/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2001-2003 Cluster File Systems, Inc.
- * Author Peter Braam <braam@clusterfs.com>
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * 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.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * 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.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * 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.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * For testing and management it is treated as an obd_device,
- * although * it does not export a full OBD method table (the
- * requests are coming * in over the wire, so object target modules
- * do not have a full * method table.)
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/osc/osc_create.c
+ * For testing and management it is treated as an obd_device,
+ * although * it does not export a full OBD method table (the
+ * requests are coming * in over the wire, so object target modules
+ * do not have a full * method table.)
+ *
+ * Author: Peter Braam <braam@clusterfs.com>
*/
#ifndef EXPORT_SYMTAB
#define DEBUG_SUBSYSTEM S_OSC
#ifdef __KERNEL__
-# include <linux/version.h>
-# include <linux/module.h>
-# include <linux/mm.h>
-# include <linux/highmem.h>
-# include <linux/ctype.h>
-# include <linux/init.h>
-# if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
-# include <linux/workqueue.h>
-# include <linux/smp_lock.h>
-# else
-# include <linux/locks.h>
-# endif
+# include <libcfs/libcfs.h>
#else /* __KERNEL__ */
# include <liblustre.h>
#endif
# include <ctype.h>
#endif
-# include <linux/lustre_dlm.h>
-#include <linux/obd_class.h>
+#include <lustre_dlm.h>
+#include <obd_class.h>
#include "osc_internal.h"
-int oscc_recovering(struct osc_creator *oscc)
+/* XXX need AT adjust ? */
+#define osc_create_timeout (obd_timeout / 2)
+
+struct osc_create_async_args {
+ struct osc_creator *rq_oscc;
+ struct lov_stripe_md *rq_lsm;
+ struct obd_info *rq_oinfo;
+};
+
+static int oscc_internal_create(struct osc_creator *oscc);
+static int handle_async_create(struct ptlrpc_request *req, int rc);
+
+static int osc_interpret_create(const struct lu_env *env,
+ struct ptlrpc_request *req, void *data, int rc)
+{
+ struct osc_creator *oscc;
+ struct ost_body *body = NULL;
+ struct ptlrpc_request *fake_req, *pos;
+ ENTRY;
+
+ if (req->rq_repmsg) {
+ body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
+ if (body == NULL && rc == 0)
+ rc = -EPROTO;
+ }
+
+ oscc = req->rq_async_args.pointer_arg[0];
+ LASSERT(oscc && (oscc->oscc_obd != LP_POISON));
+
+ cfs_spin_lock(&oscc->oscc_lock);
+ oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
+ switch (rc) {
+ case 0: {
+ if (body) {
+ int diff =ostid_id(&body->oa.o_oi)- oscc->oscc_last_id;
+
+ /* oscc_internal_create() stores the original value of
+ * grow_count in rq_async_args.space[0].
+ * We can't compare against oscc_grow_count directly,
+ * because it may have been increased while the RPC
+ * is in flight, so we would always find ourselves
+ * having created fewer objects and decreasing the
+ * precreate request size. b=18577 */
+ if (diff < (int) req->rq_async_args.space[0]) {
+ /* the OST has not managed to create all the
+ * objects we asked for */
+ oscc->oscc_grow_count = max(diff,
+ OST_MIN_PRECREATE);
+ /* don't bump grow_count next time */
+ oscc->oscc_flags |= OSCC_FLAG_LOW;
