#include <liblustre.h>
#endif
-#include <linux/obd_class.h>
#include <linux/lustre_log.h>
#include <portals/list.h>
{
struct llog_handle *loghandle;
struct llog_log_hdr *llh;
- struct llog_logid_rec rec = { { 0 }, };
+ struct llog_logid_rec rec;
int rc, index, bitmap_size;
ENTRY;
index = (cathandle->lgh_last_idx + 1) % bitmap_size;
- /* maximum number of available slots in catlog is bitmap_size - 2 */
- if (llh->llh_cat_idx == index) {
+ /* maximum number of available slots in catalog is bitmap_size - 2 */
+ if (llh->llh_cat_idx == cpu_to_le32(index)) {
CERROR("no free catalog slots for log...\n");
RETURN(ERR_PTR(-ENOSPC));
} else {
LBUG(); /* should never happen */
}
cathandle->lgh_last_idx = index;
- llh->llh_count++;
- llh->llh_tail.lrt_index = index;
+ llh->llh_count = cpu_to_le32(le32_to_cpu(llh->llh_count) + 1);
+ llh->llh_tail.lrt_index = cpu_to_le32(index);
}
rc = llog_create(cathandle->lgh_ctxt, &loghandle, NULL, NULL);
- if (rc)
+ if (rc) {
+ CERROR("cannot create new log, error = %d\n", rc);
RETURN(ERR_PTR(rc));
+ }
rc = llog_init_handle(loghandle,
LLOG_F_IS_PLAIN | LLOG_F_ZAP_WHEN_EMPTY,
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 = sizeof(rec);
- rec.lid_hdr.lrh_index = index;
- rec.lid_hdr.lrh_type = LLOG_LOGID_MAGIC;
+ 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_id = loghandle->lgh_id;
- rec.lid_tail.lrt_len = sizeof(rec);
- rec.lid_tail.lrt_index = index;
+ rec.lid_tail.lrt_len = cpu_to_le32(sizeof(rec));
+ rec.lid_tail.lrt_index = cpu_to_le32(index);
/* update the catalog: header and record */
rc = llog_write_rec(cathandle, &rec.lid_hdr,
&loghandle->u.phd.phd_cookie, 1, NULL, index);
- if (rc < 0) {
+ if (rc < 0)
GOTO(out_destroy, rc);
- }
- loghandle->lgh_hdr->llh_cat_idx = index;
+ loghandle->lgh_hdr->llh_cat_idx = cpu_to_le32(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);
RETURN(loghandle);
}
-EXPORT_SYMBOL(llog_cat_new_log);
/* Open an existent log handle and add it to the open list.
* This log handle will be closed when all of the records in it are removed.
* We return a lock on the handle to ensure nobody yanks it from us.
*/
int llog_cat_id2handle(struct llog_handle *cathandle, struct llog_handle **res,
- struct llog_logid *logid)
+ struct llog_logid *logid)
{
struct llog_handle *loghandle;
int rc = 0;
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 =
- loghandle->lgh_hdr->llh_cat_idx;
+ loghandle->u.phd.phd_cookie.lgc_index =
+ le32_to_cpu(loghandle->lgh_hdr->llh_cat_idx);
}
out:
*res = loghandle;
RETURN(rc);
}
+EXPORT_SYMBOL(llog_cat_id2handle);
int llog_cat_put(struct llog_handle *cathandle)
{
int rc;
ENTRY;
- LASSERT(rec->lrh_len <= LLOG_CHUNK_SIZE);
+ LASSERT(le32_to_cpu(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);
}
* Assumes caller has already pushed us into the kernel context.
*/
int llog_cat_cancel_records(struct llog_handle *cathandle, int count,
- struct llog_cookie *cookies)
+ struct llog_cookie *cookies)
{
int i, index, rc = 0;
ENTRY;
}
EXPORT_SYMBOL(llog_cat_cancel_records);
-int llog_cat_process_cb(struct llog_handle *cat_llh, struct llog_rec_hdr *rec,
- void *data)
+static int llog_cat_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 (rec->lrh_type != LLOG_LOGID_MAGIC) {
+ if (le32_to_cpu(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,
- rec->lrh_index, cat_llh->lgh_id.lgl_oid);
+ le32_to_cpu(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 & LLOG_F_IS_CAT);
+ LASSERT(llh->llh_flags &cpu_to_le32(LLOG_F_IS_CAT));
d.lpd_data = data;
d.lpd_cb = cb;
if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
- CWARN("catlog "LPX64" crosses index zero\n",
+ CWARN("catalog "LPX64" crosses index zero\n",
cat_llh->lgh_id.lgl_oid);
- cd.first_idx = llh->llh_cat_idx;
+ cd.first_idx = le32_to_cpu(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);
+ }
+ 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);
+
+ 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 &cpu_to_le32(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;
ENTRY;
bitmap_size = sizeof(llh->llh_bitmap) * 8;
- if (llh->llh_cat_idx == (index - 1)) {
- idx = llh->llh_cat_idx + 1;
- llh->llh_cat_idx = idx;
+ 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);
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 = llh->llh_cat_idx + 1;
- llh->llh_cat_idx = idx;
+ idx = le32_to_cpu(llh->llh_cat_idx) + 1;
+ llh->llh_cat_idx = cpu_to_le32(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, llh->llh_cat_idx);
+ CDEBUG(D_HA, "set catalog "LPX64" first idx %u\n",
+ cathandle->lgh_id.lgl_oid,le32_to_cpu(llh->llh_cat_idx));
}
RETURN(0);
}
+EXPORT_SYMBOL(llog_cat_set_first_idx);
-#if 0
-/* Assumes caller has already pushed us into the kernel context. */
-int llog_cat_init(struct llog_handle *cathandle, struct obd_uuid *tgtuuid)
+int llog_catalog_add(struct llog_ctxt *ctxt, struct llog_rec_hdr *rec,
+ void *buf, struct llog_cookie *logcookies,
+ int numcookies, void *data)
{
- struct llog_log_hdr *llh;
- loff_t offset = 0;
- int rc = 0;
+ struct llog_handle *cathandle;
+ int rc;
ENTRY;
+
+ cathandle = ctxt->loc_handle;
+ LASSERT(cathandle != NULL);
+
+ rc = llog_cat_add_rec(cathandle, rec, logcookies, buf);
+ if (rc != 1)
+ CERROR("write one catalog record failed: %d\n", rc);
+ RETURN(rc);
+}
+EXPORT_SYMBOL(llog_catalog_add);
- LASSERT(sizeof(*llh) == LLOG_CHUNK_SIZE);
+int llog_catalog_cancel(struct llog_ctxt *ctxt, int count,
+ struct llog_cookie *cookies, int flags, void *data)
+{
+ struct llog_handle *cathandle;
+ int rc;
+ ENTRY;
- down(&cathandle->lgh_lock);
- llh = cathandle->lgh_hdr;
+ if (cookies == NULL || count == 0)
+ RETURN(-EINVAL);
+ cathandle = ctxt->loc_handle;
+ LASSERT(cathandle != NULL);
+ rc = llog_cat_cancel_records(cathandle, count, cookies);
+ RETURN(rc);
+}
+EXPORT_SYMBOL(llog_catalog_cancel);
+
+int llog_catalog_setup(struct llog_ctxt **res, char *name,
+ struct obd_export *exp,
+ struct lvfs_run_ctxt *lvfs_ctxt,
+ struct fsfilt_operations *fsops,
+ struct dentry *logs_de,
+ struct dentry *objects_de)
+{
+ struct llog_ctxt *ctxt;
+ struct llog_catid catid;
+ struct llog_handle *handle;
+ int rc;
+
+ ENTRY;
- if (cathandle->lgh_file->f_dentry->d_inode->i_size == 0) {
- llog_write_rec(cathandle, &llh->llh_hdr, NULL, 0, NULL, 0);
-
-write_hdr:
- rc = lustre_fwrite(cathandle->lgh_file, llh, LLOG_CHUNK_SIZE,
- &offset);
- if (rc != LLOG_CHUNK_SIZE) {
- CERROR("error writing catalog header: rc %d\n", rc);
- OBD_FREE(llh, sizeof(*llh));
- if (rc >= 0)
- rc = -ENOSPC;
- } else
- rc = 0;
- } else {
- rc = lustre_fread(cathandle->lgh_file, llh, LLOG_CHUNK_SIZE,
- &offset);
- if (rc != LLOG_CHUNK_SIZE) {
- CERROR("error reading catalog header: rc %d\n", rc);
- /* Can we do much else if the header is bad? */
- goto write_hdr;
- } else
- rc = 0;
+ OBD_ALLOC(ctxt, sizeof(*ctxt));
+ if (!ctxt)
+ RETURN(-ENOMEM);
+
+ *res = ctxt;
+
+ /* marking this ctxt alone. */
+ ctxt->loc_alone = 1;
+ ctxt->loc_fsops = fsops;
+ ctxt->loc_lvfs_ctxt = lvfs_ctxt;
+ ctxt->loc_exp = exp;
+ ctxt->loc_logs_dir = logs_de;
+ ctxt->loc_objects_dir = objects_de;
+ ctxt->loc_logops = &llog_lvfs_ops;
+ ctxt->loc_logops->lop_add = llog_catalog_add;
+ ctxt->loc_logops->lop_cancel = llog_catalog_cancel;
+
+ memset(&catid, 0, sizeof(struct llog_catid));
+ rc = llog_get_cat_list(lvfs_ctxt, fsops, name, 1, &catid);
+ if (rc) {
+ CERROR("error llog_get_cat_list rc: %d\n", rc);
+ RETURN(rc);
+ }
+ if (catid.lci_logid.lgl_oid)
+ rc = llog_create(ctxt, &handle, &catid.lci_logid, 0);
+ else {
+ rc = llog_create(ctxt, &handle, NULL, NULL);
+ if (!rc)
+ catid.lci_logid = handle->lgh_id;
}
+ if (rc)
+ GOTO(out, rc);
- cathandle->lgh_tgtuuid = &llh->llh_tgtuuid;
- up(&cathandle->lgh_lock);
+ ctxt->loc_handle = handle;
+ rc = llog_init_handle(handle, LLOG_F_IS_CAT, NULL);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = llog_put_cat_list(lvfs_ctxt, fsops, name, 1, &catid);
+ if (rc)
+ CERROR("error llog_get_cat_list rc: %d\n", rc);
+out:
+ if (ctxt && rc)
+ OBD_FREE(ctxt, sizeof(*ctxt));
RETURN(rc);
}
-EXPORT_SYMBOL(llog_cat_init);
+EXPORT_SYMBOL(llog_catalog_setup);
-#endif
+int llog_catalog_cleanup(struct llog_ctxt *ctxt)
+{
+ struct llog_handle *cathandle, *n, *loghandle;
+ struct llog_log_hdr *llh;
+ int rc, index;
+ ENTRY;
+
+ 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 ((le32_to_cpu(llh->llh_flags) &
+ LLOG_F_ZAP_WHEN_EMPTY) &&
+ (le32_to_cpu(llh->llh_count) == 1)) {
+ rc = llog_destroy(loghandle);
+ if (rc)
+ CERROR("failure destroying log during "
+ "cleanup: %d\n", rc);
+ LASSERT(rc == 0);
+ 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);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(llog_catalog_cleanup);
+
+int llog_cat_half_bottom(struct llog_cookie *cookie, struct llog_handle *handle)
+{
+ struct llog_handle *loghandle;
+ struct llog_logid *lgl = &cookie->lgc_lgl;
+ int rc;
+
+ down_read(&handle->lgh_lock);
+ rc = llog_cat_id2handle(handle, &loghandle, lgl);
+ if (rc)
+ GOTO(out, rc);
+ if (2 * loghandle->lgh_hdr->llh_cat_idx <=
+ handle->lgh_last_idx + handle->lgh_hdr->llh_cat_idx + 1)
+ rc = 1;
+ else
+ rc = 0;
+out:
+ up_read(&handle->lgh_lock);
+ RETURN(rc);
+}
+EXPORT_SYMBOL(llog_cat_half_bottom);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff