-
/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * 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.
+ * Copyright (C) 2005 Cluster File Systems, Inc.
+ *
+ * This file is part of the Lustre file system, http://www.lustre.org
+ * Lustre is a trademark of Cluster File Systems, Inc.
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * 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 DEBUG_SUBSYSTEM S_LOG
#define EXPORT_SYMTAB
#endif
-#ifdef __KERNEL__
-#include <linux/fs.h>
-#else
+#ifndef __KERNEL__
#include <liblustre.h>
#endif
-#include <linux/obd_class.h>
-#include <linux/lustre_log.h>
-#include <portals/list.h>
+#include <obd_class.h>
+#include <lustre_log.h>
+#include <libcfs/list.h>
#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;
+
+ OBD_ALLOC_PTR(ctxt);
+ if (!ctxt)
+ return NULL;
-int llog_setup(struct obd_device *obd, int index, struct obd_device *disk_obd,
- int count, struct llog_logid *logid, struct llog_operations *op)
+ ctxt->loc_obd = obd;
+ 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);
+ if (ctxt->loc_imp) {
+ class_import_put(ctxt->loc_imp);
+ ctxt->loc_imp = NULL;
+ }
+
+ OBD_FREE_PTR(ctxt);
+ return;
+}
+
+int __llog_ctxt_put(struct llog_ctxt *ctxt)
+{
+ struct obd_llog_group *olg = ctxt->loc_olg;
+ struct obd_device *obd;
+ int rc = 0;
+
+ spin_lock(&olg->olg_lock);
+ if (!atomic_dec_and_test(&ctxt->loc_refcount)) {
+ spin_unlock(&olg->olg_lock);
+ return rc;
+ }
+ olg->olg_ctxts[ctxt->loc_idx] = NULL;
+ spin_unlock(&olg->olg_lock);
+
+ obd = ctxt->loc_obd;
+ spin_lock(&obd->obd_dev_lock);
+ spin_unlock(&obd->obd_dev_lock); /* sync with llog ctxt user thread */
+ LASSERT(obd->obd_stopping == 1 || obd->obd_set_up == 0);
+ /* cleanup the llog ctxt here */
+ if (CTXTP(ctxt, cleanup))
+ rc = CTXTP(ctxt, cleanup)(ctxt);
+
+ llog_ctxt_destroy(ctxt);
+ wake_up(&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;
+
+ if (!ctxt) {
+ CERROR("No ctxt\n");
+ RETURN(-ENODEV);
+ }
+
+ olg = ctxt->loc_olg;
+ idx = ctxt->loc_idx;
+
+ /* banlance the ctxt get when calling llog_cleanup */
+ LASSERT(atomic_read(&ctxt->loc_refcount) > 1);
+ llog_ctxt_put(ctxt);
+
+ /* try to free the ctxt */
+ rc = __llog_ctxt_put(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_llog_group *olg, int index,
+ struct obd_device *disk_obd, int count, struct llog_logid *logid,
+ struct llog_operations *op)
{
int rc = 0;
struct llog_ctxt *ctxt;
if (index < 0 || index >= LLOG_MAX_CTXTS)
RETURN(-EFAULT);
- OBD_ALLOC(ctxt, sizeof(*ctxt));
+ LASSERT(olg != NULL);
+ ctxt = llog_group_get_ctxt(olg, index);
+
+ /* in some recovery cases, obd_llog_ctxt might already be set,
+ * but llogs might still be zero, for example in obd_filter recovery */
+ if (ctxt) {
+ /* 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);
+ 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);
+ GOTO(out, rc = 0);
+ }
+ ctxt = llog_new_ctxt(obd);
if (!ctxt)
- RETURN(-ENOMEM);
+ GOTO(out, rc = -ENOMEM);
- obd->obd_llog_ctxt[index] = ctxt;
+ rc = llog_group_set_ctxt(olg, ctxt, index);
+ if (rc) {
+ llog_ctxt_destroy(ctxt);
+ if (rc == -EEXIST)
+ rc = 0;
+ GOTO(out, rc);
+ }
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);
if (op->lop_setup)
- rc = op->lop_setup(obd, index, disk_obd, count, logid);
- if (ctxt && rc)
- OBD_FREE(ctxt, sizeof(*ctxt));
+ rc = op->lop_setup(obd, olg, index, disk_obd, count, logid);
+ if (rc) {
+ llog_ctxt_destroy(ctxt);
+ }
+out:
RETURN(rc);
}
EXPORT_SYMBOL(llog_setup);
-int llog_cleanup(struct llog_ctxt *ctxt)
-{
- int rc = 0;
- ENTRY;
-
- down(&ctxt->loc_sem);
- LASSERT(ctxt);
-
- if (CTXTP(ctxt, cleanup))
- rc = CTXTP(ctxt, cleanup)(ctxt);
-
- ctxt->loc_obd->obd_llog_ctxt[ctxt->loc_idx] = NULL;
- class_export_put(ctxt->loc_exp);
- ctxt->loc_exp = NULL;
- up(&ctxt->loc_sem);
- OBD_FREE(ctxt, sizeof(*ctxt));
-
- RETURN(rc);
-}
-EXPORT_SYMBOL(llog_cleanup);
-
int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp)
{
int rc = 0;
if (!ctxt)
RETURN(0);
- down(&ctxt->loc_sem);
- if (ctxt->loc_llcd && CTXTP(ctxt, sync))
+
+ if (CTXTP(ctxt, sync))
rc = CTXTP(ctxt, sync)(ctxt, exp);
- else
- up(&ctxt->loc_sem);
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(struct llog_ctxt *ctxt, struct llog_rec_hdr *rec,
+ struct lov_stripe_md *lsm, struct llog_cookie *logcookies,
+ int numcookies)
{
+ __u32 cap;
int rc;
ENTRY;
- LASSERT(ctxt);
- down(&ctxt->loc_sem);
+ if (!ctxt) {
+ CERROR("No ctxt\n");
+ RETURN(-ENODEV);
+ }
+
CTXT_CHECK_OP(ctxt, add, -EOPNOTSUPP);
-
+ cap = current->cap_effective;
+ cap_raise(current->cap_effective, CAP_SYS_RESOURCE);
rc = CTXTP(ctxt, add)(ctxt, rec, lsm, logcookies, numcookies);
- up(&ctxt->loc_sem);
+ current->cap_effective = cap;
RETURN(rc);
}
EXPORT_SYMBOL(llog_add);
int rc;
ENTRY;
- LASSERT(ctxt);
+ if (!ctxt) {
+ CERROR("No ctxt\n");
+ RETURN(-ENODEV);
+ }
+
CTXT_CHECK_OP(ctxt, cancel, -EOPNOTSUPP);
rc = CTXTP(ctxt, cancel)(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,
+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;
int rc, index;
ENTRY;
- if (le32_to_cpu(rec->lrh_type) != LLOG_LOGID_MAGIC) {
+ if (rec->lrh_type != LLOG_LOGID_MAGIC) {
CERROR("invalid record in catalog\n");
RETURN(-EINVAL);
}
- CWARN("processing log "LPX64":%x at index %u of catalog "LPX64"\n",
- lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
- le32_to_cpu(rec->lrh_index), cathandle->lgh_id.lgl_oid);
+ 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);
+ CERROR("Cannot find handle for log "LPX64"\n",
+ lir->lid_id.lgl_oid);
RETURN(rc);
- }
-
+ }
+
llh = loghandle->lgh_hdr;
- if ((le32_to_cpu(llh->llh_flags) & LLOG_F_ZAP_WHEN_EMPTY) &&
- (le32_to_cpu(llh->llh_count) == 1)) {
+ if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
+ (llh->llh_count == 1)) {
rc = llog_destroy(loghandle);
if (rc)
- CERROR("failure destroying log during postsetup: %d\n", rc);
- LASSERT(rc == 0);
+ CERROR("failure destroying log in postsetup: %d\n", rc);
index = loghandle->u.phd.phd_cookie.lgc_index;
- if (cathandle->u.chd.chd_current_log == loghandle)
- cathandle->u.chd.chd_current_log = NULL;
llog_free_handle(loghandle);
-
+
LASSERT(index);
+ llog_cat_set_first_idx(cathandle, index);
rc = llog_cancel_rec(cathandle, index);
if (rc == 0)
- CWARN("cancel log "LPX64":%x at index %u of catalog "LPX64"\n",
- lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
- le32_to_cpu(rec->lrh_index), cathandle->lgh_id.lgl_oid);
+ 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, int index, struct obd_device *disk_obd,
- int count, struct llog_logid *logid)
+int llog_obd_origin_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_ctxt *ctxt;
struct llog_handle *handle;
- struct obd_run_ctxt saved;
+ struct lvfs_run_ctxt saved;
int rc;
ENTRY;
RETURN(0);
LASSERT(count == 1);
-
- ctxt = llog_get_context(obd, index);
+
+ LASSERT(olg != NULL);
+ ctxt = llog_group_get_ctxt(olg, index);
+
LASSERT(ctxt);
- log_gen_init(ctxt);
+ llog_gen_init(ctxt);
- down(&ctxt->loc_sem);
if (logid->lgl_oid)
rc = llog_create(ctxt, &handle, logid, NULL);
else {
rc = llog_create(ctxt, &handle, NULL, NULL);
- if (!rc)
+ if (!rc)
*logid = handle->lgh_id;
}
- if (rc)
+ if (rc)
GOTO(out, rc);
ctxt->loc_handle = handle;
- push_ctxt(&saved, &disk_obd->obd_ctxt, NULL);
+ push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
rc = llog_init_handle(handle, LLOG_F_IS_CAT, NULL);
- pop_ctxt(&saved, &disk_obd->obd_ctxt, 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);
- if (rc)
+ rc = llog_process(handle, (llog_cb_t)cat_cancel_cb, NULL, NULL);
+ if (rc)
CERROR("llog_process with cat_cancel_cb failed: %d\n", rc);
- out:
- up(&ctxt->loc_sem);
- if (ctxt && rc) {
- obd->obd_llog_ctxt[index] = NULL;
- OBD_FREE(ctxt, sizeof(*ctxt));
- }
+out:
+ llog_ctxt_put(ctxt);
RETURN(rc);
}
EXPORT_SYMBOL(llog_obd_origin_setup);
struct llog_log_hdr *llh;
int rc, index;
ENTRY;
-
+
if (!ctxt)
- return 0;
+ RETURN(0);
cathandle = ctxt->loc_handle;
if (cathandle) {
- list_for_each_entry_safe(loghandle, n, &cathandle->u.chd.chd_head,
- u.phd.phd_entry) {
+ list_for_each_entry_safe(loghandle, n,
+ &cathandle->u.chd.chd_head,
+ u.phd.phd_entry) {
llh = loghandle->lgh_hdr;
- if ((le32_to_cpu(llh->llh_flags) & LLOG_F_ZAP_WHEN_EMPTY) &&
- (le32_to_cpu(llh->llh_count) == 1)) {
+ 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);
- LASSERT(rc == 0);
+ CERROR("failure destroying log during "
+ "cleanup: %d\n", rc);
index = loghandle->u.phd.phd_cookie.lgc_index;
- if (cathandle->u.chd.chd_current_log == loghandle)
- cathandle->u.chd.chd_current_log = NULL;
llog_free_handle(loghandle);
-
+
LASSERT(index);
+ llog_cat_set_first_idx(cathandle, index);
rc = llog_cancel_rec(cathandle, index);
if (rc == 0)
- CWARN("cancel plain log at index %u of catalog "LPX64"\n",
- index, cathandle->lgh_id.lgl_oid);
+ CDEBUG(D_RPCTRACE, "cancel plain log at"
+ "index %u of catalog "LPX64"\n",
+ index,cathandle->lgh_id.lgl_oid);
}
}
llog_cat_put(ctxt->loc_handle);
}
- return 0;
+ 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,
}
EXPORT_SYMBOL(llog_obd_origin_add);
-int llog_cat_initialize(struct obd_device *obd, int count)
+int llog_cat_initialize(struct obd_device *obd, struct obd_llog_group *olg,
+ int count, struct obd_uuid *uuid)
{
- struct llog_logid *idarray;
+ char name[32] = CATLIST;
+ struct llog_catid *idarray = NULL;
int size = sizeof(*idarray) * count;
- char name[32] = "CATLIST";
int rc;
ENTRY;
- OBD_ALLOC(idarray, size);
- if (!idarray)
- RETURN(-ENOMEM);
-
- memset(idarray, 0, size);
+ if (count) {
+ OBD_VMALLOC(idarray, size);
+ if (!idarray)
+ RETURN(-ENOMEM);
+ }
rc = llog_get_cat_list(obd, obd, name, count, idarray);
if (rc) {
GOTO(out, rc);
}
- rc = obd_llog_init(obd, obd, count, idarray);
+ rc = obd_llog_init(obd, olg, obd, count, idarray, uuid);
if (rc) {
CERROR("rc: %d\n", rc);
GOTO(out, rc);
CERROR("rc: %d\n", rc);
GOTO(out, rc);
}
-
+
out:
- OBD_FREE(idarray, size);
+ if (idarray)
+ OBD_VFREE(idarray, size);
RETURN(rc);
}
EXPORT_SYMBOL(llog_cat_initialize);
-int obd_llog_init(struct obd_device *obd, struct obd_device *disk_obd,
- int count, struct llog_logid *logid)
+int obd_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
+ struct obd_device *disk_obd, int count,
+ struct llog_catid *logid, struct obd_uuid *uuid)
{
int rc;
ENTRY;
- OBD_CHECK_OP(obd, llog_init, 0);
+ OBD_CHECK_DT_OP(obd, llog_init, 0);
OBD_COUNTER_INCREMENT(obd, llog_init);
- rc = OBP(obd, llog_init)(obd, disk_obd, count, logid);
+ rc = OBP(obd, llog_init)(obd, olg, disk_obd, count, logid, uuid);
RETURN(rc);
}
EXPORT_SYMBOL(obd_llog_init);
{
int rc;
ENTRY;
- OBD_CHECK_OP(obd, llog_finish, 0);
+ OBD_CHECK_DT_OP(obd, llog_finish, 0);
OBD_COUNTER_INCREMENT(obd, llog_finish);
rc = OBP(obd, llog_finish)(obd, count);
RETURN(rc);
}
EXPORT_SYMBOL(obd_llog_finish);
+
git://git.whamcloud.com / fs / lustre-release.git / blobdiff