+ struct inode *inode = vvp_object_inode(obj);
+
+ /*
+ * lov overwrites most of these fields in
+ * lov_attr_get()->...lov_merge_lvb_kms(), except when inode
+ * attributes are newer.
+ */
+
+ attr->cat_size = i_size_read(inode);
+ attr->cat_mtime = inode->i_mtime.tv_sec;
+ attr->cat_atime = inode->i_atime.tv_sec;
+ attr->cat_ctime = inode->i_ctime.tv_sec;
+ attr->cat_blocks = inode->i_blocks;
+ attr->cat_uid = from_kuid(&init_user_ns, inode->i_uid);
+ attr->cat_gid = from_kgid(&init_user_ns, inode->i_gid);
+ attr->cat_projid = ll_i2info(inode)->lli_projid;
+ /* KMS is not known by this layer */
+ return 0; /* layers below have to fill in the rest */
+}
+
+static int vvp_attr_update(const struct lu_env *env, struct cl_object *obj,
+ const struct cl_attr *attr, unsigned valid)
+{
+ struct inode *inode = vvp_object_inode(obj);
+
+ if (valid & CAT_UID)
+ inode->i_uid = make_kuid(&init_user_ns, attr->cat_uid);
+ if (valid & CAT_GID)
+ inode->i_gid = make_kgid(&init_user_ns, attr->cat_gid);
+ if (valid & CAT_ATIME)
+ inode->i_atime.tv_sec = attr->cat_atime;
+ if (valid & CAT_MTIME)
+ inode->i_mtime.tv_sec = attr->cat_mtime;
+ if (valid & CAT_CTIME)
+ inode->i_ctime.tv_sec = attr->cat_ctime;
+ if (0 && valid & CAT_SIZE)
+ i_size_write(inode, attr->cat_size);
+ if (valid & CAT_PROJID)
+ ll_i2info(inode)->lli_projid = attr->cat_projid;
+ /* not currently necessary */
+ if (0 && valid & (CAT_UID|CAT_GID|CAT_SIZE|CAT_PROJID))
+ mark_inode_dirty(inode);
+ return 0;
+}
+
+static int vvp_conf_set(const struct lu_env *env, struct cl_object *obj,
+ const struct cl_object_conf *conf)
+{
+ struct ll_inode_info *lli = ll_i2info(conf->coc_inode);
+
+ if (conf->coc_opc == OBJECT_CONF_INVALIDATE) {
+ CDEBUG(D_VFSTRACE, DFID ": losing layout lock\n",
+ PFID(&lli->lli_fid));
+
+ ll_layout_version_set(lli, CL_LAYOUT_GEN_NONE);
+
+ /* Clean up page mmap for this inode.
+ * The reason for us to do this is that if the page has
+ * already been installed into memory space, the process
+ * can access it without interacting with lustre, so this
+ * page may be stale due to layout change, and the process
+ * will never be notified.
+ * This operation is expensive but mmap processes have to pay
+ * a price themselves. */
+ unmap_mapping_range(conf->coc_inode->i_mapping,
+ 0, OBD_OBJECT_EOF, 1);
+ pcc_layout_invalidate(conf->coc_inode);
+ }
+ return 0;
+}
+
+static int vvp_prune(const struct lu_env *env, struct cl_object *obj)
+{
+ struct inode *inode = vvp_object_inode(obj);
+ int rc;
+ ENTRY;
+
+ rc = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, CL_FSYNC_LOCAL, 1);
+ if (rc < 0) {
+ CDEBUG(D_VFSTRACE, DFID ": writeback failed: %d\n",
+ PFID(lu_object_fid(&obj->co_lu)), rc);
+ RETURN(rc);
+ }
+
+ truncate_inode_pages(inode->i_mapping, 0);
+ if (inode->i_mapping->nrpages) {
+ CDEBUG(D_VFSTRACE, DFID ": still has %lu pages remaining\n",
+ PFID(lu_object_fid(&obj->co_lu)),
+ inode->i_mapping->nrpages);
+ RETURN(-EIO);
+ }
+
+ RETURN(0);
+}
+
+static int vvp_object_glimpse(const struct lu_env *env,
+ const struct cl_object *obj, struct ost_lvb *lvb)
+{
+ struct inode *inode = vvp_object_inode(obj);
+
+ ENTRY;
+ lvb->lvb_mtime = inode->i_mtime.tv_sec;
+ lvb->lvb_atime = inode->i_atime.tv_sec;
+ lvb->lvb_ctime = inode->i_ctime.tv_sec;
+
+ /*
+ * LU-417: Add dirty pages block count lest i_blocks reports 0, some
+ * "cp" or "tar" on remote node may think it's a completely sparse file
+ * and skip it.
+ */
+ if (lvb->lvb_size > 0 && lvb->lvb_blocks == 0)
+ lvb->lvb_blocks = dirty_cnt(inode);
+
+ RETURN(0);