-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
lov_page_own(env, slice, io, 0);
}
+static int lov_page_cache_add(const struct lu_env *env,
+ const struct cl_page_slice *slice,
+ struct cl_io *io)
+{
+ struct lov_io *lio = lov_env_io(env);
+ struct lov_io_sub *sub;
+ int rc = 0;
+
+ LINVRNT(lov_page_invariant(slice));
+ LINVRNT(!cl2lov_page(slice)->lps_invalid);
+ ENTRY;
+
+ sub = lov_page_subio(env, lio, slice);
+ if (!IS_ERR(sub)) {
+ rc = cl_page_cache_add(sub->sub_env, sub->sub_io,
+ slice->cpl_page->cp_child, CRT_WRITE);
+ lov_sub_put(sub);
+ } else {
+ rc = PTR_ERR(sub);
+ CL_PAGE_DEBUG(D_ERROR, env, slice->cpl_page, "rc = %d\n", rc);
+ }
+ RETURN(rc);
+}
+
static int lov_page_print(const struct lu_env *env,
const struct cl_page_slice *slice,
void *cookie, lu_printer_t printer)
.cpo_fini = lov_page_fini,
.cpo_own = lov_page_own,
.cpo_assume = lov_page_assume,
+ .io = {
+ [CRT_WRITE] = {
+ .cpo_cache_add = lov_page_cache_add
+ }
+ },
.cpo_print = lov_page_print
};
lpg->lps_invalid = 0;
result = NULL;
} else {
- /*
- * This is only possible when TRANSIENT page
- * is being created, and CACHEABLE sub-page
- * (attached to already existing top-page) has
- * been found. Tell cl_page_find() to use
- * existing page.
- */
- LASSERT(subpage->cp_type == CPT_CACHEABLE);
- LASSERT(page->cp_type == CPT_TRANSIENT);
- /* TODO: this is problematic, what if the page is being freed? */
- result = cl_page_top(subpage);
- cl_page_get(result);
- cl_page_put(env, subpage);
+ CL_PAGE_DEBUG(D_ERROR, env, page, "parent page\n");
+ CL_PAGE_DEBUG(D_ERROR, env, subpage, "child page\n");
+ LASSERT(0);
}
EXIT;