| 1 | /* $NetBSD: rf_dagdegwr.h,v 1.6 2006/05/14 21:45:00 elad Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 1995 Carnegie-Mellon University. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Author: Mark Holland, Daniel Stodolsky, William V. Courtright II |
| 7 | * |
| 8 | * Permission to use, copy, modify and distribute this software and |
| 9 | * its documentation is hereby granted, provided that both the copyright |
| 10 | * notice and this permission notice appear in all copies of the |
| 11 | * software, derivative works or modified versions, and any portions |
| 12 | * thereof, and that both notices appear in supporting documentation. |
| 13 | * |
| 14 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
| 15 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND |
| 16 | * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| 17 | * |
| 18 | * Carnegie Mellon requests users of this software to return to |
| 19 | * |
| 20 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| 21 | * School of Computer Science |
| 22 | * Carnegie Mellon University |
| 23 | * Pittsburgh PA 15213-3890 |
| 24 | * |
| 25 | * any improvements or extensions that they make and grant Carnegie the |
| 26 | * rights to redistribute these changes. |
| 27 | */ |
| 28 | |
| 29 | |
| 30 | #ifndef _RF__RF_DAGDEGWR_H_ |
| 31 | #define _RF__RF_DAGDEGWR_H_ |
| 32 | |
| 33 | /* degraded write DAG creation routines */ |
| 34 | void rf_CreateDegradedWriteDAG(RF_Raid_t * raidPtr, |
| 35 | RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp, |
| 36 | RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList); |
| 37 | |
| 38 | void rf_CommonCreateSimpleDegradedWriteDAG(RF_Raid_t * raidPtr, |
| 39 | RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp, |
| 40 | RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList, |
| 41 | int nfaults, int (*redFunc) (RF_DagNode_t *), int allowBufferRecycle); |
| 42 | |
| 43 | void rf_WriteGenerateFailedAccessASMs(RF_Raid_t * raidPtr, |
| 44 | RF_AccessStripeMap_t * asmap, RF_PhysDiskAddr_t ** pdap, |
| 45 | int *nNodep, RF_PhysDiskAddr_t ** pqpdap, |
| 46 | int *nPQNodep, RF_AllocListElem_t * allocList); |
| 47 | |
| 48 | void rf_DoubleDegSmallWrite(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap, |
| 49 | RF_DagHeader_t * dag_h, void *bp, RF_RaidAccessFlags_t flags, |
| 50 | RF_AllocListElem_t * allocList, const char *redundantReadNodeName, |
| 51 | const char *redundantWriteNodeName, const char *recoveryNodeName, |
| 52 | int (*recovFunc) (RF_DagNode_t *)); |
| 53 | |
| 54 | #endif /* !_RF__RF_DAGDEGWR_H_ */ |
| 55 | |