+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * 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
- *
- * 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.
- *
- * Copyright (c) 2012, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lov/lov_log.c
- *
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Mike Shaver <shaver@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-#ifdef __KERNEL__
-#include <libcfs/libcfs.h>
-#else
-#include <liblustre.h>
-#endif
-
-#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 <obd_class.h>
-#include <obd_lov.h>
-#include <obd_ost.h>
-#include <lprocfs_status.h>
-#include <lustre_log.h>
-
-#include "lov_internal.h"
-
-/* Add log records for each OSC that this object is striped over, and return
- * cookies for each one. We _would_ have nice abstraction here, except that
- * we need to keep cookies in stripe order, even if some are NULL, so that
- * the right cookies are passed back to the right OSTs at the client side.
- * Unset cookies should be all-zero (which will never occur naturally). */
-static int lov_llog_origin_add(const struct lu_env *env,
- struct llog_ctxt *ctxt,
- struct llog_rec_hdr *rec,
- struct lov_stripe_md *lsm,
- struct llog_cookie *logcookies, int numcookies)
-{
- struct obd_device *obd = ctxt->loc_obd;
- struct lov_obd *lov = &obd->u.lov;
- int i, rc = 0, cookies = 0;
- ENTRY;
-
- LASSERTF(logcookies && numcookies >= lsm->lsm_stripe_count,
- "logcookies %p, numcookies %d lsm->lsm_stripe_count %d \n",
- logcookies, numcookies, lsm->lsm_stripe_count);
-
- for (i = 0; i < lsm->lsm_stripe_count; i++) {
- struct lov_oinfo *loi = lsm->lsm_oinfo[i];
- struct obd_device *child =
- lov->lov_tgts[loi->loi_ost_idx]->ltd_exp->exp_obd;
- struct llog_ctxt *cctxt = llog_get_context(child, ctxt->loc_idx);
-
- /* fill mds unlink/setattr log record */
- switch (rec->lrh_type) {
- case MDS_UNLINK_REC: {
- struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec;
- lur->lur_oid = ostid_id(&loi->loi_oi);
- lur->lur_oseq = (__u32)ostid_seq(&loi->loi_oi);
- break;
- }
- case MDS_SETATTR64_REC: {
- struct llog_setattr64_rec *lsr = (struct llog_setattr64_rec *)rec;
- lsr->lsr_oi = loi->loi_oi;
- break;
- }
- default:
- break;
- }
-
- /* inject error in llog_obd_add() below */
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_FAIL_LOV_LOG_ADD)) {
- llog_ctxt_put(cctxt);
- cctxt = NULL;
- }
- rc = llog_obd_add(env, cctxt, rec, NULL, logcookies + cookies,
- numcookies - cookies);
- llog_ctxt_put(cctxt);
- if (rc < 0) {
- CERROR("Can't add llog (rc = %d) for stripe %d\n",
- rc, cookies);
- memset(logcookies + cookies, 0,
- sizeof(struct llog_cookie));
- rc = 1; /* skip this cookie */
- }
- /* Note that rc is always 1 if llog_obd_add was successful */
- cookies += rc;
- }
- RETURN(cookies);
-}
-
-static int lov_llog_origin_connect(struct llog_ctxt *ctxt,
- struct llog_logid *logid,
- struct llog_gen *gen,
- struct obd_uuid *uuid)
-{
- struct obd_device *obd = ctxt->loc_obd;
- struct lov_obd *lov = &obd->u.lov;
- int i, rc = 0, err = 0;
- ENTRY;
-
- obd_getref(obd);
- for (i = 0; i < lov->desc.ld_tgt_count; i++) {
- struct obd_device *child;
- struct llog_ctxt *cctxt;
-
- if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
- continue;
- if (uuid && !obd_uuid_equals(uuid, &lov->lov_tgts[i]->ltd_uuid))
- continue;
- CDEBUG(D_CONFIG, "connect %d/%d\n", i, lov->desc.ld_tgt_count);
- child = lov->lov_tgts[i]->ltd_exp->exp_obd;
- cctxt = llog_get_context(child, ctxt->loc_idx);
- rc = llog_connect(cctxt, logid, gen, uuid);
- llog_ctxt_put(cctxt);
-
- if (rc) {
- CERROR("error osc_llog_connect tgt %d (%d)\n", i, rc);
- if (!err)
- err = rc;
- }
- }
- obd_putref(obd);
-
- RETURN(err);
-}
-
-/* the replicators commit callback */
-static int lov_llog_repl_cancel(const struct lu_env *env,
- struct llog_ctxt *ctxt,
- struct lov_stripe_md *lsm,
- int count, struct llog_cookie *cookies,
- int flags)
-{
- struct lov_obd *lov;
- struct obd_device *obd = ctxt->loc_obd;
- int rc = 0, i;
- ENTRY;
-
- LASSERT(lsm != NULL);
- LASSERT(count == lsm->lsm_stripe_count);
-
- lov = &obd->u.lov;
- obd_getref(obd);
- for (i = 0; i < count; i++, cookies++) {
- struct lov_oinfo *loi = lsm->lsm_oinfo[i];
- struct obd_device *child =
- lov->lov_tgts[loi->loi_ost_idx]->ltd_exp->exp_obd;
- struct llog_ctxt *cctxt =
- llog_get_context(child, ctxt->loc_idx);
- int err;
-
- err = llog_cancel(env, cctxt, NULL, 1, cookies, flags);
- llog_ctxt_put(cctxt);
- if (err && lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
- CERROR("%s: objid "DOSTID" subobj "DOSTID
- " on OST idx %d: rc = %d\n",
- obd->obd_name, POSTID(&lsm->lsm_oi),
- POSTID(&loi->loi_oi), loi->loi_ost_idx, err);
- if (!rc)
- rc = err;
- }
- }
- obd_putref(obd);
- RETURN(rc);
-}
-
-static struct llog_operations lov_mds_ost_orig_logops = {
- .lop_obd_add = lov_llog_origin_add,
- .lop_connect = lov_llog_origin_connect,
-};
-
-static struct llog_operations lov_size_repl_logops = {
- .lop_cancel = lov_llog_repl_cancel,
-};
-
-int lov_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
- struct obd_device *disk_obd, int *index)
-{
- struct lov_obd *lov = &obd->u.lov;
- struct obd_device *child;
- int i, rc = 0;
- ENTRY;
-
- LASSERT(olg == &obd->obd_olg);
- rc = llog_setup(NULL, obd, olg, LLOG_MDS_OST_ORIG_CTXT, disk_obd,
- &lov_mds_ost_orig_logops);
- if (rc)
- RETURN(rc);
-
- rc = llog_setup(NULL, obd, olg, LLOG_SIZE_REPL_CTXT, disk_obd,
- &lov_size_repl_logops);
- if (rc)
- GOTO(err_cleanup, rc);
-
- obd_getref(obd);
- /* count may not match lov->desc.ld_tgt_count during dynamic ost add */
- for (i = 0; i < lov->desc.ld_tgt_count; i++) {
- if (!lov->lov_tgts[i])
- continue;
-
- if (index && i != *index)
- continue;
-
- child = lov->lov_tgts[i]->ltd_obd;
- rc = obd_llog_init(child, &child->obd_olg, disk_obd, &i);
- if (rc)
- CERROR("error osc_llog_init idx %d osc '%s' tgt '%s' "
- "(rc=%d)\n", i, child->obd_name,
- disk_obd->obd_name, rc);
- rc = 0;
- }
- obd_putref(obd);
- GOTO(err_cleanup, rc);
-err_cleanup:
- if (rc) {
- struct llog_ctxt *ctxt =
- llog_get_context(obd, LLOG_SIZE_REPL_CTXT);
- if (ctxt)
- llog_cleanup(NULL, ctxt);
- ctxt = llog_get_context(obd, LLOG_MDS_OST_ORIG_CTXT);
- if (ctxt)
- llog_cleanup(NULL, ctxt);
- }
- return rc;
-}
-
-int lov_llog_finish(struct obd_device *obd, int count)
-{
- struct llog_ctxt *ctxt;
-
- ENTRY;
-
- /* cleanup our llogs only if the ctxts have been setup
- * (client lov doesn't setup, mds lov does). */
- ctxt = llog_get_context(obd, LLOG_MDS_OST_ORIG_CTXT);
- if (ctxt)
- llog_cleanup(NULL, ctxt);
-
- ctxt = llog_get_context(obd, LLOG_SIZE_REPL_CTXT);
- if (ctxt)
- llog_cleanup(NULL, ctxt);
-
- /* lov->tgt llogs are cleaned during osc_cleanup. */
- RETURN(0);
-}
git://git.whamcloud.com / fs / lustre-release.git / commitdiff