* Copyright (C) 2001-2003 Cluster File Systems, Inc.
* Author: Andreas Dilger <adilger@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.
*
* OST<->MDS recovery logging infrastructure.
*
#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>
/* Create a new log handle and add it to the open list.
* This log handle will be closed when all of the records in it are removed.
{
struct llog_handle *loghandle;
struct llog_log_hdr *llh;
- struct llog_logid_rec rec;
+ struct llog_logid_rec rec = { { 0 }, };
int rc, index, bitmap_size;
ENTRY;
llh = cathandle->lgh_hdr;
- bitmap_size = sizeof(llh->llh_bitmap) * 8;
+ bitmap_size = LLOG_BITMAP_SIZE(llh);
index = (cathandle->lgh_last_idx + 1) % bitmap_size;
/* maximum number of available slots in catlog is bitmap_size - 2 */
- if (llh->llh_cat_idx == cpu_to_le32(index)) {
+ if (llh->llh_cat_idx == index) {
CERROR("no free catalog slots for log...\n");
RETURN(ERR_PTR(-ENOSPC));
- } else {
- if (index == 0)
- index = 1;
- if (ext2_set_bit(index, llh->llh_bitmap)) {
- CERROR("argh, index %u already set in log bitmap?\n",
- index);
- LBUG(); /* should never happen */
- }
- cathandle->lgh_last_idx = index;
- llh->llh_count = cpu_to_le32(le32_to_cpu(llh->llh_count) + 1);
- llh->llh_tail.lrt_index = cpu_to_le32(index);
}
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED))
+ RETURN(ERR_PTR(-ENOSPC));
+
rc = llog_create(cathandle->lgh_ctxt, &loghandle, NULL, NULL);
- if (rc)
+ if (rc)
RETURN(ERR_PTR(rc));
-
+
rc = llog_init_handle(loghandle,
LLOG_F_IS_PLAIN | LLOG_F_ZAP_WHEN_EMPTY,
&cathandle->lgh_hdr->llh_tgtuuid);
if (rc)
GOTO(out_destroy, rc);
- CWARN("new recovery log "LPX64":%x for index %u of catalog "LPX64"\n",
- loghandle->lgh_id.lgl_oid, loghandle->lgh_id.lgl_ogen, index,
- cathandle->lgh_id.lgl_oid);
+ if (index == 0)
+ index = 1;
+ if (ext2_set_bit(index, llh->llh_bitmap)) {
+ CERROR("argh, index %u already set in log bitmap?\n",
+ index);
+ LBUG(); /* should never happen */
+ }
+ cathandle->lgh_last_idx = index;
+ llh->llh_count++;
+ llh->llh_tail.lrt_index = index;
+
+ CDEBUG(D_RPCTRACE,"new recovery log "LPX64":%x for index %u of catalog "
+ LPX64"\n", loghandle->lgh_id.lgl_oid, loghandle->lgh_id.lgl_ogen,
+ index, cathandle->lgh_id.lgl_oid);
/* build the record for this log in the catalog */
- rec.lid_hdr.lrh_len = cpu_to_le32(sizeof(rec));
- rec.lid_hdr.lrh_index = cpu_to_le32(index);
- rec.lid_hdr.lrh_type = cpu_to_le32(LLOG_LOGID_MAGIC);
+ rec.lid_hdr.lrh_len = sizeof(rec);
+ rec.lid_hdr.lrh_index = index;
+ rec.lid_hdr.lrh_type = LLOG_LOGID_MAGIC;
rec.lid_id = loghandle->lgh_id;
- rec.lid_tail.lrt_len = cpu_to_le32(sizeof(rec));
- rec.lid_tail.lrt_index = cpu_to_le32(index);
+ rec.lid_tail.lrt_len = sizeof(rec);
+ rec.lid_tail.lrt_index = index;
/* update the catalog: header and record */
rc = llog_write_rec(cathandle, &rec.lid_hdr,
GOTO(out_destroy, rc);
}
- loghandle->lgh_hdr->llh_cat_idx = cpu_to_le32(index);
+ loghandle->lgh_hdr->llh_cat_idx = index;
cathandle->u.chd.chd_current_log = loghandle;
LASSERT(list_empty(&loghandle->u.phd.phd_entry));
list_add_tail(&loghandle->u.phd.phd_entry, &cathandle->u.chd.chd_head);
if (!rc) {
loghandle->u.phd.phd_cat_handle = cathandle;
loghandle->u.phd.phd_cookie.lgc_lgl = cathandle->lgh_id;
- loghandle->u.phd.phd_cookie.lgc_index =
- le32_to_cpu(loghandle->lgh_hdr->llh_cat_idx);
+ loghandle->u.phd.phd_cookie.lgc_index =
+ loghandle->lgh_hdr->llh_cat_idx;
}
out:
loghandle = cathandle->u.chd.chd_current_log;
if (loghandle) {
struct llog_log_hdr *llh = loghandle->lgh_hdr;
- if (loghandle->lgh_last_idx < (sizeof(llh->llh_bitmap)*8) - 1) {
- down_write(&loghandle->lgh_lock);
+ down_write(&loghandle->lgh_lock);
+ if (loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
up_read(&cathandle->lgh_lock);
RETURN(loghandle);
+ } else {
+ up_write(&loghandle->lgh_lock);
}
}
if (!create) {
loghandle = cathandle->u.chd.chd_current_log;
if (loghandle) {
struct llog_log_hdr *llh = loghandle->lgh_hdr;
- if (loghandle->lgh_last_idx < (sizeof(llh->llh_bitmap)*8) - 1) {
- down_write(&loghandle->lgh_lock);
+ down_write(&loghandle->lgh_lock);
+ if (loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
up_write(&cathandle->lgh_lock);
RETURN(loghandle);
+ } else {
+ up_write(&loghandle->lgh_lock);
}
}
CDEBUG(D_INODE, "creating new log\n");
loghandle = llog_cat_new_log(cathandle);
- if (loghandle)
+ if (!IS_ERR(loghandle))
down_write(&loghandle->lgh_lock);
up_write(&cathandle->lgh_lock);
RETURN(loghandle);
int rc;
ENTRY;
- LASSERT(le32_to_cpu(rec->lrh_len) <= LLOG_CHUNK_SIZE);
+ LASSERT(rec->lrh_len <= LLOG_CHUNK_SIZE);
loghandle = llog_cat_current_log(cathandle, 1);
if (IS_ERR(loghandle))
RETURN(PTR_ERR(loghandle));
/* loghandle is already locked by llog_cat_current_log() for us */
rc = llog_write_rec(loghandle, rec, reccookie, 1, buf, -1);
up_write(&loghandle->lgh_lock);
+ if (rc == -ENOSPC) {
+ /* to create a new plain log */
+ loghandle = llog_cat_current_log(cathandle, 1);
+ if (IS_ERR(loghandle))
+ RETURN(PTR_ERR(loghandle));
+ rc = llog_write_rec(loghandle, rec, reccookie, 1, buf, -1);
+ up_write(&loghandle->lgh_lock);
+ }
RETURN(rc);
}
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",
+ CDEBUG(D_RPCTRACE,"cancel plain log at index %u"
+ " of catalog "LPX64"\n",
index, cathandle->lgh_id.lgl_oid);
}
}
struct llog_handle *llh;
int rc;
- if (le32_to_cpu(rec->lrh_type) != LLOG_LOGID_MAGIC) {
+ ENTRY;
+ 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), cat_llh->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, cat_llh->lgh_id.lgl_oid);
rc = llog_cat_id2handle(cat_llh, &llh, &lir->lid_id);
if (rc) {
int rc;
ENTRY;
- LASSERT(llh->llh_flags &cpu_to_le32(LLOG_F_IS_CAT));
+ LASSERT(llh->llh_flags & LLOG_F_IS_CAT);
d.lpd_data = data;
d.lpd_cb = cb;
CWARN("catlog "LPX64" crosses index zero\n",
cat_llh->lgh_id.lgl_oid);
- cd.first_idx = le32_to_cpu(llh->llh_cat_idx);
+ cd.first_idx = llh->llh_cat_idx;
cd.last_idx = 0;
rc = llog_process(cat_llh, llog_cat_process_cb, &d, &cd);
if (rc != 0)
}
EXPORT_SYMBOL(llog_cat_process);
+static int llog_cat_reverse_process_cb(struct llog_handle *cat_llh,
+ struct llog_rec_hdr *rec, void *data)
+{
+ struct llog_process_data *d = data;
+ struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
+ struct llog_handle *llh;
+ int rc;
+
+ if (le32_to_cpu(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,
+ le32_to_cpu(rec->lrh_index), cat_llh->lgh_id.lgl_oid);
+
+ rc = llog_cat_id2handle(cat_llh, &llh, &lir->lid_id);
+ if (rc) {
+ CERROR("Cannot find handle for log "LPX64"\n",
+ lir->lid_id.lgl_oid);
+ RETURN(rc);
+ }
+
+ rc = llog_reverse_process(llh, d->lpd_cb, d->lpd_data, NULL);
+ RETURN(rc);
+}
+
+int llog_cat_reverse_process(struct llog_handle *cat_llh,
+ llog_cb_t cb, void *data)
+{
+ struct llog_process_data d;
+ struct llog_process_cat_data cd;
+ struct llog_log_hdr *llh = cat_llh->lgh_hdr;
+ int rc;
+ ENTRY;
+
+ LASSERT(llh->llh_flags & LLOG_F_IS_CAT);
+ d.lpd_data = data;
+ d.lpd_cb = cb;
+
+ if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
+ CWARN("catalog "LPX64" crosses index zero\n",
+ cat_llh->lgh_id.lgl_oid);
+
+ cd.first_idx = 0;
+ cd.last_idx = cat_llh->lgh_last_idx;
+ rc = llog_reverse_process(cat_llh, llog_cat_reverse_process_cb,
+ &d, &cd);
+ if (rc != 0)
+ RETURN(rc);
+
+ cd.first_idx = le32_to_cpu(llh->llh_cat_idx);
+ cd.last_idx = 0;
+ rc = llog_reverse_process(cat_llh, llog_cat_reverse_process_cb,
+ &d, &cd);
+ } else {
+ rc = llog_reverse_process(cat_llh, llog_cat_reverse_process_cb,
+ &d, NULL);
+ }
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(llog_cat_reverse_process);
+
int llog_cat_set_first_idx(struct llog_handle *cathandle, int index)
{
struct llog_log_hdr *llh = cathandle->lgh_hdr;
int i, bitmap_size, idx;
ENTRY;
- bitmap_size = sizeof(llh->llh_bitmap) * 8;
- if (llh->llh_cat_idx == cpu_to_le32(index - 1)) {
- idx = le32_to_cpu(llh->llh_cat_idx) + 1;
- llh->llh_cat_idx = cpu_to_le32(idx);
+ bitmap_size = LLOG_BITMAP_SIZE(llh);
+ if (llh->llh_cat_idx == (index - 1)) {
+ idx = llh->llh_cat_idx + 1;
+ llh->llh_cat_idx = idx;
if (idx == cathandle->lgh_last_idx)
goto out;
for (i = (index + 1) % bitmap_size;
i != cathandle->lgh_last_idx;
i = (i + 1) % bitmap_size) {
if (!ext2_test_bit(i, llh->llh_bitmap)) {
- idx = le32_to_cpu(llh->llh_cat_idx) + 1;
- llh->llh_cat_idx = cpu_to_le32(idx);
+ idx = llh->llh_cat_idx + 1;
+ llh->llh_cat_idx = idx;
} else if (i == 0) {
llh->llh_cat_idx = 0;
} else {
}
}
out:
- CDEBUG(D_HA, "set catlog "LPX64" first idx %u\n",
- cathandle->lgh_id.lgl_oid,le32_to_cpu(llh->llh_cat_idx));
+ CDEBUG(D_RPCTRACE, "set catlog "LPX64" first idx %u\n",
+ cathandle->lgh_id.lgl_oid, llh->llh_cat_idx);
}
RETURN(0);
down(&cathandle->lgh_lock);
llh = cathandle->lgh_hdr;
- if (cathandle->lgh_file->f_dentry->d_inode->i_size == 0) {
+ if (i_size_read(cathandle->lgh_file->f_dentry->d_inode) == 0) {
llog_write_rec(cathandle, &llh->llh_hdr, NULL, 0, NULL, 0);
write_hdr:
git://git.whamcloud.com / fs / lustre-release.git / blobdiff