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TOMOYO Linux Cross Reference
Linux/fs/exofs/pnfs.h

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  1 /*
  2  * Copyright (C) 2008, 2009
  3  * Boaz Harrosh <bharrosh@panasas.com>
  4  *
  5  * This file is part of exofs.
  6  *
  7  * exofs is free software; you can redistribute it and/or modify it under the
  8  * terms of the GNU General Public License  version 2 as published by the Free
  9  * Software Foundation.
 10  *
 11  */
 12 
 13 /* FIXME: Remove this file once pnfs hits mainline */
 14 
 15 #ifndef __EXOFS_PNFS_H__
 16 #define __EXOFS_PNFS_H__
 17 
 18 #if ! defined(__PNFS_OSD_XDR_H__)
 19 
 20 enum pnfs_iomode {
 21         IOMODE_READ = 1,
 22         IOMODE_RW = 2,
 23         IOMODE_ANY = 3,
 24 };
 25 
 26 /* Layout Structure */
 27 enum pnfs_osd_raid_algorithm4 {
 28         PNFS_OSD_RAID_0         = 1,
 29         PNFS_OSD_RAID_4         = 2,
 30         PNFS_OSD_RAID_5         = 3,
 31         PNFS_OSD_RAID_PQ        = 4     /* Reed-Solomon P+Q */
 32 };
 33 
 34 struct pnfs_osd_data_map {
 35         u32     odm_num_comps;
 36         u64     odm_stripe_unit;
 37         u32     odm_group_width;
 38         u32     odm_group_depth;
 39         u32     odm_mirror_cnt;
 40         u32     odm_raid_algorithm;
 41 };
 42 
 43 #endif /* ! defined(__PNFS_OSD_XDR_H__) */
 44 
 45 #endif /* __EXOFS_PNFS_H__ */
 46 

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