/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
- * Author: Phil Schwan <phil@clusterfs.com>
- * Peter Braam <braam@clusterfs.com>
- * Mike Shaver <shaver@clusterfs.com>
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * This file is part of Lustre, http://www.lustre.org.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
- * 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.
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
- * 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.
+ * lustre/lov/lov_obd.c
+ *
+ * Author: Phil Schwan <phil@clusterfs.com>
+ * Author: Peter Braam <braam@clusterfs.com>
+ * Author: Mike Shaver <shaver@clusterfs.com>
+ * Author: Nathan Rutman <nathan@clusterfs.com>
*/
#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 <cl_object.h>
+#include <lustre/ll_fiemap.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. */
+static void lov_getref(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+
+ /* nobody gets through here until lov_putref is done */
+ cfs_mutex_down(&lov->lov_lock);
+ cfs_atomic_inc(&lov->lov_refcount);
+ cfs_mutex_up(&lov->lov_lock);
+ return;
+}
+
+static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt);
+
+static void lov_putref(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+
+ cfs_mutex_down(&lov->lov_lock);
+ /* ok to dec to 0 more than once -- ltd_exp's will be null */
+ if (cfs_atomic_dec_and_test(&lov->lov_refcount) && lov->lov_death_row) {
+ CFS_LIST_HEAD(kill);
+ int i;
+ struct lov_tgt_desc *tgt, *n;
+ CDEBUG(D_CONFIG, "destroying %d lov targets\n",
+ lov->lov_death_row);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ tgt = lov->lov_tgts[i];
+
+ if (!tgt || !tgt->ltd_reap)
+ continue;
+ cfs_list_add(&tgt->ltd_kill, &kill);
+ /* 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_ost_pool_remove(&lov->lov_packed, i);
+ lov->lov_tgts[i] = NULL;
+ lov->lov_death_row--;
+ }
+ cfs_mutex_up(&lov->lov_lock);
+
+ cfs_list_for_each_entry_safe(tgt, n, &kill, ltd_kill) {
+ cfs_list_del(&tgt->ltd_kill);
+ /* Disconnect */
+ __lov_del_obd(obd, tgt);
+ }
+ } else {
+ cfs_mutex_up(&lov->lov_lock);
+ }
+}
+
+static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
+ int activate);
+static int lov_notify(struct obd_device *obd, struct obd_device *watched,
+ enum obd_notify_event ev, void *data);
+
+
#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)
+int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
+ struct obd_connect_data *data)
{
- struct obd_uuid lov_osc_uuid = { "LOV_OSC_UUID" };
- struct obd_uuid *tgt_uuid = &tgt->uuid;
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_uuid tgt_uuid;
+ struct obd_device *tgt_obd;
+ static struct obd_uuid lov_osc_uuid = { "LOV_OSC_UUID" };
+ 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,
- &obd->obd_uuid);
-
- if (!tgt_obd) {
- CERROR("Target %s not attached\n", tgt_uuid->uuid);
+ if (!lov->lov_tgts[index])
RETURN(-EINVAL);
- }
+
+ tgt_uuid = lov->lov_tgts[index]->ltd_uuid;
+ tgt_obd = lov->lov_tgts[index]->ltd_obd;
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);
}
+ /* override the sp_me from lov */
+ tgt_obd->u.cli.cl_sp_me = lov->lov_sp_me;
+
+ 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);
+ }
+
+ rc = obd_register_observer(tgt_obd, obd);
+ if (rc) {
+ CERROR("Target %s register_observer error %d\n",
+ obd_uuid2str(&tgt_uuid), rc);
+ RETURN(rc);
}
- if (tgt_obd->u.cli.cl_import->imp_invalid) {
+
+ if (imp->imp_invalid) {
CERROR("not connecting OSC %s; administratively "
- "disabled\n", tgt_uuid->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);
- }
+ "disabled\n", obd_uuid2str(&tgt_uuid));
RETURN(0);
}
- rc = obd_connect(&conn, tgt_obd, &lov_osc_uuid, conn_data,
- connect_flags);
- if (rc) {
- CERROR("Target %s connect error %d\n", tgt_uuid->uuid, rc);
- RETURN(rc);
+ rc = obd_connect(NULL, &lov->lov_tgts[index]->ltd_exp, tgt_obd,
+ &lov_osc_uuid, data, NULL);
+ if (rc || !lov->lov_tgts[index]->ltd_exp) {
+ CERROR("Target %s connect error %d\n",
+ obd_uuid2str(&tgt_uuid), rc);
+ RETURN(-ENODEV);
}
- tgt->ltd_exp = class_conn2export(&conn);
- 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;
- RETURN(rc);
- }
+ lov->lov_tgts[index]->ltd_reap = 0;
- lov_tgt_set_flags(lov, tgt, LTD_ACTIVE);
+ 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];
+ struct obd_device *osc_obd = lov->lov_tgts[index]->ltd_exp->exp_obd;
+ 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);
- osc_symlink = proc_symlink(osc_obd->obd_name, lov_proc_dir,
- name);
+ osc_symlink = lprocfs_add_symlink(osc_obd->obd_name, lov_proc_dir,
+ 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,
+static int lov_connect(const struct lu_env *env,
+ struct obd_export **exp, struct obd_device *obd,
struct obd_uuid *cluuid, struct obd_connect_data *data,
- unsigned long flags)
+ void *localdata)
{
-#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;
+ struct lustre_handle conn;
+ int i, rc;
ENTRY;
- rc = class_connect(conn, obd, cluuid);
+ CDEBUG(D_CONFIG, "connect #%d\n", lov->lov_connects);
+
+ rc = class_connect(&conn, obd, cluuid);
if (rc)
RETURN(rc);
- exp = class_conn2export(conn);
+ *exp = class_conn2export(&conn);
- /* 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);
- }
+ /* Why should there ever be more than 1 connect? */
+ lov->lov_connects++;
+ LASSERT(lov->lov_connects == 1);
-#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))
+ obd_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;
+ /* 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;
+ }
+ /* connect to administrative disabled ost */
+ if (!lov->lov_tgts[i]->ltd_exp)
continue;
- rc = lov_connect_obd(obd, tgt, 0, data, flags);
- if (rc)
- GOTO(out_disc, rc);
- }
-
- 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);
+ rc = lov_notify(obd, lov->lov_tgts[i]->ltd_exp->exp_obd,
+ OBD_NOTIFY_CONNECT, (void *)&i);
+ if (rc) {
+ CERROR("%s error sending notify %d\n",
+ obd->obd_name, rc);
+ }
}
- class_disconnect(exp, 0);
- RETURN (rc);
+ obd_putref(obd);
+
+ 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, struct lov_tgt_desc *tgt)
{
-#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;
int rc;
ENTRY;
-#ifdef __KERNEL__
+ osc_obd = class_exp2obd(tgt->ltd_exp);
+ CDEBUG(D_CONFIG, "%s: disconnecting target %s\n",
+ obd->obd_name, osc_obd->obd_name);
+
+ if (tgt->ltd_active) {
+ tgt->ltd_active = 0;
+ lov->desc.ld_active_tgt_count--;
+ tgt->ltd_exp->exp_obd->obd_inactive = 1;
+ }
+
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(tgt->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",
+ tgt->ltd_uuid.uuid, 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, tgt);
- lov_tgt_clear_flags(lov, tgt, LTD_ACTIVE);
tgt->ltd_exp = NULL;
RETURN(0);
}
-static int lov_disconnect(struct obd_export *exp, unsigned long flags)
+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;
}
-#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);
+ /* Let's hold another reference so lov_del_obd doesn't spin through
+ putref every time */
+ obd_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);
+ }
}
-#endif
-
- out_local:
- rc = class_disconnect(exp, 0);
+ obd_putref(obd);
+
+out:
+ rc = class_disconnect(exp); /* bz 9811 */
RETURN(rc);
}
* -EINVAL : UUID can't be found in the LOV's target list
* -ENOTCONN: The UUID is found, but the target connection is bad (!)
* -EBADF : The UUID is found, but the OBD is the wrong type (!)
+ * any >= 0 : is log target index
*/
-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;
+ int index;
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)
+ obd_getref(obd);
+ for (index = 0; index < lov->desc.ld_tgt_count; index++) {
+ tgt = lov->lov_tgts[index];
+ 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))
+ index, 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 (index == lov->desc.ld_tgt_count)
+ GOTO(out, index = -EINVAL);
+
+ if (lov->lov_tgts[index]->ltd_active == activate) {
+ CDEBUG(D_INFO, "OSC %s already %sactive!\n", uuid->uuid,
+ activate ? "" : "in");
+ GOTO(out, index);
+ }
+
+ CDEBUG(D_CONFIG, "Marking OSC %s %sactive\n", obd_uuid2str(uuid),
+ activate ? "" : "in");
+
+ lov->lov_tgts[index]->ltd_active = activate;
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;
lov->desc.ld_active_tgt_count++;
+ lov->lov_tgts[index]->ltd_exp->exp_obd->obd_inactive = 0;
} 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;
lov->desc.ld_active_tgt_count--;
+ lov->lov_tgts[index]->ltd_exp->exp_obd->obd_inactive = 1;
}
-
- EXIT;
+ /* remove any old qos penalty */
+ lov->lov_tgts[index]->ltd_qos.ltq_penalty = 0;
+
out:
- lov_tgts_unlock(lov);
- return rc;
+ obd_putref(obd);
+ RETURN(index);
}
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;
+ if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE) {
+ struct obd_uuid *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 (obd->obd_observer)
- /* Pass the notification up the chain. */
- rc = obd_notify(obd->obd_observer, watched, active, data);
-
- RETURN(rc);
-}
+ LASSERT(watched);
-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 < 0) {
+ CERROR("%sactivation of %s failed: %d\n",
+ (ev == OBD_NOTIFY_ACTIVE) ? "" : "de",
+ obd_uuid2str(uuid), rc);
+ RETURN(rc);
+ }
+ /* active event should be pass lov target index as data */
+ data = &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) */
+ /* sync event should be send lov idx as data */
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_device *tgt_obd;
+ int i;
+ obd_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ /* don't send sync event if target not
+ * connected/activated */
+ if (!lov->lov_tgts[i] ||
+ !lov->lov_tgts[i]->ltd_active)
+ continue;
+
+ if ((ev == OBD_NOTIFY_SYNC) ||
+ (ev == OBD_NOTIFY_SYNC_NONBLOCK))
+ data = &i;
+
+ 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
+ obd_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)
+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;
+ struct obd_device *tgt_obd;
+ 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);
+ if (gen <= 0) {
+ CERROR("request to add OBD %s with invalid generation: %d\n",
+ uuidp->uuid, gen);
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);
+ tgt_obd = class_find_client_obd(uuidp, LUSTRE_OSC_NAME,
+ &obd->obd_uuid);
+ if (tgt_obd == NULL)
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);
+ cfs_mutex_down(&lov->lov_lock);
- RETURN(0);
-}
+ 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);
+ cfs_mutex_up(&lov->lov_lock);
+ RETURN(-EEXIST);
+ }
-static int lov_cleanup(struct obd_device *obd, int flags)
-{
- struct lov_obd *lov = &obd->u.lov;
+ 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;
- OBD_FREE(lov->tgts, lov->bufsize);
- RETURN(0);
-}
+ newsize = max(lov->lov_tgt_size, (__u32)2);
+ while (newsize < index + 1)
+ newsize = newsize << 1;
+ OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
+ if (newtgts == NULL) {
+ cfs_mutex_up(&lov->lov_lock);
+ RETURN(-ENOMEM);
+ }
-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;
+ 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;
+ }
- CDEBUG(D_CONFIG, "uuid: %s idx: %d gen: %d\n",
- uuidp->uuid, index, gen);
+ lov->lov_tgts = newtgts;
+ lov->lov_tgt_size = newsize;
+#ifdef __KERNEL__
+ smp_rmb();
+#endif
+ if (old)
+ OBD_FREE(old, sizeof(*old) * oldsize);
- if ((index < 0) || (index >= LOV_MAX_TGT_COUNT)) {
- CERROR("request to add OBD %s at invalid index: %d\n",
- uuidp->uuid, index);
- RETURN(-EINVAL);
+ CDEBUG(D_CONFIG, "tgts: %p size: %d\n",
+ lov->lov_tgts, lov->lov_tgt_size);
}
- if (gen <= 0) {
- CERROR("request to add OBD %s with invalid generation: %d\n",
- uuidp->uuid, gen);
- RETURN(-EINVAL);
+ OBD_ALLOC_PTR(tgt);
+ if (!tgt) {
+ cfs_mutex_up(&lov->lov_lock);
+ RETURN(-ENOMEM);
}
- 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);
+ rc = lov_ost_pool_add(&lov->lov_packed, index, lov->lov_tgt_size);
+ if (rc) {
+ cfs_mutex_up(&lov->lov_lock);
+ OBD_FREE_PTR(tgt);
+ RETURN(rc);
}
- tgt->uuid = *uuidp;
+ memset(tgt, 0, sizeof(*tgt));
+ tgt->ltd_uuid = *uuidp;
+ tgt->ltd_obd = tgt_obd;
/* 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;
- lov_tgts_unlock(lov);
+ cfs_mutex_up(&lov->lov_lock);
- 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);
+ obd_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);
- }
+ /* connect to administrative disabled ost */
+ if (!tgt->ltd_exp)
+ GOTO(out, rc = 0);
- GOTO(out, rc);
- out:
- if (rc && tgt->ltd_exp != NULL)
- lov_disconnect_obd(obd, tgt, 0);
- return rc;
+ rc = lov_notify(obd, tgt->ltd_exp->exp_obd,
+ active ? OBD_NOTIFY_CONNECT : OBD_NOTIFY_INACTIVE,
+ (void *)&index);
+
+out:
+ if (rc) {
+ CERROR("add failed (%d), deleting %s\n", rc,
+ obd_uuid2str(&tgt->ltd_uuid));
+ lov_del_target(obd, index, 0, 0);
+ }
+ obd_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 */
+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;
+ obd_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);
- RETURN(-EINVAL);
+ lov_uuid2str(lov, index), index,
+ obd_uuid2str(uuidp));
+ GOTO(out, rc = -EINVAL);
}
- lov_tgt_set_flags(lov, tgt, LTD_DEL_PENDING);
+ 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);
- if (tgt->ltd_exp) {
- struct obd_device *osc_obd;
+ lov->lov_tgts[index]->ltd_reap = 1;
+ lov->lov_death_row++;
+ /* we really delete it from obd_putref */
+out:
+ obd_putref(obd);
- 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);
- }
+ RETURN(rc);
+}
- lov_disconnect_obd(obd, tgt, 0);
- }
+static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
+{
+ struct obd_device *osc_obd;
- 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);
+ LASSERT(tgt);
+ LASSERT(tgt->ltd_reap);
- /* 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);
- }
+ osc_obd = class_exp2obd(tgt->ltd_exp);
- 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);
+ CDEBUG(D_CONFIG, "Removing tgt %s : %s\n",
+ tgt->ltd_uuid.uuid,
+ osc_obd ? osc_obd->obd_name : "<no obd>");
- /* 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. */
+ if (tgt->ltd_exp)
+ lov_disconnect_obd(obd, tgt);
- /* lt_gen = 0 will mean it will not match the gen of any valid loi */
- memset(tgt, 0, sizeof(*tgt));
- RETURN(rc);
+ 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);
}
-static int lov_process_config(struct obd_device *obd, obd_count len, void *buf)
+void lov_fix_desc_stripe_size(__u64 *val)
{
- struct lustre_cfg *lcfg = buf;
- struct obd_uuid obd_uuid;
- int cmd;
- int index;
- int gen;
- int rc = 0;
- ENTRY;
+ if (*val < PTLRPC_MAX_BRW_SIZE) {
+ LCONSOLE_WARN("Increasing default stripe size to min %u\n",
+ PTLRPC_MAX_BRW_SIZE);
+ *val = PTLRPC_MAX_BRW_SIZE;
+ } else if (*val & (LOV_MIN_STRIPE_SIZE - 1)) {
+ *val &= ~(LOV_MIN_STRIPE_SIZE - 1);
+ LCONSOLE_WARN("Changing default stripe size to "LPU64" (a "
+ "multiple of %u)\n",
+ *val, LOV_MIN_STRIPE_SIZE);
+ }
+}
- switch(cmd = lcfg->lcfg_command) {
- case LCFG_LOV_ADD_OBD:
- case LCFG_LOV_DEL_OBD: {
- if (LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(obd_uuid.uuid))
- GOTO(out, rc = -EINVAL);
+void lov_fix_desc_stripe_count(__u32 *val)
+{
+ if (*val == 0)
+ *val = 1;
+}
- obd_str2uuid(&obd_uuid, lustre_cfg_string(lcfg, 1));
+void lov_fix_desc_pattern(__u32 *val)
+{
+ /* from lov_setstripe */
+ if ((*val != 0) && (*val != LOV_PATTERN_RAID0)) {
+ LCONSOLE_WARN("Unknown stripe pattern: %#x\n", *val);
+ *val = 0;
+ }
+}
- if (sscanf(lustre_cfg_buf(lcfg, 2), "%d", &index) != 1)
+void lov_fix_desc_qos_maxage(__u32 *val)
+{
+ /* fix qos_maxage */
+ if (*val == 0)
+ *val = QOS_DEFAULT_MAXAGE;
+}
+
+void lov_fix_desc(struct lov_desc *desc)
+{
+ lov_fix_desc_stripe_size(&desc->ld_default_stripe_size);
+ lov_fix_desc_stripe_count(&desc->ld_default_stripe_count);
+ lov_fix_desc_pattern(&desc->ld_pattern);
+ lov_fix_desc_qos_maxage(&desc->ld_qos_maxage);
+}
+
+int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
+{
+ struct lprocfs_static_vars lvars = { 0 };
+ struct lov_desc *desc;
+ struct lov_obd *lov = &obd->u.lov;
+ int rc;
+ ENTRY;
+
+ if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
+ CERROR("LOV setup requires a descriptor\n");
+ RETURN(-EINVAL);
+ }
+
+ desc = (struct lov_desc *)lustre_cfg_buf(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);
+ }
+
+ 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);
+
+ desc->ld_active_tgt_count = 0;
+ lov->desc = *desc;
+ lov->lov_tgt_size = 0;
+
+ cfs_sema_init(&lov->lov_lock, 1);
+ cfs_atomic_set(&lov->lov_refcount, 0);
+ CFS_INIT_LIST_HEAD(&lov->lov_qos.lq_oss_list);
+ cfs_init_rwsem(&lov->lov_qos.lq_rw_sem);
+ lov->lov_sp_me = LUSTRE_SP_CLI;
+ lov->lov_qos.lq_dirty = 1;
+ lov->lov_qos.lq_rr.lqr_dirty = 1;
+ lov->lov_qos.lq_reset = 1;
+ /* Default priority is toward free space balance */
+ lov->lov_qos.lq_prio_free = 232;
+ /* Default threshold for rr (roughly 17%) */
+ lov->lov_qos.lq_threshold_rr = 43;
+ /* Init statfs fields */
+ OBD_ALLOC_PTR(lov->lov_qos.lq_statfs_data);
+ if (NULL == lov->lov_qos.lq_statfs_data)
+ RETURN(-ENOMEM);
+ cfs_waitq_init(&lov->lov_qos.lq_statfs_waitq);
+
+ lov->lov_pools_hash_body = cfs_hash_create("POOLS", HASH_POOLS_CUR_BITS,
+ HASH_POOLS_MAX_BITS,
+ &pool_hash_operations, CFS_HASH_REHASH);
+ CFS_INIT_LIST_HEAD(&lov->lov_pool_list);
+ lov->lov_pool_count = 0;
+ rc = lov_ost_pool_init(&lov->lov_packed, 0);
+ if (rc)
+ RETURN(rc);
+ rc = lov_ost_pool_init(&lov->lov_qos.lq_rr.lqr_pool, 0);
+ if (rc) {
+ lov_ost_pool_free(&lov->lov_packed);
+ RETURN(rc);
+ }
+
+ lprocfs_lov_init_vars(&lvars);
+ lprocfs_obd_setup(obd, lvars.obd_vars);
+#ifdef LPROCFS
+ {
+ int rc;
+
+ rc = lprocfs_seq_create(obd->obd_proc_entry, "target_obd",
+ 0444, &lov_proc_target_fops, obd);
+ if (rc)
+ CWARN("Error adding the target_obd file\n");
+ }
+#endif
+ lov->lov_pool_proc_entry = lprocfs_register("pools",
+ obd->obd_proc_entry,
+ NULL, NULL);
+
+ RETURN(0);
+}
+
+static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
+{
+ int rc = 0;
+ struct lov_obd *lov = &obd->u.lov;
+
+ ENTRY;
+
+ switch (stage) {
+ case OBD_CLEANUP_EARLY: {
+ 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:
+ rc = obd_llog_finish(obd, 0);
+ if (rc != 0)
+ CERROR("failed to cleanup llogging subsystems\n");
+ break;
+ }
+ RETURN(rc);
+}
+
+static int lov_cleanup(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+ cfs_list_t *pos, *tmp;
+ struct pool_desc *pool;
+
+ cfs_list_for_each_safe(pos, tmp, &lov->lov_pool_list) {
+ pool = cfs_list_entry(pos, struct pool_desc, pool_list);
+ /* free pool structs */
+ CDEBUG(D_INFO, "delete pool %p\n", pool);
+ lov_pool_del(obd, pool->pool_name);
+ }
+ cfs_hash_destroy(lov->lov_pools_hash_body);
+ lov_ost_pool_free(&(lov->lov_qos.lq_rr.lqr_pool));
+ lov_ost_pool_free(&lov->lov_packed);
+
+ if (lov->lov_tgts) {
+ int i;
+ obd_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i])
+ continue;
+
+ /* Inactive targets may never have connected */
+ if (lov->lov_tgts[i]->ltd_active ||
+ cfs_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,
+ cfs_atomic_read(&lov->lov_refcount));
+ lov_del_target(obd, i, 0, 0);
+ }
+ obd_putref(obd);
+ OBD_FREE(lov->lov_tgts, sizeof(*lov->lov_tgts) *
+ lov->lov_tgt_size);
+ lov->lov_tgt_size = 0;
+ }
+
+ /* clear pools parent proc entry only after all pools is killed */
+ lprocfs_obd_cleanup(obd);
+
+ OBD_FREE_PTR(lov->lov_qos.lq_statfs_data);
+ RETURN(0);
+}
+
+int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg,
+ __u32 *indexp, int *genp)
+{
+ struct obd_uuid obd_uuid;
+ int cmd;
+ 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_buf(lcfg, 1));
+
+ if (sscanf(lustre_cfg_buf(lcfg, 2), "%d", indexp) != 1)
GOTO(out, rc = -EINVAL);
- if (sscanf(lustre_cfg_buf(lcfg, 3), "%d", &gen) != 1)
+ if (sscanf(lustre_cfg_buf(lcfg, 3), "%d", genp) != 1)
GOTO(out, rc = -EINVAL);
+ index = *indexp;
+ gen = *genp;
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 = { 0 };
+ struct lov_desc *desc = &(obd->u.lov.desc);
+
+ if (!desc)
+ GOTO(out, rc = -EINVAL);
+
+ lprocfs_lov_init_vars(&lvars);
+
+ rc = class_process_proc_param(PARAM_LOV, lvars.obd_vars,
+ lcfg, obd);
+ if (rc > 0)
+ rc = 0;
GOTO(out, rc);
}
+ case LCFG_POOL_NEW:
+ case LCFG_POOL_ADD:
+ case LCFG_POOL_DEL:
+ case LCFG_POOL_REM:
+ GOTO(out, rc);
+
default: {
CERROR("Unknown command: %d\n", lcfg->lcfg_command);
GOTO(out, rc = -EINVAL);
}
#ifndef log2
-#define log2(n) ffz(~(n))
+#define log2(n) cfs_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);
- if (src_oa->o_valid & OBD_MD_FLINLINE) {
- ost_uuid = (struct obd_uuid *)src_oa->o_inline;
+ if (oti->oti_ost_uuid) {
+ ost_uuid = oti->oti_ost_uuid;
CDEBUG(D_HA, "clearing orphans only for %s\n",
ost_uuid->uuid);
}
- for (i = 0, tgt = lov->tgts; i < lov->desc.ld_tgt_count; i++, tgt++) {
+ obd_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 && 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);
- if (err)
+ 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);
+ rc = err;
+ }
if (ost_uuid)
break;
}
+ obd_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 l_wait_info lwi = { 0 };
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);
+
+ obd_getref(exp->exp_obd);
+ /* 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);
+ GOTO(out, rc);
+ }
- list_for_each (pos, &set->set_list) {
- struct lov_request *req =
- list_entry(pos, struct lov_request, rq_link);
+ /* issue statfs rpcs if the osfs data is older than qos_maxage - 1s,
+ * later in alloc_qos(), we will wait for those rpcs to complete if
+ * the osfs age is older than 2 * qos_maxage */
+ qos_statfs_update(exp->exp_obd,
+ cfs_time_shift_64(-lov->desc.ld_qos_maxage) + CFS_HZ,
+ 0);
+ rc = lov_prep_create_set(exp, &oinfo, ea, src_oa, oti, &set);
+ if (rc)
+ GOTO(out, rc);
+
+ cfs_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);
- lov_update_create_set(set, req, rc);
+ rc = obd_create_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi, &req->rq_oi.oi_md, oti);
}
+
+ /* osc_create have timeout equ obd_timeout/2 so waiting don't be
+ * longer then this */
+ l_wait_event(set->set_waitq, lov_finished_set(set), &lwi);
+
+ /* we not have ptlrpc set for assign set->interpret and should
+ * be call interpret function himself. calling from cb_create_update
+ * not permited because lov_fini_create_set can sleep for long time,
+ * but we must avoid sleeping in ptlrpcd interpret function. */
rc = lov_fini_create_set(set, ea);
+out:
+ obd_putref(exp->exp_obd);
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_V1 || \
+ (lsmp)->lsm_magic == LOV_MAGIC_V3), \
+ "%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, void *capa)
{
struct lov_request_set *set;
+ struct obd_info oinfo;
struct lov_request *req;
- struct list_head *pos;
+ cfs_list_t *pos;
struct lov_obd *lov;
- int rc = 0;
+ int rc = 0, err = 0;
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);
+ obd_getref(exp->exp_obd);
+ rc = lov_prep_destroy_set(exp, &oinfo, oa, lsm, oti, &set);
if (rc)
- RETURN(rc);
+ GOTO(out, rc);
- list_for_each (pos, &set->set_list) {
- int err;
- req = list_entry(pos, struct lov_request, rq_link);
+ cfs_list_for_each (pos, &set->set_list) {
+ req = cfs_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, capa);
+ 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);
+out:
+ obd_putref(exp->exp_obd);
+ 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;
- struct list_head *pos;
+ cfs_list_t *pos;
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);
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);
-
+ cfs_list_for_each (pos, &set->set_list) {
+ req = cfs_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;
+ cfs_list_t *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);
+
+ cfs_list_for_each (pos, &lovset->set_list) {
+ req = cfs_list_entry(pos, struct lov_request, rq_link);
- 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 (!cfs_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;
- struct list_head *pos;
+ cfs_list_t *pos;
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);
- 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_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);
+ cfs_list_for_each (pos, &set->set_list) {
+ req = cfs_list_entry(pos, struct lov_request, rq_link);
+
+ 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;
+ cfs_list_t *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;
+ cfs_list_for_each (pos, &set->set_list) {
+ req = cfs_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;
}
+ }
+
+ /* If we are not waiting for responses on async requests, return. */
+ if (rc || !rqset || cfs_list_empty(&rqset->set_requests)) {
+ int err;
+ if (rc)
+ set->set_completes = 0;
+ err = lov_fini_setattr_set(set);
+ RETURN(rc ? rc : err);
+ }
- 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 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. */
-
- obdo_free(tmp_oa);
- RETURN(updates);