+ } else {
+ /* the OST is able to keep up with the work,
+ * we could consider increasing grow_count
+ * next time if needed */
+ oscc->oscc_flags &= ~OSCC_FLAG_LOW;
+ }
+ oscc->oscc_last_id = ostid_id(&body->oa.o_oi);
+ }
+ cfs_spin_unlock(&oscc->oscc_lock);
+ break;
+ }
+ case -EROFS:
+ oscc->oscc_flags |= OSCC_FLAG_RDONLY;
+ case -ENOSPC:
+ case -EFBIG:
+ if (rc != -EROFS) {
+ oscc->oscc_flags |= OSCC_FLAG_NOSPC;
+ if (body && rc == -ENOSPC) {
+ oscc->oscc_last_id = body->oa.o_id;
+ oscc->oscc_grow_count = OST_MIN_PRECREATE;
+ }
+ }
+ cfs_spin_unlock(&oscc->oscc_lock);
+ DEBUG_REQ(D_INODE, req, "OST out of space, flagging");
+ break;
+ case -EIO: {
+ /* filter always set body->oa.o_id as the last_id
+ * of filter (see filter_handle_precreate for detail)*/
+ if (body && body->oa.o_id > oscc->oscc_last_id)
+ oscc->oscc_last_id = body->oa.o_id;
+ cfs_spin_unlock(&oscc->oscc_lock);
+ break;
+ }
+ case -EINTR:
+ case -EWOULDBLOCK: {
+ /* aka EAGAIN we should not delay create if import failed -
+ * this avoid client stick in create and avoid race with
+ * delorphan */
+ /* EINTR say - old create request is killed due mds<>ost
+ * eviction - OSCC_FLAG_RECOVERING can already set due
+ * IMP_DISCONN event */
+ oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
+ /* oscc->oscc_grow_count = OST_MIN_PRECREATE; */
+ cfs_spin_unlock(&oscc->oscc_lock);
+ break;
+ }
+ default: {
+ oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
+ oscc->oscc_grow_count = OST_MIN_PRECREATE;
+ cfs_spin_unlock(&oscc->oscc_lock);
+ DEBUG_REQ(D_ERROR, req,
+ "Unknown rc %d from async create: failing oscc", rc);
+ ptlrpc_fail_import(req->rq_import,
+ lustre_msg_get_conn_cnt(req->rq_reqmsg));
+ }
+ }
+
+ CDEBUG(D_HA, "preallocated through id "LPU64" (next to use "LPU64")\n",
+ oscc->oscc_last_id, oscc->oscc_next_id);
+
+ cfs_spin_lock(&oscc->oscc_lock);
+ cfs_list_for_each_entry_safe(fake_req, pos,
+ &oscc->oscc_wait_create_list, rq_list) {
+ if (handle_async_create(fake_req, rc) == -EAGAIN) {
+ oscc_internal_create(oscc);
+ /* sending request should be never fail because
+ * osc use preallocated requests pool */
+ GOTO(exit_wakeup, rc);
+ }
+ }
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+exit_wakeup:
+ cfs_waitq_signal(&oscc->oscc_waitq);
+ RETURN(rc);
+}
+
+static int oscc_internal_create(struct osc_creator *oscc)
+{
+ struct ptlrpc_request *request;
+ struct ost_body *body;
+ ENTRY;
+
+ LASSERT_SPIN_LOCKED(&oscc->oscc_lock);
+
+ /* Do not check for a degraded OST here - bug21563/bug18539 */
+ if (oscc->oscc_flags & OSCC_FLAG_RECOVERING) {
+ cfs_spin_unlock(&oscc->oscc_lock);
+ RETURN(0);
+ }
+
+ /* we need check it before OSCC_FLAG_CREATING - because need
+ * see lower number of precreate objects */
+ if (oscc->oscc_grow_count < oscc->oscc_max_grow_count &&
+ ((oscc->oscc_flags & OSCC_FLAG_LOW) == 0) &&
+ (__s64)(oscc->oscc_last_id - oscc->oscc_next_id) <=
+ (oscc->oscc_grow_count / 4 + 1)) {
+ oscc->oscc_flags |= OSCC_FLAG_LOW;
+ oscc->oscc_grow_count *= 2;
+ }
+
+ if (oscc->oscc_flags & OSCC_FLAG_CREATING) {
+ cfs_spin_unlock(&oscc->oscc_lock);
+ RETURN(0);
+ }
+
+ if (oscc->oscc_grow_count > oscc->oscc_max_grow_count / 2)
+ oscc->oscc_grow_count = oscc->oscc_max_grow_count / 2;
+
+ oscc->oscc_flags |= OSCC_FLAG_CREATING;
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+ request = ptlrpc_request_alloc_pack(oscc->oscc_obd->u.cli.cl_import,
+ &RQF_OST_CREATE,
+ LUSTRE_OST_VERSION, OST_CREATE);
+ if (request == NULL) {
+ cfs_spin_lock(&oscc->oscc_lock);
+ oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
+ cfs_spin_unlock(&oscc->oscc_lock);
+ RETURN(-ENOMEM);
+ }
+
+ request->rq_request_portal = OST_CREATE_PORTAL;
+ ptlrpc_at_set_req_timeout(request);
+ body = req_capsule_client_get(&request->rq_pill, &RMF_OST_BODY);
+
+ cfs_spin_lock(&oscc->oscc_lock);
+
+ if (likely(fid_seq_is_mdt(oscc->oscc_oa.o_seq))) {
+ body->oa.o_oi.oi_seq = oscc->oscc_oa.o_seq;
+ body->oa.o_oi.oi_id = oscc->oscc_last_id +
+ oscc->oscc_grow_count;
+ } else {
+ /*Just warning here currently, since not sure how fid-on-ost
+ *will be implemented here */
+ CWARN("o_seq: "LPU64" is not indicate any MDTs.\n",
+ oscc->oscc_oa.o_seq);
+ }
+
+ body->oa.o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
+ request->rq_async_args.space[0] = oscc->oscc_grow_count;
+ cfs_spin_unlock(&oscc->oscc_lock);
+ CDEBUG(D_RPCTRACE, "prealloc through id "LPU64" (last seen "LPU64")\n",
+ body->oa.o_id, oscc->oscc_last_id);
+
+ /* we should not resend create request - anyway we will have delorphan
+ * and kill these objects */
+ request->rq_no_delay = request->rq_no_resend = 1;
+ ptlrpc_request_set_replen(request);
+
+ request->rq_async_args.pointer_arg[0] = oscc;
+ request->rq_interpret_reply = osc_interpret_create;
+ ptlrpcd_add_req(request, PSCOPE_OTHER);
+
+ RETURN(0);
+}
+
+static int oscc_has_objects_nolock(struct osc_creator *oscc, int count)
+{
+ return ((__s64)(oscc->oscc_last_id - oscc->oscc_next_id) >= count);
+}
+
+
+static int oscc_has_objects(struct osc_creator *oscc, int count)
+{
+ int have_objs;
+
+ cfs_spin_lock(&oscc->oscc_lock);
+ have_objs = oscc_has_objects_nolock(oscc, count);
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+ return have_objs;
+}
+
+static int oscc_wait_for_objects(struct osc_creator *oscc, int count)
+{
+ int have_objs;
+ int ost_unusable;
+
+ ost_unusable = oscc->oscc_obd->u.cli.cl_import->imp_invalid;
+
+ cfs_spin_lock(&oscc->oscc_lock);
+ ost_unusable |= (OSCC_FLAG_NOSPC | OSCC_FLAG_RDONLY |
+ OSCC_FLAG_EXITING) & oscc->oscc_flags;
+ have_objs = oscc_has_objects_nolock(oscc, count);
+
+ if (!ost_unusable && !have_objs)
+ /* they release lock himself */
+ have_objs = oscc_internal_create(oscc);
+ else
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+ return have_objs || ost_unusable;
+}
+
+static int oscc_precreate(struct osc_creator *oscc)
+{
+ struct l_wait_info lwi;
+ int rc = 0;
+ ENTRY;
+
+ if (oscc_has_objects(oscc, oscc->oscc_grow_count / 2))
+ RETURN(0);
+
+ /* we should be not block forever - because client's create rpc can
+ * stick in mds for long time and forbid client reconnect */
+ lwi = LWI_TIMEOUT(cfs_timeout_cap(cfs_time_seconds(osc_create_timeout)),
+ NULL, NULL);
+
+ rc = l_wait_event(oscc->oscc_waitq, oscc_wait_for_objects(oscc, 1), &lwi);
+ RETURN(rc);
+}
+
+static int oscc_in_sync(struct osc_creator *oscc)
+{
+ int sync;
+
+ cfs_spin_lock(&oscc->oscc_lock);
+ sync = oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS;
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+ return sync;
+}
+
+/* decide if the OST has remaining object, return value :
+ 0 : the OST has remaining objects, may or may not send precreation RPC.
+ 1 : the OST has no remaining object, and the sent precreation RPC
+ has not been completed yet.
+ 2 : the OST has no remaining object, and will not get any for
+ a potentially very long time
+ 1000 : unusable
+ */
+int osc_precreate(struct obd_export *exp)
+{
+ struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
+ struct obd_import *imp = exp->exp_imp_reverse;
+ int rc;
+ ENTRY;
+
+ LASSERT(oscc != NULL);
+ if (imp != NULL && imp->imp_deactive)
+ GOTO(out_nolock, rc = 1000);
+
+ /* Handle critical states first */
+ cfs_spin_lock(&oscc->oscc_lock);
+ if (oscc->oscc_flags & OSCC_FLAG_NOSPC ||
+ oscc->oscc_flags & OSCC_FLAG_RDONLY ||
+ oscc->oscc_flags & OSCC_FLAG_EXITING)
+ GOTO(out, rc = 1000);
+
+ if ((oscc->oscc_flags & OSCC_FLAG_RECOVERING) ||
+ (oscc->oscc_flags & OSCC_FLAG_DEGRADED))
+ GOTO(out, rc = 2);
+
+ if (oscc_has_objects_nolock(oscc, oscc->oscc_grow_count / 2))
+ GOTO(out, rc = 0);
+
+ /* Return 0, if we have at least one object - bug 22884 */
+ rc = oscc_has_objects_nolock(oscc, 1) ? 0 : 1;
+
+ /* Do not check for OSCC_FLAG_CREATING flag here, let
+ * osc_precreate() call oscc_internal_create() and
+ * adjust oscc_grow_count bug21563 */
+ if (oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS)
+ GOTO(out, rc);
+
+ if (oscc_internal_create(oscc))
+ GOTO(out_nolock, rc = 1000);
+
+ RETURN(rc);
+out:
+ cfs_spin_unlock(&oscc->oscc_lock);
+out_nolock:
+ return rc;
+}
+
+static int handle_async_create(struct ptlrpc_request *req, int rc)
{
- int recov = 0;
+ struct osc_create_async_args *args = ptlrpc_req_async_args(req);
+ struct osc_creator *oscc = args->rq_oscc;
+ struct lov_stripe_md *lsm = args->rq_lsm;
+ struct obd_info *oinfo = args->rq_oinfo;
+ struct obdo *oa = oinfo->oi_oa;
+
+ LASSERT_SPIN_LOCKED(&oscc->oscc_lock);
+
+ if(rc)
+ GOTO(out_wake, rc);
+
+ /* Handle the critical type errors first.
+ * Should we also test cl_import state as well ? */
+ if (oscc->oscc_flags & OSCC_FLAG_EXITING)
+ GOTO(out_wake, rc = -EIO);
+
+ if (oscc->oscc_flags & OSCC_FLAG_NOSPC)
+ GOTO(out_wake, rc = -ENOSPC);
+
+ if (oscc->oscc_flags & OSCC_FLAG_RDONLY)
+ GOTO(out_wake, rc = -EROFS);
+
+ /* should be try wait until recovery finished */
+ if((oscc->oscc_flags & OSCC_FLAG_RECOVERING) ||
+ (oscc->oscc_flags & OSCC_FLAG_DEGRADED))
+ RETURN(-EAGAIN);
+
+ if (oscc_has_objects_nolock(oscc, 1)) {
+ memcpy(oa, &oscc->oscc_oa, sizeof(*oa));
+ oa->o_id = oscc->oscc_next_id;
+ lsm->lsm_object_id = oscc->oscc_next_id;
+ oscc->oscc_next_id++;
+
+ CDEBUG(D_RPCTRACE, " set oscc_next_id = "LPU64"\n",
+ oscc->oscc_next_id);
+ GOTO(out_wake, rc = 0);
+ }
- spin_lock(&oscc->oscc_lock);
- recov = oscc->oscc_flags & OSCC_FLAG_RECOVERING;
- spin_unlock(&oscc->oscc_lock);
+ /* we don't have objects now - continue wait */
+ RETURN(-EAGAIN);
- return recov;
+out_wake:
+
+ rc = oinfo->oi_cb_up(oinfo, rc);
+ ptlrpc_fakereq_finished(req);
+
+ RETURN(rc);
+}
+
+static int async_create_interpret(const struct lu_env *env,
+ struct ptlrpc_request *req, void *data,
+ int rc)
+{
+ struct osc_create_async_args *args = ptlrpc_req_async_args(req);
+ struct osc_creator *oscc = args->rq_oscc;
+ int ret;
+
+ cfs_spin_lock(&oscc->oscc_lock);
+ ret = handle_async_create(req, rc);
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+ return ret;
+}
+
+int osc_create_async(struct obd_export *exp, struct obd_info *oinfo,
+ struct lov_stripe_md **ea, struct obd_trans_info *oti)
+{
+ int rc;
+ struct ptlrpc_request *fake_req;
+ struct osc_create_async_args *args;
+ struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
+ struct obdo *oa = oinfo->oi_oa;
+ ENTRY;
+
+ if ((oa->o_valid & OBD_MD_FLGROUP) && !fid_seq_is_mdt(oa->o_seq)) {
+ rc = osc_real_create(exp, oinfo->oi_oa, ea, oti);
+ rc = oinfo->oi_cb_up(oinfo, rc);
+ RETURN(rc);
+ }
+
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ oa->o_flags == OBD_FL_RECREATE_OBJS) {
+ rc = osc_real_create(exp, oinfo->oi_oa, ea, oti);
+ rc = oinfo->oi_cb_up(oinfo, rc);
+ RETURN(rc);
+ }
+
+ LASSERT((*ea) != NULL);
+
+ fake_req = ptlrpc_prep_fakereq(oscc->oscc_obd->u.cli.cl_import,
+ osc_create_timeout,
+ async_create_interpret);
+ if (fake_req == NULL) {
+ rc = oinfo->oi_cb_up(oinfo, -ENOMEM);
+ RETURN(-ENOMEM);
+ }
+
+ args = ptlrpc_req_async_args(fake_req);
+ CLASSERT(sizeof(*args) <= sizeof(fake_req->rq_async_args));
+
+ args->rq_oscc = oscc;
+ args->rq_lsm = *ea;
+ args->rq_oinfo = oinfo;
+
+ cfs_spin_lock(&oscc->oscc_lock);
+ /* try fast path */
+ rc = handle_async_create(fake_req, 0);
+ if (rc == -EAGAIN) {
+ int is_add;
+ /* we not have objects - try wait */
+ is_add = ptlrpcd_add_req(fake_req, PSCOPE_OTHER);
+ if (!is_add)
+ cfs_list_add(&fake_req->rq_list,
+ &oscc->oscc_wait_create_list);
+ else
+ rc = is_add;
+ }
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+ if (rc != -EAGAIN)
+ /* need free request if was error hit or
+ * objects already allocated */
+ ptlrpc_req_finished(fake_req);
+ else
+ /* EAGAIN mean - request is delayed */
+ rc = 0;
+
+ RETURN(rc);
}
-/* this only is used now for deleting orphanes */
int osc_create(struct obd_export *exp, struct obdo *oa,
- void *acl, int acl_size, struct lov_stripe_md **ea,
- struct obd_trans_info *oti)
+ struct lov_stripe_md **ea, struct obd_trans_info *oti)
{
struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
- int rc = 0, try_again = 1;
+ struct obd_import *imp = exp->exp_obd->u.cli.cl_import;
+ struct lov_stripe_md *lsm;
+ int del_orphan = 0, rc = 0;
ENTRY;
LASSERT(oa);
LASSERT(ea);
- LASSERT(oa->o_gr > 0);
LASSERT(oa->o_valid & OBD_MD_FLGROUP);
- LASSERT(acl == NULL && acl_size == 0);
- if (oa->o_gr == FILTER_GROUP_LLOG || oa->o_gr == FILTER_GROUP_ECHO)
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ oa->o_flags == OBD_FL_RECREATE_OBJS) {
+ RETURN(osc_real_create(exp, oa, ea, oti));
+ }
+
+ if (!fid_seq_is_mdt(oa->o_seq))
RETURN(osc_real_create(exp, oa, ea, oti));
/* this is the special case where create removes orphans */
- if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ if (oa->o_valid & OBD_MD_FLFLAGS &&
oa->o_flags == OBD_FL_DELORPHAN) {
- spin_lock(&oscc->oscc_lock);
+ cfs_spin_lock(&oscc->oscc_lock);
if (oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS) {
- spin_unlock(&oscc->oscc_lock);
- return -EBUSY;
+ cfs_spin_unlock(&oscc->oscc_lock);
+ RETURN(-EBUSY);
}
if (!(oscc->oscc_flags & OSCC_FLAG_RECOVERING)) {
- spin_unlock(&oscc->oscc_lock);
- return 0;
+ cfs_spin_unlock(&oscc->oscc_lock);
+ RETURN(0);
}
+
oscc->oscc_flags |= OSCC_FLAG_SYNC_IN_PROGRESS;
- spin_unlock(&oscc->oscc_lock);
- CDEBUG(D_HA, "%s; oscc recovery started\n",
- exp->exp_obd->obd_name);
- LASSERT(oscc->oscc_flags & OSCC_FLAG_RECOVERING);
+ /* seting flag LOW we prevent extra grow precreate size
+ * and enforce use last assigned size */
+ oscc->oscc_flags |= OSCC_FLAG_LOW;
+ cfs_spin_unlock(&oscc->oscc_lock);
+ CDEBUG(D_HA, "%s: oscc recovery started - delete to "LPU64"\n",
+ oscc->oscc_obd->obd_name, oscc->oscc_next_id - 1);
- CDEBUG(D_HA, "%s: deleting to next_id: "LPU64"\n",
- oscc->oscc_obd->obd_name, oa->o_id);
+ del_orphan = 1;
+
+ /* delete from next_id on up */
+ oa->o_valid |= OBD_MD_FLID;
+ oa->o_id = oscc->oscc_next_id - 1;
rc = osc_real_create(exp, oa, ea, NULL);
- if (oscc->oscc_obd == NULL) {
- CWARN("the obd for oscc %p has been freed\n", oscc);
- RETURN(rc);
- }
- spin_lock(&oscc->oscc_lock);
+ cfs_spin_lock(&oscc->oscc_lock);
oscc->oscc_flags &= ~OSCC_FLAG_SYNC_IN_PROGRESS;
if (rc == 0 || rc == -ENOSPC) {
+ struct obd_connect_data *ocd;
+
if (rc == -ENOSPC)
oscc->oscc_flags |= OSCC_FLAG_NOSPC;
oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
- CDEBUG(D_HA, "%s: oscc recovery finished: %d\n",
- oscc->oscc_obd->obd_name, rc);
- wake_up(&oscc->oscc_waitq);
+
+ oscc->oscc_last_id = oa->o_id;
+ ocd = &imp->imp_connect_data;
+ if (ocd->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN) {
+ /*
+ * The OST reports back in oa->o_id from where
+ * we should restart in order to skip orphan
+ * objects
+ */
+ CDEBUG(D_HA, "%s: Skip orphan set, reset last "
+ "objid\n", oscc->oscc_obd->obd_name);
+ oscc->oscc_next_id = oa->o_id + 1;
+ }
+
+ /* sanity check for next objid. see bug 17025 */
+ LASSERT(oscc->oscc_next_id == oa->o_id + 1);
+
+ CDEBUG(D_HA, "%s: oscc recovery finished, last_id: "
+ LPU64", rc: %d\n", oscc->oscc_obd->obd_name,
+ oscc->oscc_last_id, rc);
} else {
CDEBUG(D_ERROR, "%s: oscc recovery failed: %d\n",
oscc->oscc_obd->obd_name, rc);
}
- spin_unlock(&oscc->oscc_lock);
- RETURN(rc);
+
+ cfs_waitq_signal(&oscc->oscc_waitq);
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+ if (rc < 0)
+ RETURN(rc);
}
- while (try_again) {
- /* If orphans are being recovered, then we must wait until
- it is finished before we can continue with create. */
- if (oscc_recovering(oscc)) {
- struct l_wait_info lwi;
-
- CDEBUG(D_HA,"%p: oscc recovery in progress, waiting\n",
- oscc);
-
- lwi = LWI_TIMEOUT(MAX(obd_timeout*HZ/4, 1), NULL, NULL);
- rc = l_wait_event(oscc->oscc_waitq,
- !oscc_recovering(oscc), &lwi);
- LASSERT(rc == 0 || rc == -ETIMEDOUT);
- if (rc == -ETIMEDOUT) {
- CDEBUG(D_ERROR,"%p: timeout waiting on recovery\n",
- oscc);
- portals_debug_dumplog();
- RETURN(rc);
- }
- CDEBUG(D_HA, "%p: oscc recovery over, waking up\n",
- oscc);
- }
+ lsm = *ea;
+ if (lsm == NULL) {
+ rc = obd_alloc_memmd(exp, &lsm);
+ if (rc < 0)
+ RETURN(rc);
+ }
- spin_lock(&oscc->oscc_lock);
- if (oscc->oscc_flags & OSCC_FLAG_EXITING) {
- spin_unlock(&oscc->oscc_lock);
+ while (1) {
+ if (oscc_in_sync(oscc))
+ CDEBUG(D_HA,"%s: oscc recovery in progress, waiting\n",
+ oscc->oscc_obd->obd_name);
+
+ rc = oscc_precreate(oscc);
+ if (rc)
+ CDEBUG(D_HA,"%s: error create %d\n",
+ oscc->oscc_obd->obd_name, rc);
+
+ cfs_spin_lock(&oscc->oscc_lock);
+
+ /* wakeup but recovery did not finished */
+ if ((oscc->oscc_obd->u.cli.cl_import->imp_invalid) ||
+ (oscc->oscc_flags & OSCC_FLAG_RECOVERING)) {
+ rc = -EIO;
+ cfs_spin_unlock(&oscc->oscc_lock);
break;
}
if (oscc->oscc_flags & OSCC_FLAG_NOSPC) {
rc = -ENOSPC;
- spin_unlock(&oscc->oscc_lock);
+ cfs_spin_unlock(&oscc->oscc_lock);
break;
}
- oscc->oscc_next_id++;
- oa->o_id = oscc->oscc_next_id;
- try_again = 0;
- spin_unlock(&oscc->oscc_lock);
+ if (oscc->oscc_flags & OSCC_FLAG_RDONLY) {
+ rc = -EROFS;
+ cfs_spin_unlock(&oscc->oscc_lock);
+ break;
+ }
+
+ // Should we report -EIO error ?
+ if (oscc->oscc_flags & OSCC_FLAG_EXITING) {
+ cfs_spin_unlock(&oscc->oscc_lock);
+ break;
+ }
+
+ /**
+ * If this is DELORPHAN process, no need create object here,
+ * otherwise this will create a gap of object id, and MDS
+ * might create some orphan log (mds_lov_update_objids), then
+ * remove objects wrongly on OST. Bug 21379.
+ */
+ if (oa->o_valid & OBD_MD_FLFLAGS &&
+ oa->o_flags == OBD_FL_DELORPHAN) {
+ cfs_spin_unlock(&oscc->oscc_lock);
+ break;
+ }
+
+ if (oscc_has_objects_nolock(oscc, 1)) {
+ memcpy(oa, &oscc->oscc_oa, sizeof(*oa));
+ oa->o_id = oscc->oscc_next_id;
+ lsm->lsm_object_id = oscc->oscc_next_id;
+ *ea = lsm;
+ oscc->oscc_next_id++;
+ cfs_spin_unlock(&oscc->oscc_lock);
+
+ CDEBUG(D_RPCTRACE, "%s: set oscc_next_id = "LPU64"\n",
+ exp->exp_obd->obd_name, oscc->oscc_next_id);
+ break;
+ }
- CDEBUG(D_HA, "%s: returning objid "LPU64"\n",
- oscc->oscc_obd->u.cli.cl_import->imp_target_uuid.uuid,
- oa->o_id);
+ cfs_spin_unlock(&oscc->oscc_lock);
}
+ if (rc == 0) {
+ CDEBUG(D_INFO, "%s: returning objid "LPU64"\n",
+ obd2cli_tgt(oscc->oscc_obd), lsm->lsm_object_id);
+ } else {
+ if (*ea == NULL)
+ obd_free_memmd(exp, &lsm);
+ if (del_orphan != 0 && rc != -EIO)
+ /* Ignore non-IO precreate error for clear orphan */
+ rc = 0;
+ }
RETURN(rc);
}
return;
oscc = &obd->u.cli.cl_oscc;
+
memset(oscc, 0, sizeof(*oscc));
+ cfs_waitq_init(&oscc->oscc_waitq);
+ cfs_spin_lock_init(&oscc->oscc_lock);
oscc->oscc_obd = obd;
- spin_lock_init(&oscc->oscc_lock);
+ oscc->oscc_grow_count = OST_MIN_PRECREATE;
+ oscc->oscc_max_grow_count = OST_MAX_PRECREATE;
+
+ oscc->oscc_next_id = 2;
+ oscc->oscc_last_id = 1;
oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
- init_waitqueue_head(&oscc->oscc_waitq);
+
+ CFS_INIT_LIST_HEAD(&oscc->oscc_wait_create_list);
+
+ /* XXX the export handle should give the oscc the last object */
+ /* oed->oed_oscc.oscc_last_id = exph->....; */
+}
+
+void oscc_fini(struct obd_device *obd)
+{
+ struct osc_creator *oscc = &obd->u.cli.cl_oscc;
+ ENTRY;
+
+
+ cfs_spin_lock(&oscc->oscc_lock);
+ oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
+ oscc->oscc_flags |= OSCC_FLAG_EXITING;
+ cfs_spin_unlock(&oscc->oscc_lock);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff