- /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
+ * Copyright (C) 2002-2006 Cluster File Systems, Inc.
* Author: Phil Schwan <phil@clusterfs.com>
* Peter Braam <braam@clusterfs.com>
* Mike Shaver <shaver@clusterfs.com>
+ * Nathan Rutman <nathan@clusterfs.com>
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This file is part of the Lustre file system, http://www.lustre.org
+ * Lustre is a trademark of Cluster File Systems, Inc.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * You may have signed or agreed to another license before downloading
+ * this software. If so, you are bound by the terms and conditions
+ * of that agreement, and the following does not apply to you. See the
+ * LICENSE file included with this distribution for more information.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * If you did not agree to a different license, then this copy of Lustre
+ * is open source software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * In either case, Lustre is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * license text for more details.
*/
-#define EXPORT_SYMTAB
+#ifndef EXPORT_SYMTAB
+# define EXPORT_SYMTAB
+#endif
#define DEBUG_SUBSYSTEM S_LOV
#ifdef __KERNEL__
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/random.h>
-#include <linux/slab.h>
-#include <linux/pagemap.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_lite.h> /* for LL_IOC_LOV_[GS]ETSTRIPE */
-#include <linux/lustre_mds.h>
-#include <linux/obd_class.h>
-#include <linux/obd_lov.h>
-#include <linux/seq_file.h>
-#include <linux/lprocfs_status.h>
-
-struct lov_file_handles {
- struct portals_handle lfh_handle;
- atomic_t lfh_refcount;
- struct list_head lfh_list;
- int lfh_count;
- struct obd_client_handle *lfh_och;
-};
-
-struct lov_lock_handles {
- struct portals_handle llh_handle;
- atomic_t llh_refcount;
- int llh_stripe_count;
- struct lustre_handle llh_handles[0];
-};
-
-/* lov_file_handles helpers */
-static void lov_lfh_addref(void *lfhp)
+#include <obd_support.h>
+#include <lustre_lib.h>
+#include <lustre_net.h>
+#include <lustre/lustre_idl.h>
+#include <lustre_dlm.h>
+#include <lustre_mds.h>
+#include <lustre_debug.h>
+#include <obd_class.h>
+#include <obd_lov.h>
+#include <obd_ost.h>
+#include <lprocfs_status.h>
+#include <lustre_param.h>
+
+#include "lov_internal.h"
+
+
+/* Keep a refcount of lov->tgt usage to prevent racing with addition/deletion.
+ Any function that expects lov_tgts to remain stationary must take a ref. */
+void lov_getref(struct obd_device *obd)
{
- struct lov_file_handles *lfh = lfhp;
+ struct lov_obd *lov = &obd->u.lov;
- atomic_inc(&lfh->lfh_refcount);
- CDEBUG(D_INFO, "GETting lfh %p : new refcount %d\n", lfh,
- atomic_read(&lfh->lfh_refcount));
+ /* nobody gets through here until lov_putref is done */
+ mutex_down(&lov->lov_lock);
+ atomic_inc(&lov->lov_refcount);
+ mutex_up(&lov->lov_lock);
+ return;
}
-static struct lov_file_handles *lov_lfh_new(void)
-{
- struct lov_file_handles *lfh;
+static void __lov_del_obd(struct obd_device *obd, __u32 index);
- OBD_ALLOC(lfh, sizeof *lfh);
- if (lfh == NULL) {
- CERROR("out of memory\n");
- return NULL;
+void lov_putref(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+ mutex_down(&lov->lov_lock);
+ /* ok to dec to 0 more than once -- ltd_exp's will be null */
+ if (atomic_dec_and_test(&lov->lov_refcount) && lov->lov_death_row) {
+ int i;
+ CDEBUG(D_CONFIG, "destroying %d lov targets\n",
+ lov->lov_death_row);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_reap)
+ continue;
+ /* Disconnect and delete from list */
+ __lov_del_obd(obd, i);
+ lov->lov_death_row--;
+ }
}
-
- atomic_set(&lfh->lfh_refcount, 2);
-
- INIT_LIST_HEAD(&lfh->lfh_handle.h_link);
- class_handle_hash(&lfh->lfh_handle, lov_lfh_addref);
-
- return lfh;
+ mutex_up(&lov->lov_lock);
}
-static struct lov_file_handles *lov_handle2lfh(struct lustre_handle *handle)
+#define MAX_STRING_SIZE 128
+static int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
+ struct obd_connect_data *data)
{
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_uuid tgt_uuid = lov->lov_tgts[index]->ltd_uuid;
+ struct obd_device *tgt_obd;
+ struct obd_uuid lov_osc_uuid = { "LOV_OSC_UUID" };
+ struct lustre_handle conn = {0, };
+ struct obd_import *imp;
+#ifdef __KERNEL__
+ cfs_proc_dir_entry_t *lov_proc_dir;
+#endif
+ int rc;
ENTRY;
- LASSERT(handle != NULL);
- RETURN(class_handle2object(handle->cookie));
-}
-static void lov_lfh_put(struct lov_file_handles *lfh)
-{
- CDEBUG(D_INFO, "PUTting lfh %p : new refcount %d\n", lfh,
- atomic_read(&lfh->lfh_refcount) - 1);
- LASSERT(atomic_read(&lfh->lfh_refcount) > 0 &&
- atomic_read(&lfh->lfh_refcount) < 0x5a5a);
- if (atomic_dec_and_test(&lfh->lfh_refcount)) {
- LASSERT(list_empty(&lfh->lfh_handle.h_link));
- OBD_FREE(lfh, sizeof *lfh);
- }
-}
+ if (!lov->lov_tgts[index])
+ RETURN(-EINVAL);
-static void lov_lfh_destroy(struct lov_file_handles *lfh)
-{
- class_handle_unhash(&lfh->lfh_handle);
- lov_lfh_put(lfh);
-}
+ tgt_obd = class_find_client_obd(&tgt_uuid, LUSTRE_OSC_NAME,
+ &obd->obd_uuid);
-static void lov_llh_addref(void *llhp)
-{
- struct lov_lock_handles *llh = llhp;
+ if (!tgt_obd) {
+ CERROR("Target %s not attached\n", obd_uuid2str(&tgt_uuid));
+ RETURN(-EINVAL);
+ }
+ if (!tgt_obd->obd_set_up) {
+ CERROR("Target %s not set up\n", obd_uuid2str(&tgt_uuid));
+ RETURN(-EINVAL);
+ }
- atomic_inc(&llh->llh_refcount);
- CDEBUG(D_INFO, "GETting llh %p : new refcount %d\n", llh,
- atomic_read(&llh->llh_refcount));
-}
+ if (data && (data->ocd_connect_flags & OBD_CONNECT_INDEX))
+ data->ocd_index = index;
-static struct lov_lock_handles *lov_llh_new(struct lov_stripe_md *lsm)
-{
- struct lov_lock_handles *llh;
+ /*
+ * Divine LOV knows that OBDs under it are OSCs.
+ */
+ imp = tgt_obd->u.cli.cl_import;
- OBD_ALLOC(llh, sizeof *llh +
- sizeof(*llh->llh_handles) * lsm->lsm_stripe_count);
- if (llh == NULL) {
- CERROR("out of memory\n");
- return NULL;
+ if (activate) {
+ tgt_obd->obd_no_recov = 0;
+ /* FIXME this is probably supposed to be
+ ptlrpc_set_import_active. Horrible naming. */
+ ptlrpc_activate_import(imp);
}
- atomic_set(&llh->llh_refcount, 2);
- llh->llh_stripe_count = lsm->lsm_stripe_count;
- INIT_LIST_HEAD(&llh->llh_handle.h_link);
- class_handle_hash(&llh->llh_handle, lov_llh_addref);
- return llh;
-}
-static struct lov_lock_handles *lov_handle2llh(struct lustre_handle *handle)
-{
- ENTRY;
- LASSERT(handle != NULL);
- RETURN(class_handle2object(handle->cookie));
-}
+ if (imp->imp_invalid) {
+ CERROR("not connecting OSC %s; administratively "
+ "disabled\n", obd_uuid2str(&tgt_uuid));
+ rc = obd_register_observer(tgt_obd, obd);
+ if (rc) {
+ CERROR("Target %s register_observer error %d; "
+ "will not be able to reactivate\n",
+ obd_uuid2str(&tgt_uuid), rc);
+ }
+ RETURN(0);
+ }
-static void lov_llh_put(struct lov_lock_handles *llh)
-{
- CDEBUG(D_INFO, "PUTting llh %p : new refcount %d\n", llh,
- atomic_read(&llh->llh_refcount) - 1);
- LASSERT(atomic_read(&llh->llh_refcount) > 0 &&
- atomic_read(&llh->llh_refcount) < 0x5a5a);
- if (atomic_dec_and_test(&llh->llh_refcount)) {
- LASSERT(list_empty(&llh->llh_handle.h_link));
- OBD_FREE(llh, sizeof *llh +
- sizeof(*llh->llh_handles) * llh->llh_stripe_count);
+ rc = obd_connect(NULL, &conn, tgt_obd, &lov_osc_uuid, data);
+ if (rc) {
+ CERROR("Target %s connect error %d\n",
+ obd_uuid2str(&tgt_uuid), rc);
+ RETURN(rc);
+ }
+ lov->lov_tgts[index]->ltd_exp = class_conn2export(&conn);
+ if (!lov->lov_tgts[index]->ltd_exp) {
+ CERROR("Target %s: null export!\n", obd_uuid2str(&tgt_uuid));
+ RETURN(-ENODEV);
}
-}
-static void lov_llh_destroy(struct lov_lock_handles *llh)
-{
- class_handle_unhash(&llh->llh_handle);
- lov_llh_put(llh);
-}
+ rc = obd_register_observer(tgt_obd, obd);
+ if (rc) {
+ CERROR("Target %s register_observer error %d\n",
+ obd_uuid2str(&tgt_uuid), rc);
+ obd_disconnect(lov->lov_tgts[index]->ltd_exp);
+ lov->lov_tgts[index]->ltd_exp = NULL;
+ RETURN(rc);
+ }
-/* obd methods */
-int lov_attach(struct obd_device *dev, obd_count len, void *data)
-{
- struct lprocfs_static_vars lvars;
- struct proc_dir_entry *entry;
- int rc;
+ lov->lov_tgts[index]->ltd_reap = 0;
+ if (activate) {
+ lov->lov_tgts[index]->ltd_active = 1;
+ lov->desc.ld_active_tgt_count++;
+ }
+ CDEBUG(D_CONFIG, "Connected tgt idx %d %s (%s) %sactive\n", index,
+ obd_uuid2str(&tgt_uuid), tgt_obd->obd_name, activate ? "":"in");
- lprocfs_init_vars(&lvars);
- rc = lprocfs_obd_attach(dev, lvars.obd_vars);
- if (rc)
- return rc;
+#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);
+ cfs_proc_dir_entry_t *osc_symlink;
+ char name[MAX_STRING_SIZE];
+
+ LASSERT(osc_obd != NULL);
+ LASSERT(osc_obd->obd_magic == OBD_DEVICE_MAGIC);
+ LASSERT(osc_obd->obd_type->typ_name != NULL);
+ 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);
+ if (osc_symlink == NULL) {
+ CERROR("could not register LOV target "
+ "/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);
+ }
+ }
+#endif
- entry = create_proc_entry("target_obd", 0444, dev->obd_proc_entry);
- if (entry == NULL)
- RETURN(-ENOMEM);
- entry->proc_fops = &ll_proc_target_fops;
- entry->data = dev;
-
- return rc;
-
-}
+ rc = qos_add_tgt(obd, index);
+ if (rc)
+ CERROR("qos_add_tgt failed %d\n", rc);
-int lov_detach(struct obd_device *dev)
-{
- return lprocfs_obd_detach(dev);
+ RETURN(0);
}
-static int lov_connect(struct lustre_handle *conn, struct obd_device *obd,
- struct obd_uuid *cluuid)
+static int lov_connect(const struct lu_env *env,
+ struct lustre_handle *conn, struct obd_device *obd,
+ struct obd_uuid *cluuid, struct obd_connect_data *data)
{
- struct ptlrpc_request *req = NULL;
struct lov_obd *lov = &obd->u.lov;
- struct client_obd *mdc = &lov->mdcobd->u.cli;
- struct lov_desc *desc = &lov->desc;
- struct lov_desc *mdesc;
- struct lov_tgt_desc *tgts;
- struct obd_export *exp;
- struct lustre_handle mdc_conn;
- struct obd_uuid lov_mds_uuid = {"LOV_MDS_UUID"};
- struct obd_uuid *uuids;
- int rc, rc2, i;
+ struct lov_tgt_desc *tgt;
+ int i, rc;
ENTRY;
+ CDEBUG(D_CONFIG, "connect #%d\n", lov->lov_connects);
+
rc = class_connect(conn, obd, cluuid);
if (rc)
RETURN(rc);
- /* We don't want to actually do the underlying connections more than
- * once, so keep track. */
- lov->refcount++;
- if (lov->refcount > 1)
- RETURN(0);
-
- exp = class_conn2export(conn);
- spin_lock_init(&exp->exp_lov_data.led_lock);
- INIT_LIST_HEAD(&exp->exp_lov_data.led_open_head);
+ /* Why should there ever be more than 1 connect? */
+ lov->lov_connects++;
+ LASSERT(lov->lov_connects == 1);
- /* retrieve LOV metadata from MDS */
- rc = obd_connect(&mdc_conn, lov->mdcobd, &lov_mds_uuid);
- if (rc) {
- CERROR("cannot connect to mdc: rc = %d\n", rc);
- GOTO(out_conn, rc);
- }
+ memset(&lov->lov_ocd, 0, sizeof(lov->lov_ocd));
+ if (data)
+ lov->lov_ocd = *data;
- rc = mdc_getlovinfo(obd, &mdc_conn, &req);
- rc2 = obd_disconnect(&mdc_conn, 0);
- if (rc) {
- CERROR("cannot get lov info %d\n", rc);
- GOTO(out_conn, rc);
+ lov_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ tgt = lov->lov_tgts[i];
+ if (!tgt || obd_uuid_empty(&tgt->ltd_uuid))
+ continue;
+ /* Flags will be lowest common denominator */
+ rc = lov_connect_obd(obd, i, tgt->ltd_activate, &lov->lov_ocd);
+ if (rc) {
+ CERROR("%s: lov connect tgt %d failed: %d\n",
+ obd->obd_name, i, rc);
+ continue;
+ }
}
+ lov_putref(obd);
- if (rc2) {
- CERROR("error disconnecting from MDS %d\n", rc2);
- GOTO(out_req, rc = rc2);
- }
+ RETURN(0);
+}
- /* mdc_getlovinfo() has checked and swabbed the reply. It has also
- * done some simple checks (e.g. #uuids consistent with desc, uuid
- * array fits in LOV_MAX_UUID_BUFFER_SIZE and all uuids are
- * terminated), but I still need to verify it makes overall
- * sense */
- mdesc = lustre_msg_buf (req->rq_repmsg, 0, sizeof (*mdesc));
- LASSERT (mdesc != NULL);
- LASSERT_REPSWABBED (req, 0);
+static int lov_disconnect_obd(struct obd_device *obd, __u32 index)
+{
+ cfs_proc_dir_entry_t *lov_proc_dir;
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_device *osc_obd =
+ class_exp2obd(lov->lov_tgts[index]->ltd_exp);
+ int rc;
+ ENTRY;
- *desc = *mdesc;
+ CDEBUG(D_CONFIG, "%s: disconnecting target %s\n",
+ obd->obd_name, osc_obd->obd_name);
- if (!obd_uuid_equals(&obd->obd_uuid, &desc->ld_uuid)) {
- CERROR("LOV desc: uuid %s not on mds device (%s)\n",
- obd->obd_uuid.uuid, desc->ld_uuid.uuid);
- GOTO(out_req, rc = -EINVAL);
+ if (lov->lov_tgts[index]->ltd_active) {
+ lov->lov_tgts[index]->ltd_active = 0;
+ lov->desc.ld_active_tgt_count--;
}
- /* 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.
- */
- if ((desc->ld_default_stripe_count ?
- desc->ld_default_stripe_count : desc->ld_tgt_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,
- desc->ld_default_stripe_count ?
- desc->ld_default_stripe_count : desc->ld_tgt_count,~0UL);
- GOTO(out_req, rc = -EINVAL);
- }
-
- /* We know ld_tgt_count is reasonable (the array of UUIDS fits in
- * the maximum buffer size, so we won't be making outrageous
- * demands on memory here. */
- lov->bufsize = sizeof(struct lov_tgt_desc) * desc->ld_tgt_count;
- OBD_ALLOC(lov->tgts, lov->bufsize);
- if (!lov->tgts) {
- CERROR("Out of memory\n");
- GOTO(out_req, rc = -ENOMEM);
- }
-
- uuids = lustre_msg_buf(req->rq_repmsg, 1,
- sizeof(*uuids) * desc->ld_tgt_count);
- LASSERT (uuids != NULL);
- LASSERT_REPSWABBED (req, 1);
-
- for (i = 0, tgts = lov->tgts; i < desc->ld_tgt_count; i++, tgts++) {
- struct obd_uuid *uuid = &tgts->uuid;
- struct obd_device *tgt_obd;
- struct obd_uuid lov_osc_uuid = { "LOV_OSC_UUID" };
-
- /* NULL termination already checked */
- *uuid = uuids[i];
-
- tgt_obd = client_tgtuuid2obd(uuid);
+ lov_proc_dir = lprocfs_srch(obd->obd_proc_entry, "target_obds");
+ if (lov_proc_dir) {
+ cfs_proc_dir_entry_t *osc_symlink;
- if (!tgt_obd) {
- CERROR("Target %s not attached\n", uuid->uuid);
- GOTO(out_disc, rc = -EINVAL);
- }
-
- if (!tgt_obd->obd_set_up) {
- CERROR("Target %s not set up\n", uuid->uuid);
- GOTO(out_disc, rc = -EINVAL);
+ osc_symlink = lprocfs_srch(lov_proc_dir, osc_obd->obd_name);
+ if (osc_symlink) {
+ lprocfs_remove(&osc_symlink);
+ } else {
+ CERROR("/proc/fs/lustre/%s/%s/target_obds/%s missing.",
+ obd->obd_type->typ_name, obd->obd_name,
+ osc_obd->obd_name);
}
+ }
- rc = obd_connect(&tgts->conn, tgt_obd, &lov_osc_uuid);
-
- if (rc) {
- CERROR("Target %s connect error %d\n", uuid->uuid, rc);
- GOTO(out_disc, rc);
- }
+ 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.
+ */
+ osc_obd->obd_force = obd->obd_force;
+ osc_obd->obd_fail = obd->obd_fail;
+ osc_obd->obd_no_recov = obd->obd_no_recov;
+ }
- rc = obd_iocontrol(IOC_OSC_REGISTER_LOV, &tgts->conn,
- sizeof(struct obd_device *), obd, NULL);
- if (rc) {
- CERROR("Target %s REGISTER_LOV error %d\n",
- uuid->uuid, rc);
- obd_disconnect(&tgts->conn, 0);
- GOTO(out_disc, rc);
- }
+ obd_register_observer(osc_obd, NULL);
- desc->ld_active_tgt_count++;
- tgts->active = 1;
+ rc = obd_disconnect(lov->lov_tgts[index]->ltd_exp);
+ if (rc) {
+ CERROR("Target %s disconnect error %d\n",
+ lov_uuid2str(lov, index), rc);
+ rc = 0;
}
- mdc->cl_max_mds_easize = obd_size_diskmd(conn, NULL);
- ptlrpc_req_finished (req);
- class_export_put(exp);
- RETURN (0);
+ qos_del_tgt(obd, index);
- out_disc:
- while (i-- > 0) {
- struct obd_uuid uuid;
- --tgts;
- --desc->ld_active_tgt_count;
- tgts->active = 0;
- /* save for CERROR below; (we know it's terminated) */
- uuid = tgts->uuid;
- rc2 = obd_disconnect(&tgts->conn, 0);
- if (rc2)
- CERROR("error: LOV target %s disconnect on OST idx %d: "
- "rc = %d\n", uuid.uuid, i, rc2);
- }
- OBD_FREE(lov->tgts, lov->bufsize);
- out_req:
- ptlrpc_req_finished (req);
- out_conn:
- class_export_put(exp);
- class_disconnect(conn, 0);
- RETURN (rc);
+ lov->lov_tgts[index]->ltd_exp = NULL;
+ RETURN(0);
}
-static int lov_disconnect(struct lustre_handle *conn, int failover)
+static int lov_del_target(struct obd_device *obd, __u32 index,
+ struct obd_uuid *uuidp, int gen);
+
+static int lov_disconnect(struct obd_export *exp)
{
- struct obd_device *obd = class_conn2obd(conn);
+ struct obd_device *obd = class_exp2obd(exp);
struct lov_obd *lov = &obd->u.lov;
- struct obd_export *exp;
- struct list_head *p, *n;
- 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;
+ lov->lov_connects--;
+ if (lov->lov_connects != 0) {
+ /* why should there be more than 1 connect? */
+ CERROR("disconnect #%d\n", lov->lov_connects);
+ goto out;
+ }
+ /* Let's hold another reference so lov_del_obd doesn't spin through
+ putref every time */
+ lov_getref(obd);
for (i = 0; i < lov->desc.ld_tgt_count; i++) {
- if (obd->obd_no_recov) {
- /* 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.
- */
- struct obd_device *osc_obd =
- class_conn2obd(&lov->tgts[i].conn);
- osc_obd->obd_no_recov = 1;
- }
- rc = obd_disconnect(&lov->tgts[i].conn, failover);
- if (rc) {
- if (lov->tgts[i].active) {
- CERROR("Target %s disconnect error %d\n",
- lov->tgts[i].uuid.uuid, rc);
- }
- rc = 0;
- }
- if (lov->tgts[i].active) {
- lov->desc.ld_active_tgt_count--;
- lov->tgts[i].active = 0;
+ 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);
}
}
- OBD_FREE(lov->tgts, lov->bufsize);
- lov->bufsize = 0;
- lov->tgts = NULL;
+ lov_putref(obd);
- exp = class_conn2export(conn);
- if (exp == NULL) {
- CERROR("export handle "LPU64" invalid! If you can reproduce, "
- "please send a full debug log to phik\n", conn->cookie);
- RETURN(0);
- }
- spin_lock(&exp->exp_lov_data.led_lock);
- list_for_each_safe(p, n, &exp->exp_lov_data.led_open_head) {
- /* XXX close these, instead of just discarding them? */
- struct lov_file_handles *lfh;
- lfh = list_entry(p, typeof(*lfh), lfh_list);
- CERROR("discarding open LOV handle %p:"LPX64"\n",
- lfh, lfh->lfh_handle.h_cookie);
- list_del(&lfh->lfh_list);
- OBD_FREE(lfh->lfh_och, lfh->lfh_count * FD_OSTDATA_SIZE);
- lov_lfh_destroy(lfh);
- lov_lfh_put(lfh);
- }
- spin_unlock(&exp->exp_lov_data.led_lock);
- class_export_put(exp);
-
- out_local:
- rc = class_disconnect(conn, 0);
+out:
+ rc = class_disconnect(exp); /* bz 9811 */
RETURN(rc);
}
* -ENOTCONN: The UUID is found, but the target connection is bad (!)
* -EBADF : The UUID is found, but the OBD is the wrong type (!)
*/
-static int lov_set_osc_active(struct lov_obd *lov, struct obd_uuid *uuid,
+static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
int activate)
{
- struct obd_device *obd;
+ struct lov_obd *lov = &obd->u.lov;
struct lov_tgt_desc *tgt;
int i, rc = 0;
ENTRY;
CDEBUG(D_INFO, "Searching in lov %p for uuid %s (activate=%d)\n",
lov, uuid->uuid, activate);
- spin_lock(&lov->lov_lock);
- for (i = 0, tgt = lov->tgts; i < lov->desc.ld_tgt_count; i++, tgt++) {
+ lov_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ tgt = lov->lov_tgts[i];
+ if (!tgt || !tgt->ltd_exp)
+ continue;
+
CDEBUG(D_INFO, "lov idx %d is %s conn "LPX64"\n",
- i, tgt->uuid.uuid, tgt->conn.cookie);
- if (strncmp(uuid->uuid, tgt->uuid.uuid, sizeof uuid->uuid) == 0)
+ i, obd_uuid2str(&tgt->ltd_uuid),
+ tgt->ltd_exp->exp_handle.h_cookie);
+ if (obd_uuid_equals(uuid, &tgt->ltd_uuid))
break;
}
if (i == lov->desc.ld_tgt_count)
GOTO(out, rc = -EINVAL);
- obd = class_conn2obd(&tgt->conn);
- if (obd == NULL) {
- /* This can happen if OST failure races with node shutdown */
- GOTO(out, rc = -ENOTCONN);
- }
-
- CDEBUG(D_INFO, "Found OBD %s=%s device %d (%p) type %s at LOV idx %d\n",
- obd->obd_name, obd->obd_uuid.uuid, obd->obd_minor, obd,
- obd->obd_type->typ_name, i);
- LASSERT(strcmp(obd->obd_type->typ_name, "osc") == 0);
-
- if (tgt->active == activate) {
- CDEBUG(D_INFO, "OBD %p already %sactive!\n", obd,
+ if (lov->lov_tgts[i]->ltd_active == activate) {
+ CDEBUG(D_INFO, "OSC %s already %sactive!\n", uuid->uuid,
activate ? "" : "in");
GOTO(out, rc);
}
- CDEBUG(D_INFO, "Marking OBD %p %sactive\n", obd, activate ? "" : "in");
+ CDEBUG(D_CONFIG, "Marking OSC %s %sactive\n", obd_uuid2str(uuid),
+ activate ? "" : "in");
- tgt->active = activate;
- if (activate) {
- /*
- * foreach(export)
- * foreach(open_file)
- * if (file_handle uses this_osc)
- * if (has_no_filehandle)
- * open(file_handle, this_osc);
- */
- /* XXX reconnect? */
+ lov->lov_tgts[i]->ltd_active = activate;
+ if (activate)
lov->desc.ld_active_tgt_count++;
- } else {
- /*
- * Should I invalidate filehandles that refer to this OSC, so
- * that I reopen them during reactivation?
- */
- /* XXX disconnect from OSC? */
+ else
lov->desc.ld_active_tgt_count--;
- }
+ /* remove any old qos penalty */
+ lov->lov_tgts[i]->ltd_qos.ltq_penalty = 0;
-#warning "FIXME: walk open files list for objects that need opening"
- EXIT;
out:
- spin_unlock(&lov->lov_lock);
- return rc;
+ lov_putref(obd);
+ RETURN(rc);
}
-static int lov_setup(struct obd_device *obd, obd_count len, void *buf)
+static int lov_notify(struct obd_device *obd, struct obd_device *watched,
+ enum obd_notify_event ev, void *data)
{
- struct obd_ioctl_data *data = buf;
- struct lov_obd *lov = &obd->u.lov;
int rc = 0;
ENTRY;
- if (data->ioc_inllen1 < 1) {
- CERROR("LOV setup requires an MDC name\n");
- RETURN(-EINVAL);
+ if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE) {
+ struct obd_uuid *uuid;
+
+ LASSERT(watched);
+
+ 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;
+
+ /* Set OSC as active before notifying the observer, so the
+ * observer can use the OSC normally.
+ */
+ rc = lov_set_osc_active(obd, uuid, ev == OBD_NOTIFY_ACTIVE);
+ if (rc) {
+ CERROR("%sactivation of %s failed: %d\n",
+ (ev == OBD_NOTIFY_ACTIVE) ? "" : "de",
+ obd_uuid2str(uuid), rc);
+ RETURN(rc);
+ }
}
- spin_lock_init(&lov->lov_lock);
- lov->mdcobd = class_name2obd(data->ioc_inlbuf1);
- if (!lov->mdcobd) {
- CERROR("LOV %s cannot locate MDC %s\n", obd->obd_uuid.uuid,
- data->ioc_inlbuf1);
- rc = -EINVAL;
+ /* Pass the notification up the chain. */
+ if (watched) {
+ rc = obd_notify_observer(obd, watched, ev, data);
+ } else {
+ /* NULL watched means all osc's in the lov (only for syncs) */
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_device *tgt_obd;
+ int i;
+ lov_getref(obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i])
+ continue;
+ tgt_obd = class_exp2obd(lov->lov_tgts[i]->ltd_exp);
+ rc = obd_notify_observer(obd, tgt_obd, ev, data);
+ if (rc) {
+ CERROR("%s: notify %s of %s failed %d\n",
+ obd->obd_name,
+ obd->obd_observer->obd_name,
+ tgt_obd->obd_name, rc);
+ break;
+ }
+ }
+ lov_putref(obd);
}
+
RETURN(rc);
}
-/* compute object size given "stripeno" and the ost size */
-static obd_size lov_stripe_size(struct lov_stripe_md *lsm, obd_size ost_size,
- int stripeno)
+static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
+ __u32 index, int gen, int active)
{
- unsigned long ssize = lsm->lsm_stripe_size;
- unsigned long swidth = ssize * lsm->lsm_stripe_count;
- unsigned long stripe_size;
- obd_size lov_size;
+ struct lov_obd *lov = &obd->u.lov;
+ struct lov_tgt_desc *tgt;
+ int rc;
+ ENTRY;
- if (ost_size == 0)
- return 0;
+ CDEBUG(D_CONFIG, "uuid:%s idx:%d gen:%d active:%d\n",
+ uuidp->uuid, index, gen, active);
- /* do_div(a, b) returns a % b, and a = a / b */
- stripe_size = do_div(ost_size, ssize);
+ if (gen <= 0) {
+ CERROR("request to add OBD %s with invalid generation: %d\n",
+ uuidp->uuid, gen);
+ RETURN(-EINVAL);
+ }
- if (stripe_size)
- lov_size = ost_size * swidth + stripeno * ssize + stripe_size;
- else
- lov_size = (ost_size - 1) * swidth + (stripeno + 1) * ssize;
+ mutex_down(&lov->lov_lock);
- return lov_size;
-}
+ if ((index < lov->lov_tgt_size) && (lov->lov_tgts[index] != NULL)) {
+ tgt = lov->lov_tgts[index];
+ CERROR("UUID %s already assigned at LOV target index %d\n",
+ obd_uuid2str(&tgt->ltd_uuid), index);
+ mutex_up(&lov->lov_lock);
+ RETURN(-EEXIST);
+ }
-static void lov_merge_attrs(struct obdo *tgt, struct obdo *src, obd_flag valid,
- struct lov_stripe_md *lsm, int stripeno, int *set)
-{
- if (*set) {
- if (valid & OBD_MD_FLSIZE) {
- /* this handles sparse files properly */
- obd_size lov_size;
+ 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;
- lov_size = lov_stripe_size(lsm, src->o_size, stripeno);
- if (lov_size > tgt->o_size)
- tgt->o_size = lov_size;
+ newsize = max(lov->lov_tgt_size, (__u32)2);
+ while (newsize < index + 1)
+ newsize = newsize << 1;
+ OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
+ if (newtgts == NULL) {
+ mutex_up(&lov->lov_lock);
+ RETURN(-ENOMEM);
}
- if (valid & OBD_MD_FLBLOCKS)
- tgt->o_blocks += src->o_blocks;
- if (valid & OBD_MD_FLBLKSZ)
- tgt->o_blksize += src->o_blksize;
- if (valid & OBD_MD_FLCTIME && tgt->o_ctime < src->o_ctime)
- tgt->o_ctime = src->o_ctime;
- if (valid & OBD_MD_FLMTIME && tgt->o_mtime < src->o_mtime)
- tgt->o_mtime = src->o_mtime;
- } else {
- obdo_cpy_md(tgt, src, valid);
- if (valid & OBD_MD_FLSIZE)
- tgt->o_size = lov_stripe_size(lsm,src->o_size,stripeno);
- *set = 1;
+
+ 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;
+ }
+
+ lov->lov_tgts = newtgts;
+ lov->lov_tgt_size = newsize;
+#ifdef __KERNEL__
+ smp_rmb();
+#endif
+ if (old)
+ OBD_FREE(old, sizeof(*old) * oldsize);
+
+ CDEBUG(D_CONFIG, "tgts: %p size: %d\n",
+ lov->lov_tgts, lov->lov_tgt_size);
}
-}
-/* the LOV expects oa->o_id to be set to the LOV object id */
-static int lov_create(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md **ea, struct obd_trans_info *oti)
-{
- struct obd_export *export = class_conn2export(conn);
- struct lov_obd *lov;
- struct lov_stripe_md *lsm;
- struct lov_oinfo *loi;
- struct obdo *tmp;
- unsigned ost_count, ost_idx;
- int set = 0, obj_alloc = 0;
- int rc = 0, i;
- ENTRY;
- LASSERT(ea);
+ OBD_ALLOC_PTR(tgt);
+ if (!tgt) {
+ mutex_up(&lov->lov_lock);
+ RETURN(-ENOMEM);
+ }
- if (!export)
- GOTO(out_exp, rc = -EINVAL);
+ memset(tgt, 0, sizeof(*tgt));
+ tgt->ltd_uuid = *uuidp;
+ /* XXX - add a sanity check on the generation number. */
+ tgt->ltd_gen = gen;
+ tgt->ltd_index = index;
+ tgt->ltd_activate = active;
+ lov->lov_tgts[index] = tgt;
+ if (index >= lov->desc.ld_tgt_count)
+ lov->desc.ld_tgt_count = index + 1;
+ mutex_up(&lov->lov_lock);
+
+ CDEBUG(D_CONFIG, "idx=%d ltd_gen=%d ld_tgt_count=%d\n",
+ index, tgt->ltd_gen, lov->desc.ld_tgt_count);
+
+ 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);
+ }
- lov = &export->exp_obd->u.lov;
+ lov_getref(obd);
- if (!lov->desc.ld_active_tgt_count)
- GOTO(out_exp, rc = -EIO);
+ rc = lov_connect_obd(obd, index, active, &lov->lov_ocd);
+ if (rc)
+ GOTO(out, rc);
- tmp = obdo_alloc();
- if (!tmp)
- GOTO(out_exp, rc = -ENOMEM);
+ rc = lov_notify(obd, tgt->ltd_exp->exp_obd,
+ active ? OBD_NOTIFY_ACTIVE : OBD_NOTIFY_INACTIVE,
+ (void *)&index);
- lsm = *ea;
+out:
+ if (rc) {
+ CERROR("add failed (%d), deleting %s\n", rc,