+ LASSERT(rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_setattr_interpret;
+ rqset->set_arg = (void *)set;
+
+ 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;
+ cfs_list_t *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);
+ cfs_list_for_each (pos, &set->set_list) {
+ req = cfs_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 || cfs_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;
+ cfs_list_t *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);
+ cfs_list_for_each (pos, &set->set_list) {
+ req = cfs_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 - 1,
&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;
- struct list_head *pos;
+ cfs_list_t *pos;
struct lov_obd *lov = &exp->exp_obd->u.lov;
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);
- list_for_each (pos, &set->set_list) {
+ cfs_list_for_each (pos, &set->set_list) {
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;
+ req = cfs_list_entry(pos, struct lov_request, rq_link);
+
+ 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);
RETURN(rc);
}
-static int lov_brw_interpret(struct ptlrpc_request_set *reqset, void *data,
- int rc)
+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;
-
- 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)
-{
- struct lov_request_set *lovset;
- struct lov_request *req;
- struct list_head *pos;
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- int rc = 0;
- ENTRY;
-
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
-
- if (cmd == OBD_BRW_CHECK) {
- rc = lov_brw_check(lov, oa, lsm, oa_bufs, pga);
- RETURN(rc);
- }
-
- rc = lov_prep_brw_set(exp, oa, lsm, oa_bufs, pga, oti, &lovset);
- if (rc)
- RETURN(rc);
-
- list_for_each (pos, &lovset->set_list) {
- 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_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);
- if (rc)
- GOTO(out, rc);
- lov_update_common_set(lovset, req, rc);
- }
- LASSERT(rc == 0);
- 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(rc);
-}
-
-static int lov_ap_make_ready(void *data, int cmd)
-{
- struct lov_async_page *lap = LAP_FROM_COOKIE(data);
-
- 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;
-}
-
-static void 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);
-}
-
-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_completion = lov_ap_completion,
-};
-
-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)
-{
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_tgt_desc *tgt;
- struct lov_async_page *lap;
- int rc, stripe;
- ENTRY;
-
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
- 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->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();
- }
-
- /* so the callback doesn't need the lsm */
- lap->lap_loi_id = loi->loi_id;
-
- 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));
- 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);
-}
-
-static int lov_queue_async_io(struct obd_export *exp,
- 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)
-{
- 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);
-
- 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);
-
- lov_tgt_decref(lov, tgt);
- 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)
-{
- 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);
-
- 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);
-
- lov_tgt_decref(lov, tgt);
- RETURN(rc);
-}
-
-static int lov_queue_group_io(struct obd_export *exp,
- struct lov_stripe_md *lsm,
- 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)
-{
- 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);
-
- 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_group_io(tgt->ltd_exp, lsm, loi, oig,
- lap->lap_sub_cookie, cmd, off, count,
- brw_flags, async_flags);
-
- lov_tgt_decref(lov, tgt);
- RETURN(rc);
-}
-
-/* this isn't exactly optimal. we may have queued sync io in oscs on
- * all stripes, but we don't record that fact at queue time. so we
- * trigger sync io on all stripes. */
-static int lov_trigger_group_io(struct obd_export *exp,
- struct lov_stripe_md *lsm,
- struct lov_oinfo *loi,
- struct obd_io_group *oig)
-{
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- int rc = 0, i, err;
-
- 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;
-
- if (!lov_tgt_ready(lov, tgt, loi->loi_ost_gen)) {
- 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);
-
- if (rc == 0 && err != 0)
- rc = err;
- };
- RETURN(rc);
-}
-
-static int lov_teardown_async_page(struct obd_export *exp,
- struct lov_stripe_md *lsm,
- 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);
-
- 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);
-
- if (rc) {
- CERROR("unable to teardown sub cookie %p: %d\n",
- lap->lap_sub_cookie, rc);
- RETURN(rc);
- }
- OBD_FREE(lap, sizeof(*lap));
+ rc = lov_fini_enqueue_set(lovset, lovset->set_ei->ei_mode, rc, rqset);
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(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;
+ cfs_list_t *pos;
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;
+ cfs_list_for_each (pos, &set->set_list) {
+ req = cfs_list_entry(pos, struct lov_request, rq_link);
- 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);
- RETURN(rc);
-}
-
-static int lov_match(struct obd_export *exp, struct lov_stripe_md *lsm,
- __u32 type, ldlm_policy_data_t *policy, __u32 mode,
- int *flags, void *data, struct lustre_handle *lockh)
-{
- struct lov_request_set *set;
- struct lov_request *req;
- struct list_head *pos;
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lustre_handle *lov_lockhp;
- int lov_flags, rc = 0;
- ENTRY;
-
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
-
- if (!exp || !exp->exp_obd)
- RETURN(-ENODEV);
-
- lov = &exp->exp_obd->u.lov;
- rc = lov_prep_match_set(exp, lsm, policy, mode, lockh, &set);
- if (rc)
+ if (rqset && !cfs_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);
-
- 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);
-
- sub_policy.l_extent = req->rq_extent;
- lov_flags = *flags;
-
- rc = obd_match(lov->tgts[req->rq_idx].ltd_exp, req->rq_md,
- type, &sub_policy, mode, &lov_flags, data,
- lov_lockhp);
- rc = lov_update_match_set(set, req, rc);
- if (rc != 1)
- break;
}
- lov_fini_match_set(set, mode, *flags);
+out:
+ rc = lov_fini_enqueue_set(set, mode, rc, rqset);
RETURN(rc);
}
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);
+ LASSERT_MDS_GROUP(lsm->lsm_object_gr);
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;
+ cfs_list_t *pos;
+ struct lov_obd *lov;
struct lustre_handle *lov_lockhp;
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_MDS_GROUP(lsm->lsm_object_gr);
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);
- list_for_each (pos, &set->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
+ cfs_list_for_each (pos, &set->set_list) {
+ req = cfs_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);
-
- LASSERT(lsm->lsm_object_gr > 0);
+ ASSERT_LSM_MAGIC(lsm);
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
+ LASSERT_MDS_GROUP(lsm->lsm_object_gr);
+ 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;
-
- 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);
+ 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;
}
-
- if (!rc)
- rc = err;
}
RETURN(rc);
}
-#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(struct obd_device *obd, struct obd_statfs *osfs,
- unsigned long max_age)
+int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc)
{
- 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 i;
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ int err;
ENTRY;
+ if (rc)
+ lovset->set_completes = 0;
- /* We only get block data from the OBD */
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
- int err;
+ err = lov_fini_statfs_set(lovset);
+ RETURN(rc ? rc : err);
+}
- if (!lov_tgt_active(lov, tgt, 0)) {
- CDEBUG(D_HA, "lov idx %d inactive\n", i);
- continue;
- }
+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;
+ cfs_list_t *pos;
+ struct lov_obd *lov;
+ int rc = 0;
+ ENTRY;
- err = obd_statfs(class_exp2obd(tgt->ltd_exp), &lov_sfs,max_age);
- lov_tgt_decref(lov, tgt);
- if (err) {
- if (lov_tgt_active(lov, tgt, 0)) {
- lov_tgt_decref(lov, tgt);
- if (!rc)
- rc = err;
- }
- continue;
- }
+ LASSERT(oinfo != NULL);
+ LASSERT(oinfo->oi_osfs != NULL);
- 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 = &obd->u.lov;
+ rc = lov_prep_statfs_set(obd, oinfo, &set);
+ if (rc)
+ RETURN(rc);
+
+ cfs_list_for_each (pos, &set->set_list) {
+ struct obd_device *osc_obd;
+
+ req = cfs_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 (set) {
- __u32 expected_stripes = lov->desc.ld_default_stripe_count ?
