* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
*/
-/**
- * Adjust the stripe index by layout of raid0. @max_index is the maximum
- * page index covered by an underlying DLM lock.
- * This function converts max_index from stripe level to file level, and make
- * sure it's not beyond one stripe.
- */
-static int lov_raid0_page_is_under_lock(const struct lu_env *env,
- const struct cl_page_slice *slice,
- struct cl_io *unused,
- pgoff_t *max_index)
-{
- struct lov_object *loo = cl2lov(slice->cpl_obj);
- struct lov_layout_raid0 *r0 = lov_r0(loo);
- pgoff_t index = *max_index;
- unsigned int pps; /* pages per stripe */
- ENTRY;
-
- CDEBUG(D_READA, DFID "*max_index = %lu, nr = %d\n",
- PFID(lu_object_fid(lov2lu(loo))), index, r0->lo_nr);
-
- if (index == 0) /* the page is not covered by any lock */
- RETURN(0);
-
- if (r0->lo_nr == 1) /* single stripe file */
- RETURN(0);
-
- /* max_index is stripe level, convert it into file level */
- if (index != CL_PAGE_EOF) {
- int stripeno = lov_page_stripe(slice->cpl_page);
- *max_index = lov_stripe_pgoff(loo->lo_lsm, index, stripeno);
- }
-
- /* calculate the end of current stripe */
- pps = loo->lo_lsm->lsm_stripe_size >> PAGE_CACHE_SHIFT;
- index = slice->cpl_index + pps - slice->cpl_index % pps - 1;
-
- CDEBUG(D_READA, DFID "*max_index = %lu, index = %lu, pps = %u, "
- "stripe_size = %u, stripe no = %u, page index = %lu\n",
- PFID(lu_object_fid(lov2lu(loo))), *max_index, index, pps,
- loo->lo_lsm->lsm_stripe_size, lov_page_stripe(slice->cpl_page),
- slice->cpl_index);
-
- /* never exceed the end of the stripe */
- *max_index = min_t(pgoff_t, *max_index, index);
- RETURN(0);
-}
-
static int lov_raid0_page_print(const struct lu_env *env,
const struct cl_page_slice *slice,
void *cookie, lu_printer_t printer)
}
static const struct cl_page_operations lov_raid0_page_ops = {
- .cpo_is_under_lock = lov_raid0_page_is_under_lock,
.cpo_print = lov_raid0_page_print
};
struct lov_io_sub *sub;
struct lov_page *lpg = cl_object_page_slice(obj, page);
loff_t offset;
- obd_off suboff;
+ loff_t suboff;
int stripe;
int rc;
ENTRY;
&suboff);
LASSERT(rc == 0);
+ lpg->lps_stripe = stripe;
cl_page_slice_add(page, &lpg->lps_cl, obj, index, &lov_raid0_page_ops);
sub = lov_sub_get(env, lio, stripe);
RETURN(PTR_ERR(sub));
subobj = lovsub2cl(r0->lo_sub[stripe]);
- cfs_list_for_each_entry(o, &subobj->co_lu.lo_header->loh_layers,
- co_lu.lo_linkage) {
+ list_for_each_entry(o, &subobj->co_lu.lo_header->loh_layers,
+ co_lu.lo_linkage) {
if (o->co_ops->coo_page_init != NULL) {
rc = o->co_ops->coo_page_init(sub->sub_env, o, page,
cl_index(subobj, suboff));