*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/obdclass/llog_cat.c
*
ENTRY;
- index = (cathandle->lgh_last_idx + 1) %
- (OBD_FAIL_PRECHECK(OBD_FAIL_CAT_RECORDS) ? (cfs_fail_val + 1) :
- LLOG_HDR_BITMAP_SIZE(llh));
+ index = (cathandle->lgh_last_idx + 1) % (llog_max_idx(llh) + 1);
/* check that new llog index will not overlap with the first one.
* - llh_cat_idx is the index just before the first/oldest still in-use
if ((index == llh->llh_cat_idx + 1 && llh->llh_count > 1) ||
(index == 0 && llh->llh_cat_idx == 0)) {
if (cathandle->lgh_name == NULL) {
- CWARN("%s: there are no more free slots in catalog "
- DFID":%x\n",
+ CWARN("%s: there are no more free slots in catalog "DFID"\n",
loghandle2name(loghandle),
- PFID(&cathandle->lgh_id.lgl_oi.oi_fid),
- cathandle->lgh_id.lgl_ogen);
+ PLOGID(&cathandle->lgh_id));
} else {
- CWARN("%s: there are no more free slots in "
- "catalog %s\n", loghandle2name(loghandle),
- cathandle->lgh_name);
+ CWARN("%s: there are no more free slots in catalog %s\n",
+ loghandle2name(loghandle), cathandle->lgh_name);
}
RETURN(-ENOSPC);
}
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED))
+ if (CFS_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED))
RETURN(-ENOSPC);
if (loghandle->lgh_hdr != NULL) {
GOTO(out_destroy, rc);
CDEBUG(D_OTHER, "new plain log "DFID".%u of catalog "DFID"\n",
- PFID(&loghandle->lgh_id.lgl_oi.oi_fid), rec->lid_hdr.lrh_index,
- PFID(&cathandle->lgh_id.lgl_oi.oi_fid));
+ PLOGID(&loghandle->lgh_id), rec->lid_hdr.lrh_index,
+ PLOGID(&cathandle->lgh_id));
loghandle->lgh_hdr->llh_cat_idx = rec->lid_hdr.lrh_index;
if (freespace > (128 << 20))
loghandle->lgh_max_size = 128 << 20;
}
- if (unlikely(OBD_FAIL_PRECHECK(OBD_FAIL_PLAIN_RECORDS) ||
- OBD_FAIL_PRECHECK(OBD_FAIL_CATALOG_FULL_CHECK))) {
+ if (unlikely(CFS_FAIL_PRECHECK(OBD_FAIL_PLAIN_RECORDS) ||
+ CFS_FAIL_PRECHECK(OBD_FAIL_CATALOG_FULL_CHECK))) {
// limit the numer of plain records for test
loghandle->lgh_max_size = loghandle->lgh_hdr_size +
cfs_fail_val * 64;
loghandle->lgh_hdr->llh_flags &= ~LLOG_F_ZAP_WHEN_EMPTY;
/* this is to mimic full log, so another llog_cat_current_log()
* can skip it and ask for another onet */
- loghandle->lgh_last_idx = LLOG_HDR_BITMAP_SIZE(loghandle->lgh_hdr) + 1;
+ loghandle->lgh_last_idx = llog_max_idx(loghandle->lgh_hdr) + 1;
llog_trans_destroy(env, loghandle, th);
if (handle != NULL)
dt_trans_stop(env, dt, handle);
if (!llog_exist(loghandle))
continue;
+ down_write(&loghandle->lgh_lock);
rc = llog_read_header(env, loghandle, NULL);
+ up_write(&loghandle->lgh_lock);
if (rc)
goto unlock;
}
rc = llog_read_header(env, cathandle, NULL);
unlock:
- up_write(&loghandle->lgh_lock);
+ up_write(&cathandle->lgh_lock);
return rc;
}
if (ostid_id(&cgl->lgl_oi) == ostid_id(&logid->lgl_oi) &&
ostid_seq(&cgl->lgl_oi) == ostid_seq(&logid->lgl_oi)) {
- if (cgl->lgl_ogen != logid->lgl_ogen) {
- CWARN("%s: log "DFID" generation %x != %x\n",
- loghandle2name(loghandle),
- PFID(&logid->lgl_oi.oi_fid),
- cgl->lgl_ogen, logid->lgl_ogen);
- continue;
- }
*res = llog_handle_get(loghandle);
if (!*res) {
CERROR("%s: log "DFID" refcount is zero!\n",
loghandle2name(loghandle),
- PFID(&logid->lgl_oi.oi_fid));
+ PLOGID(logid));
continue;
}
loghandle->u.phd.phd_cat_handle = cathandle;
rc = llog_open(env, cathandle->lgh_ctxt, &loghandle, logid, NULL,
LLOG_OPEN_EXISTS);
if (rc < 0) {
- CERROR("%s: error opening log id "DFID":%x: rc = %d\n",
- loghandle2name(cathandle), PFID(&logid->lgl_oi.oi_fid),
- logid->lgl_ogen, rc);
+ CERROR("%s: error opening log id "DFID": rc = %d\n",
+ loghandle2name(cathandle), PLOGID(logid), rc);
RETURN(rc);
}
ENTRY;
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED2)) {
+ if (CFS_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED2)) {
down_write_nested(&cathandle->lgh_lock, LLOGH_CAT);
GOTO(next, loghandle);
}
ENTRY;
rc = llog_cat_id2handle(env, cathandle, &loghandle, lgl);
if (rc) {
- CDEBUG(D_HA, "%s: cannot find llog for handle "DFID":%x"
- ": rc = %d\n", loghandle2name(cathandle),
- PFID(&lgl->lgl_oi.oi_fid), lgl->lgl_ogen, rc);
+ CDEBUG(D_HA, "%s: can't find llog handle for "DFID": rc = %d\n",
+ loghandle2name(cathandle), PLOGID(lgl), rc);
RETURN(rc);
}
* for these non-exist llogs.
*/
rc = -ENOENT;
- CDEBUG(D_HA, "%s: llog "DFID":%x does not exist"
- ": rc = %d\n", loghandle2name(cathandle),
- PFID(&lgl->lgl_oi.oi_fid), lgl->lgl_ogen, rc);
-
+ CDEBUG(D_HA, "%s: llog "DFID" does not exist: rc = %d\n",
+ loghandle2name(cathandle), PLOGID(lgl), rc);
llog_handle_put(env, loghandle);
RETURN(rc);
}
ENTRY;
if (rec->lrh_type != le32_to_cpu(LLOG_LOGID_MAGIC)) {
rc = -EINVAL;
- CWARN("%s: invalid record in catalog "DFID":%x: rc = %d\n",
- loghandle2name(cat_llh),
- PFID(&cat_llh->lgh_id.lgl_oi.oi_fid),
- cat_llh->lgh_id.lgl_ogen, rc);
+ CWARN("%s: invalid record in catalog "DFID": rc = %d\n",
+ loghandle2name(cat_llh), PLOGID(&cat_llh->lgh_id), rc);
RETURN(rc);
}
- CDEBUG(D_HA, "processing log "DFID":%x at index %u of catalog "DFID"\n",
- PFID(&lir->lid_id.lgl_oi.oi_fid), lir->lid_id.lgl_ogen,
- le32_to_cpu(rec->lrh_index),
- PFID(&cat_llh->lgh_id.lgl_oi.oi_fid));
+ CDEBUG(D_HA, "processing log "DFID" at index %u of catalog "DFID"\n",
+ PLOGID(&lir->lid_id), le32_to_cpu(rec->lrh_index),
+ PLOGID(&cat_llh->lgh_id));
rc = llog_cat_id2handle(env, cat_llh, llhp, &lir->lid_id);
if (rc) {
if (rc == -ENOENT || rc == -ESTALE)
rc = LLOG_DEL_RECORD;
else if (rc)
- CWARN("%s: can't find llog handle "DFID":%x: rc = %d\n",
- loghandle2name(cat_llh),
- PFID(&lir->lid_id.lgl_oi.oi_fid),
- lir->lid_id.lgl_ogen, rc);
+ CWARN("%s: can't find llog handle "DFID": rc = %d\n",
+ loghandle2name(cat_llh), PLOGID(&lir->lid_id),
+ rc);
RETURN(rc);
}
hdr = (*llhp)->lgh_hdr;
if ((hdr->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
hdr->llh_count == 1 && cat_llh->lgh_obj != NULL &&
- *llhp != cat_llh->u.chd.chd_current_log) {
+ *llhp != cat_llh->u.chd.chd_current_log &&
+ *llhp != cat_llh->u.chd.chd_next_log) {
rc = llog_destroy(env, *llhp);
if (rc)
CWARN("%s: can't destroy empty log "DFID": rc = %d\n",
- loghandle2name((*llhp)),
- PFID(&lir->lid_id.lgl_oi.oi_fid), rc);
+ loghandle2name((*llhp)), PLOGID(&lir->lid_id),
+ rc);
rc = LLOG_DEL_PLAIN;
}
int rc;
ENTRY;
+
+ /* Skip processing of the logs until startcat */
+ if (rec->lrh_index < d->lpd_startcat)
+ RETURN(0);
+
rc = llog_cat_process_common(env, cat_llh, rec, &llh);
if (rc)
GOTO(out, rc);
- if (rec->lrh_index < d->lpd_startcat) {
- /* Skip processing of the logs until startcat */
- rc = 0;
- } else if (d->lpd_startidx > 0) {
- struct llog_process_cat_data cd;
+ if (d->lpd_startidx > 0) {
+ struct llog_process_cat_data cd = {
+ .lpcd_first_idx = 0,
+ .lpcd_last_idx = 0,
+ .lpcd_read_mode = LLOG_READ_MODE_NORMAL,
+ };
+
+ /* startidx is always associated with a catalog index */
+ if (d->lpd_startcat == rec->lrh_index)
+ cd.lpcd_first_idx = d->lpd_startidx;
- cd.lpcd_first_idx = d->lpd_startidx;
- cd.lpcd_last_idx = 0;
rc = llog_process_or_fork(env, llh, d->lpd_cb, d->lpd_data,
&cd, false);
/* Continue processing the next log from idx 0 */
* it if the caller is fine with that.
*/
CERROR("%s: remove corrupted/missing llog "DFID"\n",
- loghandle2name(cat_llh),
- PFID(&llh->lgh_id.lgl_oi.oi_fid));
+ loghandle2name(cat_llh), PLOGID(&llh->lgh_id));
rc = LLOG_DEL_PLAIN;
}
if (rc == LLOG_DEL_PLAIN || rc == LLOG_DEL_RECORD)
/* clear wrong catalog entry */
rc = llog_cat_cleanup(env, cat_llh, llh, rec->lrh_index);
+ else if (rc == LLOG_SKIP_PLAIN)
+ /* processing callback ask to skip the llog -> continue */
+ rc = 0;
if (llh)
llog_handle_put(env, llh);
llog_cb_t cb, void *data, int startcat,
int startidx, bool fork)
{
- struct llog_process_data d;
struct llog_log_hdr *llh = cat_llh->lgh_hdr;
+ struct llog_process_data d;
+ struct llog_process_cat_data cd;
int rc;
ENTRY;
LASSERT(llh->llh_flags & LLOG_F_IS_CAT);
d.lpd_data = data;
d.lpd_cb = cb;
- d.lpd_startcat = (startcat == LLOG_CAT_FIRST ? 0 : startcat);
- d.lpd_startidx = startidx;
- if (llh->llh_cat_idx >= cat_llh->lgh_last_idx &&
- llh->llh_count > 1) {
- struct llog_process_cat_data cd;
+ /* default: start from the oldest record */
+ d.lpd_startidx = 0;
+ d.lpd_startcat = llh->llh_cat_idx + 1;
+ cd.lpcd_first_idx = llh->llh_cat_idx;
+ cd.lpcd_last_idx = 0;
+ cd.lpcd_read_mode = LLOG_READ_MODE_NORMAL;
+
+ if (startcat > 0 && startcat <= llog_max_idx(llh)) {
+ /* start from a custom catalog/llog plain indexes*/
+ d.lpd_startidx = startidx;
+ d.lpd_startcat = startcat;
+ cd.lpcd_first_idx = startcat - 1;
+ } else if (startcat != 0) {
+ CWARN("%s: startcat %d out of range for catlog "DFID"\n",
+ loghandle2name(cat_llh), startcat,
+ PLOGID(&cat_llh->lgh_id));
+ RETURN(-EINVAL);
+ }
+
+ startcat = d.lpd_startcat;
+
+ /* if startcat <= lgh_last_idx, we only need to process the first part
+ * of the catalog (from startcat).
+ */
+ if (llog_cat_is_wrapped(cat_llh) && startcat > cat_llh->lgh_last_idx) {
+ int cat_idx_origin = llh->llh_cat_idx;
CWARN("%s: catlog "DFID" crosses index zero\n",
loghandle2name(cat_llh),
- PFID(&cat_llh->lgh_id.lgl_oi.oi_fid));
- /*startcat = 0 is default value for general processing */
- if ((startcat != LLOG_CAT_FIRST &&
- startcat >= llh->llh_cat_idx) || !startcat) {
- /* processing the catalog part at the end */
- cd.lpcd_first_idx = (startcat ? startcat :
- llh->llh_cat_idx);
- if (OBD_FAIL_PRECHECK(OBD_FAIL_CAT_RECORDS))
- cd.lpcd_last_idx = cfs_fail_val;
- else
- cd.lpcd_last_idx = 0;
- rc = llog_process_or_fork(env, cat_llh, cat_cb,
- &d, &cd, fork);
- /* Reset the startcat becasue it has already reached
- * catalog bottom.
- */
- startcat = 0;
- d.lpd_startcat = 0;
- if (rc != 0)
- RETURN(rc);
- }
- /* processing the catalog part at the begining */
- cd.lpcd_first_idx = (startcat == LLOG_CAT_FIRST) ? 0 : startcat;
- /* Note, the processing will stop at the lgh_last_idx value,
- * and it could be increased during processing. So records
- * between current lgh_last_idx and lgh_last_idx in future
- * would left unprocessed.
+ PLOGID(&cat_llh->lgh_id));
+
+ /* processing the catalog part at the end */
+ rc = llog_process_or_fork(env, cat_llh, cat_cb, &d, &cd, fork);
+ if (rc)
+ RETURN(rc);
+
+ /* Reset the startcat because it has already reached catalog
+ * bottom.
+ * lgh_last_idx value could be increased during processing. So
+ * we process the remaining of catalog entries to be sure.
*/
- cd.lpcd_last_idx = cat_llh->lgh_last_idx;
- rc = llog_process_or_fork(env, cat_llh, cat_cb,
- &d, &cd, fork);
- } else {
- rc = llog_process_or_fork(env, cat_llh, cat_cb,
- &d, NULL, fork);
+ d.lpd_startcat = 1;
+ d.lpd_startidx = 0;
+ cd.lpcd_first_idx = 0;
+ cd.lpcd_last_idx = max(cat_idx_origin, cat_llh->lgh_last_idx);
+ } else if (llog_cat_is_wrapped(cat_llh)) {
+ /* only process 1st part -> stop before reaching 2sd part */
+ cd.lpcd_last_idx = llh->llh_cat_idx;
}
+ /* processing the catalog part at the begining */
+ rc = llog_process_or_fork(env, cat_llh, cat_cb, &d, &cd, fork);
+
RETURN(rc);
}
EXPORT_SYMBOL(llog_cat_process_or_fork);
+/**
+ * Process catalog records with a callback
+ *
+ * \note
+ * If "starcat = 0", this is the default processing. "startidx" argument is
+ * ignored and processing begin from the oldest record.
+ * If "startcat > 0", this is a custom starting point. Processing begin with
+ * the llog plain defined in the catalog record at index "startcat". The first
+ * llog plain record to process is at index "startidx + 1".
+ *
+ * \param env Lustre environnement
+ * \param cat_llh Catalog llog handler
+ * \param cb Callback executed for each records (in llog plain files)
+ * \param data Callback data argument
+ * \param startcat Catalog index of the llog plain to start with.
+ * \param startidx Index of the llog plain to start processing. The first
+ * record to process is at startidx + 1.
+ *
+ * \retval 0 processing successfully completed
+ * \retval LLOG_PROC_BREAK processing was stopped by the callback.
+ * \retval -errno on error.
+ */
int llog_cat_process(const struct lu_env *env, struct llog_handle *cat_llh,
llog_cb_t cb, void *data, int startcat, int startidx)
{
*cum_size += size;
CDEBUG(D_INFO, "Add llog entry "DFID" size=%llu, tot=%llu\n",
- PFID(&llh->lgh_id.lgl_oi.oi_fid), size, *cum_size);
+ PLOGID(&llh->lgh_id), size, *cum_size);
}
if (llh != NULL)
__u32 llog_cat_free_space(struct llog_handle *cat_llh)
{
/* simulate almost full Catalog */
- if (OBD_FAIL_CHECK(OBD_FAIL_CAT_FREE_RECORDS))
+ if (CFS_FAIL_CHECK(OBD_FAIL_CAT_FREE_RECORDS))
return cfs_fail_val;
if (cat_llh->lgh_hdr->llh_count == 1)
- return LLOG_HDR_BITMAP_SIZE(cat_llh->lgh_hdr) - 1;
+ return llog_max_idx(cat_llh->lgh_hdr);
if (cat_llh->lgh_last_idx > cat_llh->lgh_hdr->llh_cat_idx)
- return LLOG_HDR_BITMAP_SIZE(cat_llh->lgh_hdr) - 1 +
+ return llog_max_idx(cat_llh->lgh_hdr) +
cat_llh->lgh_hdr->llh_cat_idx - cat_llh->lgh_last_idx;
/* catalog is presently wrapped */
} else if (rc == LLOG_DEL_RECORD) {
/* clear wrong catalog entry */
rc = llog_cat_cleanup(env, cat_llh, NULL, rec->lrh_index);
+ } else if (rc == LLOG_SKIP_PLAIN) {
+ /* processing callback ask to skip the llog -> continue */
+ rc = 0;
}
if (rc)
RETURN(rc);
ENTRY;
LASSERT(llh->llh_flags & LLOG_F_IS_CAT);
+ cd.lpcd_read_mode = LLOG_READ_MODE_NORMAL;
d.lpd_data = data;
d.lpd_cb = cb;
llh->llh_count > 1) {
CWARN("%s: catalog "DFID" crosses index zero\n",
loghandle2name(cat_llh),
- PFID(&cat_llh->lgh_id.lgl_oi.oi_fid));
+ PLOGID(&cat_llh->lgh_id));
cd.lpcd_first_idx = 0;
cd.lpcd_last_idx = cat_llh->lgh_last_idx;
static int llog_cat_set_first_idx(struct llog_handle *cathandle, int idx)
{
struct llog_log_hdr *llh = cathandle->lgh_hdr;
- int bitmap_size;
+ int idx_nbr;
ENTRY;
- bitmap_size = LLOG_HDR_BITMAP_SIZE(llh);
+ idx_nbr = llog_max_idx(llh) + 1;
/*
* The llh_cat_idx equals to the first used index minus 1
* so if we canceled the first index then llh_cat_idx
llh->llh_cat_idx = idx;
while (idx != cathandle->lgh_last_idx) {
- idx = (idx + 1) % bitmap_size;
+ idx = (idx + 1) % idx_nbr;
if (!test_bit_le(idx, LLOG_HDR_BITMAP(llh))) {
/* update llh_cat_idx for each unset bit,
* expecting the next one is set */
}
CDEBUG(D_HA, "catlog "DFID" first idx %u, last_idx %u\n",
- PFID(&cathandle->lgh_id.lgl_oi.oi_fid),
- llh->llh_cat_idx, cathandle->lgh_last_idx);
+ PLOGID(&cathandle->lgh_id), llh->llh_cat_idx,
+ cathandle->lgh_last_idx);
}
RETURN(0);
struct llog_handle *loghandle, int index)
{
int rc;
- struct lu_fid fid = {.f_seq = 0, .f_oid = 0, .f_ver = 0};
LASSERT(index);
if (loghandle != NULL) {
/* remove destroyed llog from catalog list and
* chd_current_log variable */
- fid = loghandle->lgh_id.lgl_oi.oi_fid;
down_write(&cathandle->lgh_lock);
if (cathandle->u.chd.chd_current_log == loghandle)
cathandle->u.chd.chd_current_log = NULL;
/* remove plain llog entry from catalog by index */
llog_cat_set_first_idx(cathandle, index);
rc = llog_cancel_rec(env, cathandle, index);
- if (rc == 0)
+ if (!rc && loghandle)
CDEBUG(D_HA,
"cancel plain log "DFID" at index %u of catalog "DFID"\n",
- PFID(&fid), index,
- PFID(&cathandle->lgh_id.lgl_oi.oi_fid));
+ PLOGID(&loghandle->lgh_id), index,
+ PLOGID(&cathandle->lgh_id));
+ return rc;
+}
+
+/* retain log in catalog, and zap it if log is empty */
+int llog_cat_retain_cb(const struct lu_env *env, struct llog_handle *cat,
+ struct llog_rec_hdr *rec, void *data)
+{
+ struct llog_handle *log = NULL;
+ int rc;
+
+ rc = llog_cat_process_common(env, cat, rec, &log);
+
+ /* The empty plain log was destroyed while processing */
+ if (rc == LLOG_DEL_PLAIN || rc == LLOG_DEL_RECORD)
+ /* clear wrong catalog entry */
+ rc = llog_cat_cleanup(env, cat, log, rec->lrh_index);
+ else if (!rc)
+ llog_retain(env, log);
+
+ if (log)
+ llog_handle_put(env, log);
+
return rc;
}
+EXPORT_SYMBOL(llog_cat_retain_cb);
+
+
git://git.whamcloud.com / fs / lustre-release.git / blobdiff