- lov->desc.ld_default_stripe_count :
- lov->desc.ld_active_tgt_count;
+ if (rc || cfs_list_empty(&rqset->set_requests)) {
+ int err;
+ if (rc)
+ set->set_completes = 0;
+ err = lov_fini_statfs_set(set);
+ RETURN(rc ? rc : err);
+ }
- 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;
- }
+ 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,
+ __u64 max_age, __u32 flags)
+{
+ struct ptlrpc_request_set *set = NULL;
+ struct obd_info oinfo = { { { 0 } } };
+ int rc = 0;
+ ENTRY;
- 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;
+
+ /* for obdclass we forbid using obd_statfs_rqset, but prefer using async
+ * statfs requests */
+ set = ptlrpc_prep_set();
+ if (set == NULL)
+ RETURN(-ENOMEM);
+
+ oinfo.oi_osfs = osfs;
+ oinfo.oi_flags = flags;
+ rc = lov_statfs_async(obd, &oinfo, max_age, set);
+ if (rc == 0)
+ rc = ptlrpc_set_wait(set);
+ ptlrpc_set_destroy(set);
RETURN(rc);
}
{
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;
+ int i = 0, rc = 0, count = lov->desc.ld_tgt_count;
struct obd_uuid *uuidp;
ENTRY;
switch (cmd) {
- case OBD_IOC_LOV_GET_CONFIG: {
+ case IOC_OBD_STATFS: {
struct obd_ioctl_data *data = karg;
+ struct obd_device *osc_obd;
+ struct obd_statfs stat_buf = {0};
+ __u32 index;
+
+ memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
+ LASSERT(data->ioc_plen1 == sizeof(struct obd_statfs));
+
+ if ((index >= count))
+ RETURN(-ENODEV);
+
+ if (!lov->lov_tgts[index])
+ /* Try again with the next index */
+ RETURN(-EAGAIN);
+ if (!lov->lov_tgts[index]->ltd_active)
+ RETURN(-ENODATA);
+
+ osc_obd = class_exp2obd(lov->lov_tgts[index]->ltd_exp);
+ if (!osc_obd)
+ RETURN(-EINVAL);
+
+ /* got statfs data */
+ rc = obd_statfs(osc_obd, &stat_buf,
+ cfs_time_current_64() - CFS_HZ, 0);
+ if (rc)
+ RETURN(rc);
+ if (cfs_copy_to_user(data->ioc_pbuf1, &stat_buf,
+ data->ioc_plen1))
+ RETURN(-EFAULT);
+ /* copy UUID */
+ if (cfs_copy_to_user(data->ioc_pbuf2, obd2cli_tgt(osc_obd),
+ data->ioc_plen2))
+ RETURN(-EFAULT);
+ break;
+ }
+ case OBD_IOC_LOV_GET_CONFIG: {
+ 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)
+ if (cfs_copy_to_user((void *)uarg, buf, len))
rc = -EFAULT;
obd_ioctl_freedata(buf, len);
break;
}
case LL_IOC_LOV_SETSTRIPE:
- rc = lov_setstripe(exp, karg, uarg);
+ rc = lov_setstripe(exp, len, karg, uarg);
break;
case LL_IOC_LOV_GETSTRIPE:
rc = lov_getstripe(exp, karg, uarg);
case LL_IOC_LOV_SETEA:
rc = lov_setea(exp, karg, uarg);
break;
+ case OBD_IOC_QUOTACTL: {
+ struct if_quotactl *qctl = karg;
+ struct lov_tgt_desc *tgt = NULL;
+ struct obd_quotactl *oqctl;
+
+ if (qctl->qc_valid == QC_OSTIDX) {
+ if (qctl->qc_idx < 0 || count <= qctl->qc_idx)
+ RETURN(-EINVAL);
+
+ tgt = lov->lov_tgts[qctl->qc_idx];
+ if (!tgt || !tgt->ltd_exp)
+ RETURN(-EINVAL);
+ } else if (qctl->qc_valid == QC_UUID) {
+ for (i = 0; i < count; i++) {
+ tgt = lov->lov_tgts[i];
+ if (!tgt ||
+ !obd_uuid_equals(&tgt->ltd_uuid,
+ &qctl->obd_uuid))
+ continue;
+
+ if (tgt->ltd_exp == NULL)
+ RETURN(-EINVAL);
+
+ break;
+ }
+ } else {
+ RETURN(-EINVAL);
+ }
+
+ if (i >= count)
+ RETURN(-EAGAIN);
+
+ LASSERT(tgt && tgt->ltd_exp);
+ OBD_ALLOC_PTR(oqctl);
+ if (!oqctl)
+ RETURN(-ENOMEM);
+
+ QCTL_COPY(oqctl, qctl);
+ rc = obd_quotactl(tgt->ltd_exp, oqctl);
+ if (rc == 0) {
+ QCTL_COPY(qctl, oqctl);
+ qctl->qc_valid = QC_OSTIDX;
+ qctl->obd_uuid = tgt->ltd_uuid;
+ }
+ OBD_FREE_PTR(oqctl);
+ 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;
RETURN(rc);
}
+#define FIEMAP_BUFFER_SIZE 4096
+
+/**
+ * Non-zero fe_logical indicates that this is a continuation FIEMAP
+ * call. The local end offset and the device are sent in the first
+ * fm_extent. This function calculates the stripe number from the index.
+ * This function returns a stripe_no on which mapping is to be restarted.
+ *
+ * This function returns fm_end_offset which is the in-OST offset at which
+ * mapping should be restarted. If fm_end_offset=0 is returned then caller
+ * will re-calculate proper offset in next stripe.
+ * Note that the first extent is passed to lov_get_info via the value field.
+ *
+ * \param fiemap fiemap request header
+ * \param lsm striping information for the file
+ * \param fm_start logical start of mapping
+ * \param fm_end logical end of mapping
+ * \param start_stripe starting stripe will be returned in this
+ */
+obd_size fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
+ struct lov_stripe_md *lsm, obd_size fm_start,
+ obd_size fm_end, int *start_stripe)
+{
+ obd_size local_end = fiemap->fm_extents[0].fe_logical;
+ obd_off lun_start, lun_end;
+ obd_size fm_end_offset;
+ int stripe_no = -1, i;
+
+ if (fiemap->fm_extent_count == 0 ||
+ fiemap->fm_extents[0].fe_logical == 0)
+ return 0;
+
+ /* Find out stripe_no from ost_index saved in the fe_device */
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ if (lsm->lsm_oinfo[i]->loi_ost_idx ==
+ fiemap->fm_extents[0].fe_device) {
+ stripe_no = i;
+ break;
+ }
+ }
+
+ /* If we have finished mapping on previous device, shift logical
+ * offset to start of next device */
+ if ((lov_stripe_intersects(lsm, stripe_no, fm_start, fm_end,
+ &lun_start, &lun_end)) != 0 &&
+ local_end < lun_end) {
+ fm_end_offset = local_end;
+ *start_stripe = stripe_no;
+ } else {
+ /* This is a special value to indicate that caller should
+ * calculate offset in next stripe. */
+ fm_end_offset = 0;
+ *start_stripe = (stripe_no + 1) % lsm->lsm_stripe_count;
+ }
+
+ return fm_end_offset;
+}
+
+/**
+ * We calculate on which OST the mapping will end. If the length of mapping
+ * is greater than (stripe_size * stripe_count) then the last_stripe will
+ * will be one just before start_stripe. Else we check if the mapping
+ * intersects each OST and find last_stripe.
+ * This function returns the last_stripe and also sets the stripe_count
+ * over which the mapping is spread
+ *
+ * \param lsm striping information for the file
+ * \param fm_start logical start of mapping
+ * \param fm_end logical end of mapping
+ * \param start_stripe starting stripe of the mapping
+ * \param stripe_count the number of stripes across which to map is returned
+ *
+ * \retval last_stripe return the last stripe of the mapping
+ */
+int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, obd_size fm_start,
+ obd_size fm_end, int start_stripe,
+ int *stripe_count)
+{
+ int last_stripe;
+ obd_off obd_start, obd_end;
+ int i, j;
+
+ if (fm_end - fm_start > lsm->lsm_stripe_size * lsm->lsm_stripe_count) {
+ last_stripe = (start_stripe < 1 ? lsm->lsm_stripe_count - 1 :
+ start_stripe - 1);
+ *stripe_count = lsm->lsm_stripe_count;
+ } else {
+ for (j = 0, i = start_stripe; j < lsm->lsm_stripe_count;
+ i = (i + 1) % lsm->lsm_stripe_count, j++) {
+ if ((lov_stripe_intersects(lsm, i, fm_start, fm_end,
+ &obd_start, &obd_end)) == 0)
+ break;
+ }
+ *stripe_count = j;
+ last_stripe = (start_stripe + j - 1) %lsm->lsm_stripe_count;
+ }
+
+ return last_stripe;
+}
+
+/**
+ * Set fe_device and copy extents from local buffer into main return buffer.
+ *
+ * \param fiemap fiemap request header
+ * \param lcl_fm_ext array of local fiemap extents to be copied
+ * \param ost_index OST index to be written into the fm_device field for each
+ extent
+ * \param ext_count number of extents to be copied
+ * \param current_extent where to start copying in main extent array
+ */
+void fiemap_prepare_and_copy_exts(struct ll_user_fiemap *fiemap,
+ struct ll_fiemap_extent *lcl_fm_ext,
+ int ost_index, unsigned int ext_count,
+ int current_extent)
+{
+ char *to;
+ int ext;
+
+ for (ext = 0; ext < ext_count; ext++) {
+ lcl_fm_ext[ext].fe_device = ost_index;
+ lcl_fm_ext[ext].fe_flags |= FIEMAP_EXTENT_NET;
+ }
+
+ /* Copy fm_extent's from fm_local to return buffer */
+ to = (char *)fiemap + fiemap_count_to_size(current_extent);
+ memcpy(to, lcl_fm_ext, ext_count * sizeof(struct ll_fiemap_extent));
+}
+
+/**
+ * Break down the FIEMAP request and send appropriate calls to individual OSTs.
+ * This also handles the restarting of FIEMAP calls in case mapping overflows
+ * the available number of extents in single call.
+ */
+static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
+ __u32 *vallen, void *val, struct lov_stripe_md *lsm)
+{
+ struct ll_fiemap_info_key *fm_key = key;
+ struct ll_user_fiemap *fiemap = val;
+ struct ll_user_fiemap *fm_local = NULL;
+ struct ll_fiemap_extent *lcl_fm_ext;
+ int count_local;
+ unsigned int get_num_extents = 0;
+ int ost_index = 0, actual_start_stripe, start_stripe;
+ obd_size fm_start, fm_end, fm_length, fm_end_offset = 0;
+ obd_size curr_loc;
+ int current_extent = 0, rc = 0, i;
+ int ost_eof = 0; /* EOF for object */
+ int ost_done = 0; /* done with required mapping for this OST? */
+ int last_stripe;
+ int cur_stripe = 0, cur_stripe_wrap = 0, stripe_count;
+ unsigned int buffer_size = FIEMAP_BUFFER_SIZE;
+
+ if (lsm == NULL)
+ GOTO(out, rc = 0);
+
+ if (fiemap_count_to_size(fm_key->fiemap.fm_extent_count) < buffer_size)
+ buffer_size = fiemap_count_to_size(fm_key->fiemap.fm_extent_count);
+
+ OBD_ALLOC(fm_local, buffer_size);
+ if (fm_local == NULL)
+ GOTO(out, rc = -ENOMEM);
+ lcl_fm_ext = &fm_local->fm_extents[0];
+
+ count_local = fiemap_size_to_count(buffer_size);
+
+ memcpy(fiemap, &fm_key->fiemap, sizeof(*fiemap));
+ fm_start = fiemap->fm_start;
+ fm_length = fiemap->fm_length;
+ /* Calculate start stripe, last stripe and length of mapping */
+ actual_start_stripe = start_stripe = lov_stripe_number(lsm, fm_start);
+ fm_end = (fm_length == ~0ULL ? fm_key->oa.o_size :
+ fm_start + fm_length - 1);
+ /* If fm_length != ~0ULL but fm_start+fm_length-1 exceeds file size */
+ if (fm_end > fm_key->oa.o_size)
+ fm_end = fm_key->oa.o_size;
+
+ last_stripe = fiemap_calc_last_stripe(lsm, fm_start, fm_end,
+ actual_start_stripe, &stripe_count);
+
+ fm_end_offset = fiemap_calc_fm_end_offset(fiemap, lsm, fm_start, fm_end,
+ &start_stripe);
+
+ if (fiemap->fm_extent_count == 0) {
+ get_num_extents = 1;
+ count_local = 0;
+ }
+
+ /* Check each stripe */
+ for (cur_stripe = start_stripe, i = 0; i < stripe_count;
+ i++, cur_stripe = (cur_stripe + 1) % lsm->lsm_stripe_count) {
+ obd_size req_fm_len; /* Stores length of required mapping */
+ obd_size len_mapped_single_call;
+ obd_off lun_start, lun_end, obd_object_end;
+ unsigned int ext_count;
+
+ cur_stripe_wrap = cur_stripe;
+
+ /* Find out range of mapping on this stripe */
+ if ((lov_stripe_intersects(lsm, cur_stripe, fm_start, fm_end,
+ &lun_start, &obd_object_end)) == 0)
+ continue;
+
+ /* If this is a continuation FIEMAP call and we are on
+ * starting stripe then lun_start needs to be set to
+ * fm_end_offset */
+ if (fm_end_offset != 0 && cur_stripe == start_stripe)
+ lun_start = fm_end_offset;
+
+ if (fm_length != ~0ULL) {
+ /* Handle fm_start + fm_length overflow */
+ if (fm_start + fm_length < fm_start)
+ fm_length = ~0ULL - fm_start;
+ lun_end = lov_size_to_stripe(lsm, fm_start + fm_length,
+ cur_stripe);
+ } else {
+ lun_end = ~0ULL;
+ }
+
+ if (lun_start == lun_end)
+ continue;
+
+ req_fm_len = obd_object_end - lun_start;
+ fm_local->fm_length = 0;
+ len_mapped_single_call = 0;
+
+ /* If the output buffer is very large and the objects have many
+ * extents we may need to loop on a single OST repeatedly */
+ ost_eof = 0;
+ ost_done = 0;
+ do {
+ if (get_num_extents == 0) {
+ /* Don't get too many extents. */
+ if (current_extent + count_local >
+ fiemap->fm_extent_count)
+ count_local = fiemap->fm_extent_count -
+ current_extent;
+ }
+
+ lun_start += len_mapped_single_call;
+ fm_local->fm_length = req_fm_len - len_mapped_single_call;
+ req_fm_len = fm_local->fm_length;
+ fm_local->fm_extent_count = count_local;
+ fm_local->fm_mapped_extents = 0;
+ fm_local->fm_flags = fiemap->fm_flags;
+
+ fm_key->oa.o_id = lsm->lsm_oinfo[cur_stripe]->loi_id;
+ ost_index = lsm->lsm_oinfo[cur_stripe]->loi_ost_idx;
+
+ if (ost_index < 0 || ost_index >=lov->desc.ld_tgt_count)
+ GOTO(out, rc = -EINVAL);
+
+ /* If OST is inactive, return extent with UNKNOWN flag */
+ if (!lov->lov_tgts[ost_index]->ltd_active) {
+ fm_local->fm_flags |= FIEMAP_EXTENT_LAST;
+ fm_local->fm_mapped_extents = 1;
+
+ lcl_fm_ext[0].fe_logical = lun_start;
+ lcl_fm_ext[0].fe_length = obd_object_end -
+ lun_start;
+ lcl_fm_ext[0].fe_flags |= FIEMAP_EXTENT_UNKNOWN;
+
+ goto inactive_tgt;
+ }
+
+ fm_local->fm_start = lun_start;
+ fm_local->fm_flags &= ~FIEMAP_FLAG_DEVICE_ORDER;
+ memcpy(&fm_key->fiemap, fm_local, sizeof(*fm_local));
+ *vallen=fiemap_count_to_size(fm_local->fm_extent_count);
+ rc = obd_get_info(lov->lov_tgts[ost_index]->ltd_exp,
+ keylen, key, vallen, fm_local, lsm);
+ if (rc != 0)
+ GOTO(out, rc);
+
+inactive_tgt:
+ ext_count = fm_local->fm_mapped_extents;
+ if (ext_count == 0) {
+ ost_done = 1;
+ /* If last stripe has hole at the end,
+ * then we need to return */
+ if (cur_stripe_wrap == last_stripe) {
+ fiemap->fm_mapped_extents = 0;
+ goto finish;
+ }
+ break;
+ }
+
+ /* If we just need num of extents then go to next device */
+ if (get_num_extents) {
+ current_extent += ext_count;
+ break;
+ }
+
+ len_mapped_single_call = lcl_fm_ext[ext_count-1].fe_logical -
+ lun_start + lcl_fm_ext[ext_count - 1].fe_length;
+
+ /* Have we finished mapping on this device? */
+ if (req_fm_len <= len_mapped_single_call)
+ ost_done = 1;
+
+ /* Clear the EXTENT_LAST flag which can be present on
+ * last extent */
+ if (lcl_fm_ext[ext_count-1].fe_flags & FIEMAP_EXTENT_LAST)
+ lcl_fm_ext[ext_count - 1].fe_flags &=
+ ~FIEMAP_EXTENT_LAST;
+
+ curr_loc = lov_stripe_size(lsm,
+ lcl_fm_ext[ext_count - 1].fe_logical+
+ lcl_fm_ext[ext_count - 1].fe_length,
+ cur_stripe);
+ if (curr_loc >= fm_key->oa.o_size)
+ ost_eof = 1;
+
+ fiemap_prepare_and_copy_exts(fiemap, lcl_fm_ext,
+ ost_index, ext_count,
+ current_extent);
+
+ current_extent += ext_count;
+
+ /* Ran out of available extents? */
+ if (current_extent >= fiemap->fm_extent_count)
+ goto finish;
+ } while (ost_done == 0 && ost_eof == 0);
+
+ if (cur_stripe_wrap == last_stripe)
+ goto finish;
+ }
+
+finish:
+ /* Indicate that we are returning device offsets unless file just has
+ * single stripe */
+ if (lsm->lsm_stripe_count > 1)
+ fiemap->fm_flags |= FIEMAP_FLAG_DEVICE_ORDER;
+
+ if (get_num_extents)
+ goto skip_last_device_calc;
+
+ /* Check if we have reached the last stripe and whether mapping for that
+ * stripe is done. */
+ if (cur_stripe_wrap == last_stripe) {
+ if (ost_done || ost_eof)
+ fiemap->fm_extents[current_extent - 1].fe_flags |=
+ FIEMAP_EXTENT_LAST;
+ }
+
+skip_last_device_calc:
+ fiemap->fm_mapped_extents = current_extent;
+
+out:
+ OBD_FREE(fm_local, buffer_size);
+ return rc;
+}
+
static int lov_get_info(struct obd_export *exp, __u32 keylen,
- void *key, __u32 *vallen, void *val)
+ void *key, __u32 *vallen, void *val,
+ struct lov_stripe_md *lsm)
{
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) {
+ obd_getref(obddev);
+
+ if (KEY_IS(KEY_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 &&
- loi->loi_id == res_id->name[0] &&
- loi->loi_gr == res_id->name[2]) {
- lov_tgts_unlock(lov);
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ loi = 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 &&
+ osc_res_name_eq(loi->loi_id, loi->loi_gr, res_id)) {
*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;
+ dump_lsm(D_ERROR, lsm);
+ GOTO(out, rc = -ENXIO);
+ } else if (KEY_IS(KEY_LAST_ID)) {
+ struct obd_id_info *info = val;
+ __u32 size = sizeof(obd_id);
+ struct lov_tgt_desc *tgt;
- if (*vallen < sizeof(*data))
- RETURN(-EFAULT);
+ LASSERT(*vallen == sizeof(struct obd_id_info));
+ tgt = lov->lov_tgts[info->idx];
- 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);
- obd_id *ids = val;
- int rc = 0;
+ if (!tgt || !tgt->ltd_active)
+ GOTO(out, rc = -ESRCH);
- tgt = lov->tgts;
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
- if (!lov_tgt_active(lov, tgt, 0))
- continue;
- rc = obd_get_info(tgt->ltd_exp, keylen, key, &size,
- ids + i);
- lov_tgt_decref(lov, tgt);
- if (rc != 0)
- RETURN(rc);
- }
- RETURN(0);
- } else if (keylen >= strlen("lovdesc") && strcmp(key, "lovdesc") == 0) {
+ rc = obd_get_info(tgt->ltd_exp, keylen, key, &size, info->data, NULL);
+ 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);
+ } else if (KEY_IS(KEY_FIEMAP)) {
+ rc = lov_fiemap(lov, keylen, key, vallen, val, lsm);
+ GOTO(out, rc);
}
- RETURN(-EINVAL);
+ rc = -EINVAL;
+
+out:
+ obd_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;
+ obd_count count;
int i, rc = 0, err;
+ struct lov_tgt_desc *tgt;
+ unsigned incr, check_uuid,
+ do_inactive, no_set;
+ unsigned next_id = 0, mds_con = 0, capa = 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 (vallen != sizeof(int))
- 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;
- }
-
- 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);
+ incr = check_uuid = do_inactive = no_set = 0;
+ if (set == NULL) {
+ no_set = 1;
+ set = ptlrpc_prep_set();
+ if (!set)
+ RETURN(-ENOMEM);
}
- 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;
- }
+ obd_getref(obddev);
+ count = lov->desc.ld_tgt_count;
- err = obd_set_info(exp, keylen, key, vallen, val);
- if (!rc)
- rc = err;
+ if (KEY_IS(KEY_NEXT_ID)) {
+ count = vallen / sizeof(struct obd_id_info);
+ vallen = sizeof(obd_id);
+ incr = sizeof(struct obd_id_info);
+ do_inactive = 1;
+ next_id = 1;
+ } else if (KEY_IS(KEY_CHECKSUM)) {
+ do_inactive = 1;
+ } else if (KEY_IS(KEY_EVICT_BY_NID)) {
+ /* use defaults: do_inactive = incr = 0; */
+ } else if (KEY_IS(KEY_MDS_CONN)) {
+ mds_con = 1;
+ } else if (KEY_IS(KEY_CAPA_KEY)) {
+ capa = 1;
+ }
+
+ for (i = 0; i < count; i++, val = (char *)val + incr) {
+ if (next_id) {
+ tgt = lov->lov_tgts[((struct obd_id_info*)val)->idx];
+ } else {
+ tgt = lov->lov_tgts[i];
}
- lov_tgts_unlock(lov);
+ /* OST was disconnected */
+ if (!tgt || !tgt->ltd_exp)
+ 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)
- 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);
- }
- 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);
+ /* OST is inactive and we don't want inactive OSCs */
+ if (!tgt->ltd_active && !do_inactive)
+ continue;
- //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);
- }
+ if (mds_con) {
+ struct mds_group_info *mgi;
- obdo_free(oa);
- RETURN(0);
- } else if (KEY_IS("audit")) {
- int i = 0;
- struct obd_export * ost_exp;
+ LASSERT(vallen == sizeof(*mgi));
+ mgi = (struct mds_group_info *)val;
- //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);
+ /* Only want a specific OSC */
+ if (mgi->uuid && !obd_uuid_equals(mgi->uuid,
+ &tgt->ltd_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;
- tgt = lov->tgts;
- for (i = 0; i < lov->desc.ld_tgt_count; i++, tgt++) {
- if (!lov_tgt_active(lov, tgt, 0))
+ err = obd_set_info_async(tgt->ltd_exp,
+ keylen, key, sizeof(int),
+ &mgi->group, set);
+ } else if (next_id) {
+ err = obd_set_info_async(tgt->ltd_exp,
+ keylen, key, vallen,
+ ((struct obd_id_info*)val)->data, set);
+ } else if (capa) {
+ struct mds_capa_info *info = (struct mds_capa_info*)val;
+
+ LASSERT(vallen == sizeof(*info));
+
+ /* Only want a specific OSC */
+ if (info->uuid &&
+ !obd_uuid_equals(info->uuid, &tgt->ltd_uuid))
continue;
- rc = obd_set_info(tgt->ltd_exp,
- keylen, key, vallen, val);
- lov_tgt_decref(lov, tgt);
- if (rc)
- RETURN(rc);
- }
-
- RETURN(0);
- } else if (KEY_IS("setext")) {
- struct lov_tgt_desc *tgt;
- int rc = 0, i;
- for (i = 0, tgt = lov->tgts; i < lov->desc.ld_tgt_count;
- i++, tgt++) {
- if (!tgt->ltd_exp)
+ err = obd_set_info_async(tgt->ltd_exp, keylen, key,
+ sizeof(*info->capa),
+ info->capa, set);
+
+ } else {
+ /* Only want a specific OSC */
+ if (check_uuid &&
+ !obd_uuid_equals(val, &tgt->ltd_uuid))
continue;
- rc = obd_set_info(tgt->ltd_exp,
- keylen, key, vallen, val);
- if (rc)
- RETURN(rc);
+
+ err = obd_set_info_async(tgt->ltd_exp,
+ keylen, key, vallen, val, set);
}
- RETURN(0);
- } else {
- RETURN(-EINVAL);
+ if (!rc)
+ rc = err;
}
- 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);
+ obd_putref(obddev);
+ if (no_set) {
+ err = ptlrpc_set_wait(set);
if (!rc)
rc = err;
- if (active)
- lov_tgt_decref(lov, tgt);
+ ptlrpc_set_destroy(set);
}
RETURN(rc);
-#undef KEY_IS
}
-#if 0
-struct lov_multi_wait {
- struct ldlm_lock *lock;
- wait_queue_t wait;
- int completed;
- int generation;
-};
-
-int lov_complete_many(struct obd_export *exp, struct lov_stripe_md *lsm,
- struct lustre_handle *lockh)
+int lov_test_and_clear_async_rc(struct lov_stripe_md *lsm)
{
- struct lov_lock_handles *lov_lockh = NULL;
- struct lustre_handle *lov_lockhp;
- struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_multi_wait *queues;
- int rc = 0, i;
+ int i, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
-
- if (!exp || !exp->exp_obd)
- RETURN(-ENODEV);
-
- LASSERT(lockh != NULL);
- if (lsm->lsm_stripe_count > 1) {
- lov_lockh = lov_handle2llh(lockh);
- if (lov_lockh == NULL) {
- CERROR("LOV: invalid lov lock handle %p\n", lockh);
- RETURN(-EINVAL);
- }
-
- lov_lockhp = lov_lockh->llh_handles;
- } else {
- lov_lockhp = lockh;
+ 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);
- OBD_ALLOC(queues, lsm->lsm_stripe_count * sizeof(*queues));
- if (queues == NULL)
- GOTO(out, rc = -ENOMEM);
- lov = &exp->exp_obd->u.lov;
- for (i = 0, loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count;
- i++, loi++, lov_lockhp++) {
- struct ldlm_lock *lock;
- struct obd_device *obd;
- unsigned long irqflags;
-
- lock = ldlm_handle2lock(lov_lockhp);
- if (lock == NULL) {
- CDEBUG(D_HA, "lov idx %d subobj "LPX64" no lock?\n",
- loi->loi_ost_idx, loi->loi_id);
- queues[i].completed = 1;
- continue;
- }
-
- queues[i].lock = lock;
- init_waitqueue_entry(&(queues[i].wait), current);
- add_wait_queue(lock->l_waitq, &(queues[i].wait));
-
- obd = class_exp2obd(lock->l_conn_export);
- if (obd != NULL)
- imp = obd->u.cli.cl_import;
- if (imp != NULL) {
- spin_lock_irqsave(&imp->imp_lock, irqflags);
- queues[i].generation = imp->imp_generation;
- spin_unlock_irqrestore(&imp->imp_lock, irqflags);
- }
+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 {
+ LBUG();
}
- lwi = LWI_TIMEOUT_INTR(obd_timeout * HZ, ldlm_expired_completion_wait,
- interrupted_completion_wait, &lwd);
- rc = l_wait_event_added(check_multi_complete(queues, lsm), &lwi);
-
- for (i = 0; i < lsm->lsm_stripe_count; i++)
- remove_wait_queue(lock->l_waitq, &(queues[i].wait));
-
- if (rc == -EINTR || rc == -ETIMEDOUT) {
-
+ RETURN(0);
+}
- }
+void lov_stripe_lock(struct lov_stripe_md *md)
+{
+ LASSERT(md->lsm_lock_owner != cfs_curproc_pid());
+ cfs_spin_lock(&md->lsm_lock);
+ LASSERT(md->lsm_lock_owner == 0);
+ md->lsm_lock_owner = cfs_curproc_pid();
+}
+EXPORT_SYMBOL(lov_stripe_lock);
- out:
- if (lov_lockh != NULL)
- lov_llh_put(lov_lockh);
- RETURN(rc);
+void lov_stripe_unlock(struct lov_stripe_md *md)
+{
+ LASSERT(md->lsm_lock_owner == cfs_curproc_pid());
+ md->lsm_lock_owner = 0;
+ cfs_spin_unlock(&md->lsm_lock);
}
-#endif
+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_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_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_async_io = lov_queue_async_io,
- .o_set_async_flags = lov_set_async_flags,
- .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_enqueue = lov_enqueue,
- .o_match = lov_match,
.o_change_cbdata = lov_change_cbdata,
.o_cancel = lov_cancel,
.o_cancel_unused = lov_cancel_unused,
.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,
+ .o_pool_new = lov_pool_new,
+ .o_pool_rem = lov_pool_remove,
+ .o_pool_add = lov_pool_add,
+ .o_pool_del = lov_pool_del,
+ .o_getref = lov_getref,
+ .o_putref = lov_putref,
};
+static quota_interface_t *quota_interface;
+extern quota_interface_t lov_quota_interface;
+
+cfs_mem_cache_t *lov_oinfo_slab;
+
+extern struct lu_kmem_descr lov_caches[];
+
int __init lov_init(void)
{
- struct lprocfs_static_vars lvars;
- int rc;
+ struct lprocfs_static_vars lvars = { 0 };
+ int rc, rc2;
ENTRY;
- lprocfs_init_vars(lov, &lvars);
+ /* print an address of _any_ initialized kernel symbol from this
+ * module, to allow debugging with gdb that doesn't support data
+ * symbols from modules.*/
+ CDEBUG(D_CONSOLE, "Lustre LOV module (%p).\n", &lov_caches);
+
+ rc = lu_kmem_init(lov_caches);
+ if (rc)
+ return rc;
+
+ lov_oinfo_slab = cfs_mem_cache_create("lov_oinfo",
+ sizeof(struct lov_oinfo),
+ 0, CFS_SLAB_HWCACHE_ALIGN);
+ if (lov_oinfo_slab == NULL) {
+ lu_kmem_fini(lov_caches);
+ return -ENOMEM;
+ }
+ lprocfs_lov_init_vars(&lvars);
+
+ cfs_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, &lov_device_type);
+
+ if (rc) {
+ if (quota_interface)
+ PORTAL_SYMBOL_PUT(lov_quota_interface);
+ rc2 = cfs_mem_cache_destroy(lov_oinfo_slab);
+ LASSERT(rc2 == 0);
+ lu_kmem_fini(lov_caches);
+ }
+
RETURN(rc);
}
#ifdef __KERNEL__
static void /*__exit*/ lov_exit(void)
{
- class_unregister_type(OBD_LOV_DEVICENAME);
+ int rc;
+
+ lu_device_type_fini(&lov_device_type);
+ lu_kmem_fini(lov_caches);
+
+ 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_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
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