make CATALOG processing more safe.

[fs/lustre-release.git] / lustre / obdclass / llog_obd.c

diff --git a/lustre/obdclass/llog_obd.c b/lustre/obdclass/llog_obd.c
index 0542aa0..2a9a4c4 100644 (file)
--- a/lustre/obdclass/llog_obd.c
+++ b/lustre/obdclass/llog_obd.c
@@ -414,12 +414,17 @@ int llog_cat_initialize(struct obd_device *obd, struct obd_llog_group *olg,
         int rc;
         ENTRY;
 
+        mutex_down(&olg->olg_cat_processing);
         rc = llog_get_cat_list(obd, obd, name, idx, 1, &idarray);
         if (rc) {
                 CERROR("rc: %d\n", rc);
                 GOTO(out, rc);
         }
 
+        CDEBUG(D_INFO, "init llog for %s/%d - catid "LPX64"/"LPX64"/%x\n",
+               uuid->uuid, idx, idarray.lci_logid.lgl_oid,
+               idarray.lci_logid.lgl_ogr, idarray.lci_logid.lgl_ogen);
+
         rc = obd_llog_init(obd, olg, obd, 1, &idarray, uuid);
         if (rc) {
                 CERROR("rc: %d\n", rc);
@@ -433,6 +438,8 @@ int llog_cat_initialize(struct obd_device *obd, struct obd_llog_group *olg,
         }
 
  out:
+        mutex_up(&olg->olg_cat_processing);
+
         RETURN(rc);
 }
 EXPORT_SYMBOL(llog_cat_initialize);