* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2016, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
struct cl_page *page, pgoff_t index)
{
struct lov_object *loo = cl2lov(obj);
- struct lov_io *lio = lov_env_io(env);
- struct cl_object *subobj;
- struct cl_object *o;
+ struct lov_io *lio = lov_env_io(env);
+ struct cl_object *subobj;
+ struct cl_object *o;
struct lov_io_sub *sub;
- struct lov_page *lpg = cl_object_page_slice(obj, page);
+ struct lov_page *lpg = cl_object_page_slice(obj, page);
struct lov_layout_raid0 *r0;
- loff_t offset;
- loff_t suboff;
- int entry;
- int stripe;
- int rc;
+ loff_t offset;
+ loff_t suboff;
+ int entry;
+ int stripe;
+ int rc;
+
ENTRY;
offset = cl_offset(obj, index);
subobj = lovsub2cl(r0->lo_sub[stripe]);
list_for_each_entry(o, &subobj->co_lu.lo_header->loh_layers,
co_lu.lo_linkage) {
- if (o->co_ops->coo_page_init != NULL) {
+ if (o->co_ops->coo_page_init) {
rc = o->co_ops->coo_page_init(sub->sub_env, o, page,
cl_index(subobj, suboff));
if (rc != 0)
const struct cl_page_slice *slice,
void *cookie, lu_printer_t printer)
{
- struct lov_page *lp = cl2lov_page(slice);
+ struct lov_page *lp = cl2lov_page(slice);
- return (*printer)(env, cookie, LUSTRE_LOV_NAME"-page@%p, empty.\n", lp);
+ return (*printer)(env, cookie, LUSTRE_LOV_NAME"-page@%p, empty.\n", lp);
}
static const struct cl_page_operations lov_empty_page_ops = {
{
struct lov_page *lpg = cl_object_page_slice(obj, page);
void *addr;
+
ENTRY;
lpg->lps_index = ~0;
RETURN(0);
}
+int lov_page_init_foreign(const struct lu_env *env, struct cl_object *obj,
+ struct cl_page *page, pgoff_t index)
+{
+ CDEBUG(D_PAGE, DFID" has no data\n", PFID(lu_object_fid(&obj->co_lu)));
+ RETURN(-ENODATA);
+}
+
bool lov_page_is_empty(const struct cl_page *page)
{
const struct cl_page_slice *slice = cl_page_at(page, &lov_device_type);