LU-1187 lod: prepare default stripe EA for remote directory

[fs/lustre-release.git] / lustre / lod / lod_object.c

diff --git a/lustre/lod/lod_object.c b/lustre/lod/lod_object.c
index de28d9c..f082c91 100644 (file)
--- a/lustre/lod/lod_object.c
+++ b/lustre/lod/lod_object.c
@@ -707,7 +707,10 @@ static void lod_ah_init(const struct lu_env *env,
                        lc->ldo_def_stripe_offset = lp->ldo_def_stripe_offset;
                        lc->ldo_striping_cached = 1;
                        lc->ldo_def_striping_set = 1;
-                       CDEBUG(D_OTHER, "inherite striping defaults\n");
+                       CDEBUG(D_OTHER, "inherite EA sz:%d off:%d nr:%d\n",
+                              (int)lc->ldo_def_stripenr,
+                              (int)lc->ldo_def_stripe_size,
+                              (int)lc->ldo_def_stripe_offset);
                }
                return;
        }
@@ -901,11 +904,35 @@ static int lod_declare_object_create(const struct lu_env *env,
        } else if (dof->dof_type == DFT_DIR && lo->ldo_striping_cached) {
                struct lod_thread_info *info = lod_env_info(env);
 
-               info->lti_buf.lb_buf = NULL;
-               info->lti_buf.lb_len = sizeof(struct lov_user_md_v3);
+               struct lov_user_md_v3 *v3;
+
+               if (LOVEA_DELETE_VALUES(lo->ldo_def_stripe_size,
+                                       lo->ldo_def_stripenr,
+                                       lo->ldo_def_stripe_offset))
+                       RETURN(0);
+
+               OBD_ALLOC_PTR(v3);
+               if (v3 == NULL)
+                       RETURN(-ENOMEM);
+
+               v3->lmm_magic = cpu_to_le32(LOV_MAGIC_V3);
+               v3->lmm_pattern = cpu_to_le32(LOV_PATTERN_RAID0);
+               v3->lmm_object_id = fid_oid(lu_object_fid(&dt->do_lu));
+               v3->lmm_object_seq = fid_seq(lu_object_fid(&dt->do_lu));
+               v3->lmm_stripe_size = cpu_to_le32(lo->ldo_def_stripe_size);
+               v3->lmm_stripe_count = cpu_to_le32(lo->ldo_def_stripenr);
+               v3->lmm_stripe_offset = cpu_to_le16(lo->ldo_def_stripe_offset);
+               if (lo->ldo_pool)
+                       strncpy(v3->lmm_pool_name, lo->ldo_pool,
+                               LOV_MAXPOOLNAME);
+
+               info->lti_buf.lb_buf = v3;
+               info->lti_buf.lb_len = sizeof(*v3);
+
                /* to transfer default striping from the parent */
                rc = dt_declare_xattr_set(env, next, &info->lti_buf,
                                          XATTR_NAME_LOV, 0, th);
+               OBD_FREE_PTR(v3);
        }
 
 out: