Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / staging / lustre / lustre / ptlrpc / pers.c

diff --git a/kernel/drivers/staging/lustre/lustre/ptlrpc/pers.c b/kernel/drivers/staging/lustre/lustre/ptlrpc/pers.c
new file mode 100644 (file)
index 0000000..e1334c2
--- /dev/null
+++ b/kernel/drivers/staging/lustre/lustre/ptlrpc/pers.c
@@ -0,0 +1,75 @@
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ */
+
+#define DEBUG_SUBSYSTEM S_RPC
+
+#include "../include/obd_support.h"
+#include "../include/obd_class.h"
+#include "../include/lustre_lib.h"
+#include "../include/lustre_ha.h"
+#include "../include/lustre_import.h"
+
+#include "ptlrpc_internal.h"
+
+
+void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc,
+                        int mdidx)
+{
+       CLASSERT(PTLRPC_MAX_BRW_PAGES < LI_POISON);
+
+       LASSERT(mdidx < desc->bd_md_max_brw);
+       LASSERT(desc->bd_iov_count <= PTLRPC_MAX_BRW_PAGES);
+       LASSERT(!(md->options & (LNET_MD_IOVEC | LNET_MD_KIOV |
+                                LNET_MD_PHYS)));
+
+       md->options |= LNET_MD_KIOV;
+       md->length = max(0, desc->bd_iov_count - mdidx * LNET_MAX_IOV);
+       md->length = min_t(unsigned int, LNET_MAX_IOV, md->length);
+       if (desc->bd_enc_iov)
+               md->start = &desc->bd_enc_iov[mdidx * LNET_MAX_IOV];
+       else
+               md->start = &desc->bd_iov[mdidx * LNET_MAX_IOV];
+}
+
+void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, struct page *page,
+                         int pageoffset, int len)
+{
+       lnet_kiov_t *kiov = &desc->bd_iov[desc->bd_iov_count];
+
+       kiov->kiov_page = page;
+       kiov->kiov_offset = pageoffset;
+       kiov->kiov_len = len;
+
+       desc->bd_iov_count++;
+}