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