LU-3162 lov: Get the correct address of lmm_objects

The introduction of lmm_layout_gen makes the assumption that
lmm_objects is present after lmm_stripe_count incorrect.
Fixed this to get the correct address of lmm_objects when lmmk is cast
to lov_mds_md_v1.

Signed-off-by: Swapnil Pimpale <spimpale@ddn.com>
Change-Id: I6eba151a54862fde60f4382df92864a52bb12530
Reviewed-on: http://review.whamcloud.com/7258
Tested-by: Hudson
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>

diff --git a/lustre/lov/lov_pack.c b/lustre/lov/lov_pack.c
index c70f427..bc1e489 100644 (file)
--- a/lustre/lov/lov_pack.c
+++ b/lustre/lov/lov_pack.c
@@ -643,9 +643,8 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm,
         if (lum.lmm_magic == LOV_USER_MAGIC) {
                 /* User request for v1, we need skip lmm_pool_name */
                 if (lmmk->lmm_magic == LOV_MAGIC_V3) {
         if (lum.lmm_magic == LOV_USER_MAGIC) {
                 /* User request for v1, we need skip lmm_pool_name */
                 if (lmmk->lmm_magic == LOV_MAGIC_V3) {

-                        memmove((char*)(&lmmk->lmm_stripe_count) +
-                                sizeof(lmmk->lmm_stripe_count),
-                                ((struct lov_mds_md_v3*)lmmk)->lmm_objects,
+                       memmove(((struct lov_mds_md_v1 *)lmmk)->lmm_objects,
+                               ((struct lov_mds_md_v3 *)lmmk)->lmm_objects,

                                 lmmk->lmm_stripe_count *
                                 sizeof(struct lov_ost_data_v1));
                         lmm_size -= LOV_MAXPOOLNAME;
                                 lmmk->lmm_stripe_count *
                                 sizeof(struct lov_ost_data_v1));
                         lmm_size -= LOV_MAXPOOLNAME;