LU-10171 lmv: avoid gratuitous 64-bit modulus

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

diff --git a/lustre/lmv/lmv_obd.c b/lustre/lmv/lmv_obd.c
index 5a7945b..19bfed4 100644 (file)
--- a/lustre/lmv/lmv_obd.c
+++ b/lustre/lmv/lmv_obd.c
@@ -1373,8 +1373,11 @@ static int lmv_select_statfs_mdt(struct lmv_obd *lmv, __u32 flags)
                        break;
 
                if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND) {
+                       /* We dont need a full 64-bit modulus, just enough
+                        * to distribute the requests across MDTs evenly.
+                        */
                        lmv->lmv_statfs_start =
-                               lnet_id.nid % lmv->desc.ld_tgt_count;
+                               (u32)lnet_id.nid % lmv->desc.ld_tgt_count;
                        break;
                }
        }