-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2005 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * 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.
*
- * 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.
+ * 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).
*
- * 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
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * 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, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_LOG
-#ifndef EXPORT_SYMTAB
-#define EXPORT_SYMTAB
-#endif
-
#ifndef __KERNEL__
#include <liblustre.h>
#endif
#include "llog_internal.h"
/* helper functions for calling the llog obd methods */
+static struct llog_ctxt* llog_new_ctxt(struct obd_device *obd)
+{
+ struct llog_ctxt *ctxt;
-int llog_cleanup(struct llog_ctxt *ctxt)
+ OBD_ALLOC_PTR(ctxt);
+ if (!ctxt)
+ return NULL;
+
+ ctxt->loc_obd = obd;
+ cfs_atomic_set(&ctxt->loc_refcount, 1);
+
+ return ctxt;
+}
+
+static void llog_ctxt_destroy(struct llog_ctxt *ctxt)
+{
+ if (ctxt->loc_exp) {
+ class_export_put(ctxt->loc_exp);
+ ctxt->loc_exp = NULL;
+ }
+ if (ctxt->loc_imp) {
+ class_import_put(ctxt->loc_imp);
+ ctxt->loc_imp = NULL;
+ }
+ LASSERT(ctxt->loc_llcd == NULL);
+ OBD_FREE_PTR(ctxt);
+}
+
+int __llog_ctxt_put(struct llog_ctxt *ctxt)
{
+ struct obd_llog_group *olg = ctxt->loc_olg;
+ struct obd_device *obd;
int rc = 0;
- ENTRY;
- if (!ctxt) {
- CERROR("No ctxt\n");
- RETURN(-ENODEV);
+ cfs_spin_lock(&olg->olg_lock);
+ if (!cfs_atomic_dec_and_test(&ctxt->loc_refcount)) {
+ cfs_spin_unlock(&olg->olg_lock);
+ return rc;
}
-
+ olg->olg_ctxts[ctxt->loc_idx] = NULL;
+ cfs_spin_unlock(&olg->olg_lock);
+
+ if (ctxt->loc_lcm)
+ lcm_put(ctxt->loc_lcm);
+
+ obd = ctxt->loc_obd;
+ cfs_spin_lock(&obd->obd_dev_lock);
+ /* sync with llog ctxt user thread */
+ cfs_spin_unlock(&obd->obd_dev_lock);
+
+ /* obd->obd_starting is needed for the case of cleanup
+ * in error case while obd is starting up. */
+ LASSERTF(obd->obd_starting == 1 ||
+ obd->obd_stopping == 1 || obd->obd_set_up == 0,
+ "wrong obd state: %d/%d/%d\n", !!obd->obd_starting,
+ !!obd->obd_stopping, !!obd->obd_set_up);
+
+ /* cleanup the llog ctxt here */
if (CTXTP(ctxt, cleanup))
- rc = CTXTP(ctxt, cleanup)(ctxt);
- ctxt->loc_obd->obd_llog_ctxt[ctxt->loc_idx] = NULL;
+ rc = CTXTP(ctxt, cleanup)(NULL, ctxt);
- if (ctxt->loc_exp)
- class_export_put(ctxt->loc_exp);
- OBD_FREE(ctxt, sizeof(*ctxt));
+ llog_ctxt_destroy(ctxt);
+ cfs_waitq_signal(&olg->olg_waitq);
+ return rc;
+}
+EXPORT_SYMBOL(__llog_ctxt_put);
+
+int llog_cleanup(struct llog_ctxt *ctxt)
+{
+ struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
+ struct obd_llog_group *olg;
+ int rc, idx;
+ ENTRY;
+
+ LASSERT(ctxt != NULL);
+ LASSERT(ctxt != LP_POISON);
+
+ olg = ctxt->loc_olg;
+ LASSERT(olg != NULL);
+ LASSERT(olg != LP_POISON);
+
+ idx = ctxt->loc_idx;
+
+ /*
+ * Banlance the ctxt get when calling llog_cleanup()
+ */
+ LASSERT(cfs_atomic_read(&ctxt->loc_refcount) < LI_POISON);
+ LASSERT(cfs_atomic_read(&ctxt->loc_refcount) > 1);
+ llog_ctxt_put(ctxt);
+
+ /*
+ * Try to free the ctxt.
+ */
+ rc = __llog_ctxt_put(ctxt);
+ if (rc)
+ CERROR("Error %d while cleaning up ctxt %p\n",
+ rc, ctxt);
+
+ l_wait_event(olg->olg_waitq,
+ llog_group_ctxt_null(olg, idx), &lwi);
RETURN(rc);
}
EXPORT_SYMBOL(llog_cleanup);
-int llog_setup(struct obd_device *obd, struct obd_llogs *llogs, int index,
- struct obd_device *disk_obd, int count, struct llog_logid *logid,
- struct llog_operations *op)
+int llog_setup_named(struct obd_device *obd, struct obd_llog_group *olg,
+ int index, struct obd_device *disk_obd, int count,
+ struct llog_logid *logid, const char *logname,
+ struct llog_operations *op)
{
- int rc = 0;
struct llog_ctxt *ctxt;
+ int rc = 0;
ENTRY;
if (index < 0 || index >= LLOG_MAX_CTXTS)
- RETURN(-EFAULT);
-
- /* in some recovery cases, obd_llog_ctxt might already be set,
- * but llogs might still be zero, for example in obd_filter recovery */
- if (obd->obd_llog_ctxt[index] &&
- (!llogs || (llogs && llogs->llog_ctxt[index]))) {
- /* mds_lov_update_mds might call here multiple times. So if the
- llog is already set up then don't to do it again. */
- CDEBUG(D_CONFIG, "obd %s ctxt %d already set up\n",
- obd->obd_name, index);
- ctxt = obd->obd_llog_ctxt[index];
- LASSERT(ctxt->loc_obd == obd);
- LASSERT(ctxt->loc_exp == disk_obd->obd_self_export);
- LASSERT(ctxt->loc_logops == op);
- GOTO(out, rc = 0);
- }
-
- OBD_ALLOC(ctxt, sizeof(*ctxt));
- if (!ctxt)
- GOTO(out, rc = -ENOMEM);
+ RETURN(-EINVAL);
- if (llogs)
- llogs->llog_ctxt[index] = ctxt;
+ LASSERT(olg != NULL);
- if (!obd->obd_llog_ctxt[index])
- obd->obd_llog_ctxt[index] = ctxt;
+ ctxt = llog_new_ctxt(obd);
+ if (!ctxt)
+ RETURN(-ENOMEM);
ctxt->loc_obd = obd;
- ctxt->loc_exp = class_export_get(disk_obd->obd_self_export);
+ ctxt->loc_olg = olg;
ctxt->loc_idx = index;
ctxt->loc_logops = op;
- sema_init(&ctxt->loc_sem, 1);
+ cfs_mutex_init(&ctxt->loc_mutex);
+ ctxt->loc_exp = class_export_get(disk_obd->obd_self_export);
+ ctxt->loc_flags = LLOG_CTXT_FLAG_UNINITIALIZED;
- if (op->lop_setup)
- rc = op->lop_setup(obd, llogs, index, disk_obd, count, logid);
+ rc = llog_group_set_ctxt(olg, ctxt, index);
+ if (rc) {
+ llog_ctxt_destroy(ctxt);
+ if (rc == -EEXIST) {
+ ctxt = llog_group_get_ctxt(olg, index);
+ if (ctxt) {
+ /*
+ * mds_lov_update_desc() might call here multiple
+ * times. So if the llog is already set up then
+ * don't to do it again.
+ */
+ CDEBUG(D_CONFIG, "obd %s ctxt %d already set up\n",
+ obd->obd_name, index);
+ LASSERT(ctxt->loc_olg == olg);
+ LASSERT(ctxt->loc_obd == obd);
+ LASSERT(ctxt->loc_exp == disk_obd->obd_self_export);
+ LASSERT(ctxt->loc_logops == op);
+ llog_ctxt_put(ctxt);
+ }
+ rc = 0;
+ }
+ RETURN(rc);
+ }
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LLOG_SETUP)) {
+ rc = -ENOTSUPP;
+ } else {
+ if (op->lop_setup)
+ rc = op->lop_setup(NULL, obd, olg, index, disk_obd,
+ count, logid, logname);
+ }
if (rc) {
- obd->obd_llog_ctxt[index] = NULL;
- class_export_put(ctxt->loc_exp);
- OBD_FREE(ctxt, sizeof(*ctxt));
+ CERROR("obd %s ctxt %d lop_setup=%p failed %d\n",
+ obd->obd_name, index, op->lop_setup, rc);
+ llog_ctxt_put(ctxt);
+ } else {
+ CDEBUG(D_CONFIG, "obd %s ctxt %d is initialized\n",
+ obd->obd_name, index);
+ ctxt->loc_flags &= ~LLOG_CTXT_FLAG_UNINITIALIZED;
}
-out:
RETURN(rc);
}
+EXPORT_SYMBOL(llog_setup_named);
+
+int llog_setup(struct obd_device *obd, struct obd_llog_group *olg,
+ int index, struct obd_device *disk_obd, int count,
+ struct llog_logid *logid, struct llog_operations *op)
+{
+ return llog_setup_named(obd,olg,index,disk_obd,count,logid,NULL,op);
+}
EXPORT_SYMBOL(llog_setup);
-int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp)
+int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp, int flags)
{
int rc = 0;
ENTRY;
RETURN(0);
if (CTXTP(ctxt, sync))
- rc = CTXTP(ctxt, sync)(ctxt, exp);
+ rc = CTXTP(ctxt, sync)(ctxt, exp, flags);
RETURN(rc);
}
EXPORT_SYMBOL(llog_sync);
-int llog_add(struct llog_ctxt *ctxt, struct llog_rec_hdr *rec,
- struct lov_stripe_md *lsm, struct llog_cookie *logcookies,
- int numcookies)
+int llog_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)
{
- int rc;
+ int raised, rc;
ENTRY;
if (!ctxt) {
CERROR("No ctxt\n");
RETURN(-ENODEV);
}
-
- CTXT_CHECK_OP(ctxt, add, -EOPNOTSUPP);
- rc = CTXTP(ctxt, add)(ctxt, rec, lsm, logcookies, numcookies);
+ if (ctxt->loc_flags & LLOG_CTXT_FLAG_UNINITIALIZED)
+ RETURN(-ENXIO);
+
+
+ CTXT_CHECK_OP(ctxt, add, -EOPNOTSUPP);
+ raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
+ if (!raised)
+ cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
+ rc = CTXTP(ctxt, add)(env, ctxt, rec, lsm, logcookies,
+ numcookies);
+ if (!raised)
+ cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
RETURN(rc);
}
EXPORT_SYMBOL(llog_add);
-int llog_cancel(struct llog_ctxt *ctxt, struct lov_stripe_md *lsm,
- int count, struct llog_cookie *cookies, int flags)
+int llog_cancel(const struct lu_env *env, struct llog_ctxt *ctxt,
+ struct lov_stripe_md *lsm, int count,
+ struct llog_cookie *cookies, int flags)
{
int rc;
ENTRY;
CERROR("No ctxt\n");
RETURN(-ENODEV);
}
-
+
CTXT_CHECK_OP(ctxt, cancel, -EOPNOTSUPP);
- rc = CTXTP(ctxt, cancel)(ctxt, lsm, count, cookies, flags);
+ rc = CTXTP(ctxt, cancel)(env, ctxt, lsm, count, cookies, flags);
RETURN(rc);
}
EXPORT_SYMBOL(llog_cancel);
-/* callback func for llog_process in llog_obd_origin_setup */
-static int cat_cancel_cb(struct llog_handle *cathandle,
- struct llog_rec_hdr *rec, void *data)
-{
- struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
- struct llog_handle *loghandle;
- struct llog_log_hdr *llh;
- int rc, index;
- ENTRY;
-
- if (rec->lrh_type != LLOG_LOGID_MAGIC) {
- CERROR("invalid record in catalog\n");
- RETURN(-EINVAL);
- }
- CDEBUG(D_HA, "processing log "LPX64":%x at index %u of catalog "
- LPX64"\n", lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
- rec->lrh_index, cathandle->lgh_id.lgl_oid);
-
- rc = llog_cat_id2handle(cathandle, &loghandle, &lir->lid_id);
- if (rc) {
- CERROR("Cannot find handle for log "LPX64"\n",
- lir->lid_id.lgl_oid);
- RETURN(rc);
- }
-
- llh = loghandle->lgh_hdr;
- if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
- (llh->llh_count == 1)) {
- rc = llog_destroy(loghandle);
- if (rc)
- CERROR("failure destroying log in postsetup: %d\n", rc);
-
- index = loghandle->u.phd.phd_cookie.lgc_index;
- llog_free_handle(loghandle);
-
- LASSERT(index);
- llog_cat_set_first_idx(cathandle, index);
- rc = llog_cancel_rec(cathandle, index);
- if (rc == 0)
- CDEBUG(D_HA, "cancel log "LPX64":%x at index %u of catalog "
- LPX64"\n", lir->lid_id.lgl_oid,
- lir->lid_id.lgl_ogen, rec->lrh_index,
- cathandle->lgh_id.lgl_oid);
- }
-
- RETURN(rc);
-}
-
/* lop_setup method for filter/osc */
// XXX how to set exports
-int llog_obd_origin_setup(struct obd_device *obd, struct obd_llogs *llogs,
- int index, struct obd_device *disk_obd, int count,
- struct llog_logid *logid)
+int llog_obd_origin_setup(const struct lu_env *env, struct obd_device *obd,
+ struct obd_llog_group *olg, int index,
+ struct obd_device *disk_obd, int count,
+ struct llog_logid *logid, const char *name)
{
struct llog_ctxt *ctxt;
struct llog_handle *handle;
LASSERT(count == 1);
- if (!llogs)
- ctxt = llog_get_context(obd, index);
- else
- ctxt = llog_get_context_from_llogs(llogs, index);
-
- LASSERT(ctxt);
- llog_gen_init(ctxt);
-
- if (logid->lgl_oid)
- rc = llog_create(ctxt, &handle, logid, NULL);
- else {
- rc = llog_create(ctxt, &handle, NULL, NULL);
- if (!rc)
+ LASSERT(olg != NULL);
+ ctxt = llog_group_get_ctxt(olg, index);
+ if (!ctxt)
+ RETURN(-ENODEV);
+
+ if (logid && logid->lgl_oid) {
+ rc = llog_open(env, ctxt, &handle, logid, NULL,
+ LLOG_OPEN_EXISTS);
+ } else {
+ rc = llog_open_create(env, ctxt, &handle, NULL, (char *)name);
+ if (!rc && logid)
*logid = handle->lgh_id;
}
if (rc)
ctxt->loc_handle = handle;
push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
- rc = llog_init_handle(handle, LLOG_F_IS_CAT, NULL);
+ rc = llog_init_handle(env, handle, LLOG_F_IS_CAT, NULL);
pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
if (rc)
GOTO(out, rc);
- rc = llog_process(handle, (llog_cb_t)cat_cancel_cb, NULL, NULL);
+ rc = llog_process(env, handle, (llog_cb_t)cat_cancel_cb, NULL, NULL);
if (rc)
- CERROR("llog_process with cat_cancel_cb failed: %d\n", rc);
- out:
- RETURN(rc);
+ CERROR("llog_process() with cat_cancel_cb failed: %d\n", rc);
+ GOTO(out, rc);
+out:
+ llog_ctxt_put(ctxt);
+ return rc;
}
EXPORT_SYMBOL(llog_obd_origin_setup);
-int llog_obd_origin_cleanup(struct llog_ctxt *ctxt)
+int llog_obd_origin_cleanup(const struct lu_env *env, struct llog_ctxt *ctxt)
{
- struct llog_handle *cathandle, *n, *loghandle;
- struct llog_log_hdr *llh;
- int rc, index;
- ENTRY;
+ ENTRY;
- if (!ctxt)
- RETURN(0);
+ if (!ctxt)
+ RETURN(0);
- cathandle = ctxt->loc_handle;
- if (cathandle) {
- list_for_each_entry_safe(loghandle, n,
- &cathandle->u.chd.chd_head,
- u.phd.phd_entry) {
- llh = loghandle->lgh_hdr;
- if ((llh->llh_flags &
- LLOG_F_ZAP_WHEN_EMPTY) &&
- (llh->llh_count == 1)) {
- rc = llog_destroy(loghandle);
- if (rc)
- CERROR("failure destroying log during "
- "cleanup: %d\n", rc);
-
- index = loghandle->u.phd.phd_cookie.lgc_index;
- llog_free_handle(loghandle);
-
- LASSERT(index);
- llog_cat_set_first_idx(cathandle, index);
- rc = llog_cancel_rec(cathandle, index);
- if (rc == 0)
- CDEBUG(D_HA, "cancel plain log at index"
- " %u of catalog "LPX64"\n",
- index,cathandle->lgh_id.lgl_oid);
- }
- }
- llog_cat_put(ctxt->loc_handle);
- }
+ if (ctxt->loc_handle)
+ llog_cat_close(env, ctxt->loc_handle);
RETURN(0);
}
EXPORT_SYMBOL(llog_obd_origin_cleanup);
/* add for obdfilter/sz and mds/unlink */
-int llog_obd_origin_add(struct llog_ctxt *ctxt,
- struct llog_rec_hdr *rec, struct lov_stripe_md *lsm,
- struct llog_cookie *logcookies, int numcookies)
+int llog_obd_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 llog_handle *cathandle;
int rc;
cathandle = ctxt->loc_handle;
LASSERT(cathandle != NULL);
- rc = llog_cat_add_rec(cathandle, rec, logcookies, NULL);
- if (rc != 1)
+ rc = llog_cat_add_rec(env, cathandle, rec, logcookies, NULL);
+ if (rc != 0 && rc != 1)
CERROR("write one catalog record failed: %d\n", rc);
RETURN(rc);
}
EXPORT_SYMBOL(llog_obd_origin_add);
-int llog_cat_initialize(struct obd_device *obd, struct obd_llogs *llogs,
- int count, struct obd_uuid *uuid)
-{
- char name[32] = CATLIST;
- struct llog_catid *idarray;
- int size = sizeof(*idarray) * count;
- int rc;
- ENTRY;
-
- OBD_ALLOC(idarray, size);
- if (!idarray)
- RETURN(-ENOMEM);
-
- rc = llog_get_cat_list(obd, obd, name, count, idarray);
- if (rc) {
- CERROR("rc: %d\n", rc);
- GOTO(out, rc);
- }
-
- rc = obd_llog_init(obd, llogs, obd, count, idarray, uuid);
- if (rc) {
- CERROR("rc: %d\n", rc);
- GOTO(out, rc);
- }
-
- rc = llog_put_cat_list(obd, obd, name, count, idarray);
- if (rc) {
- CERROR("rc: %d\n", rc);
- GOTO(out, rc);
- }
-
- out:
- OBD_FREE(idarray, size);
- RETURN(rc);
-}
-EXPORT_SYMBOL(llog_cat_initialize);
-
-int obd_llog_init(struct obd_device *obd, struct obd_llogs *llogs,
- struct obd_device *disk_obd, int count,
- struct llog_catid *logid, struct obd_uuid *uuid)
+int obd_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
+ struct obd_device *disk_obd, int *index)
{
int rc;
ENTRY;
OBD_CHECK_DT_OP(obd, llog_init, 0);
OBD_COUNTER_INCREMENT(obd, llog_init);
- rc = OBP(obd, llog_init)(obd, llogs, disk_obd, count, logid,
- uuid);
+ rc = OBP(obd, llog_init)(obd, olg, disk_obd, index);
RETURN(rc);
}
EXPORT_SYMBOL(obd_llog_init);
}
EXPORT_SYMBOL(obd_llog_finish);
+/* context key constructor/destructor: llog_key_init, llog_key_fini */
+LU_KEY_INIT_FINI(llog, struct llog_thread_info);
+/* context key: llog_thread_key */
+LU_CONTEXT_KEY_DEFINE(llog, LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL);
+LU_KEY_INIT_GENERIC(llog);
+EXPORT_SYMBOL(llog_thread_key);
+
+int llog_info_init(void)
+{
+ llog_key_init_generic(&llog_thread_key, NULL);
+ lu_context_key_register(&llog_thread_key);
+ return 0;
+}
+
+void llog_info_fini(void)
+{
+ lu_context_key_degister(&llog_thread_key);
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff