89be503021
Some on disk exofs constants and types are defined in the pnfs_osd_xdr.h file. Since we needed these types before the pnfs-objects code was accepted to mainline we duplicated the minimal needed definitions into an exofs local header. The definitions where conditionally included depending on !CONFIG_PNFS defined. So if PNFS was present in the tree definitions are taken from there and if not they are defined locally. That was all good but, the CONFIG_PNFS is planed to be included upstream before the pnfs-objects is also included. (The first pnfs batch might be pnfs-files only) So condition exofs local definitions on the absence of pnfs_osd_xdr.h inclusion (__PNFS_OSD_XDR_H__ not defined). User code must make sure that in future pnfs_osd_xdr.h will be included before fs/exofs/pnfs.h, which happens to be so in current code. Once pnfs-objects hits mainline, exofs's local header will be removed. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
45 lines
925 B
C
45 lines
925 B
C
/*
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* Copyright (C) 2008, 2009
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* Boaz Harrosh <bharrosh@panasas.com>
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*
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* This file is part of exofs.
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*
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* exofs is free software; you can redistribute it and/or modify it under the
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* terms of the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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*/
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/* FIXME: Remove this file once pnfs hits mainline */
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#ifndef __EXOFS_PNFS_H__
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#define __EXOFS_PNFS_H__
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#if ! defined(__PNFS_OSD_XDR_H__)
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enum pnfs_iomode {
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IOMODE_READ = 1,
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IOMODE_RW = 2,
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IOMODE_ANY = 3,
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};
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/* Layout Structure */
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enum pnfs_osd_raid_algorithm4 {
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PNFS_OSD_RAID_0 = 1,
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PNFS_OSD_RAID_4 = 2,
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PNFS_OSD_RAID_5 = 3,
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PNFS_OSD_RAID_PQ = 4 /* Reed-Solomon P+Q */
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};
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struct pnfs_osd_data_map {
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u32 odm_num_comps;
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u64 odm_stripe_unit;
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u32 odm_group_width;
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u32 odm_group_depth;
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u32 odm_mirror_cnt;
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u32 odm_raid_algorithm;
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};
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#endif /* ! defined(__PNFS_OSD_XDR_H__) */
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#endif /* __EXOFS_PNFS_H__ */
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