2 * Data types and function declerations for interfacing with the
3 * pNFS standard object layout driver.
5 * Copyright (C) 2007 Panasas Inc. [year of first publication]
8 * Benny Halevy <bhalevy@panasas.com>
9 * Boaz Harrosh <bharrosh@panasas.com>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2
13 * See the file COPYING included with this distribution for more details.
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
24 * 3. Neither the name of the Panasas company nor the names of its
25 * contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
30 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
31 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
35 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
36 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44 #include <linux/nfs_fs.h>
45 #include <linux/pnfs_osd_xdr.h>
51 extern int objio_alloc_lseg(struct pnfs_layout_segment **outp,
52 struct pnfs_layout_hdr *pnfslay,
53 struct pnfs_layout_range *range,
54 struct xdr_stream *xdr,
56 extern void objio_free_lseg(struct pnfs_layout_segment *lseg);
59 * exported generic objects function vectors
61 extern struct pnfs_layout_segment *objlayout_alloc_lseg(
62 struct pnfs_layout_hdr *,
63 struct nfs4_layoutget_res *,
65 extern void objlayout_free_lseg(struct pnfs_layout_segment *);
67 #endif /* _OBJLAYOUT_H */