#include <liblustre.h>
#endif
+#include <linux/obd_class.h>
#include <linux/lustre_log.h>
+#include <portals/list.h>
/* Allocate a new log or catalog handle */
struct llog_handle *llog_alloc_handle(void)
}
EXPORT_SYMBOL(llog_alloc_handle);
+
void llog_free_handle(struct llog_handle *loghandle)
{
if (!loghandle)
if (!loghandle->lgh_hdr)
goto out;
- if (le32_to_cpu(loghandle->lgh_hdr->llh_flags) & LLOG_F_IS_PLAIN)
+ if (loghandle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN)
list_del_init(&loghandle->u.phd.phd_entry);
- if (le32_to_cpu(loghandle->lgh_hdr->llh_flags) & LLOG_F_IS_CAT)
+ if (loghandle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
LASSERT(list_empty(&loghandle->u.chd.chd_head));
OBD_FREE(loghandle->lgh_hdr, LLOG_CHUNK_SIZE);
RETURN(-EINVAL);
}
- llh->llh_count = cpu_to_le32(le32_to_cpu(llh->llh_count) - 1);
+ llh->llh_count--;
- 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) &&
(loghandle->lgh_last_idx == (LLOG_BITMAP_BYTES * 8) - 1)) {
rc = llog_destroy(loghandle);
if (rc)
RETURN(-ENOMEM);
handle->lgh_hdr = llh;
/* first assign flags to use llog_client_ops */
- llh->llh_flags = cpu_to_le32(flags);
+ llh->llh_flags = flags;
rc = llog_read_header(handle);
if (rc == 0) {
- flags = le32_to_cpu(llh->llh_flags);
+ flags = llh->llh_flags;
if (uuid)
LASSERT(obd_uuid_equals(uuid, &llh->llh_tgtuuid));
GOTO(out, rc);
rc = 0;
handle->lgh_last_idx = 0; /* header is record with index 0 */
- llh->llh_count = cpu_to_le32(1); /* for the header record */
- llh->llh_hdr.lrh_type = cpu_to_le32(LLOG_HDR_MAGIC);
- llh->llh_hdr.lrh_len = llh->llh_tail.lrt_len =
- cpu_to_le32(LLOG_CHUNK_SIZE);
+ llh->llh_count = 1; /* for the header record */
+ llh->llh_hdr.lrh_type = LLOG_HDR_MAGIC;
+ llh->llh_hdr.lrh_len = llh->llh_tail.lrt_len = LLOG_CHUNK_SIZE;
llh->llh_hdr.lrh_index = llh->llh_tail.lrt_index = 0;
- llh->llh_timestamp = cpu_to_le64(LTIME_S(CURRENT_TIME));
+ llh->llh_timestamp = LTIME_S(CURRENT_TIME);
if (uuid)
memcpy(&llh->llh_tgtuuid, uuid, sizeof(llh->llh_tgtuuid));
- llh->llh_bitmap_offset = cpu_to_le32(offsetof(typeof(*llh),llh_bitmap));
+ llh->llh_bitmap_offset = offsetof(typeof(*llh),llh_bitmap);
ext2_set_bit(0, llh->llh_bitmap);
out:
if (flags & LLOG_F_IS_CAT) {
INIT_LIST_HEAD(&handle->u.chd.chd_head);
- llh->llh_size = cpu_to_le32(sizeof(struct llog_logid_rec));
+ llh->llh_size = sizeof(struct llog_logid_rec);
}
else if (flags & LLOG_F_IS_PLAIN)
INIT_LIST_HEAD(&handle->u.phd.phd_entry);
GOTO(out, rc);
rec = buf;
- idx = le32_to_cpu(rec->lrh_index);
+ idx = rec->lrh_index;
if (idx < index)
CDEBUG(D_HA, "index %u : idx %u\n", index, idx);
while (idx < index) {
- rec = ((void *)rec + le32_to_cpu(rec->lrh_len));
+ rec = (struct llog_rec_hdr *)
+ ((char *)rec + rec->lrh_len);
idx ++;
}
++index;
if (index > last_index)
GOTO(out, rc = 0);
- rec = ((void *)rec + le32_to_cpu(rec->lrh_len));
+ rec = (struct llog_rec_hdr *)
+ ((char *)rec + rec->lrh_len);
}
}
RETURN(rc);
}
EXPORT_SYMBOL(llog_process);
-
-int llog_reverse_process(struct llog_handle *loghandle, llog_cb_t cb,
- void *data, void *catdata)
-{
- struct llog_log_hdr *llh = loghandle->lgh_hdr;
- struct llog_process_cat_data *cd = catdata;
- void *buf;
- int rc = 0, first_index = 1, index, idx;
- struct llog_rec_tail *tail;
- ENTRY;
-
- OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
- if (!buf)
- RETURN(-ENOMEM);
-
- if (cd != NULL)
- first_index = cd->first_idx + 1;
- if (cd != NULL && cd->last_idx)
- index = cd->last_idx;
- else
- index = LLOG_BITMAP_BYTES * 8 - 1;
-
- while (rc == 0) {
- struct llog_rec_hdr *rec;
-
- /* skip records not set in bitmap */
- while (index >= first_index &&
- !ext2_test_bit(index, llh->llh_bitmap))
- --index;
-
- LASSERT(index >= first_index - 1);
- if (index == first_index - 1)
- break;
-
- /* get the buf with our target record; avoid old garbage */
- memset(buf, 0, LLOG_CHUNK_SIZE);
- rc = llog_prev_block(loghandle, index, buf, LLOG_CHUNK_SIZE);
- if (rc)
- GOTO(out, rc);
-
- rec = buf;
- idx = le32_to_cpu(rec->lrh_index);
- if (idx < index)
- CDEBUG(D_HA, "index %u : idx %u\n", index, idx);
- while (idx < index) {
- rec = ((void *)rec + le32_to_cpu(rec->lrh_len));
- idx ++;
- }
-
- /* process records in buffer, starting where we found one */
- while ((void *)rec >= buf) {
- if (rec->lrh_index == 0)
- GOTO(out, 0); /* no more records */
-
- /* if set, process the callback on this record */
- if (ext2_test_bit(index, llh->llh_bitmap)) {
- rc = cb(loghandle, rec, data);
- if (rc == LLOG_PROC_BREAK) {
- CWARN("recovery from log: "LPX64":%x"
- " stopped\n",
- loghandle->lgh_id.lgl_oid,
- loghandle->lgh_id.lgl_ogen);
- GOTO(out, rc);
- }
- if (rc)
- GOTO(out, rc);
- }
-
- /* previous record, still in buffer? */
- --index;
- if (index < first_index)
- GOTO(out, rc = 0);
-
- if ((void *)rec == buf)
- break;
-
- tail = (void *)rec - sizeof(struct llog_rec_tail);
- rec = ((void *)rec - le32_to_cpu(tail->lrt_len));
- }
- }
-
- out:
- if (buf)
- OBD_FREE(buf, LLOG_CHUNK_SIZE);
- RETURN(rc);
-}
-EXPORT_SYMBOL(llog_reverse_process);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff