LU-17087 lmv: update stale tgt statfs every 1 hour

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

diff --git a/lustre/lmv/lmv_obd.c b/lustre/lmv/lmv_obd.c
index 2bebb98..15ad904 100644 (file)
--- a/lustre/lmv/lmv_obd.c
+++ b/lustre/lmv/lmv_obd.c
@@ -1559,7 +1559,10 @@ static struct lu_tgt_desc *lmv_locate_tgt_qos(struct lmv_obd *lmv,
                        tgt->ltd_qos.ltq_usable = 0;
                        continue;
                }
-
+               /* update one hour overdue statfs */
+               if (ktime_get_seconds() - tgt->ltd_statfs_age >
+                   60 * lmv->lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage)
+                       lmv_statfs_check_update(lmv2obd_dev(lmv), tgt);
                tgt->ltd_qos.ltq_usable = 1;
                lu_tgt_qos_weight_calc(tgt, true);
                if (tgt->ltd_index == op_data->op_mds)
@@ -1969,18 +1972,12 @@ static struct lu_tgt_desc *lmv_locate_tgt_by_space(struct lmv_obd *lmv,
                        tgt = tmp;
                else
                        tgt = lmv_locate_tgt_rr(lmv);
+               if (!IS_ERR(tgt))
+                       lmv_statfs_check_update(lmv2obd_dev(lmv), tgt);
        }
 
-       /*
-        * only update statfs after QoS mkdir, this means the cached statfs may
-        * be stale, and current mkdir may not follow QoS accurately, but it's
-        * not serious, and avoids periodic statfs when client doesn't mkdir by
-        * QoS.
-        */
-       if (!IS_ERR(tgt)) {
+       if (!IS_ERR(tgt))
                op_data->op_mds = tgt->ltd_index;
-               lmv_statfs_check_update(lmv2obd_dev(lmv), tgt);
-       }
 
        return tgt;
 }