+ obd_uuid2str(&tgt->ltd_uuid));
+ lov_del_target(obd, index, 0, 0);
+ }
+ lov_putref(obd);
+ RETURN(rc);
+}
- if (!lsm) {
- rc = obd_alloc_memmd(conn, &lsm);
- if (rc < 0)
- GOTO(out_tmp, rc);
+/* Schedule a target for deletion */
+static int lov_del_target(struct obd_device *obd, __u32 index,
+ struct obd_uuid *uuidp, int gen)
+{
+ struct lov_obd *lov = &obd->u.lov;
+ int count = lov->desc.ld_tgt_count;
+ int rc = 0;
+ ENTRY;
- rc = 0;
- lsm->lsm_magic = LOV_MAGIC;
+ if (index >= count) {
+ CERROR("LOV target index %d >= number of LOV OBDs %d.\n",
+ index, count);
+ RETURN(-EINVAL);
}
- ost_count = lov->desc.ld_tgt_count;
+ lov_getref(obd);
- LASSERT(oa->o_valid & OBD_MD_FLID);
- lsm->lsm_object_id = oa->o_id;
- if (!lsm->lsm_stripe_size)
- lsm->lsm_stripe_size = lov->desc.ld_default_stripe_size;
+ if (!lov->lov_tgts[index]) {
+ CERROR("LOV target at index %d is not setup.\n", index);
+ GOTO(out, rc = -EINVAL);
+ }
- if (!*ea || lsm->lsm_stripe_offset >= ost_count) {
- get_random_bytes(&ost_idx, 2);
- ost_idx %= ost_count;
- } else
- ost_idx = lsm->lsm_stripe_offset;
+ 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",
+ lov_uuid2str(lov, index), index,
+ obd_uuid2str(uuidp));
+ GOTO(out, rc = -EINVAL);
+ }
- CDEBUG(D_INODE, "allocating %d subobjs for objid "LPX64" at idx %d\n",
- lsm->lsm_stripe_count, lsm->lsm_object_id, ost_idx);
+ 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);
- loi = lsm->lsm_oinfo;
- for (i = 0; i < ost_count; i++, ost_idx = (ost_idx + 1) % ost_count) {
- struct lov_stripe_md obj_md;
- struct lov_stripe_md *obj_mdp = &obj_md;
- int err;
+ lov->lov_tgts[index]->ltd_reap = 1;
+ lov->lov_death_row++;
+ /* we really delete it from lov_putref */
+out:
+ lov_putref(obd);
- if (lov->tgts[ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", ost_idx);
- continue;
- }
+ RETURN(rc);
+}
- /* create data objects with "parent" OA */
- memcpy(tmp, oa, sizeof(*tmp));
- /* XXX: LOV STACKING: use real "obj_mdp" sub-data */
- err = obd_create(&lov->tgts[ost_idx].conn, tmp, &obj_mdp, oti);
- if (err) {
- if (lov->tgts[ost_idx].active) {
- CERROR("error creating objid "LPX64" sub-object"
- " on OST idx %d/%d: rc = %d\n", oa->o_id,
- ost_idx, lsm->lsm_stripe_count, err);
- if (err > 0) {
- CERROR("obd_create returned invalid "
- "err %d\n", err);
- err = -EIO;
- }
- }
- if (!rc)
- rc = err;
- continue;
- }
- loi->loi_id = tmp->o_id;
- loi->loi_ost_idx = ost_idx;
- CDEBUG(D_INODE, "objid "LPX64" has subobj "LPX64" at idx %d\n",
- lsm->lsm_object_id, loi->loi_id, ost_idx);
-
- if (set == 0)
- lsm->lsm_stripe_offset = ost_idx;
- lov_merge_attrs(oa, tmp, OBD_MD_FLBLKSZ, lsm, obj_alloc, &set);
- ot_init(&loi->loi_dirty_ot_inline);
- loi->loi_dirty_ot = &loi->loi_dirty_ot_inline;
-
- ++obj_alloc;
- ++loi;
-
- /* If we have allocated enough objects, we are OK */
- if (obj_alloc == lsm->lsm_stripe_count)
- GOTO(out_done, rc = 0);
- }
-
- if (*ea != NULL) {
- CERROR("can't lstripe objid "LPX64": have %u want %u, rc %d\n",
- lsm->lsm_object_id, obj_alloc, lsm->lsm_stripe_count,rc);
- if (rc == 0)
- rc = -EFBIG;
- GOTO(out_cleanup, rc);
- } else {
- struct lov_stripe_md *lsm_new;
- /* XXX LOV STACKING call into osc for sizes */
- unsigned size = lov_stripe_md_size(obj_alloc);
-
- CERROR("reallocating LSM for objid "LPX64": old %u new %u\n",
- lsm->lsm_object_id, obj_alloc, lsm->lsm_stripe_count);
- OBD_ALLOC(lsm_new, size);
- if (!lsm_new)
- GOTO(out_cleanup, rc = -ENOMEM);
- memcpy(lsm_new, lsm, size);
- lsm_new->lsm_stripe_count = obj_alloc;
-
- /* XXX LOV STACKING call into osc for sizes */
- OBD_FREE(lsm, lov_stripe_md_size(lsm->lsm_stripe_count));
- lsm = lsm_new;
+/* We are holding lov_lock */
+static void __lov_del_obd(struct obd_device *obd, __u32 index)
+{
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_device *osc_obd;
+ struct lov_tgt_desc *tgt = lov->lov_tgts[index];
- rc = 0;
- }
- out_done:
- *ea = lsm;
+ LASSERT(tgt);
+ LASSERT(tgt->ltd_reap);
- out_tmp:
- obdo_free(tmp);
- out_exp:
- class_export_put(export);
- return rc;
+ osc_obd = class_exp2obd(tgt->ltd_exp);
- out_cleanup:
- while (obj_alloc-- > 0) {
- int err;
+ CDEBUG(D_CONFIG, "Removing tgt %s : %s\n",
+ lov_uuid2str(lov, index),
+ osc_obd ? osc_obd->obd_name : "<no obd>");
- --loi;
- /* destroy already created objects here */
- memcpy(tmp, oa, sizeof(*tmp));
- tmp->o_id = loi->loi_id;
- err = obd_destroy(&lov->tgts[loi->loi_ost_idx].conn, tmp, NULL,
- NULL);
- if (err)
- CERROR("Failed to uncreate objid "LPX64" subobj "
- LPX64" on OST idx %d: rc = %d\n",
- oa->o_id, loi->loi_id, loi->loi_ost_idx,
- err);
- }
- if (*ea == NULL)
- obd_free_memmd(conn, &lsm);
- goto out_tmp;
-}
-
-#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__; \
-})
-
-static int lov_destroy(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm, struct obd_trans_info *oti)
-{
- struct obdo tmp;
- struct obd_export *export = class_conn2export(conn);
- struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_file_handles *lfh = NULL;
- int rc = 0, i;
- ENTRY;
+ if (tgt->ltd_exp)
+ lov_disconnect_obd(obd, index);
- if (lsm_bad_magic(lsm))
- GOTO(out, rc = -EINVAL);
+ /* 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 (!export || !export->exp_obd)
- GOTO(out, rc = -ENODEV);
+ lov->lov_tgts[index] = NULL;
+ OBD_FREE_PTR(tgt);
- if (oa->o_valid & OBD_MD_FLHANDLE)
- lfh = lov_handle2lfh(obdo_handle(oa));
+ /* 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);
+}
- lov = &export->exp_obd->u.lov;
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
- int err;
- if (lov->tgts[loi->loi_ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- /* Orphan clean up will (someday) fix this up. */
- continue;
- }
+void lov_fix_desc(struct lov_desc *desc)
+{
+ if (desc->ld_default_stripe_size < PTLRPC_MAX_BRW_SIZE) {
+ LCONSOLE_WARN("Increasing default stripe size to min %u\n",
+ PTLRPC_MAX_BRW_SIZE);
+ desc->ld_default_stripe_size = PTLRPC_MAX_BRW_SIZE;
+ } else if (desc->ld_default_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
+ desc->ld_default_stripe_size &= ~(LOV_MIN_STRIPE_SIZE - 1);
+ LCONSOLE_WARN("Changing default stripe size to "LPU64" (a "
+ "multiple of %u)\n",
+ desc->ld_default_stripe_size,LOV_MIN_STRIPE_SIZE);
+ }
- memcpy(&tmp, oa, sizeof(tmp));
- tmp.o_id = loi->loi_id;
- if (lfh)
- memcpy(obdo_handle(&tmp), lfh->lfh_och + i,
- FD_OSTDATA_SIZE);
- else
- tmp.o_valid &= ~OBD_MD_FLHANDLE;
- err = obd_destroy(&lov->tgts[loi->loi_ost_idx].conn, &tmp,
- NULL, NULL);
- if (err && lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: destroying objid "LPX64" subobj "
- LPX64" on OST idx %d: rc = %d\n",
- oa->o_id, loi->loi_id, loi->loi_ost_idx, err);
- if (!rc)
- rc = err;
- }
+ if (desc->ld_default_stripe_count == 0)
+ desc->ld_default_stripe_count = 1;
+
+ /* from lov_setstripe */
+ if ((desc->ld_pattern != 0) &&
+ (desc->ld_pattern != LOV_PATTERN_RAID0)) {
+ LCONSOLE_WARN("Unknown stripe pattern: %#x\n",desc->ld_pattern);
+ desc->ld_pattern = 0;
}
- if (lfh != NULL)
- lov_lfh_put(lfh);
- EXIT;
- out:
- class_export_put(export);
- return rc;
+
+ if (desc->ld_qos_maxage == 0)
+ desc->ld_qos_maxage = QOS_DEFAULT_MAXAGE;
}
-static int lov_getattr(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm)
+static int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
{
- struct obdo tmp;
- struct obd_export *export = class_conn2export(conn);
- struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_file_handles *lfh = NULL;
- int i, rc = 0, set = 0;
+ struct lprocfs_static_vars lvars;
+ struct lov_desc *desc;
+ struct lov_obd *lov = &obd->u.lov;
+ int count;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out, rc = -EINVAL);
-
- if (!export || !export->exp_obd)
- GOTO(out, rc = -ENODEV);
+ if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
+ CERROR("LOV setup requires a descriptor\n");
+ RETURN(-EINVAL);
+ }
- lov = &export->exp_obd->u.lov;
+ desc = (struct lov_desc *)lustre_cfg_buf(lcfg, 1);
- if (oa->o_valid & OBD_MD_FLHANDLE)
- lfh = lov_handle2lfh(obdo_handle(oa));
-
- CDEBUG(D_INFO, "objid "LPX64": %ux%u byte stripes\n",
- lsm->lsm_object_id, lsm->lsm_stripe_count, lsm->lsm_stripe_size);
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
- int err;
+ 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 (lov->tgts[loi->loi_ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- continue;
+ 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);
}
+ }
- CDEBUG(D_INFO, "objid "LPX64"[%d] has subobj "LPX64" at idx "
- "%u\n", oa->o_id, i, loi->loi_id, loi->loi_ost_idx);
- /* create data objects with "parent" OA */
- memcpy(&tmp, oa, sizeof(tmp));
- tmp.o_id = loi->loi_id;
- if (lfh)
- memcpy(obdo_handle(&tmp), lfh->lfh_och + i,
- FD_OSTDATA_SIZE);
- else
- tmp.o_valid &= ~OBD_MD_FLHANDLE;
+ lov_fix_desc(desc);
- err = obd_getattr(&lov->tgts[loi->loi_ost_idx].conn, &tmp,NULL);
- if (err) {
- if (lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: getattr objid "LPX64" subobj "
- LPX64" on OST idx %d: rc = %d\n",
- oa->o_id, loi->loi_id, loi->loi_ost_idx,
- err);
- GOTO(out, rc = err);
- }
- } else {
- lov_merge_attrs(oa, &tmp, tmp.o_valid, lsm, i, &set);
+ /* Because of 64-bit divide/mod operations only work with a 32-bit
+ * divisor in a 32-bit kernel, we cannot support a stripe width
+ * of 4GB or larger on 32-bit CPUs. */
+ count = desc->ld_default_stripe_count;
+ if ((count > 0 ? count : desc->ld_tgt_count) *
+ desc->ld_default_stripe_size > 0xffffffff) {
+ CERROR("LOV: stripe width "LPU64"x%u > 4294967295 bytes\n",
+ desc->ld_default_stripe_size, count);
+ RETURN(-EINVAL);
+ }
+
+ desc->ld_active_tgt_count = 0;
+ lov->desc = *desc;
+ lov->lov_tgt_size = 0;
+ sema_init(&lov->lov_lock, 1);
+ atomic_set(&lov->lov_refcount, 0);
+ INIT_LIST_HEAD(&lov->lov_qos.lq_oss_list);
+ init_rwsem(&lov->lov_qos.lq_rw_sem);
+ lov->lov_qos.lq_dirty = 1;
+ lov->lov_qos.lq_dirty_rr = 1;
+ lov->lov_qos.lq_reset = 1;
+ /* Default priority is toward free space balance */
+ lov->lov_qos.lq_prio_free = 232;
+
+ lprocfs_init_vars(lov, &lvars);
+ lprocfs_obd_setup(obd, lvars.obd_vars);
+#ifdef LPROCFS
+ {
+ cfs_proc_dir_entry_t *entry;
+
+ entry = create_proc_entry("target_obd", 0444,
+ obd->obd_proc_entry);
+ if (entry != NULL) {
+ entry->proc_fops = &lov_proc_target_fops;
+ entry->data = obd;
}
}
- if (!set)
- rc = -EIO;
- GOTO(out, rc);
- out:
- if (lfh != NULL)
- lov_lfh_put(lfh);
- class_export_put(export);
- return rc;
+#endif
+
+ RETURN(0);
}
-static int lov_getattr_interpret(struct ptlrpc_request_set *rqset,
- struct lov_getattr_async_args *aa, int rc)
-{
- struct lov_stripe_md *lsm = aa->aa_lsm;
- struct obdo *oa = aa->aa_oa;
- struct obdo *obdos = aa->aa_stripe_oas;
- struct lov_oinfo *loi;
- int i;
- int set = 0;
+static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
+{
+ int rc = 0;
ENTRY;
- if (rc == 0) {
- /* NB all stripe requests succeeded to get here */
-
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count;
- i++,loi++) {
- if (obdos[i].o_valid == 0) /* inactive stripe */
+ switch (stage) {
+ case OBD_CLEANUP_EARLY: {
+ struct lov_obd *lov = &obd->u.lov;
+ int i;
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
continue;
-
- lov_merge_attrs(oa, &obdos[i], obdos[i].o_valid, lsm,
- i, &set);
+ obd_precleanup(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
+ OBD_CLEANUP_EARLY);
}
+ break;
+ }
+ case OBD_CLEANUP_EXPORTS:
+ break;
+ case OBD_CLEANUP_SELF_EXP:
+ rc = obd_llog_finish(obd, 0);
+ if (rc != 0)
+ CERROR("failed to cleanup llogging subsystems\n");
+ break;
+ case OBD_CLEANUP_OBD:
+ break;
+ }
+ RETURN(rc);
+}
- if (!set) {
- CERROR ("No stripes had valid attrs\n");
- rc = -EIO;
+static int lov_cleanup(struct obd_device *obd)
+{
+ struct lov_obd *lov = &obd->u.lov;
+
+ lprocfs_obd_cleanup(obd);
+ if (lov->lov_tgts) {
+ int i;
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (lov->lov_tgts[i]) {
+ /* Inactive targets may never have connected */
+ if (lov->lov_tgts[i]->ltd_active ||
+ atomic_read(&lov->lov_refcount))
+ /* We should never get here - these
+ should have been removed in the
+ disconnect. */
+ CERROR("lov tgt %d not cleaned!"
+ " deathrow=%d, lovrc=%d\n",
+ i, lov->lov_death_row,
+ atomic_read(&lov->lov_refcount));
+ lov_del_target(obd, i, 0, 0);
+ }
}
+ OBD_FREE(lov->lov_tgts, sizeof(*lov->lov_tgts) *
+ lov->lov_tgt_size);
+ lov->lov_tgt_size = 0;
}
- OBD_FREE (obdos, lsm->lsm_stripe_count * sizeof (*obdos));
- RETURN (rc);
+ if (lov->lov_qos.lq_rr_size)
+ OBD_FREE(lov->lov_qos.lq_rr_array, lov->lov_qos.lq_rr_size);
+
+ RETURN(0);
}
-static int lov_getattr_async (struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm,
- struct ptlrpc_request_set *rqset)
+static int lov_process_config(struct obd_device *obd, obd_count len, void *buf)
{
- struct obdo *obdos;
- struct obd_export *export = class_conn2export(conn);
- struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_file_handles *lfh = NULL;
- struct lov_getattr_async_args *aa;
- int i;
- int set = 0;
+ struct lustre_cfg *lcfg = buf;
+ struct obd_uuid obd_uuid;
+ int cmd;
int rc = 0;
ENTRY;
- if (!lsm) {
- CERROR("LOV requires striping ea\n");
- GOTO(out, rc = -EINVAL);
+ 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", &index) != 1)
+ GOTO(out, rc = -EINVAL);
+ if (sscanf(lustre_cfg_buf(lcfg, 3), "%d", &gen) != 1)
+ GOTO(out, rc = -EINVAL);
+ if (cmd == LCFG_LOV_ADD_OBD)
+ rc = lov_add_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_target(obd, index, &obd_uuid, gen);
+ GOTO(out, rc);
}
+ case LCFG_PARAM: {
+ struct lprocfs_static_vars lvars;
+ struct lov_desc *desc = &(obd->u.lov.desc);
- if (lsm->lsm_magic != LOV_MAGIC) {
- CERROR("LOV striping magic bad %#x != %#x\n",
- lsm->lsm_magic, LOV_MAGIC);
+ if (!desc)
+ GOTO(out, rc = -EINVAL);
+
+ lprocfs_init_vars(lov, &lvars);
+
+ rc = class_process_proc_param(PARAM_LOV, lvars.obd_vars,
+ lcfg, obd);
+ GOTO(out, rc);
+ }
+ default: {
+ CERROR("Unknown command: %d\n", lcfg->lcfg_command);
GOTO(out, rc = -EINVAL);
+
+ }
}
+out:
+ RETURN(rc);
+}
- if (!export || !export->exp_obd)
- GOTO(out, rc = -ENODEV);
+#ifndef log2
+#define log2(n) ffz(~(n))
+#endif
+
+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;
+ int rc = 0, i;
+ ENTRY;
+
+ LASSERT(src_oa->o_valid & OBD_MD_FLFLAGS &&
+ src_oa->o_flags == OBD_FL_DELORPHAN);
lov = &export->exp_obd->u.lov;
- OBD_ALLOC (obdos, lsm->lsm_stripe_count * sizeof (*obdos));
- if (obdos == NULL)
- GOTO (out, rc = -ENOMEM);
+ OBDO_ALLOC(tmp_oa);
+ if (tmp_oa == NULL)
+ RETURN(-ENOMEM);
- if (oa->o_valid & OBD_MD_FLHANDLE)
- lfh = lov_handle2lfh(obdo_handle(oa));
+ if (src_oa->o_valid & OBD_MD_FLINLINE) {
+ ost_uuid = (struct obd_uuid *)src_oa->o_inline;
+ CDEBUG(D_HA, "clearing orphans only for %s\n",
+ ost_uuid->uuid);
+ }
- CDEBUG(D_INFO, "objid "LPX64": %ux%u byte stripes\n",
- lsm->lsm_object_id, lsm->lsm_stripe_count, lsm->lsm_stripe_size);
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
+ lov_getref(export->exp_obd);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ struct lov_stripe_md obj_md;
+ struct lov_stripe_md *obj_mdp = &obj_md;
+ struct lov_tgt_desc *tgt;
int err;
- if (lov->tgts[loi->loi_ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- /* leaves obdos[i].obd_valid unset */
+ 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->lov_tgts[i]->ltd_active == 0 && ost_uuid == NULL) {
+ CDEBUG(D_HA, "lov idx %d inactive\n", i);
continue;
}
- CDEBUG(D_INFO, "objid "LPX64"[%d] has subobj "LPX64" at idx "
- "%u\n", oa->o_id, i, loi->loi_id, loi->loi_ost_idx);
- /* create data objects with "parent" OA */
- memcpy(&obdos[i], oa, sizeof(obdos[i]));
- obdos[i].o_id = loi->loi_id;
- if (lfh)
- memcpy(obdo_handle(&obdos[i]), lfh->lfh_och + i,
- FD_OSTDATA_SIZE);
- else
- obdos[i].o_valid &= ~OBD_MD_FLHANDLE;
+ if (ost_uuid && !obd_uuid_equals(ost_uuid, &tgt->ltd_uuid))
+ continue;
- err = obd_getattr_async (&lov->tgts[loi->loi_ost_idx].conn,
- &obdos[i], NULL, rqset);
- if (err) {
- CERROR("error: getattr objid "LPX64" subobj "
- LPX64" on OST idx %d: rc = %d\n",
- oa->o_id, loi->loi_id, loi->loi_ost_idx,
- err);
- GOTO(out_obdos, rc = err);
+ CDEBUG(D_CONFIG,"Clear orphans for %d:%s\n", i,
+ obd_uuid2str(ost_uuid));
+
+ memcpy(tmp_oa, src_oa, sizeof(*tmp_oa));
+
+ LASSERT(lov->lov_tgts[i]->ltd_exp);
+ /* XXX: LOV STACKING: use real "obj_mdp" sub-data */
+ 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 (ost_uuid)
+ break;
+ }
+ lov_putref(export->exp_obd);
+
+ OBDO_FREE(tmp_oa);
+ RETURN(rc);
+}
+
+static int lov_recreate(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md **ea, struct obd_trans_info *oti)
+{
+ struct lov_stripe_md *obj_mdp, *lsm;
+ struct lov_obd *lov = &exp->exp_obd->u.lov;
+ unsigned ost_idx;
+ int rc, i;
+ ENTRY;
+
+ LASSERT(src_oa->o_valid & OBD_MD_FLFLAGS &&
+ src_oa->o_flags & OBD_FL_RECREATE_OBJS);
+
+ OBD_ALLOC(obj_mdp, sizeof(*obj_mdp));
+ if (obj_mdp == NULL)
+ RETURN(-ENOMEM);
+
+ ost_idx = src_oa->o_nlink;
+ lsm = *ea;
+ if (lsm == NULL)
+ GOTO(out, rc = -EINVAL);
+ if (ost_idx >= lov->desc.ld_tgt_count ||
+ !lov->lov_tgts[ost_idx])
+ GOTO(out, rc = -EINVAL);
+
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ if (lsm->lsm_oinfo[i]->loi_ost_idx == ost_idx) {
+ if (lsm->lsm_oinfo[i]->loi_id != src_oa->o_id)
+ GOTO(out, rc = -EINVAL);
+ break;
}
- set = 1;
- }
- if (!set)
- GOTO (out_obdos, rc = -EIO);
-
- LASSERT (rqset->set_interpret == NULL);
- rqset->set_interpret = lov_getattr_interpret;
- LASSERT (sizeof (rqset->set_args) >= sizeof (*aa));
- aa = (struct lov_getattr_async_args *)&rqset->set_args;
- aa->aa_lsm = lsm;
- aa->aa_oa = oa;
- aa->aa_stripe_oas = obdos;
- GOTO (out, rc = 0);
-
- out_obdos:
- OBD_FREE (obdos, lsm->lsm_stripe_count * sizeof (*obdos));
- out:
- if (lfh != NULL)
- lov_lfh_put(lfh);
- class_export_put(export);
- RETURN (rc);
+ }
+ if (i == lsm->lsm_stripe_count)
+ GOTO(out, rc = -EINVAL);
+
+ 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);
}
-static int lov_setattr(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm, struct obd_trans_info *oti)
+/* 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,
+ struct lov_stripe_md **ea, struct obd_trans_info *oti)
{
- struct obdo *tmp;
- struct obd_export *export = class_conn2export(conn);
struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_file_handles *lfh = NULL;
- int rc = 0, i, set = 0;
+ struct obd_info oinfo;
+ struct lov_request_set *set = NULL;
+ struct lov_request *req;
+ struct obd_statfs osfs;
+ __u64 maxage;
+ int rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out, rc = -EINVAL);
+ LASSERT(ea != NULL);
+ if (exp == NULL)
+ RETURN(-EINVAL);
+
+ if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
+ src_oa->o_flags == OBD_FL_DELORPHAN) {
+ rc = lov_clear_orphans(exp, src_oa, ea, oti);
+ RETURN(rc);
+ }
+
+ lov = &exp->exp_obd->u.lov;
+ if (!lov->desc.ld_active_tgt_count)
+ RETURN(-EIO);
- if (!export || !export->exp_obd)
- GOTO(out, rc = -ENODEV);
+ /* Recreate a specific object id at the given OST index */
+ if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
+ (src_oa->o_flags & OBD_FL_RECREATE_OBJS)) {
+ rc = lov_recreate(exp, src_oa, ea, oti);
+ RETURN(rc);
+ }
- /* size changes should go through punch and not setattr */
- LASSERT(!(oa->o_valid & OBD_MD_FLSIZE));
+ maxage = cfs_time_shift_64(-lov->desc.ld_qos_maxage);
+ obd_statfs_rqset(exp->exp_obd, &osfs, maxage);
- /* for now, we only expect mtime updates here */
- LASSERT(!(oa->o_valid & ~(OBD_MD_FLID |OBD_MD_FLTYPE |OBD_MD_FLMTIME)));
+ rc = lov_prep_create_set(exp, &oinfo, ea, src_oa, oti, &set);
+ if (rc)
+ RETURN(rc);
- tmp = obdo_alloc();
- if (!tmp)
- GOTO(out, rc = -ENOMEM);
+ list_for_each_entry(req, &set->set_list, rq_link) {
+ /* XXX: LOV STACKING: use real "obj_mdp" sub-data */
+ rc = obd_create(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ req->rq_oi.oi_oa, &req->rq_oi.oi_md, oti);
+ lov_update_create_set(set, req, rc);
+ }
+ rc = lov_fini_create_set(set, ea);
+ RETURN(rc);
+}
- if (oa->o_valid & OBD_MD_FLHANDLE)
- lfh = lov_handle2lfh(obdo_handle(oa));
+#define ASSERT_LSM_MAGIC(lsmp) \
+do { \
+ LASSERT((lsmp) != NULL); \
+ LASSERTF(((lsmp)->lsm_magic == LOV_MAGIC || \
+ (lsmp)->lsm_magic == LOV_MAGIC_JOIN), "%p->lsm_magic=%x\n", \
+ (lsmp), (lsmp)->lsm_magic); \
+} while (0)
+
+static int lov_destroy(struct obd_export *exp, struct obdo *oa,
+ struct lov_stripe_md *lsm, struct obd_trans_info *oti,
+ struct obd_export *md_exp)
+{
+ struct lov_request_set *set;
+ struct obd_info oinfo;
+ struct lov_request *req;
+ struct list_head *pos;
+ struct lov_obd *lov;
+ int rc = 0, err;
+ ENTRY;
- lov = &export->exp_obd->u.lov;
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
- int err;
+ ASSERT_LSM_MAGIC(lsm);
- if (lov->tgts[loi->loi_ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- continue;
- }
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
- obdo_cpy_md(tmp, oa, oa->o_valid);
+ if (oa->o_valid & OBD_MD_FLCOOKIE) {
+ LASSERT(oti);
+ LASSERT(oti->oti_logcookies);
+ }
- if (lfh)
- memcpy(obdo_handle(tmp), lfh->lfh_och + i,
- FD_OSTDATA_SIZE);
- else
- tmp->o_valid &= ~OBD_MD_FLHANDLE;
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_destroy_set(exp, &oinfo, oa, lsm, oti, &set);
+ if (rc)
+ RETURN(rc);
+
+ list_for_each (pos, &set->set_list) {
+ int err;
+ req = list_entry(pos, struct lov_request, rq_link);
- tmp->o_id = loi->loi_id;
+ if (oa->o_valid & OBD_MD_FLCOOKIE)
+ oti->oti_logcookies = set->set_cookies + req->rq_stripe;
- err = obd_setattr(&lov->tgts[loi->loi_ost_idx].conn, tmp,
- NULL, NULL);
+ err = obd_destroy(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ req->rq_oi.oi_oa, NULL, oti, NULL);
+ err = lov_update_common_set(set, req, err);
if (err) {
- if (lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: setattr objid "LPX64" subobj "
- LPX64" on OST idx %d: rc = %d\n",
- oa->o_id, loi->loi_id, loi->loi_ost_idx,
- err);
- if (!rc)
- rc = err;
- }
- } else
- set = 1;
- }
- obdo_free(tmp);
- if (!set && !rc)
- rc = -EIO;
- if (lfh != NULL)
- lov_lfh_put(lfh);
- GOTO(out, rc);
- out:
- class_export_put(export);
- return rc;
+ CERROR("error: destroying objid "LPX64" subobj "
+ 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;
+ }
+ }
+
+ if (rc == 0) {
+ LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
+ rc = lsm_op_find(lsm->lsm_magic)->lsm_destroy(lsm, oa, md_exp);
+ }
+ err = lov_fini_destroy_set(set);
+ RETURN(rc ? rc : err);
}
-static int lov_open(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm, struct obd_trans_info *oti,
- struct obd_client_handle *och)
+static int lov_getattr(struct obd_export *exp, struct obd_info *oinfo)
{
- struct obdo *tmp; /* on the heap here, on the stack in lov_close? */
- struct obd_export *export = class_conn2export(conn);
+ struct lov_request_set *set;
+ struct lov_request *req;
+ struct list_head *pos;
struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_file_handles *lfh = NULL;
- int set = 0, rc = 0, i;
+ int err = 0, rc = 0;
ENTRY;
- LASSERT(och != NULL);
- if (lsm_bad_magic(lsm))
- GOTO(out_exp, rc = -EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
- if (!export || !export->exp_obd)
- GOTO(out_exp, rc = -ENODEV);
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
- tmp = obdo_alloc();
- if (!tmp)
- GOTO(out_exp, rc = -ENOMEM);
+ lov = &exp->exp_obd->u.lov;
- lfh = lov_lfh_new();
- if (lfh == NULL)
- GOTO(out_tmp, rc = -ENOMEM);
- OBD_ALLOC(lfh->lfh_och, lsm->lsm_stripe_count * sizeof *och);
- if (!lfh->lfh_och)
- GOTO(out_lfh, rc = -ENOMEM);
+ rc = lov_prep_getattr_set(exp, oinfo, &set);
+ if (rc)
+ RETURN(rc);
- lov = &export->exp_obd->u.lov;
- oa->o_size = 0;
- oa->o_blocks = 0;
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
- if (lov->tgts[loi->loi_ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- continue;
- }
+ list_for_each (pos, &set->set_list) {
+ req = list_entry(pos, struct lov_request, rq_link);
- /* create data objects with "parent" OA */
- memcpy(tmp, oa, sizeof(*tmp));
- tmp->o_id = loi->loi_id;
+ 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);
- rc = obd_open(&lov->tgts[loi->loi_ost_idx].conn, tmp,
- NULL, NULL, lfh->lfh_och + i);
- if (rc) {
- if (!lov->tgts[loi->loi_ost_idx].active) {
- rc = 0;
- continue;
- }
- CERROR("error: open objid "LPX64" subobj "LPX64
- " on OST idx %d: rc = %d\n",
- oa->o_id, lsm->lsm_oinfo[i].loi_id,
- loi->loi_ost_idx, rc);
- goto out_handles;
+ 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",
+ oinfo->oi_oa->o_id, req->rq_oi.oi_oa->o_id,
+ req->rq_idx, err);
+ break;
}
-
- lov_merge_attrs(oa, tmp, tmp->o_valid, lsm, i, &set);
}
- lfh->lfh_count = lsm->lsm_stripe_count;
- och->och_fh.cookie = lfh->lfh_handle.h_cookie;
- obdo_handle(oa)->cookie = lfh->lfh_handle.h_cookie;
- oa->o_valid |= OBD_MD_FLHANDLE;
+ rc = lov_fini_getattr_set(set);
+ if (err)
+ rc = err;
+ RETURN(rc);
+}
- /* llfh refcount transfers to list */
- spin_lock(&export->exp_lov_data.led_lock);
- list_add(&lfh->lfh_list, &export->exp_lov_data.led_open_head);
- spin_unlock(&export->exp_lov_data.led_lock);
+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;
- GOTO(out_tmp, rc);
- out_tmp:
- obdo_free(tmp);
- out_exp:
- class_export_put(export);
- return rc;
+ /* don't do attribute merge if this aysnc op failed */
+ if (rc)
+ lovset->set_completes = 0;
+ err = lov_fini_getattr_set(lovset);
+ RETURN(rc ? rc : err);
+}
- out_handles:
- for (i--, loi = &lsm->lsm_oinfo[i]; i >= 0; i--, loi--) {
- int err;
+static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
+ struct ptlrpc_request_set *rqset)
+{
+ struct lov_request_set *lovset;
+ struct lov_obd *lov;
+ struct list_head *pos;
+ struct lov_request *req;
+ int rc = 0, err;
+ ENTRY;
- if (lov->tgts[loi->loi_ost_idx].active == 0)
- continue;
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
+
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
+
+ lov = &exp->exp_obd->u.lov;
- memcpy(tmp, oa, sizeof(*tmp));
- tmp->o_id = loi->loi_id;
- memcpy(obdo_handle(tmp), lfh->lfh_och + i, FD_OSTDATA_SIZE);
+ rc = lov_prep_getattr_set(exp, oinfo, &lovset);
+ if (rc)
+ RETURN(rc);
+
+ 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);
- err = obd_close(&lov->tgts[loi->loi_ost_idx].conn, tmp,
- NULL, NULL);
- if (err && lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: closing objid "LPX64" subobj "LPX64
- " on OST idx %d after open error: rc=%d\n",
- oa->o_id, loi->loi_id, loi->loi_ost_idx, err);
+ 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", 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",
+ oinfo->oi_oa->o_id, req->rq_oi.oi_oa->o_id,
+ req->rq_idx, rc);
+ GOTO(out, rc);
}
}
- OBD_FREE(lfh->lfh_och, lsm->lsm_stripe_count * FD_OSTDATA_SIZE);
- out_lfh:
- lov_lfh_destroy(lfh);
- lov_lfh_put(lfh);
- goto out_tmp;
+ if (!list_empty(&rqset->set_requests)) {
+ LASSERT(rc == 0);
+ LASSERT (rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_getattr_interpret;
+ rqset->set_arg = (void *)lovset;
+ RETURN(rc);
+ }
+out:
+ if (rc)
+ lovset->set_completes = 0;
+ err = lov_fini_getattr_set(lovset);
+ RETURN(rc ? rc : err);
}
-static int lov_close(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm, struct obd_trans_info *oti)
+static int lov_setattr(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_trans_info *oti)
{
- struct obdo tmp;
- struct obd_export *export = class_conn2export(conn);
+ struct lov_request_set *set;
struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_file_handles *lfh = NULL;
- int rc = 0, i;
+ struct list_head *pos;
+ struct lov_request *req;
+ int err = 0, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out, rc = -EINVAL);
-
- if (!export || !export->exp_obd)
- GOTO(out, rc = -ENODEV);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
- if (oa->o_valid & OBD_MD_FLHANDLE)
- lfh = lov_handle2lfh(obdo_handle(oa));
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
- lov = &export->exp_obd->u.lov;
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
- int err;
+ /* for now, we only expect the following updates here */
+ LASSERT(!(oinfo->oi_oa->o_valid & ~(OBD_MD_FLID | OBD_MD_FLTYPE |
+ OBD_MD_FLMODE | OBD_MD_FLATIME |
+ OBD_MD_FLMTIME | OBD_MD_FLCTIME |
+ OBD_MD_FLFLAGS | OBD_MD_FLSIZE |
+ OBD_MD_FLGROUP | OBD_MD_FLUID |
+ OBD_MD_FLGID | OBD_MD_FLINLINE |
+ OBD_MD_FLFID | OBD_MD_FLGENER)));
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_setattr_set(exp, oinfo, oti, &set);
+ if (rc)
+ RETURN(rc);
- /* create data objects with "parent" OA */
- memcpy(&tmp, oa, sizeof(tmp));
- tmp.o_id = loi->loi_id;
- if (lfh)
- memcpy(obdo_handle(&tmp), lfh->lfh_och + i,
- FD_OSTDATA_SIZE);
- else
- tmp.o_valid &= ~OBD_MD_FLHANDLE;
+ list_for_each (pos, &set->set_list) {
+ req = list_entry(pos, struct lov_request, rq_link);
- err = obd_close(&lov->tgts[loi->loi_ost_idx].conn, &tmp,
- NULL, NULL);
+ 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) {
- if (lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: close objid "LPX64" subobj "LPX64
- " on OST idx %d: rc = %d\n", oa->o_id,
- loi->loi_id, loi->loi_ost_idx, err);
- }
+ 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, err);
if (!rc)
rc = err;
}
}
- if (lfh != NULL) {
- spin_lock(&export->exp_lov_data.led_lock);
- list_del(&lfh->lfh_list);
- spin_unlock(&export->exp_lov_data.led_lock);
- lov_lfh_put(lfh); /* drop the reference owned by the list */
-
- OBD_FREE(lfh->lfh_och, lsm->lsm_stripe_count * FD_OSTDATA_SIZE);
- lov_lfh_destroy(lfh);
- lov_lfh_put(lfh); /* balance handle2lfh above */
- }
- GOTO(out, rc);
- out:
- class_export_put(export);
- return rc;
+ err = lov_fini_setattr_set(set);
+ if (!rc)
+ rc = err;
+ RETURN(rc);
}
-#ifndef log2
-#define log2(n) ffz(~(n))
-#endif
+static int lov_setattr_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
+{
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ int err;
+ ENTRY;
-/* we have an offset in file backed by an lov and want to find out where
- * that offset lands in our given stripe of the file. for the easy
- * case where the offset is within the stripe, we just have to scale the
- * offset down to make it relative to the stripe instead of the lov.
- *
- * the harder case is what to do when the offset doesn't intersect the
- * stripe. callers will want start offsets clamped ahead to the start
- * of the nearest stripe in the file. end offsets similarly clamped to the
- * nearest ending byte of a stripe in the file:
- *
- * all this function does is move offsets to the nearest region of the
- * stripe, and it does its work "mod" the full length of all the stripes.
- * consider a file with 3 stripes:
- *
- * S E
- * ---------------------------------------------------------------------
- * | 0 | 1 | 2 | 0 | 1 | 2 |
- * ---------------------------------------------------------------------
- *
- * to find stripe 1's offsets for S and E, it divides by the full stripe
- * width and does its math in the context of a single set of stripes:
- *
- * S E
- * -----------------------------------
- * | 0 | 1 | 2 |
- * -----------------------------------
- *
- * it'll notice that E is outside stripe 1 and clamp it to the end of the
- * stripe, then multiply it back out by lov_off to give the real offsets in
- * the stripe:
- *
- * S E
- * ---------------------------------------------------------------------
- * | 1 | 1 | 1 | 1 | 1 | 1 |
- * ---------------------------------------------------------------------
- *
- * it would have done similarly and pulled S forward to the start of a 1
- * stripe if, say, S had landed in a 0 stripe.
- *
- * this rounding isn't always correct. consider an E lov offset that lands
- * on a 0 stripe, the "mod stripe width" math will pull it forward to the
- * start of a 1 stripe, when in fact it wanted to be rounded back to the end
- * of a previous 1 stripe. this logic is handled by callers and this is why:
- *
- * this function returns < 0 when the offset was "before" the stripe and
- * was moved forward to the start of the stripe in question; 0 when it
- * falls in the stripe and no shifting was done; > 0 when the offset
- * was outside the stripe and was pulled back to its final byte. */
-static int lov_stripe_offset(struct lov_stripe_md *lsm, obd_off lov_off,
- int stripeno, obd_off *obd_off)
-{
- unsigned long ssize = lsm->lsm_stripe_size;
- unsigned long swidth = ssize * lsm->lsm_stripe_count;
- unsigned long stripe_off, this_stripe;
- int ret = 0;
-
- if (lov_off == OBD_OBJECT_EOF) {
- *obd_off = OBD_OBJECT_EOF;
- return 0;
- }
-
- /* do_div(a, b) returns a % b, and a = a / b */
- stripe_off = do_div(lov_off, swidth);
-
- this_stripe = stripeno * ssize;
- if (stripe_off < this_stripe) {
- stripe_off = 0;
- ret = -1;
- } else {
- stripe_off -= this_stripe;
+ if (rc)
+ lovset->set_completes = 0;
+ err = lov_fini_setattr_set(lovset);
+ RETURN(rc ? rc : err);
+}
- if (stripe_off >= ssize) {
- stripe_off = ssize;
- ret = 1;
- }
+/* If @oti is given, the request goes from MDS and responses from OSTs are not
+ needed. Otherwise, a client is waiting for responses. */
+static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_trans_info *oti,
+ struct ptlrpc_request_set *rqset)
+{
+ struct lov_request_set *set;
+ struct lov_request *req;
+ struct list_head *pos;
+ struct lov_obd *lov;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE) {
+ LASSERT(oti);
+ LASSERT(oti->oti_logcookies);
}
- *obd_off = lov_off * ssize + stripe_off;
- return ret;
-}
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
+
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_setattr_set(exp, oinfo, oti, &set);
+ if (rc)
+ RETURN(rc);
+
+ 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);
+
+ list_for_each (pos, &set->set_list) {
+ req = list_entry(pos, struct lov_request, rq_link);
-/* given an extent in an lov and a stripe, calculate the extent of the stripe
- * that is contained within the lov extent. this returns true if the given
- * stripe does intersect with the lov extent. */
-static int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
- obd_off start, obd_off end,
- obd_off *obd_start, obd_off *obd_end)
-{
- int start_side, end_side;
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
+ oti->oti_logcookies = set->set_cookies + req->rq_stripe;
- start_side = lov_stripe_offset(lsm, start, stripeno, obd_start);
- end_side = lov_stripe_offset(lsm, end, stripeno, obd_end);
+ 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);
- CDEBUG(D_INODE, "["LPU64"->"LPU64"] -> [(%d) "LPU64"->"LPU64" (%d)]\n",
- start, end, start_side, *obd_start, *obd_end, end_side);
+ rc = obd_setattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi, oti, rqset);
+ if (rc) {
+ 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;
+ }
+ }
- /* this stripe doesn't intersect the file extent when neither
- * start or the end intersected the stripe and obd_start and
- * obd_end got rounded up to the save value. */
- if (start_side != 0 && end_side != 0 && *obd_start == *obd_end)
- return 0;
+ /* If we are not waiting for responses on async requests, return. */
+ if (rc || !rqset || list_empty(&rqset->set_requests)) {
+ int err;
+ if (rc)
+ set->set_completes = 0;
+ err = lov_fini_setattr_set(set);
+ RETURN(rc ? rc : err);
+ }
- /* as mentioned in the lov_stripe_offset commentary, end
- * might have been shifted in the wrong direction. This
- * happens when an end offset is before the stripe when viewed
- * through the "mod stripe size" math. we detect it being shifted
- * in the wrong direction and touch it up.
- * interestingly, this can't underflow since end must be > start
- * if we passed through the previous check.
- * (should we assert for that somewhere?) */
- if (end_side != 0)
- (*obd_end)--;
+ LASSERT(rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_setattr_interpret;
+ rqset->set_arg = (void *)set;
- return 1;
+ RETURN(0);
}
-/* compute which stripe number "lov_off" will be written into */
-static int lov_stripe_number(struct lov_stripe_md *lsm, obd_off lov_off)
+static int lov_punch_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
{
- unsigned long ssize = lsm->lsm_stripe_size;
- unsigned long swidth = ssize * lsm->lsm_stripe_count;
- unsigned long stripe_off;
-
- stripe_off = do_div(lov_off, swidth);
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ int err;
+ ENTRY;
- return stripe_off / ssize;
+ 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 lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm,
- obd_off start, obd_off end, struct obd_trans_info *oti)
+static int lov_punch(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_trans_info *oti,
+ struct ptlrpc_request_set *rqset)
{
- struct obdo tmp;
- struct obd_export *export = class_conn2export(conn);
+ struct lov_request_set *set;
struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_file_handles *lfh = NULL;
- int rc = 0, i;
+ struct list_head *pos;
+ struct lov_request *req;
+ int rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out, rc = -EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
- if (!export || !export->exp_obd)
- GOTO(out, rc = -ENODEV);
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
- if (oa->o_valid & OBD_MD_FLHANDLE)
- lfh = lov_handle2lfh(obdo_handle(oa));
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_punch_set(exp, oinfo, oti, &set);
+ if (rc)
+ RETURN(rc);
- lov = &export->exp_obd->u.lov;
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
- obd_off starti, endi;
- int err;
+ list_for_each (pos, &set->set_list) {
+ req = list_entry(pos, struct lov_request, rq_link);
- if (lov->tgts[loi->loi_ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- continue;
+ 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_oi->oi_oa->o_id,
+ req->rq_oi.oi_oa->o_id, req->rq_idx, rc);
+ break;
}
+ }
- if (!lov_stripe_intersects(lsm, i, start, end, &starti, &endi))
- continue;
+ if (rc || list_empty(&rqset->set_requests)) {
+ int err;
+ err = lov_fini_punch_set(set);
+ RETURN(rc ? rc : err);
+ }
- /* create data objects with "parent" OA */
- memcpy(&tmp, oa, sizeof(tmp));
- tmp.o_id = loi->loi_id;
- if (lfh)
- memcpy(obdo_handle(&tmp), lfh->lfh_och + i,
- FD_OSTDATA_SIZE);
- else
- tmp.o_valid &= ~OBD_MD_FLHANDLE;
+ 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,
+ void *capa)
+{
+ struct lov_request_set *set;
+ struct obd_info oinfo;
+ struct lov_obd *lov;
+ struct list_head *pos;
+ struct lov_request *req;
+ int err = 0, rc = 0;
+ ENTRY;
+
+ ASSERT_LSM_MAGIC(lsm);
- err = obd_punch(&lov->tgts[loi->loi_ost_idx].conn, &tmp, NULL,
- starti, endi, NULL);
+ if (!exp->exp_obd)
+ RETURN(-ENODEV);
+
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_sync_set(exp, &oinfo, oa, lsm, start, end, &set);
+ if (rc)
+ RETURN(rc);
+
+ list_for_each (pos, &set->set_list) {
+ req = list_entry(pos, struct lov_request, rq_link);
+
+ rc = obd_sync(lov->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) {
- if (lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: punch objid "LPX64" subobj "LPX64
- " on OST idx %d: rc = %d\n", oa->o_id,
- loi->loi_id, loi->loi_ost_idx, err);
- }
+ CERROR("error: fsync 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);
if (!rc)
rc = err;
}
}
- if (lfh != NULL)
- lov_lfh_put(lfh);
- GOTO(out, rc);
- out:
- class_export_put(export);
- return rc;
+ err = lov_fini_sync_set(set);
+ if (!rc)
+ rc = err;
+ RETURN(rc);
}
-static int lov_brw_check(struct lov_obd *lov, 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)
{
- int i;
+ struct obd_info oinfo = { { { 0 } } };
+ int i, rc = 0;
+
+ 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++) {
- int stripe = lov_stripe_number(lsm, pga[i].off);
- int ost = lsm->lsm_oinfo[stripe].loi_ost_idx;
- struct ldlm_extent ext, subext;
- ext.start = pga[i].off;
- ext.start = pga[i].off + pga[i].count;
-
- if (!lov_stripe_intersects(lsm, i, ext.start, ext.end,
- &subext.start, &subext.end))
+ 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(lov_oinfo->oi_md, i, pga[i].off,
+ pga[i].off + pga[i].count,
+ &start, &end))
continue;
- if (lov->tgts[ost].active == 0) {
+ 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, lov->lov_tgts[ost]->ltd_exp, &oinfo,
+ 1, &pga[i], NULL);
+ if (rc)
+ break;
}
- return 0;
+ return rc;
}
-static int lov_brw(int cmd, struct lustre_handle *conn,
- 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 {
- int bufct;
- int index;
- int subcount;
- struct lov_stripe_md lsm;
- int ost_idx;
- } *stripeinfo, *si, *si_last;
- struct obd_export *export = class_conn2export(conn);
- struct lov_obd *lov;
- struct brw_page *ioarr;
- struct lov_oinfo *loi;
- int rc = 0, i, *where, stripe_count = lsm->lsm_stripe_count;
+ struct lov_request_set *set;
+ struct lov_request *req;
+ struct list_head *pos;
+ struct lov_obd *lov = &exp->exp_obd->u.lov;
+ int err, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out_exp, rc = -EINVAL);
-
- lov = &export->exp_obd->u.lov;
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
if (cmd == OBD_BRW_CHECK) {
- rc = lov_brw_check(lov, lsm, oa_bufs, pga);
- GOTO(out_exp, rc);
+ rc = lov_brw_check(lov, oinfo, oa_bufs, pga);
+ RETURN(rc);
}
- OBD_ALLOC(stripeinfo, stripe_count * sizeof(*stripeinfo));
- if (!stripeinfo)
- GOTO(out_exp, rc = -ENOMEM);
-
- OBD_ALLOC(where, sizeof(*where) * oa_bufs);
- if (!where)
- GOTO(out_sinfo, rc = -ENOMEM);
+ rc = lov_prep_brw_set(exp, oinfo, oa_bufs, pga, oti, &set);
+ if (rc)
+ RETURN(rc);
- OBD_ALLOC(ioarr, sizeof(*ioarr) * oa_bufs);
- if (!ioarr)
- GOTO(out_where, rc = -ENOMEM);
+ 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);
- for (i = 0; i < oa_bufs; i++) {
- where[i] = lov_stripe_number(lsm, pga[i].off);
- stripeinfo[where[i]].bufct++;
+ 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_oi, req->rq_oabufs,
+ sub_pga, oti);
+ if (rc)
+ break;
+ lov_update_common_set(set, req, rc);
}
- for (i = 0, loi = lsm->lsm_oinfo, si_last = si = stripeinfo;
- i < stripe_count; i++, loi++, si_last = si, si++) {
- if (i > 0)
- si->index = si_last->index + si_last->bufct;
- si->lsm.lsm_object_id = loi->loi_id;
- si->ost_idx = loi->loi_ost_idx;
+ err = lov_fini_brw_set(set);
+ if (!rc)
+ rc = err;
+ RETURN(rc);
+}
+
+static int lov_brw_interpret(struct ptlrpc_request_set *reqset, 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);
}
- for (i = 0; i < oa_bufs; i++) {
- int which = where[i];
- int shift;
+ RETURN(rc);
+}
+
+static int lov_brw_async(int cmd, struct obd_export *exp,
+ struct obd_info *oinfo, obd_count oa_bufs,
+ struct brw_page *pga, struct obd_trans_info *oti,
+ struct ptlrpc_request_set *set)
+{
+ struct lov_request_set *lovset;
+ struct lov_request *req;
+ struct list_head *pos;
+ struct lov_obd *lov = &exp->exp_obd->u.lov;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
- shift = stripeinfo[which].index + stripeinfo[which].subcount;
- LASSERT(shift < oa_bufs);
- ioarr[shift] = pga[i];
- lov_stripe_offset(lsm, pga[i].off, which, &ioarr[shift].off);
- stripeinfo[which].subcount++;
+ if (cmd == OBD_BRW_CHECK) {
+ rc = lov_brw_check(lov, oinfo, oa_bufs, pga);
+ RETURN(rc);
}
- for (i = 0, si = stripeinfo; i < stripe_count; i++, si++) {
- int shift = si->index;
+ rc = lov_prep_brw_set(exp, oinfo, oa_bufs, pga, oti, &lovset);
+ if (rc)
+ RETURN(rc);
- if (lov->tgts[si->ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", si->ost_idx);
- GOTO(out_ioarr, rc = -EIO);
- }
+ 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);
- if (si->bufct) {
- LASSERT(shift < oa_bufs);
- rc = obd_brw(cmd, &lov->tgts[si->ost_idx].conn,
- &si->lsm, si->bufct, &ioarr[shift],
- oti);
- if (rc)
- GOTO(out_ioarr, rc);
- }
+ sub_exp = lov->lov_tgts[req->rq_idx]->ltd_exp;
+ sub_pga = lovset->set_pga + req->rq_pgaidx;
+ rc = obd_brw_async(cmd, sub_exp, &req->rq_oi, req->rq_oabufs,
+ sub_pga, oti, set);
+ if (rc)
+ GOTO(out, rc);
+ lov_update_common_set(lovset, req, rc);
}
- GOTO(out_ioarr, rc);
- out_ioarr:
- OBD_FREE(ioarr, sizeof(*ioarr) * oa_bufs);
- out_where:
- OBD_FREE(where, sizeof(*where) * oa_bufs);
- out_sinfo:
- OBD_FREE(stripeinfo, stripe_count * sizeof(*stripeinfo));
- out_exp:
- class_export_put(export);
- return 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_brw_interpret (struct ptlrpc_request_set *set,
- struct lov_brw_async_args *aa, int rc)
+static int lov_ap_make_ready(void *data, int cmd)
{
- obd_count oa_bufs = aa->aa_oa_bufs;
- struct brw_page *ioarr = aa->aa_ioarr;
- ENTRY;
+ struct lov_async_page *lap = LAP_FROM_COOKIE(data);
- OBD_FREE (ioarr, sizeof (*ioarr) * oa_bufs);
- RETURN (rc);
+ return lap->lap_caller_ops->ap_make_ready(lap->lap_caller_data, cmd);
}
-static int lov_brw_async(int cmd, struct lustre_handle *conn,
- struct lov_stripe_md *lsm, obd_count oa_bufs,
- struct brw_page *pga, struct ptlrpc_request_set *set,
- struct obd_trans_info *oti)
+static int lov_ap_refresh_count(void *data, int cmd)
{
- struct {
- int bufct;
- int index;
- int subcount;
- struct lov_stripe_md lsm;
- int ost_idx;
- } *stripeinfo, *si, *si_last;
- struct obd_export *export = class_conn2export(conn);
- struct lov_obd *lov;
- struct brw_page *ioarr;
- struct lov_oinfo *loi;
- struct lov_brw_async_args *aa;
- int rc = 0, i, *where, stripe_count = lsm->lsm_stripe_count;
- ENTRY;
+ struct lov_async_page *lap = LAP_FROM_COOKIE(data);
- if (lsm_bad_magic(lsm))
- GOTO(out_exp, rc = -EINVAL);
+ return lap->lap_caller_ops->ap_refresh_count(lap->lap_caller_data,
+ cmd);
+}
- lov = &export->exp_obd->u.lov;
+static void lov_ap_fill_obdo(void *data, int cmd, struct obdo *oa)
+{
+ struct lov_async_page *lap = LAP_FROM_COOKIE(data);
+
+ lap->lap_caller_ops->ap_fill_obdo(lap->lap_caller_data, cmd, oa);
+ /* XXX woah, shouldn't we be altering more here? size? */
+ oa->o_id = lap->lap_loi_id;
+ oa->o_gr = lap->lap_loi_gr;
+ oa->o_valid |= OBD_MD_FLGROUP;
+ oa->o_stripe_idx = lap->lap_stripe;
+}
- if (cmd == OBD_BRW_CHECK) {
- rc = lov_brw_check(lov, lsm, oa_bufs, pga);
- GOTO(out_exp, rc);
- }
+static void lov_ap_update_obdo(void *data, int cmd, struct obdo *oa,
+ obd_valid valid)
+{
+ struct lov_async_page *lap = LAP_FROM_COOKIE(data);
- OBD_ALLOC(stripeinfo, stripe_count * sizeof(*stripeinfo));
- if (!stripeinfo)
- GOTO(out_exp, rc = -ENOMEM);
+ lap->lap_caller_ops->ap_update_obdo(lap->lap_caller_data, cmd,oa,valid);
+}
- OBD_ALLOC(where, sizeof(*where) * oa_bufs);
- if (!where)
- GOTO(out_sinfo, rc = -ENOMEM);
+static int lov_ap_completion(void *data, int cmd, struct obdo *oa, int rc)
+{
+ struct lov_async_page *lap = LAP_FROM_COOKIE(data);
- OBD_ALLOC(ioarr, sizeof(*ioarr) * oa_bufs);
- if (!ioarr)
- GOTO(out_where, rc = -ENOMEM);
+ /* 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 */
+ rc = lap->lap_caller_ops->ap_completion(lap->lap_caller_data,cmd,oa,rc);
+ return rc;
+}
- for (i = 0; i < oa_bufs; i++) {
- where[i] = lov_stripe_number(lsm, pga[i].off);
- stripeinfo[where[i]].bufct++;
- }
+static struct obd_capa *lov_ap_lookup_capa(void *data, int cmd)
+{
+ struct lov_async_page *lap = LAP_FROM_COOKIE(data);
+ return lap->lap_caller_ops->ap_lookup_capa(lap->lap_caller_data, cmd);
+}
- for (i = 0, loi = lsm->lsm_oinfo, si_last = si = stripeinfo;
- i < stripe_count; i++, loi++, si_last = si, si++) {
- if (i > 0)
- si->index = si_last->index + si_last->bufct;
- si->lsm.lsm_object_id = loi->loi_id;
- si->ost_idx = loi->loi_ost_idx;
- }
+static struct obd_async_page_ops lov_async_page_ops = {
+ .ap_make_ready = lov_ap_make_ready,
+ .ap_refresh_count = lov_ap_refresh_count,
+ .ap_fill_obdo = lov_ap_fill_obdo,
+ .ap_update_obdo = lov_ap_update_obdo,
+ .ap_completion = lov_ap_completion,
+ .ap_lookup_capa = lov_ap_lookup_capa,
+};
- for (i = 0; i < oa_bufs; i++) {
- int which = where[i];
- int shift;
+int lov_prep_async_page(struct obd_export *exp, struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi, cfs_page_t *page,
+ obd_off offset, struct obd_async_page_ops *ops,
+ void *data, void **res)
+{
+ struct lov_obd *lov = &exp->exp_obd->u.lov;
+ struct lov_async_page *lap;
+ int rc = 0;
+ ENTRY;
- shift = stripeinfo[which].index + stripeinfo[which].subcount;
- LASSERT(shift < oa_bufs);
- ioarr[shift] = pga[i];
- lov_stripe_offset(lsm, pga[i].off, which, &ioarr[shift].off);
- stripeinfo[which].subcount++;
+ if (!page) {
+ int i = 0;
+ /* Find an existing osc so we can get it's stupid sizeof(*oap).
+ Only because of this layering limitation will a client
+ mount with no osts fail */
+ while (!lov->lov_tgts || !lov->lov_tgts[i] ||
+ !lov->lov_tgts[i]->ltd_exp) {
+ i++;
+ if (i >= lov->desc.ld_tgt_count)
+ RETURN(-ENOMEDIUM);
+ }
+ rc = size_round(sizeof(*lap)) +
+ obd_prep_async_page(lov->lov_tgts[i]->ltd_exp, NULL,
+ NULL, NULL, 0, NULL, NULL, NULL);
+ RETURN(rc);
}
+ ASSERT_LSM_MAGIC(lsm);
+ LASSERT(loi == NULL);
- for (i = 0, si = stripeinfo; i < stripe_count; i++, si++) {
- int shift = si->index;
+ lap = *res;
+ lap->lap_magic = LOV_AP_MAGIC;
+ lap->lap_caller_ops = ops;
+ lap->lap_caller_data = data;
- if (si->bufct == 0)
- continue;
+ /* for now only raid 0 which passes through */
+ lap->lap_stripe = lov_stripe_number(lsm, offset);
+ lov_stripe_offset(lsm, offset, lap->lap_stripe, &lap->lap_sub_offset);
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
- if (lov->tgts[si->ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", si->ost_idx);
- GOTO(out_ioarr, rc = -EIO);
- }
+ /* so the callback doesn't need the lsm */
+ lap->lap_loi_id = loi->loi_id;
+ lap->lap_loi_gr = lsm->lsm_object_gr;
+ LASSERT(lsm->lsm_object_gr > 0);
+
+ lap->lap_sub_cookie = (void *)lap + size_round(sizeof(*lap));
- LASSERT(shift < oa_bufs);
- rc = obd_brw_async(cmd, &lov->tgts[si->ost_idx].conn,
- &si->lsm, si->bufct, &ioarr[shift],
- set, oti);
- if (rc)
- GOTO(out_ioarr, rc);
- }
- LASSERT (rc == 0);
- LASSERT (set->set_interpret == NULL);
- set->set_interpret = lov_brw_interpret;
- LASSERT (sizeof (set->set_args) >= sizeof (struct lov_brw_async_args));
- aa = (struct lov_brw_async_args *)&set->set_args;
- aa->aa_oa_bufs = oa_bufs;
- aa->aa_ioarr = ioarr;
- GOTO(out_where, rc);
- out_ioarr:
- OBD_FREE(ioarr, sizeof(*ioarr) * oa_bufs);
- out_where:
- OBD_FREE(where, sizeof(*where) * oa_bufs);
- out_sinfo:
- OBD_FREE(stripeinfo, stripe_count * sizeof(*stripeinfo));
- out_exp:
- class_export_put(export);
- return rc;
+ rc = obd_prep_async_page(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ lsm, loi, page, lap->lap_sub_offset,
+ &lov_async_page_ops, lap,
+ &lap->lap_sub_cookie);
+ if (rc)
+ RETURN(rc);
+ CDEBUG(D_CACHE, "lap %p page %p cookie %p off "LPU64"\n", lap, page,
+ lap->lap_sub_cookie, offset);
+ RETURN(0);
}
-static int lov_enqueue(struct lustre_handle *conn, struct lov_stripe_md *lsm,
- struct lustre_handle *parent_lock,
- __u32 type, void *cookie, int cookielen, __u32 mode,
- int *flags, void *cb, void *data,
- struct lustre_handle *lockh)
+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_flag brw_flags, obd_flag async_flags)
{
- struct obd_export *export = class_conn2export(conn);
- struct lov_lock_handles *lov_lockh = NULL;
- struct lustre_handle *lov_lockhp;
- struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_stripe_md submd;
- ldlm_error_t rc;
- int i;
- ENTRY;
+ struct lov_obd *lov = &exp->exp_obd->u.lov;
+ struct lov_async_page *lap;
+ int rc;
- if (lsm_bad_magic(lsm))
- GOTO(out_exp, rc = -EINVAL);
+ LASSERT(loi == NULL);
- /* we should never be asked to replay a lock this way. */
- LASSERT((*flags & LDLM_FL_REPLAY) == 0);
+ ASSERT_LSM_MAGIC(lsm);
- if (!export || !export->exp_obd)
- GOTO(out_exp, rc = -ENODEV);
+ lap = LAP_FROM_COOKIE(cookie);
- if (lsm->lsm_stripe_count > 1) {
- lov_lockh = lov_llh_new(lsm);
- if (lov_lockh == NULL)
- GOTO(out_exp, rc = -ENOMEM);
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
- lockh->cookie = lov_lockh->llh_handle.h_cookie;
- lov_lockhp = lov_lockh->llh_handles;
- } else {
- lov_lockhp = lockh;
- }
+ rc = obd_queue_async_io(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp, lsm,
+ loi, lap->lap_sub_cookie, cmd, off, count,
+ brw_flags, async_flags);
+ RETURN(rc);
+}
- lov = &export->exp_obd->u.lov;
- for (i = 0, loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count;
- i++, loi++, lov_lockhp++) {
- struct ldlm_extent *extent = (struct ldlm_extent *)cookie;
- struct ldlm_extent sub_ext;
+static int lov_set_async_flags(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi, void *cookie,
+ obd_flag async_flags)
+{
+ struct lov_obd *lov = &exp->exp_obd->u.lov;
+ struct lov_async_page *lap;
+ int rc;
- *flags = 0;
- if (!lov_stripe_intersects(lsm, i, extent->start, extent->end,
- &sub_ext.start, &sub_ext.end))
- continue;
+ LASSERT(loi == NULL);
+
+ ASSERT_LSM_MAGIC(lsm);
+
+ lap = LAP_FROM_COOKIE(cookie);
+
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
+
+ rc = obd_set_async_flags(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ lsm, loi, lap->lap_sub_cookie, async_flags);
+ RETURN(rc);
+}
- if (lov->tgts[loi->loi_ost_idx].active == 0) {
+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_flag brw_flags, obd_flag async_flags)
+{
+ struct lov_obd *lov = &exp->exp_obd->u.lov;
+ struct lov_async_page *lap;
+ int rc;
+
+ LASSERT(loi == NULL);
+
+ ASSERT_LSM_MAGIC(lsm);
+
+ lap = LAP_FROM_COOKIE(cookie);
+
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
+
+ rc = obd_queue_group_io(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp, lsm,
+ loi, oig, lap->lap_sub_cookie, cmd, off, count,
+ brw_flags, async_flags);
+ 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);
+
+ ASSERT_LSM_MAGIC(lsm);
+
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ loi = lsm->lsm_oinfo[i];
+ if (!lov->lov_tgts[loi->loi_ost_idx] ||
+ !lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
continue;
}
- /* XXX LOV STACKING: submd should be from the subobj */
- submd.lsm_object_id = loi->loi_id;
- submd.lsm_stripe_count = 0;
- /* XXX submd is not fully initialized here */
- *flags = 0;
- rc = obd_enqueue(&(lov->tgts[loi->loi_ost_idx].conn), &submd,
- parent_lock, type, &sub_ext, sizeof(sub_ext),
- mode, flags, cb, data, lov_lockhp);
-
- // XXX add a lock debug statement here
- if (rc != ELDLM_OK) {
- memset(lov_lockhp, 0, sizeof(*lov_lockhp));
- if (lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: enqueue objid "LPX64" subobj "
- LPX64" on OST idx %d: rc = %d\n",
- lsm->lsm_object_id, loi->loi_id,
- loi->loi_ost_idx, rc);
- goto out_locks;
- }
- }
- }
- if (lsm->lsm_stripe_count > 1)
- lov_llh_put(lov_lockh);
- GOTO(out_exp, rc = ELDLM_OK);
+ err = obd_trigger_group_io(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ lsm, loi, oig);
+ if (rc == 0 && err != 0)
+ rc = err;
+ };
+ RETURN(rc);
+}
- out_locks:
- while (loi--, lov_lockhp--, i-- > 0) {
- struct lov_stripe_md submd;
- int err;
+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_async_page *lap;
+ int rc;
- if (lov_lockhp->cookie == 0)
- continue;
+ LASSERT(loi == NULL);
- /* XXX LOV STACKING: submd should be from the subobj */
- submd.lsm_object_id = loi->loi_id;
- submd.lsm_stripe_count = 0;
- err = obd_cancel(&lov->tgts[loi->loi_ost_idx].conn, &submd,
- mode, lov_lockhp);
- if (err && lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: cancelling objid "LPX64" on OST "
- "idx %d after enqueue error: rc = %d\n",
- loi->loi_id, loi->loi_ost_idx, err);
- }
- }
+ ASSERT_LSM_MAGIC(lsm);
- if (lsm->lsm_stripe_count > 1) {
- lov_llh_destroy(lov_lockh);
- lov_llh_put(lov_lockh);
+ lap = LAP_FROM_COOKIE(cookie);
+
+ loi = lsm->lsm_oinfo[lap->lap_stripe];
+
+ rc = obd_teardown_async_page(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ lsm, loi, lap->lap_sub_cookie);
+ if (rc) {
+ CERROR("unable to teardown sub cookie %p: %d\n",
+ lap->lap_sub_cookie, rc);
+ RETURN(rc);
}
- out_exp:
- class_export_put(export);
RETURN(rc);
}
-static int lov_match(struct lustre_handle *conn, struct lov_stripe_md *lsm,
- __u32 type, void *cookie, int cookielen, __u32 mode,
- int *flags, void *data, struct lustre_handle *lockh)
+static int lov_enqueue_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
{
- struct obd_export *export = class_conn2export(conn);
- struct lov_lock_handles *lov_lockh = NULL;
- struct lustre_handle *lov_lockhp;
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ ENTRY;
+ rc = lov_fini_enqueue_set(lovset, lovset->set_ei->ei_mode, rc, rqset);
+ RETURN(rc);
+}
+
+static int lov_enqueue(struct obd_export *exp, struct obd_info *oinfo,
+ struct ldlm_enqueue_info *einfo,
+ struct ptlrpc_request_set *rqset)
+{
+ ldlm_mode_t mode = einfo->ei_mode;
+ struct lov_request_set *set;
+ struct lov_request *req;
+ struct list_head *pos;
struct lov_obd *lov;
- struct lov_oinfo *loi;
- struct lov_stripe_md submd;
- ldlm_error_t rc = 0;
- int i;
+ ldlm_error_t rc;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out_exp, rc = -EINVAL);
+ LASSERT(oinfo);
+ ASSERT_LSM_MAGIC(oinfo->oi_md);
+ LASSERT(mode == (mode & -mode));
- if (!export || !export->exp_obd)
- GOTO(out_exp, rc = -ENODEV);
+ /* we should never be asked to replay a lock this way. */
+ LASSERT((oinfo->oi_flags & LDLM_FL_REPLAY) == 0);
- if (lsm->lsm_stripe_count > 1) {
- lov_lockh = lov_llh_new(lsm);
- if (lov_lockh == NULL)
- GOTO(out_exp, rc = -ENOMEM);
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
- lockh->cookie = lov_lockh->llh_handle.h_cookie;
- lov_lockhp = lov_lockh->llh_handles;
- } else {
- lov_lockhp = lockh;
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_enqueue_set(exp, oinfo, einfo, &set);
+ if (rc)
+ RETURN(rc);
+
+ list_for_each (pos, &set->set_list) {
+ req = list_entry(pos, struct lov_request, rq_link);
+
+ rc = obd_enqueue(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ &req->rq_oi, einfo, rqset);
+ if (rc != ELDLM_OK)
+ GOTO(out, rc);
}
- lov = &export->exp_obd->u.lov;
- for (i = 0, loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count;
- i++, loi++, lov_lockhp++) {
- struct ldlm_extent *extent = (struct ldlm_extent *)cookie;
- struct ldlm_extent sub_ext;
- int lov_flags;
+ if (rqset && !list_empty(&rqset->set_requests)) {
+ LASSERT(rc == 0);
+ LASSERT(rqset->set_interpret == NULL);
+ rqset->set_interpret = lov_enqueue_interpret;
+ rqset->set_arg = (void *)set;
+ RETURN(rc);
+ }
+out:
+ rc = lov_fini_enqueue_set(set, mode, rc, rqset);
+ RETURN(rc);
+}
- if (!lov_stripe_intersects(lsm, i, extent->start, extent->end,
- &sub_ext.start, &sub_ext.end))
- continue;
+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 obd_info oinfo;
+ 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 (lov->tgts[loi->loi_ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- rc = -EIO;
- break;
- }
+ ASSERT_LSM_MAGIC(lsm);
+ LASSERT((*flags & LDLM_FL_TEST_LOCK) || mode == (mode & -mode));
+
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
+
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_match_set(exp, &oinfo, lsm, policy, mode, lockh, &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);
- /* XXX LOV STACKING: submd should be from the subobj */
- submd.lsm_object_id = loi->loi_id;
- submd.lsm_stripe_count = 0;
lov_flags = *flags;
- /* XXX submd is not fully initialized here */
- rc = obd_match(&(lov->tgts[loi->loi_ost_idx].conn), &submd,
- type, &sub_ext, sizeof(sub_ext), mode,
- &lov_flags, data, lov_lockhp);
- if (rc != 1)
+ sub_policy.l_extent = req->rq_oi.oi_policy.l_extent;
+
+ rc = obd_match(lov->lov_tgts[req->rq_idx]->ltd_exp,
+ req->rq_oi.oi_md, type, &sub_policy,
+ mode, &lov_flags, data, lov_lockhp);
+ rc = lov_update_match_set(set, req, rc);
+ if (rc <= 0)
break;
}
- if (rc == 1) {
- if (lsm->lsm_stripe_count > 1)
- lov_llh_put(lov_lockh);
- GOTO(out_exp, 1);
- }
+ lov_fini_match_set(set, mode, *flags);
+ RETURN(rc);
+}
+
+static int lov_change_cbdata(struct obd_export *exp,
+ struct lov_stripe_md *lsm, ldlm_iterator_t it,
+ void *data)
+{
+ struct lov_obd *lov;
+ int rc = 0, i;
+ ENTRY;
+
+ ASSERT_LSM_MAGIC(lsm);
+
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
- while (loi--, lov_lockhp--, i-- > 0) {
+ LASSERT(lsm->lsm_object_gr > 0);
+
+ lov = &exp->exp_obd->u.lov;
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
struct lov_stripe_md submd;
- int err;
+ struct lov_oinfo *loi = lsm->lsm_oinfo[i];
- if (lov_lockhp->cookie == 0)
+ if (!lov->lov_tgts[loi->loi_ost_idx]) {
+ CDEBUG(D_HA, "lov idx %d NULL \n", loi->loi_ost_idx);
continue;
-
- /* XXX LOV STACKING: submd should be from the subobj */
+ }
+
submd.lsm_object_id = loi->loi_id;
+ submd.lsm_object_gr = lsm->lsm_object_gr;
submd.lsm_stripe_count = 0;
- err = obd_cancel(&lov->tgts[loi->loi_ost_idx].conn, &submd,
- mode, lov_lockhp);
- if (err && lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: cancelling objid "LPX64" on OST "
- "idx %d after match failure: rc = %d\n",
- loi->loi_id, loi->loi_ost_idx, err);
- }
- }
-
- if (lsm->lsm_stripe_count > 1) {
- lov_llh_destroy(lov_lockh);
- lov_llh_put(lov_lockh);
+ rc = obd_change_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ &submd, it, data);
}
- out_exp:
- class_export_put(export);
RETURN(rc);
}
-static int lov_cancel(struct lustre_handle *conn, struct lov_stripe_md *lsm,
+static int lov_cancel(struct obd_export *exp, struct lov_stripe_md *lsm,
__u32 mode, struct lustre_handle *lockh)
{
- struct obd_export *export = class_conn2export(conn);
- struct lov_lock_handles *lov_lockh = NULL;
+ 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;
struct lustre_handle *lov_lockhp;
- struct lov_obd *lov;
- struct lov_oinfo *loi;
- int rc = 0, i;
+ int err = 0, rc = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out, rc = -EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
- if (!export || !export->exp_obd)
- GOTO(out, rc = -ENODEV);
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
+ LASSERT(lsm->lsm_object_gr > 0);
LASSERT(lockh);
- if (lsm->lsm_stripe_count > 1) {
- lov_lockh = lov_handle2llh(lockh);
- if (!lov_lockh) {
- CERROR("LOV: invalid lov lock handle %p\n", lockh);
- GOTO(out, rc = -EINVAL);
- }
-
- lov_lockhp = lov_lockh->llh_handles;
- } else {
- lov_lockhp = lockh;
- }
+ lov = &exp->exp_obd->u.lov;
+ rc = lov_prep_cancel_set(exp, &oinfo, lsm, mode, lockh, &set);
+ if (rc)
+ RETURN(rc);
- lov = &export->exp_obd->u.lov;
- for (i = 0, loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count;
- i++, loi++, lov_lockhp++) {
- struct lov_stripe_md submd;
- int err;
+ list_for_each (pos, &set->set_list) {
+ req = list_entry(pos, struct lov_request, rq_link);
+ lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
- if (lov_lockhp->cookie == 0) {
- CDEBUG(D_HA, "lov idx %d subobj "LPX64" no lock?\n",
- loi->loi_ost_idx, loi->loi_id);
- continue;
+ 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_oi.oi_md->lsm_object_id,
+ req->rq_idx, rc);
+ err = rc;
}
- /* XXX LOV STACKING: submd should be from the subobj */
- submd.lsm_object_id = loi->loi_id;
- submd.lsm_stripe_count = 0;
- err = obd_cancel(&lov->tgts[loi->loi_ost_idx].conn, &submd,
- mode, lov_lockhp);
- if (err) {
- if (lov->tgts[loi->loi_ost_idx].active) {
- CERROR("error: cancel 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 (lsm->lsm_stripe_count > 1)
- lov_llh_destroy(lov_lockh);
- if (lov_lockh != NULL)
- lov_llh_put(lov_lockh);
- GOTO(out, rc);
- out:
- class_export_put(export);
- return rc;
+ lov_fini_cancel_set(set);
+ RETURN(err);
}
-static int lov_cancel_unused(struct lustre_handle *conn,
- struct lov_stripe_md *lsm, int flags, void *opaque)
+static int lov_cancel_unused(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ int flags, void *opaque)
{
- struct obd_export *export = class_conn2export(conn);
struct lov_obd *lov;
- struct lov_oinfo *loi;
int rc = 0, i;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out, rc = -EINVAL);
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
- if (!export || !export->exp_obd)
- GOTO(out, rc = -ENODEV);
+ lov = &exp->exp_obd->u.lov;
+ if (lsm == NULL) {
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ int err;
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
+ continue;
- lov = &export->exp_obd->u.lov;
- for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
+ err = obd_cancel_unused(lov->lov_tgts[i]->ltd_exp, NULL,
+ flags, opaque);
+ if (!rc)
+ rc = err;
+ }
+ RETURN(rc);
+ }
+
+ ASSERT_LSM_MAGIC(lsm);
+
+ LASSERT(lsm->lsm_object_gr > 0);
+ 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->tgts[loi->loi_ost_idx].active == 0)
+ if (!lov->lov_tgts[loi->loi_ost_idx]) {
+ CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
+ continue;
+ }
+
+ if (!lov->lov_tgts[loi->loi_ost_idx]->ltd_active)
CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
submd.lsm_object_id = loi->loi_id;
+ submd.lsm_object_gr = lsm->lsm_object_gr;
submd.lsm_stripe_count = 0;
- err = obd_cancel_unused(&lov->tgts[loi->loi_ost_idx].conn,
+ err = obd_cancel_unused(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
&submd, flags, opaque);
- if (err && lov->tgts[loi->loi_ost_idx].active) {
+ 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);
rc = err;
}
}
- GOTO(out, rc);
- out:
- class_export_put(export);
- return rc;
+ RETURN(rc);
+}
+
+static int lov_join_lru(struct obd_export *exp,
+ struct lov_stripe_md *lsm, int join)
+{
+ struct lov_obd *lov;
+ int i, count = 0;
+ ENTRY;
+
+ ASSERT_LSM_MAGIC(lsm);
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
+
+ lov = &exp->exp_obd->u.lov;
+ for (i = 0; i < lsm->lsm_stripe_count; i++) {
+ struct lov_stripe_md submd;
+ struct lov_oinfo *loi = lsm->lsm_oinfo[i];
+ int rc = 0;
+
+ if (!lov->lov_tgts[loi->loi_ost_idx]) {
+ CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
+ continue;
+ }
+
+ if (!lov->lov_tgts[loi->loi_ost_idx]->ltd_active)
+ CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
+
+ submd.lsm_object_id = loi->loi_id;
+ submd.lsm_object_gr = lsm->lsm_object_gr;
+ submd.lsm_stripe_count = 0;
+ rc = obd_join_lru(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
+ &submd, join);
+ if (rc < 0) {
+ CERROR("join lru failed. objid: "LPX64" subobj: "LPX64
+ " ostidx: %d rc: %d\n", lsm->lsm_object_id,
+ loi->loi_id, loi->loi_ost_idx, rc);
+ return rc;
+ } else {
+ count += rc;
+ }
+ }
+ RETURN(count);
}
-#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_interpret(struct ptlrpc_request_set *rqset,
+ void *data, int rc)
+{
+ struct lov_request_set *lovset = (struct lov_request_set *)data;
+ int err;
+ ENTRY;
+
+ if (rc)
+ lovset->set_completes = 0;
+
+ err = lov_fini_statfs_set(lovset);
+ RETURN(rc ? rc : err);
+}
-static int lov_statfs(struct obd_export *export, struct obd_statfs *osfs)
+static int lov_statfs_async(struct obd_device *obd, struct obd_info *oinfo,
+ __u64 max_age, struct ptlrpc_request_set *rqset)
{
- struct obd_export *tgt_export;
+ struct lov_request_set *set;
+ struct lov_request *req;
+ struct list_head *pos;
struct lov_obd *lov;
- struct obd_statfs lov_sfs;
- int set = 0;
int rc = 0;
- int i;
ENTRY;
+
+ LASSERT(oinfo != NULL);
+ LASSERT(oinfo->oi_osfs != NULL);
- if (!export || !export->exp_obd)
- RETURN(-ENODEV);
+ lov = &obd->u.lov;
+ rc = lov_prep_statfs_set(obd, oinfo, &set);
+ if (rc)
+ RETURN(rc);
- lov = &export->exp_obd->u.lov;
+ list_for_each (pos, &set->set_list) {
+ struct obd_device *osc_obd;
- /* We only get block data from the OBD */
- for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ req = list_entry(pos, struct lov_request, rq_link);
+
+ osc_obd = class_exp2obd(lov->lov_tgts[req->rq_idx]->ltd_exp);
+ rc = obd_statfs_async(osc_obd, &req->rq_oi, max_age, rqset);
+ if (rc)
+ break;
+ }
+
+ if (rc || list_empty(&rqset->set_requests)) {
int err;
+ if (rc)
+ set->set_completes = 0;
+ err = lov_fini_statfs_set(set);
+ RETURN(rc ? rc : err);
+ }
- if (!lov->tgts[i].active) {
- CDEBUG(D_HA, "lov idx %d inactive\n", i);
- continue;
- }
+ 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)
+{
+ struct lov_obd *lov = &obd->u.lov;
+ struct obd_statfs lov_sfs;
+ int set = 0;
+ int rc = 0, err;
+ int i;
+ ENTRY;
- tgt_export = class_conn2export(&lov->tgts[i].conn);
- if (!tgt_export) {
- CDEBUG(D_HA, "lov idx %d NULL export\n", i);
+ /* We only get block data from the OBD */
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active) {
+ CDEBUG(D_HA, "lov idx %d inactive\n", i);
continue;
}
- err = obd_statfs(tgt_export, &lov_sfs);
- class_export_put(tgt_export);
+ err = obd_statfs(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
+ &lov_sfs, max_age);
if (err) {
- if (lov->tgts[i].active) {
- CERROR("error: statfs OSC %s on OST idx %d: "
- "err = %d\n",
- lov->tgts[i].uuid.uuid, i, err);
- if (!rc)
- rc = err;
- }
+ if (lov->lov_tgts[i]->ltd_active && !rc)
+ rc = err;
continue;
}
- if (!set) {
- memcpy(osfs, &lov_sfs, sizeof(lov_sfs));
- set = 1;
- } else {
- osfs->os_bfree += lov_sfs.os_bfree;
- osfs->os_bavail += lov_sfs.os_bavail;
- osfs->os_blocks += lov_sfs.os_blocks;
- /* XXX not sure about this one - depends on policy.
- * - could be minimum if we always stripe on all OBDs
- * (but that would be wrong for any other policy,
- * if one of the OBDs has no more objects left)
- * - could be sum if we stripe whole objects
- * - could be average, just to give a nice number
- *
- * To give a "reasonable" (if not wholly accurate)
- * number, we divide the total number of free objects
- * by expected stripe count (watch out for overflow).
- */
- LOV_SUM_MAX(osfs->os_files, lov_sfs.os_files);
- LOV_SUM_MAX(osfs->os_ffree, lov_sfs.os_ffree);
- }
+ lov_update_statfs(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
+ osfs, &lov_sfs, set);
+ set++;
}
- if (set) {
- __u32 expected_stripes = lov->desc.ld_default_stripe_count ?
- lov->desc.ld_default_stripe_count :
- lov->desc.ld_active_tgt_count;
-
- if (osfs->os_files != LOV_U64_MAX)
- do_div(osfs->os_files, expected_stripes);
- if (osfs->os_ffree != LOV_U64_MAX)
- do_div(osfs->os_ffree, expected_stripes);
- } else if (!rc)
- rc = -EIO;
- RETURN(rc);
+
+ err = lov_fini_statfs(obd, osfs, set);
+ qos_update(lov);
+
+ RETURN(rc ? rc : err);
}
-static int lov_iocontrol(unsigned int cmd, struct lustre_handle *conn, int len,
+static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
void *karg, void *uarg)
{
- struct obd_device *obddev = class_conn2obd(conn);
+ struct obd_device *obddev = class_exp2obd(exp);
struct lov_obd *lov = &obddev->u.lov;
- int i, count = lov->desc.ld_tgt_count;
+ int i, rc, count = lov->desc.ld_tgt_count;
struct obd_uuid *uuidp;
- int rc;
-
ENTRY;
switch (cmd) {
- case IOC_LOV_SET_OSC_ACTIVE: {
- struct obd_ioctl_data *data = karg;
- uuidp = (struct obd_uuid *)data->ioc_inlbuf1;
- rc = lov_set_osc_active(lov, uuidp, data->ioc_offset);
- break;
- }
case OBD_IOC_LOV_GET_CONFIG: {
- struct obd_ioctl_data *data = karg;
- struct lov_tgt_desc *tgtdesc;
+ 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);
data = (struct obd_ioctl_data *)buf;
if (sizeof(*desc) > data->ioc_inllen1) {
- OBD_FREE(buf, len);
+ obd_ioctl_freedata(buf, len);
RETURN(-EINVAL);
}
if (sizeof(uuidp->uuid) * count > data->ioc_inllen2) {
- OBD_FREE(buf, len);
+ obd_ioctl_freedata(buf, len);
+ RETURN(-EINVAL);
+ }
+
+ if (sizeof(__u32) * count > data->ioc_inllen3) {
+ obd_ioctl_freedata(buf, len);
RETURN(-EINVAL);
}
memcpy(desc, &(lov->desc), sizeof(*desc));
uuidp = (struct obd_uuid *)data->ioc_inlbuf2;
- tgtdesc = lov->tgts;
- for (i = 0; i < count; i++, uuidp++, tgtdesc++)
- obd_str2uuid(uuidp, tgtdesc->uuid.uuid);
+ genp = (__u32 *)data->ioc_inlbuf3;
+ /* the uuid will be empty for deleted OSTs */
+ 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;
+ }
rc = copy_to_user((void *)uarg, buf, len);
if (rc)
break;
}
case LL_IOC_LOV_SETSTRIPE:
- rc = lov_setstripe(conn, karg, uarg);
+ rc = lov_setstripe(exp, karg, uarg);
break;
case LL_IOC_LOV_GETSTRIPE:
- rc = lov_getstripe(conn, karg, uarg);
+ rc = lov_getstripe(exp, karg, uarg);
+ break;
+ case LL_IOC_LOV_SETEA:
+ rc = lov_setea(exp, karg, uarg);
break;
default: {
int set = 0;
+
if (count == 0)
RETURN(-ENOTTY);
+
rc = 0;
for (i = 0; i < count; i++) {
int err;
- err = obd_iocontrol(cmd, &lov->tgts[i].conn,
+ /* OST was disconnected */
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
+ continue;
+
+ err = obd_iocontrol(cmd, lov->lov_tgts[i]->ltd_exp,
len, karg, uarg);
- if (err) {
- if (lov->tgts[i].active) {
- CERROR("error: iocontrol OSC %s on OST"
- "idx %d: err = %d\n",
- lov->tgts[i].uuid.uuid, i, err);
+ 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_uuid2str(lov, i),
+ i, cmd, err);
if (!rc)
rc = err;
}
- } else
+ } else {
set = 1;
+ }
}
if (!set && !rc)
rc = -EIO;
RETURN(rc);
}
-static int lov_get_info(struct lustre_handle *conn, __u32 keylen,
+static int lov_get_info(struct obd_export *exp, __u32 keylen,
void *key, __u32 *vallen, void *val)
{
- struct obd_device *obddev = class_conn2obd(conn);
+ struct obd_device *obddev = class_exp2obd(exp);
struct lov_obd *lov = &obddev->u.lov;
- int i;
+ int i, rc;
ENTRY;
if (!vallen || !val)
RETURN(-EFAULT);
- if (keylen > strlen("lock_to_stripe") &&
- strcmp(key, "lock_to_stripe") == 0) {
+ lov_getref(obddev);
+
+ if (KEY_IS("lock_to_stripe")) {
struct {
char name[16];
struct ldlm_lock *lock;
struct lov_stripe_md *lsm;
} *data = key;
- __u32 *stripe = val;
+ 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
* change if we ever actually support nested LOVs. It uses
- * the lock's connection to find out which stripe it is. */
- for (i = 0, loi = data->lsm->lsm_oinfo;
- i < data->lsm->lsm_stripe_count;
- i++, loi++) {
- if (lov->tgts[loi->loi_ost_idx].conn.cookie ==
- data->lock->l_connh->cookie) {
+ * the lock's export to find out which stripe it is. */
+ /* 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. */
+ for (i = 0; i < data->lsm->lsm_stripe_count; i++) {
+ loi = data->lsm->lsm_oinfo[i];
+ if (!lov->lov_tgts[loi->loi_ost_idx])
+ continue;
+ if (lov->lov_tgts[loi->loi_ost_idx]->ltd_exp ==
+ data->lock->l_conn_export &&
+ loi->loi_id == res_id->name[0] &&
+ loi->loi_gr == res_id->name[2]) {
*stripe = i;
- RETURN(0);
+ GOTO(out, rc = 0);
}
}
- RETURN(-ENXIO);
+ LDLM_ERROR(data->lock, "lock on inode without such object");
+ dump_lsm(D_ERROR, data->lsm);
+ GOTO(out, rc = -ENXIO);
+ } else if (KEY_IS("last_id")) {
+ obd_id *ids = val;
+ int size = sizeof(obd_id);
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
+ continue;
+ rc = obd_get_info(lov->lov_tgts[i]->ltd_exp,
+ keylen, key, &size, ids + i);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
+ GOTO(out, rc = 0);
+ } else if (KEY_IS(KEY_LOVDESC)) {
+ struct lov_desc *desc_ret = val;
+ *desc_ret = lov->desc;
+
+ GOTO(out, rc = 0);
}
- RETURN(-EINVAL);
+ rc = -EINVAL;
+out:
+ lov_putref(obddev);
+ RETURN(rc);
}
-static int lov_mark_page_dirty(struct lustre_handle *conn,
- struct lov_stripe_md *lsm, unsigned long offset)
+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 lov_obd *lov = &class_conn2obd(conn)->u.lov;
- struct lov_oinfo *loi;
- struct lov_stripe_md *submd;
- int stripe, rc;
- obd_off off;
+ struct obd_device *obddev = class_exp2obd(exp);
+ struct lov_obd *lov = &obddev->u.lov;
+ int i, rc = 0, err;
+ int no_set = !set;
+ int incr = 0, check_uuid = 0, do_inactive = 0;
ENTRY;
- if (lsm_bad_magic(lsm))
- RETURN(-EINVAL);
+ if (no_set) {
+ set = ptlrpc_prep_set();
+ if (!set)
+ RETURN(-ENOMEM);
+ }
- OBD_ALLOC(submd, lov_stripe_md_size(1));
- if (submd == NULL)
- RETURN(-ENOMEM);
+ if (KEY_IS(KEY_NEXT_ID)) {
+ if (vallen != lov->desc.ld_tgt_count * sizeof(obd_id))
+ RETURN(-EINVAL);
+ vallen = sizeof(obd_id);
+ incr = sizeof(obd_id);
+ do_inactive = 1;
+ } else if (KEY_IS("checksum")) {
+ do_inactive = 1;
+ } else if (KEY_IS("unlinked")) {
+ check_uuid = val ? 1 : 0;
+ } else if (KEY_IS("evict_by_nid")) {
+ /* use defaults: do_inactive = incr = 0; */
+ }
+
+ lov_getref(obddev);
+
+ for (i = 0; i < lov->desc.ld_tgt_count; i++, val = (char *)val + incr) {
+ /* OST was disconnected */
+ if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
+ continue;
+
+ /* OST is inactive and we don't want inactive OSCs */
+ if (!lov->lov_tgts[i]->ltd_active && !do_inactive)
+ continue;
+
+ if (KEY_IS(KEY_MDS_CONN)) {
+ struct mds_group_info *mgi;
- stripe = lov_stripe_number(lsm, (obd_off)offset << PAGE_CACHE_SHIFT);
- lov_stripe_offset(lsm, (obd_off)offset << PAGE_CACHE_SHIFT, stripe,
- &off);
- off >>= PAGE_CACHE_SHIFT;
+ LASSERT(vallen == sizeof(*mgi));
+ mgi = (struct mds_group_info *)val;
+
+ /* Only want a specific OSC */
+ if (mgi->uuid && !obd_uuid_equals(mgi->uuid,
+ &lov->lov_tgts[i]->ltd_uuid))
+ continue;
- loi = &lsm->lsm_oinfo[stripe];
- CDEBUG(D_INODE, "off %lu => off %lu on stripe %d\n", offset,
- (unsigned long)off, stripe);
- submd->lsm_oinfo[0].loi_dirty_ot = &loi->loi_dirty_ot_inline;
+ err = obd_set_info_async(lov->lov_tgts[i]->ltd_exp,
+ keylen, key, sizeof(int),
+ &mgi->group, set);
+ } else {
+ /* Only want a specific OSC */
+ if (check_uuid &&
+ !obd_uuid_equals(val, &lov->lov_tgts[i]->ltd_uuid))
+ continue;
+
+ err = obd_set_info_async(lov->lov_tgts[i]->ltd_exp,
+ keylen, key, vallen, val, set);
+ }
+
+ if (!rc)
+ rc = err;
+ }
- rc = obd_mark_page_dirty(&lov->tgts[loi->loi_ost_idx].conn, submd, off);
- OBD_FREE(submd, lov_stripe_md_size(1));
+ lov_putref(obddev);
+ if (no_set) {
+ err = ptlrpc_set_wait(set);
+ if (!rc)
+ rc = err;
+ ptlrpc_set_destroy(set);
+ }
RETURN(rc);
}
-static int lov_clear_dirty_pages(struct lustre_handle *conn,
- struct lov_stripe_md *lsm, unsigned long start,
- unsigned long end, unsigned long *cleared)
-
+static int lov_checkmd(struct obd_export *exp, struct obd_export *md_exp,
+ struct lov_stripe_md *lsm)
{
- struct obd_export *export = class_conn2export(conn);
- __u64 start_off = (__u64)start << PAGE_CACHE_SHIFT;
- __u64 end_off = (__u64)end << PAGE_CACHE_SHIFT;
- __u64 obd_start, obd_end;
- struct lov_stripe_md *submd = NULL;
- struct lov_obd *lov;
- struct lov_oinfo *loi;
- int i, rc;
- unsigned long osc_cleared;
+ int rc;
ENTRY;
- *cleared = 0;
+ if (!lsm)
+ RETURN(0);
+ LASSERT(md_exp);
+ LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
+ rc = lsm_op_find(lsm->lsm_magic)->lsm_revalidate(lsm, md_exp->exp_obd);
- if (lsm_bad_magic(lsm))
- GOTO(out_exp, rc = -EINVAL);
+ RETURN(rc);
+}
- if (!export || !export->exp_obd)
- GOTO(out_exp, rc = -ENODEV);
+int lov_test_and_clear_async_rc(struct lov_stripe_md *lsm)
+{
+ int i, rc = 0;
+ ENTRY;
- OBD_ALLOC(submd, lov_stripe_md_size(1));
- if (submd == NULL)
- GOTO(out_exp, rc = -ENOMEM);
+ 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);
- lov = &export->exp_obd->u.lov;
- rc = 0;
- for (i = 0, loi = lsm->lsm_oinfo;
- i < lsm->lsm_stripe_count;
- i++, loi++) {
- if (lov->tgts[loi->loi_ost_idx].active == 0) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- continue;
- }
- if(!lov_stripe_intersects(lsm, i, start_off, end_off,
- &obd_start, &obd_end))
- continue;
- obd_start >>= PAGE_CACHE_SHIFT;
- obd_end >>= PAGE_CACHE_SHIFT;
-
- CDEBUG(D_INODE, "offs [%lu,%lu] => offs [%lu,%lu] stripe %d\n",
- start, end, (unsigned long)obd_start,
- (unsigned long)obd_end, loi->loi_ost_idx);
- submd->lsm_oinfo[0].loi_dirty_ot = &loi->loi_dirty_ot_inline;
- rc = obd_clear_dirty_pages(&lov->tgts[loi->loi_ost_idx].conn,
- submd, obd_start, obd_end,
- &osc_cleared);
- if (rc)
- break;
- *cleared += osc_cleared;
+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();
}
-out_exp:
- if (submd)
- OBD_FREE(submd, lov_stripe_md_size(1));
- class_export_put(export);
- RETURN(rc);
+
+ RETURN(0);
}
-static int lov_last_dirty_offset(struct lustre_handle *conn,
- struct lov_stripe_md *lsm,
- unsigned long *offset)
+
+#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)
{
- struct obd_export *export = class_conn2export(conn);
- struct lov_stripe_md *submd = NULL;
+ struct lov_lock_handles *lov_lockh = NULL;
+ struct lustre_handle *lov_lockhp;
struct lov_obd *lov;
struct lov_oinfo *loi;
- unsigned long tmp, count, skip;
- int err, i, rc;
+ struct lov_multi_wait *queues;
+ int rc = 0, i;
ENTRY;
- if (lsm_bad_magic(lsm))
- GOTO(out_exp, rc = -EINVAL);
+ ASSERT_LSM_MAGIC(lsm);
- if (!export || !export->exp_obd)
- GOTO(out_exp, rc = -ENODEV);
+ if (!exp || !exp->exp_obd)
+ RETURN(-ENODEV);
- OBD_ALLOC(submd, lov_stripe_md_size(1));
- if (submd == NULL)
- GOTO(out_exp, rc = -ENOMEM);
+ 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);
+ }
- *offset = 0;
- lov = &export->exp_obd->u.lov;
- rc = -ENOENT;
- for (i = 0, loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count;
- i++, loi++) {
+ lov_lockhp = lov_lockh->llh_handles;
+ } else {
+ lov_lockhp = lockh;
+ }
- count = lsm->lsm_stripe_size >> PAGE_CACHE_SHIFT;
- skip = (lsm->lsm_stripe_count - 1) * count;
+ OBD_ALLOC(queues, lsm->lsm_stripe_count * sizeof(*queues));
+ if (queues == NULL)
+ GOTO(out, rc = -ENOMEM);
- submd->lsm_oinfo[0].loi_dirty_ot = &loi->loi_dirty_ot_inline;
+ 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;
- err = obd_last_dirty_offset(&lov->tgts[loi->loi_ost_idx].conn,
- submd, &tmp);
- if (err == -ENOENT)
+ 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;
- if (err)
- GOTO(out_exp, rc = err);
+ }
- rc = 0;
- if (tmp != ~0)
- tmp += (tmp/count * skip) + (i * count);
- if (tmp > *offset)
- *offset = tmp;
- }
-out_exp:
- if (submd)
- OBD_FREE(submd, lov_stripe_md_size(1));
- class_export_put(export);
+ 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(&imp->imp_lock);
+ queues[i].generation = imp->imp_generation;
+ spin_unlock(&imp->imp_lock);
+ }
+ }
+
+ 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) {
+
+
+ }
+
+ out:
+ if (lov_lockh != NULL)
+ lov_llh_put(lov_lockh);
RETURN(rc);
}
+#endif
+
+void lov_stripe_lock(struct lov_stripe_md *md)
+{
+ LASSERT(md->lsm_lock_owner != cfs_current());
+ spin_lock(&md->lsm_lock);
+ LASSERT(md->lsm_lock_owner == NULL);
+ md->lsm_lock_owner = cfs_current();
+}
+EXPORT_SYMBOL(lov_stripe_lock);
+
+void lov_stripe_unlock(struct lov_stripe_md *md)
+{
+ LASSERT(md->lsm_lock_owner == cfs_current());
+ md->lsm_lock_owner = NULL;
+ spin_unlock(&md->lsm_lock);
+}
+EXPORT_SYMBOL(lov_stripe_unlock);
struct obd_ops lov_obd_ops = {
- o_owner: THIS_MODULE,
- o_attach: lov_attach,
- o_detach: lov_detach,
- o_setup: lov_setup,
- o_connect: lov_connect,
- o_disconnect: lov_disconnect,
- o_statfs: lov_statfs,
- o_packmd: lov_packmd,
- o_unpackmd: lov_unpackmd,
- o_create: lov_create,
- o_destroy: lov_destroy,
- o_getattr: lov_getattr,
- o_getattr_async: lov_getattr_async,
- o_setattr: lov_setattr,
- o_open: lov_open,
- o_close: lov_close,
- o_brw: lov_brw,
- o_brw_async: lov_brw_async,
- o_punch: lov_punch,
- o_enqueue: lov_enqueue,
- o_match: lov_match,
- o_cancel: lov_cancel,
- o_cancel_unused: lov_cancel_unused,
- o_iocontrol: lov_iocontrol,
- o_get_info: lov_get_info,
- .o_mark_page_dirty = lov_mark_page_dirty,
- .o_clear_dirty_pages = lov_clear_dirty_pages,
- .o_last_dirty_offset = lov_last_dirty_offset,
+ .o_owner = THIS_MODULE,
+ .o_setup = lov_setup,
+ .o_precleanup = lov_precleanup,
+ .o_cleanup = lov_cleanup,
+ .o_process_config = lov_process_config,
+ .o_connect = lov_connect,
+ .o_disconnect = lov_disconnect,
+ .o_statfs = lov_statfs,
+ .o_statfs_async = lov_statfs_async,
+ .o_packmd = lov_packmd,
+ .o_unpackmd = lov_unpackmd,
+ .o_checkmd = lov_checkmd,
+ .o_create = lov_create,
+ .o_destroy = lov_destroy,
+ .o_getattr = lov_getattr,
+ .o_getattr_async = lov_getattr_async,
+ .o_setattr = lov_setattr,
+ .o_setattr_async = lov_setattr_async,
+ .o_brw = lov_brw,
+ .o_brw_async = lov_brw_async,
+ .o_prep_async_page = lov_prep_async_page,
+ .o_queue_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_join_lru = lov_join_lru,
+ .o_iocontrol = lov_iocontrol,
+ .o_get_info = lov_get_info,
+ .o_set_info_async = lov_set_info_async,
+ .o_extent_calc = lov_extent_calc,
+ .o_llog_init = lov_llog_init,
+ .o_llog_finish = lov_llog_finish,
+ .o_notify = lov_notify,
};
+static quota_interface_t *quota_interface;
+extern quota_interface_t lov_quota_interface;
+
+cfs_mem_cache_t *lov_oinfo_slab;
+
int __init lov_init(void)
{
struct lprocfs_static_vars lvars;
- int rc;
+ int rc, rc2;
+ ENTRY;
+
+ lov_oinfo_slab = cfs_mem_cache_create("lov_oinfo",
+ sizeof(struct lov_oinfo),
+ 0, SLAB_HWCACHE_ALIGN);
+ if (lov_oinfo_slab == NULL)
+ return -ENOMEM;
+ lprocfs_init_vars(lov, &lvars);
+
+ request_module("lquota");
+ quota_interface = PORTAL_SYMBOL_GET(lov_quota_interface);
+ init_obd_quota_ops(quota_interface, &lov_obd_ops);
+
+ rc = class_register_type(&lov_obd_ops, NULL, lvars.module_vars,
+ LUSTRE_LOV_NAME, NULL);
+ if (rc) {
+ if (quota_interface)
+ PORTAL_SYMBOL_PUT(lov_quota_interface);
+ rc2 = cfs_mem_cache_destroy(lov_oinfo_slab);
+ LASSERT(rc2 == 0);
+ }
- printk(KERN_INFO "Lustre Logical Object Volume driver; "
- "info@clusterfs.com\n");
- lprocfs_init_vars(&lvars);
- rc = class_register_type(&lov_obd_ops, lvars.module_vars,
- OBD_LOV_DEVICENAME);
RETURN(rc);
}
-static void __exit lov_exit(void)
+#ifdef __KERNEL__
+static void /*__exit*/ lov_exit(void)
{
- class_unregister_type(OBD_LOV_DEVICENAME);
+ int rc;
+
+ if (quota_interface)
+ PORTAL_SYMBOL_PUT(lov_quota_interface);
+
+ class_unregister_type(LUSTRE_LOV_NAME);
+ rc = cfs_mem_cache_destroy(lov_oinfo_slab);
+ LASSERT(rc == 0);
}
-#ifdef __KERNEL__
MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
MODULE_DESCRIPTION("Lustre Logical Object Volume OBD driver");
MODULE_LICENSE("GPL");
-module_init(lov_init);
-module_exit(lov_exit);
+cfs_module(lov, LUSTRE_VERSION_STRING, lov_init, lov_exit);
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff