LU-2485 lod: initialize v3 to actual buf

and do not pass v3=NULL to lustre_swab_lov_user_md_v3()

Signed-off-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Change-Id: I7ad7898a736833ac86e0188248c2222a7652f41a
Reviewed-on: http://review.whamcloud.com/4814
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Hudson
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>

diff --git a/lustre/lod/lod_qos.c b/lustre/lod/lod_qos.c
index e59b904..187f85c 100644 (file)
--- a/lustre/lod/lod_qos.c
+++ b/lustre/lod/lod_qos.c
@@ -1262,10 +1262,12 @@ static int lod_qos_parse_config(const struct lu_env *env,
        v1 = buf->lb_buf;
        magic = v1->lmm_magic;
 
-       if (magic == __swab32(LOV_USER_MAGIC_V1))
+       if (magic == __swab32(LOV_USER_MAGIC_V1)) {
                lustre_swab_lov_user_md_v1(v1);
-       else if (magic == __swab32(LOV_USER_MAGIC_V3))
+       } else if (magic == __swab32(LOV_USER_MAGIC_V3)) {
+               v3 = buf->lb_buf;
                lustre_swab_lov_user_md_v3(v3);
+       }
 
        if (unlikely(magic != LOV_MAGIC_V1 && magic != LOV_MAGIC_V3)) {
                /* try to use as fully defined striping */