FROM_COOKIE(data);
lap->lap_caller_ops->ap_fill_obdo(lap->lap_caller_data, cmd, oa);
/* XXX woah, shouldn't we be altering more here? size? */
oa->o_id = lap->lap_loi_id;
+ oa->o_gr = lap->lap_loi_gr;
+ oa->o_valid |= OBD_MD_FLGROUP;
+ oa->o_stripe_idx = lap->lap_stripe;
+}
+
+static void lov_ap_update_obdo(void *data, int cmd, struct obdo *oa,
+ obd_valid valid)
+{
+ struct lov_async_page *lap = LAP_FROM_COOKIE(data);
+
+ lap->lap_caller_ops->ap_update_obdo(lap->lap_caller_data, cmd,oa,valid);
}
-static void lov_ap_completion(void *data, int cmd, struct obdo *oa, int rc)
+static int lov_ap_completion(void *data, int cmd, struct obdo *oa, int rc)
{
struct lov_async_page *lap = LAP_FROM_COOKIE(data);
/* in a raid1 regime this would down a count of many ios
* in flight, onl calling the caller_ops completion when all
* the raid1 ios are complete */
- lap->lap_caller_ops->ap_completion(lap->lap_caller_data, cmd, oa, rc);
+ rc = lap->lap_caller_ops->ap_completion(lap->lap_caller_data,cmd,oa,rc);
+ return rc;
+}
+
+static struct obd_capa *lov_ap_lookup_capa(void *data, int cmd)
+{
+ struct lov_async_page *lap = LAP_FROM_COOKIE(data);
+ return lap->lap_caller_ops->ap_lookup_capa(lap->lap_caller_data, cmd);
}
static struct obd_async_page_ops lov_async_page_ops = {
.ap_make_ready = lov_ap_make_ready,
.ap_refresh_count = lov_ap_refresh_count,
.ap_fill_obdo = lov_ap_fill_obdo,
+ .ap_update_obdo = lov_ap_update_obdo,
.ap_completion = lov_ap_completion,
+ .ap_lookup_capa = lov_ap_lookup_capa,
};
-static int lov_prep_async_page(struct obd_export *exp,
- struct lov_stripe_md *lsm,
- struct lov_oinfo *loi, struct page *page,
- obd_off offset, struct obd_async_page_ops *ops,
- void *data, void **res)
+int lov_prep_async_page(struct obd_export *exp, struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi, cfs_page_t *page,
+ obd_off offset, struct obd_async_page_ops *ops,
+ void *data, void **res)
{
struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_tgt_desc *tgt;
struct lov_async_page *lap;
- int rc, stripe;
+ int rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ if (!page) {
+ int i = 0;
+ /* Find an existing osc so we can get it's stupid sizeof(*oap).
+ Only because of this layering limitation will a client
+ mount with no osts fail */
+ while (!lov->lov_tgts || !lov->lov_tgts[i] ||
+ !lov->lov_tgts[i]->ltd_exp) {
+ i++;
+ if (i >= lov->desc.ld_tgt_count)
+ RETURN(-ENOMEDIUM);
+ }
+ rc = size_round(sizeof(*lap)) +
+ obd_prep_async_page(lov->lov_tgts[i]->ltd_exp, NULL,
+ NULL, NULL, 0, NULL, NULL, NULL);
+ RETURN(rc);
+ }
+ ASSERT_LSM_MAGIC(lsm);
LASSERT(loi == NULL);
- stripe = lov_stripe_number(lsm, offset);
- loi = &lsm->lsm_oinfo[stripe];
-
- OBD_ALLOC(lap, sizeof(*lap));
- if (lap == NULL)
- RETURN(-ENOMEM);
-
- lap->lap_magic = LAP_MAGIC;
+ lap = *res;
+ lap->lap_magic = LOV_AP_MAGIC;
lap->lap_caller_ops = ops;
lap->lap_caller_data = data;
- /* FIXME handle multiple oscs after landing b_raid1 */
- lap->lap_stripe = stripe;
- switch (lsm->lsm_pattern) {
- case LOV_PATTERN_RAID0:
- lov_stripe_offset(lsm, offset, lap->lap_stripe,
- &lap->lap_sub_offset);
- break;
- case LOV_PATTERN_CMOBD:
- lap->lap_sub_offset = offset;
- break;
- default:
- LBUG();
- }
+ /* for now only raid 0 which passes through */
+ lap->lap_stripe = lov_stripe_number(lsm, offset);
+ lov_stripe_offset(lsm, offset, lap->lap_stripe, &lap->lap_sub_offset);
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
/* so the callback doesn't need the lsm */
lap->lap_loi_id = loi->loi_id;
+ lap->lap_loi_gr = lsm->lsm_object_gr;
+ LASSERT(lsm->lsm_object_gr > 0);
+
+ lap->lap_sub_cookie = (void *)lap + size_round(sizeof(*lap));
- tgt = lov->tgts + loi->loi_ost_idx;
-
- if (lov_tgt_ready(lov, tgt, loi->loi_ost_gen)) {
- rc = obd_prep_async_page(tgt->ltd_exp, lsm, loi, page,
- lap->lap_sub_offset,
- &lov_async_page_ops, lap,
- &lap->lap_sub_cookie);
- lov_tgt_decref(lov, tgt);
- } else {
- rc = -EIO;
- }
-
- if (rc) {
- OBD_FREE(lap, sizeof(*lap));
+ rc = obd_prep_async_page(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ lsm, loi, page, lap->lap_sub_offset,
+ &lov_async_page_ops, lap,
+ &lap->lap_sub_cookie);
+ if (rc)
RETURN(rc);
- }
CDEBUG(D_CACHE, "lap %p page %p cookie %p off "LPU64"\n", lap, page,
lap->lap_sub_cookie, offset);
- *res = lap;
RETURN(0);
}
struct lov_stripe_md *lsm,
struct lov_oinfo *loi, void *cookie,
int cmd, obd_off off, int count,
- obd_flags brw_flags, obd_flags async_flags)
+ obd_flag brw_flags, obd_flag async_flags)
{
struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_tgt_desc *tgt;
struct lov_async_page *lap;
int rc;
LASSERT(loi == NULL);
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
lap = LAP_FROM_COOKIE(cookie);
- loi = &lsm->lsm_oinfo[lap->lap_stripe];
- tgt = lov->tgts + loi->loi_ost_idx;
- if (!lov_tgt_valid(lov, tgt, loi->loi_ost_gen))
- RETURN(-EIO);
-
- rc = obd_queue_async_io(tgt->ltd_exp, lsm, loi, lap->lap_sub_cookie,
- cmd, off, count, brw_flags, async_flags);
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
- lov_tgt_decref(lov, tgt);
+ rc = obd_queue_async_io(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp, lsm,
+ loi, lap->lap_sub_cookie, cmd, off, count,
+ brw_flags, async_flags);
RETURN(rc);
}
static int lov_set_async_flags(struct obd_export *exp,
struct lov_stripe_md *lsm,
struct lov_oinfo *loi, void *cookie,
- obd_flags async_flags)
+ obd_flag async_flags)
{
struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_tgt_desc *tgt;
struct lov_async_page *lap;
int rc;
LASSERT(loi == NULL);
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
lap = LAP_FROM_COOKIE(cookie);
- loi = &lsm->lsm_oinfo[lap->lap_stripe];
- tgt = lov->tgts + loi->loi_ost_idx;
- if (!lov_tgt_ready(lov, tgt, loi->loi_ost_gen))
- RETURN(-EIO);
-
- rc = obd_set_async_flags(tgt->ltd_exp, lsm, loi, lap->lap_sub_cookie,
- async_flags);
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
- lov_tgt_decref(lov, tgt);
+ rc = obd_set_async_flags(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ lsm, loi, lap->lap_sub_cookie, async_flags);
RETURN(rc);
}
struct lov_oinfo *loi,
struct obd_io_group *oig, void *cookie,
int cmd, obd_off off, int count,
- obd_flags brw_flags, obd_flags async_flags)
+ obd_flag brw_flags, obd_flag async_flags)
{
struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_tgt_desc *tgt;
struct lov_async_page *lap;
int rc;
LASSERT(loi == NULL);
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
lap = LAP_FROM_COOKIE(cookie);
- loi = &lsm->lsm_oinfo[lap->lap_stripe];
- tgt = lov->tgts + loi->loi_ost_idx;
- if (!lov_tgt_valid(lov, tgt, loi->loi_ost_gen))
- RETURN(-EIO);
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
- rc = obd_queue_group_io(tgt->ltd_exp, lsm, loi, oig,
- lap->lap_sub_cookie, cmd, off, count,
+ rc = obd_queue_group_io(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp, lsm,
+ loi, oig, lap->lap_sub_cookie, cmd, off, count,
brw_flags, async_flags);
-
- lov_tgt_decref(lov, tgt);
RETURN(rc);
}
LASSERT(loi == NULL);
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
-
- loi = lsm->lsm_oinfo;
- for (i = 0; i < lsm->lsm_stripe_count; i++, loi++) {
- struct lov_tgt_desc *tgt = lov->tgts + loi->loi_ost_idx;
+ ASSERT_LSM_MAGIC(lsm);
- if (!lov_tgt_ready(lov, tgt, loi->loi_ost_gen)) {
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ loi = lsm->lsm_oinfo[i];
+ if (!lov->lov_tgts[loi->loi_ost_idx] ||
+ !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
continue;
}
- err = obd_trigger_group_io(tgt->ltd_exp, lsm, loi, oig);
-
- lov_tgt_decref(lov, tgt);
-
+ err = obd_trigger_group_io(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ lsm, loi, oig);
if (rc == 0 && err != 0)
rc = err;
};
struct lov_oinfo *loi, void *cookie)
{
struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_tgt_desc *tgt;
struct lov_async_page *lap;
int rc;
- ENTRY;
LASSERT(loi == NULL);
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
lap = LAP_FROM_COOKIE(cookie);
- loi = &lsm->lsm_oinfo[lap->lap_stripe];
- tgt = lov->tgts + loi->loi_ost_idx;
-
- /* FIXME: this leaks the page, but it should never really happen.
- * Should we make this an LBUG() ? */
- if (!lov_tgt_valid(lov, tgt, loi->loi_ost_gen)) {
- CERROR("page found with invalid OSC !");
- RETURN(-EIO);
- }
-
- rc = obd_teardown_async_page(tgt->ltd_exp, lsm, loi,
- lap->lap_sub_cookie);
- lov_tgt_decref(lov, tgt);
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
+ rc = obd_teardown_async_page(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ lsm, loi, lap->lap_sub_cookie);
if (rc) {
CERROR("unable to teardown sub cookie %p: %d\n",
lap->lap_sub_cookie, rc);
RETURN(rc);
}
- OBD_FREE(lap, sizeof(*lap));
RETURN(rc);
}
-static int lov_enqueue(struct obd_export *exp, struct lov_stripe_md *lsm,
- __u32 type, ldlm_policy_data_t *policy, __u32 mode,
- int *flags, void *bl_cb, void *cp_cb, void *gl_cb,
- void *data,__u32 lvb_len, void *lvb_swabber,
- struct lustre_handle *lockh)
+static int lov_enqueue_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
+{
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ ENTRY;
+ rc = lov_fini_enqueue_set(lovset, lovset->set_ei->ei_mode, rc, rqset);
+ RETURN(rc);
+}
+
+static int lov_enqueue(struct obd_export *exp, struct obd_info *oinfo,
+ struct ldlm_enqueue_info *einfo,
+ struct ptlrpc_request_set *rqset)
{
+ ldlm_mode_t mode = einfo->ei_mode;
struct lov_request_set *set;
struct lov_request *req;
struct list_head *pos;
- struct lustre_handle *lov_lockhp;
struct lov_obd *lov;
ldlm_error_t rc;
- int save_flags = *flags;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
+ LASSERT(mode == (mode & -mode));
/* we should never be asked to replay a lock this way. */
- LASSERT((*flags & LDLM_FL_REPLAY) == 0);
+ LASSERT((oinfo->oi_flags & LDLM_FL_REPLAY) == 0);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
lov = &exp->exp_obd->u.lov;
- rc = lov_prep_enqueue_set(exp, lsm, policy, mode, lockh, &set);
+ rc = lov_prep_enqueue_set(exp, oinfo, einfo, &set);
if (rc)
RETURN(rc);
list_for_each (pos, &set->set_list) {
- ldlm_policy_data_t sub_policy;
req = list_entry(pos, struct lov_request, rq_link);
- lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
- LASSERT(lov_lockhp);
-
- *flags = save_flags;
- sub_policy.l_extent = req->rq_extent;
- rc = obd_enqueue(lov->tgts[req->rq_idx].ltd_exp, req->rq_md,
- type, &sub_policy, mode, flags, bl_cb,
- cp_cb, gl_cb, data, lvb_len, lvb_swabber,
- lov_lockhp);
- rc = lov_update_enqueue_set(set, req, rc, save_flags);
+ rc = obd_enqueue(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi, einfo, rqset);
if (rc != ELDLM_OK)
- break;
+ GOTO(out, rc);
}
- lov_fini_enqueue_set(set, mode);
+ if (rqset && !list_empty(&rqset->set_requests)) {
+ LASSERT(rc == 0);
+ LASSERT(rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_enqueue_interpret;
+ rqset->set_arg = (void *)set;
+ RETURN(rc);
+ }
+out:
+ rc = lov_fini_enqueue_set(set, mode, rc, rqset);
RETURN(rc);
}
int *flags, void *data, struct lustre_handle *lockh)
{
struct lov_request_set *set;
+ struct obd_info oinfo;
struct lov_request *req;
struct list_head *pos;
struct lov_obd *lov = &exp->exp_obd->u.lov;
int lov_flags, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
+ LASSERT((*flags & LDLM_FL_TEST_LOCK) || mode == (mode & -mode));
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
lov = &exp->exp_obd->u.lov;
- rc = lov_prep_match_set(exp, lsm, policy, mode, lockh, &set);
+ rc = lov_prep_match_set(exp, &oinfo, lsm, policy, mode, lockh, &set);
if (rc)
RETURN(rc);
lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
LASSERT(lov_lockhp);
- sub_policy.l_extent = req->rq_extent;
lov_flags = *flags;
+ sub_policy.l_extent = req->rq_oi.oi_policy.l_extent;
- rc = obd_match(lov->tgts[req->rq_idx].ltd_exp, req->rq_md,
- type, &sub_policy, mode, &lov_flags, data,
- lov_lockhp);
+ rc = obd_match(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ req->rq_oi.oi_md, type, &sub_policy,
+ mode, &lov_flags, data, lov_lockhp);
rc = lov_update_match_set(set, req, rc);
- if (rc != 1)
+ if (rc <= 0)
break;
}
lov_fini_match_set(set, mode, *flags);
void *data)
{
struct lov_obd *lov;
- struct lov_oinfo *loi;
int rc = 0, i;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
LASSERT(lsm->lsm_object_gr > 0);
lov = &exp->exp_obd->u.lov;
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
- struct lov_tgt_desc *tgt = lov->tgts + loi->loi_ost_idx;
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
struct lov_stripe_md submd;
+ struct lov_oinfo *loi = lsm->lsm_oinfo[i];
+ if (!lov->lov_tgts[loi->loi_ost_idx]) {
+ CDEBUG(D_HA, "lov idx %d NULL \n", loi->loi_ost_idx);
+ continue;
+ }
+
submd.lsm_object_id = loi->loi_id;
submd.lsm_object_gr = lsm->lsm_object_gr;
submd.lsm_stripe_count = 0;
-
- if (!lov_tgt_valid(lov, tgt, loi->loi_ost_gen)) {
- CDEBUG(D_HA, "lov idx %d invalid.\n", loi->loi_ost_idx);
- continue;
- }
- rc = obd_change_cbdata(tgt->ltd_exp, &submd, it, data);
- lov_tgt_decref(lov, tgt);
+ rc = obd_change_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ &submd, it, data);
}
RETURN(rc);
}
__u32 mode, struct lustre_handle *lockh)
{
struct lov_request_set *set;
+ struct obd_info oinfo;
struct lov_request *req;
struct list_head *pos;
struct lov_obd *lov = &exp->exp_obd->u.lov;
int err = 0, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
LASSERT(lsm->lsm_object_gr > 0);
-
LASSERT(lockh);
lov = &exp->exp_obd->u.lov;
- rc = lov_prep_cancel_set(exp, lsm, mode, lockh, &set);
+ rc = lov_prep_cancel_set(exp, &oinfo, lsm, mode, lockh, &set);
if (rc)
RETURN(rc);
req = list_entry(pos, struct lov_request, rq_link);
lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
- rc = obd_cancel(lov->tgts[req->rq_idx].ltd_exp, req->rq_md,
- mode, lov_lockhp);
+ rc = obd_cancel(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ req->rq_oi.oi_md, mode, lov_lockhp);
rc = lov_update_common_set(set, req, rc);
if (rc) {
CERROR("error: cancel objid "LPX64" subobj "
LPX64" on OST idx %d: rc = %d\n",
lsm->lsm_object_id,
- req->rq_md->lsm_object_id, req->rq_idx, rc);
+ req->rq_oi.oi_md->lsm_object_id,
+ req->rq_idx, rc);
err = rc;
}
-
+
}
lov_fini_cancel_set(set);
RETURN(err);
}
static int lov_cancel_unused(struct obd_export *exp,
- struct lov_stripe_md *lsm,
- int flags, void *opaque)
+ struct lov_stripe_md *lsm,
+ int flags, void *opaque)
{
struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_tgt_desc *tgt;
int rc = 0, i;
ENTRY;
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
+
lov = &exp->exp_obd->u.lov;
if (lsm == NULL) {
- tgt = lov->tgts;
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
int err;
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
+ continue;
- if (lov_tgt_ready(lov, tgt, 0)) {
- err = obd_cancel_unused(tgt->ltd_exp, NULL,
- flags, opaque);
- lov_tgt_decref(lov, tgt);
- } else {
- if (obd_uuid_empty(&tgt->uuid))
- continue;
- CERROR("error: cancel unused "
- "OST idx %d: OST inactive.\n", i);
- err = -EIO;
- }
+ err = obd_cancel_unused(lov->lov_tgts[i]->ltd_exp, NULL,
+ flags, opaque);
if (!rc)
rc = err;
}
RETURN(rc);
}
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
-
- if (!exp || !exp->exp_obd)
- RETURN(-ENODEV);
+ ASSERT_LSM_MAGIC(lsm);
LASSERT(lsm->lsm_object_gr > 0);
-
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
struct lov_stripe_md submd;
+ struct lov_oinfo *loi = lsm->lsm_oinfo[i];
int err;
+ if (!lov->lov_tgts[loi->loi_ost_idx]) {
+ CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
+ continue;
+ }
+
+ if (!lov->lov_tgts[loi->loi_ost_idx]->ltd_active)
+ CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
+
submd.lsm_object_id = loi->loi_id;
submd.lsm_object_gr = lsm->lsm_object_gr;
submd.lsm_stripe_count = 0;
+ err = obd_cancel_unused(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ &submd, flags, opaque);
+ if (err && lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
+ CERROR("error: cancel unused objid "LPX64" subobj "LPX64
+ " on OST idx %d: rc = %d\n", lsm->lsm_object_id,
+ loi->loi_id, loi->loi_ost_idx, err);
+ if (!rc)
+ rc = err;
+ }
+ }
+ RETURN(rc);
+}
- tgt = lov->tgts + loi->loi_ost_idx;
- if (lov_tgt_ready(lov, tgt, loi->loi_ost_gen)) {
- err = obd_cancel_unused(tgt->ltd_exp, &submd, flags,
- opaque);
- lov_tgt_decref(lov, tgt);
- if (err && lov_tgt_ready(lov, tgt, loi->loi_ost_gen)) {
- lov_tgt_decref(lov, tgt);
- CERROR("error: cancel unused objid "LPX64" "
- "subobj "LPX64" OST idx %d: rc = %d\n",
- lsm->lsm_object_id, loi->loi_id,
- loi->loi_ost_idx, err);
- }
- } else {
- err = -EIO;
- CERROR("error: cancel unused objid "LPX64" "
- "subobj "LPX64" on OST idx %d: OST inactive.\n",
- lsm->lsm_object_id,
- loi->loi_id, loi->loi_ost_idx);
+static int lov_join_lru(struct obd_export *exp,
+ struct lov_stripe_md *lsm, int join)
+{
+ struct lov_obd *lov;
+ int i, count = 0;
+ ENTRY;
+
+ ASSERT_LSM_MAGIC(lsm);
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
+
+ lov = &exp->exp_obd->u.lov;
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ struct lov_stripe_md submd;
+ struct lov_oinfo *loi = lsm->lsm_oinfo[i];
+ int rc = 0;
+
+ if (!lov->lov_tgts[loi->loi_ost_idx]) {
+ CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
+ continue;
}
- if (!rc)
- rc = err;
+ if (!lov->lov_tgts[loi->loi_ost_idx]->ltd_active)
+ CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
+
+ submd.lsm_object_id = loi->loi_id;
+ submd.lsm_object_gr = lsm->lsm_object_gr;
+ submd.lsm_stripe_count = 0;
+ rc = obd_join_lru(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ &submd, join);
+ if (rc < 0) {
+ CERROR("join lru failed. objid: "LPX64" subobj: "LPX64
+ " ostidx: %d rc: %d\n", lsm->lsm_object_id,
+ loi->loi_id, loi->loi_ost_idx, rc);
+ return rc;
+ } else {
+ count += rc;
+ }
}
- RETURN(rc);
+ RETURN(count);
+}
+
+static int lov_statfs_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
+{
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ int err;
+ ENTRY;
+
+ if (rc)
+ lovset->set_completes = 0;
+
+ err = lov_fini_statfs_set(lovset);
+ RETURN(rc ? rc : err);
}
-#define LOV_U64_MAX ((__u64)~0ULL)
-#define LOV_SUM_MAX(tot, add) \
- do { \
- if ((tot) + (add) < (tot)) \
- (tot) = LOV_U64_MAX; \
- else \
- (tot) += (add); \
- } while(0)
+static int lov_statfs_async(struct obd_device *obd, struct obd_info *oinfo,
+ __u64 max_age, struct ptlrpc_request_set *rqset)
+{
+ struct lov_request_set *set;
+ struct lov_request *req;
+ struct list_head *pos;
+ struct lov_obd *lov;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(oinfo != NULL);
+ LASSERT(oinfo->oi_osfs != NULL);
+
+ lov = &obd->u.lov;
+ rc = lov_prep_statfs_set(obd, oinfo, &set);
+ if (rc)
+ RETURN(rc);
+
+ list_for_each (pos, &set->set_list) {
+ struct obd_device *osc_obd;
+
+ req = list_entry(pos, struct lov_request, rq_link);
+
+ osc_obd = class_exp2obd(lov->lov_tgts[req->rq_idx]->ltd_exp);
+ rc = obd_statfs_async(osc_obd, &req->rq_oi, max_age, rqset);
+ if (rc)
+ break;
+ }
+
+ if (rc || list_empty(&rqset->set_requests)) {
+ int err;
+ if (rc)
+ set->set_completes = 0;
+ err = lov_fini_statfs_set(set);
+ RETURN(rc ? rc : err);
+ }
+
+ LASSERT(rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_statfs_interpret;
+ rqset->set_arg = (void *)set;
+ RETURN(0);
+}
static int lov_statfs(struct obd_device *obd, struct obd_statfs *osfs,
- unsigned long max_age)
+ __u64 max_age)
{
struct lov_obd *lov = &obd->u.lov;
- struct lov_tgt_desc *tgt = lov->tgts;
struct obd_statfs lov_sfs;
int set = 0;
- int rc = 0;
+ int rc = 0, err;
int i;
ENTRY;
-
/* We only get block data from the OBD */
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
- int err;
-
- if (!lov_tgt_active(lov, tgt, 0)) {
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active) {
CDEBUG(D_HA, "lov idx %d inactive\n", i);
continue;
}
- err = obd_statfs(class_exp2obd(tgt->ltd_exp), &lov_sfs,max_age);
- lov_tgt_decref(lov, tgt);
+ err = obd_statfs(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
+ &lov_sfs, max_age);
if (err) {
- if (lov_tgt_active(lov, tgt, 0)) {
- lov_tgt_decref(lov, tgt);
- if (!rc)
- rc = err;
- }
+ if (lov->lov_tgts[i]->ltd_active && !rc)
+ rc = err;
continue;
}
-
- if (!set) {
- memcpy(osfs, &lov_sfs, sizeof(lov_sfs));
- set = 1;
- } else {
- osfs->os_bfree += lov_sfs.os_bfree;
- osfs->os_bavail += lov_sfs.os_bavail;
- osfs->os_blocks += lov_sfs.os_blocks;
- /* XXX not sure about this one - depends on policy.
- * - could be minimum if we always stripe on all OBDs
- * (but that would be wrong for any other policy,
- * if one of the OBDs has no more objects left)
- * - could be sum if we stripe whole objects
- * - could be average, just to give a nice number
- *
- * To give a "reasonable" (if not wholly accurate)
- * number, we divide the total number of free objects
- * by expected stripe count (watch out for overflow).
- */
- LOV_SUM_MAX(osfs->os_files, lov_sfs.os_files);
- LOV_SUM_MAX(osfs->os_ffree, lov_sfs.os_ffree);
- }
+ lov_update_statfs(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
+ osfs, &lov_sfs, set);
+ set++;
}
- if (set) {
- __u32 expected_stripes = lov->desc.ld_default_stripe_count ?
- lov->desc.ld_default_stripe_count :
- lov->desc.ld_active_tgt_count;
-
- if ((lov->desc.ld_default_stripe_count == 0) ||
- (lov->desc.ld_default_stripe_count >
- lov->desc.ld_active_tgt_count)) {
- expected_stripes = lov->desc.ld_active_tgt_count;
- } else {
- expected_stripes = lov->desc.ld_default_stripe_count;
- }
+ err = lov_fini_statfs(obd, osfs, set);
+ qos_update(lov);
- if (osfs->os_files != LOV_U64_MAX)
- do_div(osfs->os_files, expected_stripes);
- if (osfs->os_ffree != LOV_U64_MAX)
- do_div(osfs->os_ffree, expected_stripes);
- } else if (!rc)
- rc = -EIO;
-
- RETURN(rc);
+ RETURN(rc ? rc : err);
}
static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
{
struct obd_device *obddev = class_exp2obd(exp);
struct lov_obd *lov = &obddev->u.lov;
- struct lov_tgt_desc *tgt;
int i, rc, count = lov->desc.ld_tgt_count;
struct obd_uuid *uuidp;
ENTRY;
switch (cmd) {
case OBD_IOC_LOV_GET_CONFIG: {
- struct obd_ioctl_data *data = karg;
+ struct obd_ioctl_data *data;
struct lov_desc *desc;
char *buf = NULL;
__u32 *genp;
- buf = NULL;
len = 0;
if (obd_ioctl_getdata(&buf, &len, (void *)uarg))
RETURN(-EINVAL);
uuidp = (struct obd_uuid *)data->ioc_inlbuf2;
genp = (__u32 *)data->ioc_inlbuf3;
/* the uuid will be empty for deleted OSTs */
- lov_tgts_lock(lov);
- tgt = lov->tgts;
- for (i = 0; i < count; i++, uuidp++, genp++, tgt++) {
- obd_str2uuid(uuidp, (char *)tgt->uuid.uuid);
- *genp = tgt->ltd_gen;
+ for (i = 0; i < count; i++, uuidp++, genp++) {
+ if (!lov->lov_tgts[i])
+ continue;
+ *uuidp = lov->lov_tgts[i]->ltd_uuid;
+ *genp = lov->lov_tgts[i]->ltd_gen;
}
- lov_tgts_unlock(lov);
rc = copy_to_user((void *)uarg, buf, len);
if (rc)
break;
default: {
int set = 0;
+
if (count == 0)
RETURN(-ENOTTY);
+
rc = 0;
- for (i = 0, tgt = lov->tgts; i < count; i++, tgt++) {
+ for (i = 0; i < count; i++) {
int err;
- if (!lov_tgt_active(lov, tgt, 0)) {
- CERROR("error: iocontrol failed for OSC %s on "
- "OST idx %d: OST inactive.\n",
- tgt->uuid.uuid, i);
- if (!rc)
- rc = -EIO;
+ /* OST was disconnected */
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
continue;
- }
- err = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
- lov_tgt_decref(lov, tgt);
- if (err) {
- if (lov_tgt_ready(lov, tgt, 0)) {
- lov_tgt_decref(lov, tgt);
- CERROR("error: iocontrol OSC %s on OST "
+ err = obd_iocontrol(cmd, lov->lov_tgts[i]->ltd_exp,
+ len, karg, uarg);
+ if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK) {
+ RETURN(err);
+ } else if (err) {
+ if (lov->lov_tgts[i]->ltd_active) {
+ CDEBUG(err == -ENOTTY ?
+ D_IOCTL : D_WARNING,
+ "iocontrol OSC %s on OST "
"idx %d cmd %x: err = %d\n",
- lov->tgts[i].uuid.uuid, i,
- cmd, err);
+ lov_uuid2str(lov, i),
+ i, cmd, err);
if (!rc)
rc = err;
}
- } else
+ } else {
set = 1;
+ }
}
if (!set && !rc)
rc = -EIO;
{
struct obd_device *obddev = class_exp2obd(exp);
struct lov_obd *lov = &obddev->u.lov;
- struct lov_tgt_desc *tgt;
- int i;
+ int i, rc;
ENTRY;
if (!vallen || !val)
RETURN(-EFAULT);
- if (keylen > strlen("lock_to_stripe") &&
- strcmp(key, "lock_to_stripe") == 0) {
+ lov_getref(obddev);
+
+ if (KEY_IS("lock_to_stripe")) {
struct {
char name[16];
struct ldlm_lock *lock;
struct lov_stripe_md *lsm;
} *data = key;
- struct lov_oinfo *loi;
struct ldlm_res_id *res_id = &data->lock->l_resource->lr_name;
+ struct lov_oinfo *loi;
__u32 *stripe = val;
if (*vallen < sizeof(*stripe))
- RETURN(-EFAULT);
+ GOTO(out, rc = -EFAULT);
*vallen = sizeof(*stripe);
/* XXX This is another one of those bits that will need to
/* XXX - it's assumed all the locks for deleted OSTs have
* been cancelled. Also, the export for deleted OSTs will
* be NULL and won't match the lock's export. */
- lov_tgts_lock(lov);
- for (i = 0, loi = data->lsm->lsm_oinfo;
- i < data->lsm->lsm_stripe_count;
- i++, loi++) {
- if (lov->tgts[loi->loi_ost_idx].ltd_exp ==
- data->lock->l_conn_export &&
+ for (i = 0; i < data->lsm->lsm_stripe_count; i++) {
+ loi = data->lsm->lsm_oinfo[i];
+ if (!lov->lov_tgts[loi->loi_ost_idx])
+ continue;
+ if (lov->lov_tgts[loi->loi_ost_idx]->ltd_exp ==
+ data->lock->l_conn_export &&
loi->loi_id == res_id->name[0] &&
loi->loi_gr == res_id->name[2]) {
- lov_tgts_unlock(lov);
*stripe = i;
- RETURN(0);
+ GOTO(out, rc = 0);
}
}
- lov_tgts_unlock(lov);
-
- /* This can happen if a deleted OST has been replaced
- * in the lsm by the MDS. */
LDLM_ERROR(data->lock, "lock on inode without such object");
dump_lsm(D_ERROR, data->lsm);
- portals_debug_dumpstack(NULL);
-
- RETURN(-ENXIO);
- } else if (keylen >= strlen("size_to_stripe") &&
- strcmp(key, "size_to_stripe") == 0) {
- struct {
- int stripe_number;
- __u64 size;
- struct lov_stripe_md *lsm;
- } *data = val;
-
- if (*vallen < sizeof(*data))
- RETURN(-EFAULT);
-
- data->size = lov_size_to_stripe(data->lsm, data->size,
- data->stripe_number);
- RETURN(0);
- } else if (keylen >= strlen("last_id") && strcmp(key, "last_id") == 0) {
- __u32 size = sizeof(obd_id);
+ GOTO(out, rc = -ENXIO);
+ } else if (KEY_IS("last_id")) {
obd_id *ids = val;
- int rc = 0;
-
- tgt = lov->tgts;
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
- if (!lov_tgt_active(lov, tgt, 0))
+ int size = sizeof(obd_id);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
continue;
- rc = obd_get_info(tgt->ltd_exp, keylen, key, &size,
- ids + i);
- lov_tgt_decref(lov, tgt);
+ rc = obd_get_info(lov->lov_tgts[i]->ltd_exp,
+ keylen, key, &size, ids + i);
if (rc != 0)
- RETURN(rc);
+ GOTO(out, rc);
}
- RETURN(0);
- } else if (keylen >= strlen("lovdesc") && strcmp(key, "lovdesc") == 0) {
+ GOTO(out, rc = 0);
+ } else if (KEY_IS(KEY_LOVDESC)) {
struct lov_desc *desc_ret = val;
*desc_ret = lov->desc;
- RETURN(0);
+ GOTO(out, rc = 0);
}
- RETURN(-EINVAL);
+ rc = -EINVAL;
+out:
+ lov_putref(obddev);
+ RETURN(rc);
}
-static int lov_set_info(struct obd_export *exp, obd_count keylen,
- void *key, obd_count vallen, void *val)
+static int lov_set_info_async(struct obd_export *exp, obd_count keylen,
+ void *key, obd_count vallen, void *val,
+ struct ptlrpc_request_set *set)
{
struct obd_device *obddev = class_exp2obd(exp);
struct lov_obd *lov = &obddev->u.lov;
- struct lov_tgt_desc *tgt;
int i, rc = 0, err;
+ int no_set = !set;
+ int incr = 0, check_uuid = 0, do_inactive = 0;
ENTRY;
-#define KEY_IS(str) \
- (keylen == strlen(str) && memcmp(key, str, keylen) == 0)
-
- if (KEY_IS("async")) {
- struct lov_desc *desc = &lov->desc;
+ if (no_set) {
+ set = ptlrpc_prep_set();
+ if (!set)
+ RETURN(-ENOMEM);
+ }
- if (vallen != sizeof(int))
+ if (KEY_IS(KEY_NEXT_ID)) {
+ if (vallen != lov->desc.ld_tgt_count * sizeof(obd_id))
RETURN(-EINVAL);
- lov->async = *((int*) val);
-
- lov_tgts_lock(lov);
- tgt = lov->tgts;
- for (i = 0; i < desc->ld_tgt_count; i++, tgt++) {
- struct obd_uuid *tgt_uuid = &tgt->uuid;
- struct obd_device *tgt_obd;
-
- tgt_obd = class_find_client_obd(tgt_uuid,
- OBD_OSC_DEVICENAME,
- &obddev->obd_uuid);
- if (!tgt_obd) {
- CERROR("Target %s not attached\n",
- tgt_uuid->uuid);
- if (!rc)
- rc = -EINVAL;
- continue;
- }
+ vallen = sizeof(obd_id);
+ incr = sizeof(obd_id);
+ do_inactive = 1;
+ } else if (KEY_IS("checksum")) {
+ do_inactive = 1;
+ } else if (KEY_IS("unlinked")) {
+ check_uuid = val ? 1 : 0;
+ } else if (KEY_IS("evict_by_nid")) {
+ /* use defaults: do_inactive = incr = 0; */
+ }
+
+ lov_getref(obddev);
+
+ for (i = 0; i < lov->desc.ld_tgt_count; i++, val = (char *)val + incr) {
+ /* OST was disconnected */
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
+ continue;
- err = obd_set_info(tgt_obd->obd_self_export,
- keylen, key, vallen, val);
- if (err) {
- CERROR("Failed to set async on target %s\n",
- tgt_obd->obd_name);
- if (!rc)
- rc = err;
- }
- }
- lov_tgts_unlock(lov);
- RETURN(rc);
- }
+ /* OST is inactive and we don't want inactive OSCs */
+ if (!lov->lov_tgts[i]->ltd_active && !do_inactive)
+ continue;
- if (KEY_IS("mds_conn")) {
- if (vallen != sizeof(__u32))
- RETURN(-EINVAL);
- } else if (KEY_IS("unlinked") || KEY_IS("unrecovery")) {
- if (vallen != 0)
- RETURN(-EINVAL);
- } else if (KEY_IS("sec") || KEY_IS("sec_flags")) {
- struct lov_tgt_desc *tgt;
- struct obd_export *exp;
- int rc = 0, err, i;
-
- lov_tgts_lock(lov);
- tgt = lov->tgts;
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
- exp = tgt->ltd_exp;
- /* during setup time the connections to osc might
- * haven't been established.
- */
- if (exp == NULL) {
- struct obd_device *tgt_obd;
-
- tgt_obd = class_find_client_obd(&tgt->uuid,
- OBD_OSC_DEVICENAME,
- &obddev->obd_uuid);
- if (!tgt_obd) {
- CERROR("can't set security flavor, "
- "device %s not attached?\n",
- tgt->uuid.uuid);
- rc = -EINVAL;
- continue;
- }
- exp = tgt_obd->obd_self_export;
- }
+ if (KEY_IS(KEY_MDS_CONN)) {
+ struct mds_group_info *mgi;
- err = obd_set_info(exp, keylen, key, vallen, val);
- if (!rc)
- rc = err;
- }
- lov_tgts_unlock(lov);
+ LASSERT(vallen == sizeof(*mgi));
+ mgi = (struct mds_group_info *)val;
+
+ /* Only want a specific OSC */
+ if (mgi->uuid && !obd_uuid_equals(mgi->uuid,
+ &lov->lov_tgts[i]->ltd_uuid))
+ continue;
- RETURN(rc);
- } else if (KEY_IS("auditlog")) {
- ptl_nid_t nid = 0;
- struct audit_msg * msg = val;
- int i = 0, len = sizeof(nid);
- struct obd_export * ost_exp;
- //try to find client nid
- for (i = 0; i < lov->desc.ld_tgt_count; i++) {
- if (!lov->tgts[i].ltd_exp)
+ err = obd_set_info_async(lov->lov_tgts[i]->ltd_exp,
+ keylen, key, sizeof(int),
+ &mgi->group, set);
+ } else {
+ /* Only want a specific OSC */
+ if (check_uuid &&
+ !obd_uuid_equals(val, &lov->lov_tgts[i]->ltd_uuid))
continue;
- rc = obd_get_info(lov->tgts[i].ltd_exp, 10,
- "client_nid", &len, &nid);
- if (!rc)
- break;
- }
-
- i = (__u32)nid % lov->desc.ld_tgt_count;
- CDEBUG(D_INFO, "Select OST %i for nid %.8x\n",i, (__u32)nid);
-
- ost_exp = lov->tgts[i].ltd_exp;
- if (!ost_exp) {
- CERROR("can't send auditlog data,"
- "device %s is not attached?\n",
- lov->tgts[i].uuid.uuid);
- RETURN(-EFAULT);
+ err = obd_set_info_async(lov->lov_tgts[i]->ltd_exp,
+ keylen, key, vallen, val, set);
}
- msg->nid = nid;
- rc = obd_set_info(ost_exp, keylen, key, vallen, val);
-
- RETURN(rc);
- } else if (KEY_IS("audit_obj")) {
- struct audit_lov_msg * msg = val;
- int i = 0, index;
- struct obd_export * ost_exp;
- struct lov_oinfo *loi;
- struct obdo *oa = NULL;
- oa = obdo_alloc();
- if (oa == NULL)
- RETURN(-ENOMEM);
+ if (!rc)
+ rc = err;
+ }
- //set audit for all objects of file
- CDEBUG(D_INFO, "Set audit 0x%x for objects\n", (__u32)msg->mask);
- //use o_fid to store audit mask
- oa->o_fid = msg->mask;
- oa->o_uid = msg->uid;
- oa->o_gid = msg->gid;
- //iterate over all objects and set audit for each
- for (i = 0, loi = msg->lsm->lsm_oinfo;
- i < msg->lsm->lsm_stripe_count; i++, loi++) {
- index = loi->loi_ost_idx;
- ost_exp = lov->tgts[index].ltd_exp;
- if (!ost_exp) {
- CERROR("can't send audit_obj data,"
- "device %s is not attached?\n",
- lov->tgts[i].uuid.uuid);
- continue;
- }
- oa->o_id = loi->loi_id;
- oa->o_gr = loi->loi_gr;
-
- obd_set_info(ost_exp, keylen, key, sizeof(*oa), oa);
- }
+ lov_putref(obddev);
+ if (no_set) {
+ err = ptlrpc_set_wait(set);
+ if (!rc)
+ rc = err;
+ ptlrpc_set_destroy(set);
+ }
+ RETURN(rc);
+}
+
+static int lov_checkmd(struct obd_export *exp, struct obd_export *md_exp,
+ struct lov_stripe_md *lsm)
+{
+ int rc;
+ ENTRY;
- obdo_free(oa);
+ if (!lsm)
RETURN(0);
- } else if (KEY_IS("audit")) {
- int i = 0;
- struct obd_export * ost_exp;
+ LASSERT(md_exp);
+ LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
+ rc = lsm_op_find(lsm->lsm_magic)->lsm_revalidate(lsm, md_exp->exp_obd);
- //set audit for whole fs on OSS
- for (i = 0; i < lov->desc.ld_tgt_count; i++) {
- ost_exp = lov->tgts[i].ltd_exp;
- if (!ost_exp) {
- CERROR("can't send audit_fs data,"
- "device %s is not attached?\n",
- lov->tgts[i].uuid.uuid);
- continue;
- }
- obd_set_info(ost_exp, keylen, key, vallen, val);
- }
-
- RETURN(rc);
- } else if (KEY_IS("flush_cred") || KEY_IS("crypto_cb") ||
- KEY_IS("capa_key")) {
- struct lov_tgt_desc *tgt;
- int rc = 0, i;
+ RETURN(rc);
+}
- tgt = lov->tgts;
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
- if (!lov_tgt_active(lov, tgt, 0))
- continue;
- rc = obd_set_info(tgt->ltd_exp,
- keylen, key, vallen, val);
- lov_tgt_decref(lov, tgt);
- if (rc)
- RETURN(rc);
- }
+int lov_test_and_clear_async_rc(struct lov_stripe_md *lsm)
+{
+ int i, rc = 0;
+ ENTRY;
- RETURN(0);
- } else if (KEY_IS("setext")) {
- struct lov_tgt_desc *tgt;
- int rc = 0, i;
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ struct lov_oinfo *loi = lsm->lsm_oinfo[i];
+ if (loi->loi_ar.ar_rc && !rc)
+ rc = loi->loi_ar.ar_rc;
+ loi->loi_ar.ar_rc = 0;
+ }
+ RETURN(rc);
+}
+EXPORT_SYMBOL(lov_test_and_clear_async_rc);
- for (i = 0, tgt = lov->tgts; i < lov->desc.ld_tgt_count;
- i++, tgt++) {
- if (!tgt->ltd_exp)
- continue;
- rc = obd_set_info(tgt->ltd_exp,
- keylen, key, vallen, val);
- if (rc)
- RETURN(rc);
- }
- RETURN(0);
+static int lov_extent_calc(struct obd_export *exp, struct lov_stripe_md *lsm,
+ int cmd, __u64 *offset)
+{
+ __u32 ssize = lsm->lsm_stripe_size;
+ __u64 start;
+
+ start = *offset;
+ do_div(start, ssize);
+ start = start * ssize;
+
+ CDEBUG(D_DLMTRACE, "offset "LPU64", stripe %u, start "LPU64
+ ", end "LPU64"\n", *offset, ssize, start,
+ start + ssize - 1);
+ if (cmd == OBD_CALC_STRIPE_END) {
+ *offset = start + ssize - 1;
+ } else if (cmd == OBD_CALC_STRIPE_START) {
+ *offset = start;
} else {
- RETURN(-EINVAL);
+ LBUG();
}
- tgt = lov->tgts;
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
- int active = 0;
-
- if (val) {
- if (!obd_uuid_equals(val, &tgt->uuid))
- continue;
- } else if (!lov_tgt_active(lov, tgt, 0)) {
- continue;
- } else {
- active = 1;
- }
-
- err = obd_set_info(tgt->ltd_exp, keylen, key, vallen, val);
- if (!rc)
- rc = err;
- if (active)
- lov_tgt_decref(lov, tgt);
- }
- RETURN(rc);
-#undef KEY_IS
+ RETURN(0);
}
+
#if 0
struct lov_multi_wait {
struct ldlm_lock *lock;
int rc = 0, i;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
if (!exp || !exp->exp_obd)
RETURN(-ENODEV);
i++, loi++, lov_lockhp++) {
struct ldlm_lock *lock;
struct obd_device *obd;
- unsigned long irqflags;
lock = ldlm_handle2lock(lov_lockhp);
if (lock == NULL) {
if (obd != NULL)
imp = obd->u.cli.cl_import;
if (imp != NULL) {
- spin_lock_irqsave(&imp->imp_lock, irqflags);
+ spin_lock(&imp->imp_lock);
queues[i].generation = imp->imp_generation;
- spin_unlock_irqrestore(&imp->imp_lock, irqflags);
+ spin_unlock(&imp->imp_lock);
}
}
}
#endif
+void lov_stripe_lock(struct lov_stripe_md *md)
+{
+ LASSERT(md->lsm_lock_owner != cfs_current());
+ spin_lock(&md->lsm_lock);
+ LASSERT(md->lsm_lock_owner == NULL);
+ md->lsm_lock_owner = cfs_current();
+}
+EXPORT_SYMBOL(lov_stripe_lock);
+
+void lov_stripe_unlock(struct lov_stripe_md *md)
+{
+ LASSERT(md->lsm_lock_owner == cfs_current());
+ md->lsm_lock_owner = NULL;
+ spin_unlock(&md->lsm_lock);
+}
+EXPORT_SYMBOL(lov_stripe_unlock);
+
struct obd_ops lov_obd_ops = {
.o_owner = THIS_MODULE,
- .o_attach = lov_attach,
- .o_detach = lov_detach,
.o_setup = lov_setup,
+ .o_precleanup = lov_precleanup,
.o_cleanup = lov_cleanup,
.o_process_config = lov_process_config,
.o_connect = lov_connect,
.o_disconnect = lov_disconnect,
.o_statfs = lov_statfs,
+ .o_statfs_async = lov_statfs_async,
.o_packmd = lov_packmd,
.o_unpackmd = lov_unpackmd,
- .o_revalidate_md = lov_revalidate_md,
+ .o_checkmd = lov_checkmd,
.o_create = lov_create,
.o_destroy = lov_destroy,
.o_getattr = lov_getattr,
.o_getattr_async = lov_getattr_async,
.o_setattr = lov_setattr,
+ .o_setattr_async = lov_setattr_async,
.o_brw = lov_brw,
.o_brw_async = lov_brw_async,
.o_prep_async_page = lov_prep_async_page,
.o_queue_group_io = lov_queue_group_io,
.o_trigger_group_io = lov_trigger_group_io,
.o_teardown_async_page = lov_teardown_async_page,
+ .o_merge_lvb = lov_merge_lvb,
.o_adjust_kms = lov_adjust_kms,
.o_punch = lov_punch,
.o_sync = lov_sync,
.o_change_cbdata = lov_change_cbdata,
.o_cancel = lov_cancel,
.o_cancel_unused = lov_cancel_unused,
+ .o_join_lru = lov_join_lru,
.o_iocontrol = lov_iocontrol,
.o_get_info = lov_get_info,
- .o_set_info = lov_set_info,
+ .o_set_info_async = lov_set_info_async,
+ .o_extent_calc = lov_extent_calc,
.o_llog_init = lov_llog_init,
.o_llog_finish = lov_llog_finish,
.o_notify = lov_notify,
};
+static quota_interface_t *quota_interface;
+extern quota_interface_t lov_quota_interface;
+
+cfs_mem_cache_t *lov_oinfo_slab;
+
int __init lov_init(void)
{
struct lprocfs_static_vars lvars;
- int rc;
+ int rc, rc2;
ENTRY;
+ lov_oinfo_slab = cfs_mem_cache_create("lov_oinfo",
+ sizeof(struct lov_oinfo),
+ 0, SLAB_HWCACHE_ALIGN);
+ if (lov_oinfo_slab == NULL)
+ return -ENOMEM;
lprocfs_init_vars(lov, &lvars);
+
+ request_module("lquota");
+ quota_interface = PORTAL_SYMBOL_GET(lov_quota_interface);
+ init_obd_quota_ops(quota_interface, &lov_obd_ops);
+
rc = class_register_type(&lov_obd_ops, NULL, lvars.module_vars,
- OBD_LOV_DEVICENAME);
+ LUSTRE_LOV_NAME, NULL);
+ if (rc) {
+ if (quota_interface)
+ PORTAL_SYMBOL_PUT(lov_quota_interface);
+ rc2 = cfs_mem_cache_destroy(lov_oinfo_slab);
+ LASSERT(rc2 == 0);
+ }
+
RETURN(rc);
}
#ifdef __KERNEL__
static void /*__exit*/ lov_exit(void)
{
- class_unregister_type(OBD_LOV_DEVICENAME);
+ int rc;
+
+ if (quota_interface)
+ PORTAL_SYMBOL_PUT(lov_quota_interface);
+
+ class_unregister_type(LUSTRE_LOV_NAME);
+ rc = cfs_mem_cache_destroy(lov_oinfo_slab);
+ LASSERT(rc == 0);
}
MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
MODULE_DESCRIPTION("Lustre Logical Object Volume OBD driver");
MODULE_LICENSE("GPL");
-module_init(lov_init);
-module_exit(lov_exit);
+cfs_module(lov, LUSTRE_VERSION_STRING, lov_init, lov_exit);
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff