LU-15788 lmv: try another MDT if statfs failed

[fs/lustre-release.git] / lustre / lmv / lmv_obd.c

diff --git a/lustre/lmv/lmv_obd.c b/lustre/lmv/lmv_obd.c
index 3a1405b..5b8c03d 100644 (file)
--- a/lustre/lmv/lmv_obd.c
+++ b/lustre/lmv/lmv_obd.c
@@ -1239,6 +1239,7 @@ static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
        __u32 i;
        __u32 idx;
        int rc = 0;
+       int err = 0;
 
        ENTRY;
 
@@ -1260,6 +1261,10 @@ static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
                if (rc) {
                        CERROR("%s: can't stat MDS #%d: rc = %d\n",
                               tgt->ltd_exp->exp_obd->obd_name, i, rc);
+                       err = rc;
+                       /* Try another MDT */
+                       if (flags & OBD_STATFS_SUM)
+                               continue;
                        GOTO(out_free_temp, rc);
                }
 
@@ -1273,7 +1278,7 @@ static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
                         * clients can be mounted as long as MDT0 is in
                         * service */
                        *osfs = *temp;
-                       break;
+                       GOTO(out_free_temp, rc);
                }
 
                if (i == 0) {
@@ -1286,11 +1291,12 @@ static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
                        osfs->os_granted += temp->os_granted;
                }
        }
-
-       EXIT;
+       /* There is no stats from some MDTs, data incomplete */
+       if (err)
+               rc = err;
 out_free_temp:
        OBD_FREE(temp, sizeof(*temp));
-       return rc;
+       RETURN(rc);
 }
 
 static int lmv_statfs_update(void *cookie, int rc)