LU-1876 hsm: layout lock implementation on server side

[fs/lustre-release.git] / lustre / llite / vvp_object.c

diff --git a/lustre/llite/vvp_object.c b/lustre/llite/vvp_object.c
index f112744..20dcdf9 100644 (file)
--- a/lustre/llite/vvp_object.c
+++ b/lustre/llite/vvp_object.c
@@ -128,9 +128,23 @@ int vvp_conf_set(const struct lu_env *env, struct cl_object *obj,
 {
        struct ll_inode_info *lli = ll_i2info(conf->coc_inode);
 
-       if (conf->u.coc_md != NULL && conf->u.coc_md->lsm != NULL)
+       if (conf->coc_opc != OBJECT_CONF_SET)
+               return 0;
+
+       if (conf->u.coc_md != NULL && conf->u.coc_md->lsm != NULL) {
+               CDEBUG(D_VFSTRACE, "layout lock change: %u -> %u\n",
+                       lli->lli_layout_gen,
+                       conf->u.coc_md->lsm->lsm_layout_gen);
+
+               lli->lli_has_smd = true;
                lli->lli_layout_gen = conf->u.coc_md->lsm->lsm_layout_gen;
+       } else {
+               CDEBUG(D_VFSTRACE, "layout lock destroyed: %u.\n",
+                       lli->lli_layout_gen);
 
+               lli->lli_has_smd = false;
+               lli->lli_layout_gen = LL_LAYOUT_GEN_ZERO;
+       }
        return 0;
 }